[FFmpeg-cvslog] Remove avconv
Michael Niedermayer
git at videolan.org
Thu Jan 26 00:12:43 CET 2012
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Jan 24 21:55:47 2012 +0100| [def678956a19767e4ef714c8f4d43dd96f4ce967] | committer: Michael Niedermayer
Remove avconv
All features have been merged into ffmpeg.
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=def678956a19767e4ef714c8f4d43dd96f4ce967
---
Makefile | 3 +-
avconv.c | 4669 -------------------------------------------------------
configure | 3 -
doc/avconv.texi | 1063 -------------
4 files changed, 1 insertions(+), 5737 deletions(-)
diff --git a/Makefile b/Makefile
index 69b4c9f..55c26e1 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,6 @@ vpath %.texi $(SRC_PATH)
vpath %/fate_config.sh.template $(SRC_PATH)
PROGS-$(CONFIG_FFMPEG) += ffmpeg
-PROGS-$(CONFIG_AVCONV) += avconv
PROGS-$(CONFIG_FFPLAY) += ffplay
PROGS-$(CONFIG_FFPROBE) += ffprobe
PROGS-$(CONFIG_FFSERVER) += ffserver
@@ -24,7 +23,7 @@ HOSTPROGS := $(TESTTOOLS:%=tests/%)
TOOLS = qt-faststart trasher
TOOLS-$(CONFIG_ZLIB) += cws2fws
-BASENAMES = ffmpeg avconv ffplay ffprobe ffserver
+BASENAMES = ffmpeg ffplay ffprobe ffserver
ALLPROGS = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
ALLPROGS_G = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
ALLMANPAGES = $(BASENAMES:%=%.1)
diff --git a/avconv.c b/avconv.c
deleted file mode 100644
index 59e12ff..0000000
--- a/avconv.c
+++ /dev/null
@@ -1,4669 +0,0 @@
-/*
- * ffmpeg main
- * Copyright (c) 2000-2003 Fabrice Bellard
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "config.h"
-#include <ctype.h>
-#include <string.h>
-#include <math.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <signal.h>
-#include <limits.h>
-#include <unistd.h>
-#include "libavformat/avformat.h"
-#include "libavdevice/avdevice.h"
-#include "libswscale/swscale.h"
-#include "libavutil/opt.h"
-#include "libavcodec/audioconvert.h"
-#include "libavutil/audioconvert.h"
-#include "libavutil/parseutils.h"
-#include "libavutil/samplefmt.h"
-#include "libavutil/colorspace.h"
-#include "libavutil/fifo.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/dict.h"
-#include "libavutil/mathematics.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/avstring.h"
-#include "libavutil/libm.h"
-#include "libavutil/imgutils.h"
-#include "libavformat/os_support.h"
-
-#include "libavformat/ffm.h" // not public API
-
-#if CONFIG_AVFILTER
-# include "libavfilter/avcodec.h"
-# include "libavfilter/avfilter.h"
-# include "libavfilter/avfiltergraph.h"
-# include "libavfilter/buffersink.h"
-# include "libavfilter/buffersrc.h"
-# include "libavfilter/vsrc_buffer.h"
-#endif
-
-#if HAVE_SYS_RESOURCE_H
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#elif HAVE_GETPROCESSTIMES
-#include <windows.h>
-#endif
-#if HAVE_GETPROCESSMEMORYINFO
-#include <windows.h>
-#include <psapi.h>
-#endif
-
-#if HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-
-#if HAVE_TERMIOS_H
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <termios.h>
-#elif HAVE_KBHIT
-#include <conio.h>
-#endif
-#include <time.h>
-
-#include "cmdutils.h"
-
-#include "libavutil/avassert.h"
-
-#define VSYNC_AUTO -1
-#define VSYNC_PASSTHROUGH 0
-#define VSYNC_CFR 1
-#define VSYNC_VFR 2
-
-const char program_name[] = "avconv";
-const int program_birth_year = 2000;
-
-/* select an input stream for an output stream */
-typedef struct StreamMap {
- int disabled; /** 1 is this mapping is disabled by a negative map */
- int file_index;
- int stream_index;
- int sync_file_index;
- int sync_stream_index;
-} StreamMap;
-
-/**
- * select an input file for an output file
- */
-typedef struct MetadataMap {
- int file; ///< file index
- char type; ///< type of metadata to copy -- (g)lobal, (s)tream, (c)hapter or (p)rogram
- int index; ///< stream/chapter/program number
-} MetadataMap;
-
-static const OptionDef options[];
-
-#define MAX_STREAMS 1024 /* arbitrary sanity check value */
-
-static int frame_bits_per_raw_sample = 0;
-static int video_discard = 0;
-static int same_quant = 0;
-static int do_deinterlace = 0;
-static int intra_dc_precision = 8;
-static int qp_hist = 0;
-
-static int file_overwrite = 0;
-static int no_file_overwrite = 0;
-static int do_benchmark = 0;
-static int do_hex_dump = 0;
-static int do_pkt_dump = 0;
-static int do_pass = 0;
-static const char *pass_logfilename_prefix;
-static int video_sync_method = VSYNC_AUTO;
-static int audio_sync_method = 0;
-static float audio_drift_threshold = 0.1;
-static int copy_ts = 0;
-static int copy_tb = 1;
-static int opt_shortest = 0;
-static char *vstats_filename;
-static FILE *vstats_file;
-
-static int audio_volume = 256;
-
-static int exit_on_error = 0;
-static int using_stdin = 0;
-static int run_as_daemon = 0;
-static int q_pressed = 0;
-static int64_t video_size = 0;
-static int64_t audio_size = 0;
-static int64_t extra_size = 0;
-static int nb_frames_dup = 0;
-static int nb_frames_drop = 0;
-static int input_sync;
-
-static float dts_delta_threshold = 10;
-
-static int print_stats = 1;
-
-static uint8_t *audio_buf;
-static unsigned int allocated_audio_buf_size;
-
-#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
-
-typedef struct FrameBuffer {
- uint8_t *base[4];
- uint8_t *data[4];
- int linesize[4];
-
- int h, w;
- enum PixelFormat pix_fmt;
-
- int refcount;
- struct InputStream *ist;
- struct FrameBuffer *next;
-} FrameBuffer;
-
-typedef struct InputStream {
- int file_index;
- AVStream *st;
- int discard; /* true if stream data should be discarded */
- int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
- AVCodec *dec;
- AVFrame *decoded_frame;
- AVFrame *filtered_frame;
-
- int64_t start; /* time when read started */
- int64_t next_pts; /* synthetic pts for cases where pkt.pts
- is not defined */
- int64_t pts; /* current pts */
- double ts_scale;
- int is_start; /* is 1 at the start and after a discontinuity */
- int showed_multi_packet_warning;
- AVDictionary *opts;
-
- /* a pool of free buffers for decoded data */
- FrameBuffer *buffer_pool;
-} InputStream;
-
-typedef struct InputFile {
- AVFormatContext *ctx;
- int eof_reached; /* true if eof reached */
- int ist_index; /* index of first stream in ist_table */
- int buffer_size; /* current total buffer size */
- int64_t ts_offset;
- int nb_streams; /* number of stream that avconv is aware of; may be different
- from ctx.nb_streams if new streams appear during av_read_frame() */
- int rate_emu;
-} InputFile;
-
-typedef struct OutputStream {
- int file_index; /* file index */
- int index; /* stream index in the output file */
- int source_index; /* InputStream index */
- AVStream *st; /* stream in the output file */
- int encoding_needed; /* true if encoding needed for this stream */
- int frame_number;
- /* input pts and corresponding output pts
- for A/V sync */
- // double sync_ipts; /* dts from the AVPacket of the demuxer in second units */
- struct InputStream *sync_ist; /* input stream to sync against */
- int64_t sync_opts; /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
- AVBitStreamFilterContext *bitstream_filters;
- AVCodec *enc;
- int64_t max_frames;
- AVFrame *output_frame;
-
- /* video only */
- int video_resample;
- AVFrame resample_frame; /* temporary frame for image resampling */
- struct SwsContext *img_resample_ctx; /* for image resampling */
- int resample_height;
- int resample_width;
- int resample_pix_fmt;
- AVRational frame_rate;
- int force_fps;
- int top_field_first;
-
- float frame_aspect_ratio;
-
- /* forced key frames */
- int64_t *forced_kf_pts;
- int forced_kf_count;
- int forced_kf_index;
-
- /* audio only */
- int audio_resample;
- ReSampleContext *resample; /* for audio resampling */
- int resample_sample_fmt;
- int resample_channels;
- int resample_sample_rate;
- int reformat_pair;
- AVAudioConvert *reformat_ctx;
- AVFifoBuffer *fifo; /* for compression: one audio fifo per codec */
- FILE *logfile;
-
-#if CONFIG_AVFILTER
- AVFilterContext *output_video_filter;
- AVFilterContext *input_video_filter;
- AVFilterBufferRef *picref;
- char *avfilter;
- AVFilterGraph *graph;
-#endif
-
- int64_t sws_flags;
- AVDictionary *opts;
- int is_past_recording_time;
- int stream_copy;
- const char *attachment_filename;
- int copy_initial_nonkeyframes;
-} OutputStream;
-
-#if HAVE_TERMIOS_H
-
-/* init terminal so that we can grab keys */
-static struct termios oldtty;
-#endif
-
-typedef struct OutputFile {
- AVFormatContext *ctx;
- AVDictionary *opts;
- int ost_index; /* index of the first stream in output_streams */
- int64_t recording_time; /* desired length of the resulting file in microseconds */
- int64_t start_time; /* start time in microseconds */
- uint64_t limit_filesize;
-} OutputFile;
-
-static InputStream *input_streams = NULL;
-static int nb_input_streams = 0;
-static InputFile *input_files = NULL;
-static int nb_input_files = 0;
-
-static OutputStream *output_streams = NULL;
-static int nb_output_streams = 0;
-static OutputFile *output_files = NULL;
-static int nb_output_files = 0;
-
-typedef struct OptionsContext {
- /* input/output options */
- int64_t start_time;
- const char *format;
-
- SpecifierOpt *codec_names;
- int nb_codec_names;
- SpecifierOpt *audio_channels;
- int nb_audio_channels;
- SpecifierOpt *audio_sample_rate;
- int nb_audio_sample_rate;
- SpecifierOpt *frame_rates;
- int nb_frame_rates;
- SpecifierOpt *frame_sizes;
- int nb_frame_sizes;
- SpecifierOpt *frame_pix_fmts;
- int nb_frame_pix_fmts;
-
- /* input options */
- int64_t input_ts_offset;
- int rate_emu;
-
- SpecifierOpt *ts_scale;
- int nb_ts_scale;
- SpecifierOpt *dump_attachment;
- int nb_dump_attachment;
-
- /* output options */
- StreamMap *stream_maps;
- int nb_stream_maps;
- /* first item specifies output metadata, second is input */
- MetadataMap (*meta_data_maps)[2];
- int nb_meta_data_maps;
- int metadata_global_manual;
- int metadata_streams_manual;
- int metadata_chapters_manual;
- const char **attachments;
- int nb_attachments;
-
- int chapters_input_file;
-
- int64_t recording_time;
- uint64_t limit_filesize;
- float mux_preload;
- float mux_max_delay;
-
- int video_disable;
- int audio_disable;
- int subtitle_disable;
- int data_disable;
-
- /* indexed by output file stream index */
- int *streamid_map;
- int nb_streamid_map;
-
- SpecifierOpt *metadata;
- int nb_metadata;
- SpecifierOpt *max_frames;
- int nb_max_frames;
- SpecifierOpt *bitstream_filters;
- int nb_bitstream_filters;
- SpecifierOpt *codec_tags;
- int nb_codec_tags;
- SpecifierOpt *sample_fmts;
- int nb_sample_fmts;
- SpecifierOpt *qscale;
- int nb_qscale;
- SpecifierOpt *forced_key_frames;
- int nb_forced_key_frames;
- SpecifierOpt *force_fps;
- int nb_force_fps;
- SpecifierOpt *frame_aspect_ratios;
- int nb_frame_aspect_ratios;
- SpecifierOpt *rc_overrides;
- int nb_rc_overrides;
- SpecifierOpt *intra_matrices;
- int nb_intra_matrices;
- SpecifierOpt *inter_matrices;
- int nb_inter_matrices;
- SpecifierOpt *top_field_first;
- int nb_top_field_first;
- SpecifierOpt *metadata_map;
- int nb_metadata_map;
- SpecifierOpt *presets;
- int nb_presets;
- SpecifierOpt *copy_initial_nonkeyframes;
- int nb_copy_initial_nonkeyframes;
-#if CONFIG_AVFILTER
- SpecifierOpt *filters;
- int nb_filters;
-#endif
-} OptionsContext;
-
-#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
-{\
- int i, ret;\
- for (i = 0; i < o->nb_ ## name; i++) {\
- char *spec = o->name[i].specifier;\
- if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
- outvar = o->name[i].u.type;\
- else if (ret < 0)\
- exit_program(1);\
- }\
-}
-
-static void reset_options(OptionsContext *o)
-{
- const OptionDef *po = options;
-
- /* all OPT_SPEC and OPT_STRING can be freed in generic way */
- while (po->name) {
- void *dst = (uint8_t*)o + po->u.off;
-
- if (po->flags & OPT_SPEC) {
- SpecifierOpt **so = dst;
- int i, *count = (int*)(so + 1);
- for (i = 0; i < *count; i++) {
- av_freep(&(*so)[i].specifier);
- if (po->flags & OPT_STRING)
- av_freep(&(*so)[i].u.str);
- }
- av_freep(so);
- *count = 0;
- } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
- av_freep(dst);
- po++;
- }
-
- av_freep(&o->stream_maps);
- av_freep(&o->meta_data_maps);
- av_freep(&o->streamid_map);
-
- memset(o, 0, sizeof(*o));
-
- o->mux_max_delay = 0.7;
- o->recording_time = INT64_MAX;
- o->limit_filesize = UINT64_MAX;
- o->chapters_input_file = INT_MAX;
-
- uninit_opts();
- init_opts();
-}
-
-static int alloc_buffer(InputStream *ist, FrameBuffer **pbuf)
-{
- AVCodecContext *s = ist->st->codec;
- FrameBuffer *buf = av_mallocz(sizeof(*buf));
- int ret;
- const int pixel_size = av_pix_fmt_descriptors[s->pix_fmt].comp[0].step_minus1+1;
- int h_chroma_shift, v_chroma_shift;
- int edge = 32; // XXX should be avcodec_get_edge_width(), but that fails on svq1
- int w = s->width, h = s->height;
-
- if (!buf)
- return AVERROR(ENOMEM);
-
- if (!(s->flags & CODEC_FLAG_EMU_EDGE)) {
- w += 2*edge;
- h += 2*edge;
- }
-
- avcodec_align_dimensions(s, &w, &h);
- if ((ret = av_image_alloc(buf->base, buf->linesize, w, h,
- s->pix_fmt, 32)) < 0) {
- av_freep(&buf);
- return ret;
- }
- /* XXX this shouldn't be needed, but some tests break without this line
- * those decoders are buggy and need to be fixed.
- * the following tests fail:
- * bethsoft-vid, cdgraphics, ansi, aasc, fraps-v1, qtrle-1bit
- */
- memset(buf->base[0], 128, ret);
-
- avcodec_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift);
- for (int i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
- const int h_shift = i==0 ? 0 : h_chroma_shift;
- const int v_shift = i==0 ? 0 : v_chroma_shift;
- if (s->flags & CODEC_FLAG_EMU_EDGE)
- buf->data[i] = buf->base[i];
- else
- buf->data[i] = buf->base[i] +
- FFALIGN((buf->linesize[i]*edge >> v_shift) +
- (pixel_size*edge >> h_shift), 32);
- }
- buf->w = s->width;
- buf->h = s->height;
- buf->pix_fmt = s->pix_fmt;
- buf->ist = ist;
-
- *pbuf = buf;
- return 0;
-}
-
-static void free_buffer_pool(InputStream *ist)
-{
- FrameBuffer *buf = ist->buffer_pool;
- while (buf) {
- ist->buffer_pool = buf->next;
- av_freep(&buf->base[0]);
- av_free(buf);
- buf = ist->buffer_pool;
- }
-}
-
-static void unref_buffer(InputStream *ist, FrameBuffer *buf)
-{
- av_assert0(buf->refcount);
- buf->refcount--;
- if (!buf->refcount) {
- buf->next = ist->buffer_pool;
- ist->buffer_pool = buf;
- }
-}
-
-static int codec_get_buffer(AVCodecContext *s, AVFrame *frame)
-{
- InputStream *ist = s->opaque;
- FrameBuffer *buf;
- int ret, i;
-
- if (!ist->buffer_pool && (ret = alloc_buffer(ist, &ist->buffer_pool)) < 0)
- return ret;
-
- buf = ist->buffer_pool;
- ist->buffer_pool = buf->next;
- buf->next = NULL;
- if (buf->w != s->width || buf->h != s->height || buf->pix_fmt != s->pix_fmt) {
- av_freep(&buf->base[0]);
- av_free(buf);
- if ((ret = alloc_buffer(ist, &buf)) < 0)
- return ret;
- }
- buf->refcount++;
-
- frame->opaque = buf;
- frame->type = FF_BUFFER_TYPE_USER;
- frame->extended_data = frame->data;
- frame->pkt_pts = s->pkt ? s->pkt->pts : AV_NOPTS_VALUE;
-
- for (i = 0; i < FF_ARRAY_ELEMS(buf->data); i++) {
- frame->base[i] = buf->base[i]; // XXX h264.c uses base though it shouldn't
- frame->data[i] = buf->data[i];
- frame->linesize[i] = buf->linesize[i];
- }
-
- return 0;
-}
-
-static void codec_release_buffer(AVCodecContext *s, AVFrame *frame)
-{
- InputStream *ist = s->opaque;
- FrameBuffer *buf = frame->opaque;
- int i;
-
- for (i = 0; i < FF_ARRAY_ELEMS(frame->data); i++)
- frame->data[i] = NULL;
-
- unref_buffer(ist, buf);
-}
-
-static void filter_release_buffer(AVFilterBuffer *fb)
-{
- FrameBuffer *buf = fb->priv;
- av_free(fb);
- unref_buffer(buf->ist, buf);
-}
-
-#if CONFIG_AVFILTER
-
-static int configure_video_filters(InputStream *ist, OutputStream *ost)
-{
- AVFilterContext *last_filter, *filter;
- /** filter graph containing all filters including input & output */
- AVCodecContext *codec = ost->st->codec;
- AVCodecContext *icodec = ist->st->codec;
- enum PixelFormat pix_fmts[] = { codec->pix_fmt, PIX_FMT_NONE };
- AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc();
- AVRational sample_aspect_ratio;
- char args[255];
- int ret;
-
- ost->graph = avfilter_graph_alloc();
-
- if (ist->st->sample_aspect_ratio.num) {
- sample_aspect_ratio = ist->st->sample_aspect_ratio;
- } else
- sample_aspect_ratio = ist->st->codec->sample_aspect_ratio;
-
- snprintf(args, 255, "%d:%d:%d:%d:%d:%d:%d", ist->st->codec->width,
- ist->st->codec->height, ist->st->codec->pix_fmt, 1, AV_TIME_BASE,
- sample_aspect_ratio.num, sample_aspect_ratio.den);
-
- ret = avfilter_graph_create_filter(&ost->input_video_filter, avfilter_get_by_name("buffer"),
- "src", args, NULL, ost->graph);
- if (ret < 0)
- return ret;
-#if FF_API_OLD_VSINK_API
- ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
- "out", NULL, pix_fmts, ost->graph);
-#else
- buffersink_params->pixel_fmts = pix_fmts;
- ret = avfilter_graph_create_filter(&ost->output_video_filter, avfilter_get_by_name("buffersink"),
- "out", NULL, buffersink_params, ost->graph);
-#endif
- av_freep(&buffersink_params);
- if (ret < 0)
- return ret;
- last_filter = ost->input_video_filter;
-
- if (codec->width != icodec->width || codec->height != icodec->height) {
- snprintf(args, 255, "%d:%d:flags=0x%X",
- codec->width,
- codec->height,
- (unsigned)ost->sws_flags);
- if ((ret = avfilter_graph_create_filter(&filter, avfilter_get_by_name("scale"),
- NULL, args, NULL, ost->graph)) < 0)
- return ret;
- if ((ret = avfilter_link(last_filter, 0, filter, 0)) < 0)
- return ret;
- last_filter = filter;
- }
-
- snprintf(args, sizeof(args), "flags=0x%X", (unsigned)ost->sws_flags);
- ost->graph->scale_sws_opts = av_strdup(args);
-
- if (ost->avfilter) {
- AVFilterInOut *outputs = avfilter_inout_alloc();
- AVFilterInOut *inputs = avfilter_inout_alloc();
-
- outputs->name = av_strdup("in");
- outputs->filter_ctx = last_filter;
- outputs->pad_idx = 0;
- outputs->next = NULL;
-
- inputs->name = av_strdup("out");
- inputs->filter_ctx = ost->output_video_filter;
- inputs->pad_idx = 0;
- inputs->next = NULL;
-
- if ((ret = avfilter_graph_parse(ost->graph, ost->avfilter, &inputs, &outputs, NULL)) < 0)
- return ret;
- } else {
- if ((ret = avfilter_link(last_filter, 0, ost->output_video_filter, 0)) < 0)
- return ret;
- }
-
- if ((ret = avfilter_graph_config(ost->graph, NULL)) < 0)
- return ret;
-
- codec->width = ost->output_video_filter->inputs[0]->w;
- codec->height = ost->output_video_filter->inputs[0]->h;
- codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
- ost->frame_aspect_ratio ? // overridden by the -aspect cli option
- av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
- ost->output_video_filter->inputs[0]->sample_aspect_ratio;
-
- return 0;
-}
-#endif /* CONFIG_AVFILTER */
-
-static void term_exit(void)
-{
- av_log(NULL, AV_LOG_QUIET, "%s", "");
-#if HAVE_TERMIOS_H
- if(!run_as_daemon)
- tcsetattr (0, TCSANOW, &oldtty);
-#endif
-}
-
-static volatile int received_sigterm = 0;
-
-static void
-sigterm_handler(int sig)
-{
- received_sigterm = sig;
- q_pressed++;
- term_exit();
-}
-
-static void term_init(void)
-{
-#if HAVE_TERMIOS_H
- if(!run_as_daemon){
- struct termios tty;
-
- tcgetattr (0, &tty);
- oldtty = tty;
- atexit(term_exit);
-
- tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
- |INLCR|IGNCR|ICRNL|IXON);
- tty.c_oflag |= OPOST;
- tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
- tty.c_cflag &= ~(CSIZE|PARENB);
- tty.c_cflag |= CS8;
- tty.c_cc[VMIN] = 1;
- tty.c_cc[VTIME] = 0;
-
- tcsetattr (0, TCSANOW, &tty);
- signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */
- }
-#endif
-
- signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */
- signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */
-#ifdef SIGXCPU
- signal(SIGXCPU, sigterm_handler);
-#endif
-}
-
-/* read a key without blocking */
-static int read_key(void)
-{
-#if HAVE_TERMIOS_H
- int n = 1;
- unsigned char ch;
- struct timeval tv;
- fd_set rfds;
-
- if(run_as_daemon)
- return -1;
-
- FD_ZERO(&rfds);
- FD_SET(0, &rfds);
- tv.tv_sec = 0;
- tv.tv_usec = 0;
- n = select(1, &rfds, NULL, NULL, &tv);
- if (n > 0) {
- n = read(0, &ch, 1);
- if (n == 1)
- return ch;
-
- return n;
- }
-#elif HAVE_KBHIT
- if(kbhit())
- return(getch());
-#endif
- return -1;
-}
-
-static int decode_interrupt_cb(void *ctx)
-{
- q_pressed += read_key() == 'q';
- return q_pressed > 1;
-}
-
-static const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
-
-void exit_program(int ret)
-{
- int i;
-
- /* close files */
- for (i = 0; i < nb_output_files; i++) {
- AVFormatContext *s = output_files[i].ctx;
- if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
- avio_close(s->pb);
- avformat_free_context(s);
- av_dict_free(&output_files[i].opts);
- }
- for (i = 0; i < nb_output_streams; i++) {
- AVBitStreamFilterContext *bsfc = output_streams[i].bitstream_filters;
- while (bsfc) {
- AVBitStreamFilterContext *next = bsfc->next;
- av_bitstream_filter_close(bsfc);
- bsfc = next;
- }
- output_streams[i].bitstream_filters = NULL;
-
- if (output_streams[i].output_frame) {
- AVFrame *frame = output_streams[i].output_frame;
- if (frame->extended_data != frame->data)
- av_freep(&frame->extended_data);
- av_freep(&frame);
- }
-
-#if CONFIG_AVFILTER
- av_freep(&output_streams[i].avfilter);
-#endif
- }
- for (i = 0; i < nb_input_files; i++) {
- avformat_close_input(&input_files[i].ctx);
- }
- for (i = 0; i < nb_input_streams; i++) {
- av_freep(&input_streams[i].decoded_frame);
- av_freep(&input_streams[i].filtered_frame);
- av_dict_free(&input_streams[i].opts);
- free_buffer_pool(&input_streams[i]);
- }
-
- if (vstats_file)
- fclose(vstats_file);
- av_free(vstats_filename);
-
- av_freep(&input_streams);
- av_freep(&input_files);
- av_freep(&output_streams);
- av_freep(&output_files);
-
- uninit_opts();
- av_free(audio_buf);
- allocated_audio_buf_size = 0;
-
-#if CONFIG_AVFILTER
- avfilter_uninit();
-#endif
- avformat_network_deinit();
-
- if (received_sigterm) {
- av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
- (int) received_sigterm);
- exit (255);
- }
-
- exit(ret);
-}
-
-static void assert_avoptions(AVDictionary *m)
-{
- AVDictionaryEntry *t;
- if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
- av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
- exit_program(1);
- }
-}
-
-static void assert_codec_experimental(AVCodecContext *c, int encoder)
-{
- const char *codec_string = encoder ? "encoder" : "decoder";
- AVCodec *codec;
- if (c->codec->capabilities & CODEC_CAP_EXPERIMENTAL &&
- c->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
- av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
- "results.\nAdd '-strict experimental' if you want to use it.\n",
- codec_string, c->codec->name);
- codec = encoder ? avcodec_find_encoder(c->codec->id) : avcodec_find_decoder(c->codec->id);
- if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
- av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
- codec_string, codec->name);
- exit_program(1);
- }
-}
-
-static void choose_sample_fmt(AVStream *st, AVCodec *codec)
-{
- if (codec && codec->sample_fmts) {
- const enum AVSampleFormat *p = codec->sample_fmts;
- for (; *p != -1; p++) {
- if (*p == st->codec->sample_fmt)
- break;
- }
- if (*p == -1) {
- if((codec->capabilities & CODEC_CAP_LOSSLESS) && av_get_sample_fmt_name(st->codec->sample_fmt) > av_get_sample_fmt_name(codec->sample_fmts[0]))
- av_log(NULL, AV_LOG_ERROR, "Convertion will not be lossless'\n");
- if(av_get_sample_fmt_name(st->codec->sample_fmt))
- av_log(NULL, AV_LOG_WARNING,
- "Incompatible sample format '%s' for codec '%s', auto-selecting format '%s'\n",
- av_get_sample_fmt_name(st->codec->sample_fmt),
- codec->name,
- av_get_sample_fmt_name(codec->sample_fmts[0]));
- st->codec->sample_fmt = codec->sample_fmts[0];
- }
- }
-}
-
-static void choose_sample_rate(AVStream *st, AVCodec *codec)
-{
- if (codec && codec->supported_samplerates) {
- const int *p = codec->supported_samplerates;
- int best = 0;
- int best_dist = INT_MAX;
- for (; *p; p++) {
- int dist = abs(st->codec->sample_rate - *p);
- if (dist < best_dist) {
- best_dist = dist;
- best = *p;
- }
- }
- if (best_dist) {
- av_log(st->codec, AV_LOG_WARNING, "Requested sampling rate unsupported using closest supported (%d)\n", best);
- }
- st->codec->sample_rate = best;
- }
-}
-
-static void choose_pixel_fmt(AVStream *st, AVCodec *codec)
-{
- if (codec && codec->pix_fmts) {
- const enum PixelFormat *p = codec->pix_fmts;
- if (st->codec->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) {
- if (st->codec->codec_id == CODEC_ID_MJPEG) {
- p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE };
- } else if (st->codec->codec_id == CODEC_ID_LJPEG) {
- p = (const enum PixelFormat[]) { PIX_FMT_YUVJ420P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ444P, PIX_FMT_YUV420P,
- PIX_FMT_YUV422P, PIX_FMT_YUV444P, PIX_FMT_BGRA, PIX_FMT_NONE };
- }
- }
- for (; *p != PIX_FMT_NONE; p++) {
- if (*p == st->codec->pix_fmt)
- break;
- }
- if (*p == PIX_FMT_NONE) {
- if (st->codec->pix_fmt != PIX_FMT_NONE)
- av_log(NULL, AV_LOG_WARNING,
- "Incompatible pixel format '%s' for codec '%s', auto-selecting format '%s'\n",
- av_pix_fmt_descriptors[st->codec->pix_fmt].name,
- codec->name,
- av_pix_fmt_descriptors[codec->pix_fmts[0]].name);
- st->codec->pix_fmt = codec->pix_fmts[0];
- }
- }
-}
-
-static double
-get_sync_ipts(const OutputStream *ost)
-{
- const InputStream *ist = ost->sync_ist;
- OutputFile *of = &output_files[ost->file_index];
- return (double)(ist->pts - of->start_time) / AV_TIME_BASE;
-}
-
-static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
-{
- AVBitStreamFilterContext *bsfc = ost->bitstream_filters;
- AVCodecContext *avctx = ost->st->codec;
- int ret;
-
- /*
- * Audio encoders may split the packets -- #frames in != #packets out.
- * But there is no reordering, so we can limit the number of output packets
- * by simply dropping them here.
- * Counting encoded video frames needs to be done separately because of
- * reordering, see do_video_out()
- */
- if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) {
- if (ost->frame_number >= ost->max_frames)
- return;
- ost->frame_number++;
- }
-
- while (bsfc) {
- AVPacket new_pkt = *pkt;
- int a = av_bitstream_filter_filter(bsfc, avctx, NULL,
- &new_pkt.data, &new_pkt.size,
- pkt->data, pkt->size,
- pkt->flags & AV_PKT_FLAG_KEY);
- if (a > 0) {
- av_free_packet(pkt);
- new_pkt.destruct = av_destruct_packet;
- } else if (a < 0) {
- av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
- bsfc->filter->name, pkt->stream_index,
- avctx->codec ? avctx->codec->name : "copy");
- print_error("", a);
- if (exit_on_error)
- exit_program(1);
- }
- *pkt = new_pkt;
-
- bsfc = bsfc->next;
- }
-
- ret = av_interleaved_write_frame(s, pkt);
- if (ret < 0) {
- print_error("av_interleaved_write_frame()", ret);
- exit_program(1);
- }
-}
-
-static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_t size)
-{
- int fill_char = 0x00;
- if (sample_fmt == AV_SAMPLE_FMT_U8)
- fill_char = 0x80;
- memset(buf, fill_char, size);
-}
-
-static int encode_audio_frame(AVFormatContext *s, OutputStream *ost,
- const uint8_t *buf, int buf_size)
-{
- AVCodecContext *enc = ost->st->codec;
- AVFrame *frame = NULL;
- AVPacket pkt;
- int ret, got_packet;
-
- av_init_packet(&pkt);
- pkt.data = NULL;
- pkt.size = 0;
-
- if (buf) {
- if (!ost->output_frame) {
- ost->output_frame = avcodec_alloc_frame();
- if (!ost->output_frame) {
- av_log(NULL, AV_LOG_FATAL, "out-of-memory in encode_audio_frame()\n");
- exit_program(1);
- }
- }
- frame = ost->output_frame;
- if (frame->extended_data != frame->data)
- av_freep(&frame->extended_data);
- avcodec_get_frame_defaults(frame);
-
- frame->nb_samples = buf_size /
- (enc->channels * av_get_bytes_per_sample(enc->sample_fmt));
- if ((ret = avcodec_fill_audio_frame(frame, enc->channels, enc->sample_fmt,
- buf, buf_size, 1)) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
- exit_program(1);
- }
- }
-
- got_packet = 0;
- if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
- exit_program(1);
- }
-
- if (got_packet) {
- pkt.stream_index = ost->index;
- if (pkt.pts != AV_NOPTS_VALUE)
- pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
- if (pkt.duration > 0)
- pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
-
- write_frame(s, &pkt, ost);
-
- audio_size += pkt.size;
- }
-
- if (frame)
- ost->sync_opts += frame->nb_samples;
-
- return pkt.size;
-}
-
-static void do_audio_out(AVFormatContext *s, OutputStream *ost,
- InputStream *ist, AVFrame *decoded_frame)
-{
- uint8_t *buftmp;
- int64_t audio_buf_size;
-
- int size_out, frame_bytes, resample_changed;
- AVCodecContext *enc = ost->st->codec;
- AVCodecContext *dec = ist->st->codec;
- int osize = av_get_bytes_per_sample(enc->sample_fmt);
- int isize = av_get_bytes_per_sample(dec->sample_fmt);
- uint8_t *buf = decoded_frame->data[0];
- int size = decoded_frame->nb_samples * dec->channels * isize;
- int64_t allocated_for_size = size;
-
-need_realloc:
- audio_buf_size = (allocated_for_size + isize * dec->channels - 1) / (isize * dec->channels);
- audio_buf_size = (audio_buf_size * enc->sample_rate + dec->sample_rate) / dec->sample_rate;
- audio_buf_size = audio_buf_size * 2 + 10000; // safety factors for the deprecated resampling API
- audio_buf_size = FFMAX(audio_buf_size, enc->frame_size);
- audio_buf_size *= osize * enc->channels;
-
- if (audio_buf_size > INT_MAX) {
- av_log(NULL, AV_LOG_FATAL, "Buffer sizes too large\n");
- exit_program(1);
- }
-
- av_fast_malloc(&audio_buf, &allocated_audio_buf_size, audio_buf_size);
- if (!audio_buf) {
- av_log(NULL, AV_LOG_FATAL, "Out of memory in do_audio_out\n");
- exit_program(1);
- }
-
- if (enc->channels != dec->channels)
- ost->audio_resample = 1;
-
- resample_changed = ost->resample_sample_fmt != dec->sample_fmt ||
- ost->resample_channels != dec->channels ||
- ost->resample_sample_rate != dec->sample_rate;
-
- if ((ost->audio_resample && !ost->resample) || resample_changed) {
- if (resample_changed) {
- av_log(NULL, AV_LOG_INFO, "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d to rate:%d fmt:%s ch:%d\n",
- ist->file_index, ist->st->index,
- ost->resample_sample_rate, av_get_sample_fmt_name(ost->resample_sample_fmt), ost->resample_channels,
- dec->sample_rate, av_get_sample_fmt_name(dec->sample_fmt), dec->channels);
- ost->resample_sample_fmt = dec->sample_fmt;
- ost->resample_channels = dec->channels;
- ost->resample_sample_rate = dec->sample_rate;
- if (ost->resample)
- audio_resample_close(ost->resample);
- }
- /* if audio_sync_method is >1 the resampler is needed for audio drift compensation */
- if (audio_sync_method <= 1 &&
- ost->resample_sample_fmt == enc->sample_fmt &&
- ost->resample_channels == enc->channels &&
- ost->resample_sample_rate == enc->sample_rate) {
- ost->resample = NULL;
- ost->audio_resample = 0;
- } else {
- if (dec->sample_fmt != AV_SAMPLE_FMT_S16)
- av_log(NULL, AV_LOG_WARNING, "Using s16 intermediate sample format for resampling\n");
- ost->resample = av_audio_resample_init(enc->channels, dec->channels,
- enc->sample_rate, dec->sample_rate,
- enc->sample_fmt, dec->sample_fmt,
- 16, 10, 0, 0.8);
- if (!ost->resample) {
- av_log(NULL, AV_LOG_FATAL, "Can not resample %d channels @ %d Hz to %d channels @ %d Hz\n",
- dec->channels, dec->sample_rate,
- enc->channels, enc->sample_rate);
- exit_program(1);
- }
- }
- }
-
-#define MAKE_SFMT_PAIR(a,b) ((a)+AV_SAMPLE_FMT_NB*(b))
- if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt &&
- MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt) != ost->reformat_pair) {
- if (ost->reformat_ctx)
- av_audio_convert_free(ost->reformat_ctx);
- ost->reformat_ctx = av_audio_convert_alloc(enc->sample_fmt, 1,
- dec->sample_fmt, 1, NULL, 0);
- if (!ost->reformat_ctx) {
- av_log(NULL, AV_LOG_FATAL, "Cannot convert %s sample format to %s sample format\n",
- av_get_sample_fmt_name(dec->sample_fmt),
- av_get_sample_fmt_name(enc->sample_fmt));
- exit_program(1);
- }
- ost->reformat_pair = MAKE_SFMT_PAIR(enc->sample_fmt,dec->sample_fmt);
- }
-
- if (audio_sync_method) {
- double delta = get_sync_ipts(ost) * enc->sample_rate - ost->sync_opts -
- av_fifo_size(ost->fifo) / (enc->channels * osize);
- int idelta = delta * dec->sample_rate / enc->sample_rate;
- int byte_delta = idelta * isize * dec->channels;
-
- // FIXME resample delay
- if (fabs(delta) > 50) {
- if (ist->is_start || fabs(delta) > audio_drift_threshold*enc->sample_rate) {
- if (byte_delta < 0) {
- byte_delta = FFMAX(byte_delta, -size);
- size += byte_delta;
- buf -= byte_delta;
- av_log(NULL, AV_LOG_VERBOSE, "discarding %d audio samples\n",
- -byte_delta / (isize * dec->channels));
- if (!size)
- return;
- ist->is_start = 0;
- } else {
- static uint8_t *input_tmp = NULL;
- input_tmp = av_realloc(input_tmp, byte_delta + size);
-
- if (byte_delta > allocated_for_size - size) {
- allocated_for_size = byte_delta + (int64_t)size;
- goto need_realloc;
- }
- ist->is_start = 0;
-
- generate_silence(input_tmp, dec->sample_fmt, byte_delta);
- memcpy(input_tmp + byte_delta, buf, size);
- buf = input_tmp;
- size += byte_delta;
- av_log(NULL, AV_LOG_VERBOSE, "adding %d audio samples of silence\n", idelta);
- }
- } else if (audio_sync_method > 1) {
- int comp = av_clip(delta, -audio_sync_method, audio_sync_method);
- av_assert0(ost->audio_resample);
- av_log(NULL, AV_LOG_VERBOSE, "compensating audio timestamp drift:%f compensation:%d in:%d\n",
- delta, comp, enc->sample_rate);
-// fprintf(stderr, "drift:%f len:%d opts:%"PRId64" ipts:%"PRId64" fifo:%d\n", delta, -1, ost->sync_opts, (int64_t)(get_sync_ipts(ost) * enc->sample_rate), av_fifo_size(ost->fifo)/(ost->st->codec->channels * 2));
- av_resample_compensate(*(struct AVResampleContext**)ost->resample, comp, enc->sample_rate);
- }
- }
- } else
- ost->sync_opts = lrintf(get_sync_ipts(ost) * enc->sample_rate) -
- av_fifo_size(ost->fifo) / (enc->channels * osize); // FIXME wrong
-
- if (ost->audio_resample) {
- buftmp = audio_buf;
- size_out = audio_resample(ost->resample,
- (short *)buftmp, (short *)buf,
- size / (dec->channels * isize));
- size_out = size_out * enc->channels * osize;
- } else {
- buftmp = buf;
- size_out = size;
- }
-
- if (!ost->audio_resample && dec->sample_fmt != enc->sample_fmt) {
- const void *ibuf[6] = { buftmp };
- void *obuf[6] = { audio_buf };
- int istride[6] = { isize };
- int ostride[6] = { osize };
- int len = size_out / istride[0];
- if (av_audio_convert(ost->reformat_ctx, obuf, ostride, ibuf, istride, len) < 0) {
- printf("av_audio_convert() failed\n");
- if (exit_on_error)
- exit_program(1);
- return;
- }
- buftmp = audio_buf;
- size_out = len * osize;
- }
-
- /* now encode as many frames as possible */
- if (!(enc->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) {
- /* output resampled raw samples */
- if (av_fifo_realloc2(ost->fifo, av_fifo_size(ost->fifo) + size_out) < 0) {
- av_log(NULL, AV_LOG_FATAL, "av_fifo_realloc2() failed\n");
- exit_program(1);
- }
- av_fifo_generic_write(ost->fifo, buftmp, size_out, NULL);
-
- frame_bytes = enc->frame_size * osize * enc->channels;
-
- while (av_fifo_size(ost->fifo) >= frame_bytes) {
- av_fifo_generic_read(ost->fifo, audio_buf, frame_bytes, NULL);
- encode_audio_frame(s, ost, audio_buf, frame_bytes);
- }
- } else {
- encode_audio_frame(s, ost, buftmp, size_out);
- }
-}
-
-static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
-{
- AVCodecContext *dec;
- AVPicture *picture2;
- AVPicture picture_tmp;
- uint8_t *buf = 0;
-
- dec = ist->st->codec;
-
- /* deinterlace : must be done before any resize */
- if (do_deinterlace) {
- int size;
-
- /* create temporary picture */
- size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
- buf = av_malloc(size);
- if (!buf)
- return;
-
- picture2 = &picture_tmp;
- avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
-
- if (avpicture_deinterlace(picture2, picture,
- dec->pix_fmt, dec->width, dec->height) < 0) {
- /* if error, do not deinterlace */
- av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
- av_free(buf);
- buf = NULL;
- picture2 = picture;
- }
- } else {
- picture2 = picture;
- }
-
- if (picture != picture2)
- *picture = *picture2;
- *bufp = buf;
-}
-
-static void do_subtitle_out(AVFormatContext *s,
- OutputStream *ost,
- InputStream *ist,
- AVSubtitle *sub,
- int64_t pts)
-{
- static uint8_t *subtitle_out = NULL;
- int subtitle_out_max_size = 1024 * 1024;
- int subtitle_out_size, nb, i;
- AVCodecContext *enc;
- AVPacket pkt;
-
- if (pts == AV_NOPTS_VALUE) {
- av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
- if (exit_on_error)
- exit_program(1);
- return;
- }
-
- enc = ost->st->codec;
-
- if (!subtitle_out) {
- subtitle_out = av_malloc(subtitle_out_max_size);
- }
-
- /* Note: DVB subtitle need one packet to draw them and one other
- packet to clear them */
- /* XXX: signal it in the codec context ? */
- if (enc->codec_id == CODEC_ID_DVB_SUBTITLE)
- nb = 2;
- else
- nb = 1;
-
- for (i = 0; i < nb; i++) {
- sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
- // start_display_time is required to be 0
- sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
- sub->end_display_time -= sub->start_display_time;
- sub->start_display_time = 0;
- subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out,
- subtitle_out_max_size, sub);
- if (subtitle_out_size < 0) {
- av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n");
- exit_program(1);
- }
-
- av_init_packet(&pkt);
- pkt.stream_index = ost->index;
- pkt.data = subtitle_out;
- pkt.size = subtitle_out_size;
- pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
- if (enc->codec_id == CODEC_ID_DVB_SUBTITLE) {
- /* XXX: the pts correction is handled here. Maybe handling
- it in the codec would be better */
- if (i == 0)
- pkt.pts += 90 * sub->start_display_time;
- else
- pkt.pts += 90 * sub->end_display_time;
- }
- write_frame(s, &pkt, ost);
- }
-}
-
-static int bit_buffer_size = 1024 * 256;
-static uint8_t *bit_buffer = NULL;
-
-#if !CONFIG_AVFILTER
-static void do_video_resample(OutputStream *ost,
- InputStream *ist,
- AVFrame *in_picture,
- AVFrame **out_picture)
-{
- int resample_changed = 0;
- AVCodecContext *dec = ist->st->codec;
- AVCodecContext *enc = ost->st->codec;
- *out_picture = in_picture;
-
- resample_changed = ost->resample_width != in_picture->width ||
- ost->resample_height != in_picture->height ||
- ost->resample_pix_fmt != in_picture->format;
-
- if (resample_changed) {
- av_log(NULL, AV_LOG_INFO,
- "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s / frm size:%dx%d fmt:%s\n",
- ist->file_index, ist->st->index,
- ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
- dec->width , dec->height , av_get_pix_fmt_name(dec->pix_fmt),
- in_picture->width, in_picture->height, av_get_pix_fmt_name(in_picture->format));
- ost->resample_width = in_picture->width;
- ost->resample_height = in_picture->height;
- ost->resample_pix_fmt = in_picture->format;
- }
-
- ost->video_resample = dec->width != enc->width ||
- dec->height != enc->height ||
- dec->pix_fmt != enc->pix_fmt;
-
-
- if (ost->video_resample) {
- *out_picture = &ost->resample_frame;
- if (!ost->img_resample_ctx || resample_changed) {
- /* initialize the destination picture */
- if (!ost->resample_frame.data[0]) {
- avcodec_get_frame_defaults(&ost->resample_frame);
- if (avpicture_alloc((AVPicture *)&ost->resample_frame, enc->pix_fmt,
- enc->width, enc->height)) {
- fprintf(stderr, "Cannot allocate temp picture, check pix fmt\n");
- exit_program(1);
- }
- }
- /* initialize a new scaler context */
- sws_freeContext(ost->img_resample_ctx);
- ost->img_resample_ctx = sws_getContext(dec->width, dec->height, dec->pix_fmt,
- enc->width, enc->height, enc->pix_fmt,
- ost->sws_flags, NULL, NULL, NULL);
- if (ost->img_resample_ctx == NULL) {
- av_log(NULL, AV_LOG_FATAL, "Cannot get resampling context\n");
- exit_program(1);
- }
- }
- sws_scale(ost->img_resample_ctx, in_picture->data, in_picture->linesize,
- 0, ost->resample_height, (*out_picture)->data, (*out_picture)->linesize);
- }
- if (resample_changed) {
- ost->resample_width = in_picture->width;
- ost->resample_height = in_picture->height;
- ost->resample_pix_fmt = in_picture->format;
- }
-}
-#endif
-
-
-static void do_video_out(AVFormatContext *s,
- OutputStream *ost,
- InputStream *ist,
- AVFrame *in_picture,
- int *frame_size, float quality)
-{
- int nb_frames, i, ret, format_video_sync;
- AVFrame *final_picture;
- AVCodecContext *enc;
- double sync_ipts;
-
- enc = ost->st->codec;
-
- sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base);
-
- /* by default, we output a single frame */
- nb_frames = 1;
-
- *frame_size = 0;
-
- format_video_sync = video_sync_method;
- if (format_video_sync == VSYNC_AUTO)
- format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
- (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
-
- if (format_video_sync != VSYNC_PASSTHROUGH) {
- double vdelta = sync_ipts - ost->sync_opts;
- // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
- if (vdelta < -1.1)
- nb_frames = 0;
- else if (format_video_sync == VSYNC_VFR) {
- if (vdelta <= -0.6) {
- nb_frames = 0;
- } else if (vdelta > 0.6)
- ost->sync_opts = lrintf(sync_ipts);
- } else if (vdelta > 1.1)
- nb_frames = lrintf(vdelta);
-//fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames);
- if (nb_frames == 0) {
- ++nb_frames_drop;
- av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n");
- } else if (nb_frames > 1) {
- nb_frames_dup += nb_frames - 1;
- av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
- }
- } else
- ost->sync_opts = lrintf(sync_ipts);
-
- nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
- if (nb_frames <= 0)
- return;
-
-#if !CONFIG_AVFILTER
- do_video_resample(ost, ist, in_picture, &final_picture);
-#else
- final_picture = in_picture;
-#endif
-
- /* duplicates frame if needed */
- for (i = 0; i < nb_frames; i++) {
- AVPacket pkt;
- av_init_packet(&pkt);
- pkt.stream_index = ost->index;
-
- if (s->oformat->flags & AVFMT_RAWPICTURE &&
- enc->codec->id == CODEC_ID_RAWVIDEO) {
- /* raw pictures are written as AVPicture structure to
- avoid any copies. We support temporarily the older
- method. */
- enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
- enc->coded_frame->top_field_first = in_picture->top_field_first;
- pkt.data = (uint8_t *)final_picture;
- pkt.size = sizeof(AVPicture);
- pkt.pts = av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base);
- pkt.flags |= AV_PKT_FLAG_KEY;
-
- write_frame(s, &pkt, ost);
- } else {
- AVFrame big_picture;
-
- big_picture = *final_picture;
- /* better than nothing: use input picture interlaced
- settings */
- big_picture.interlaced_frame = in_picture->interlaced_frame;
- if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) {
- if (ost->top_field_first == -1)
- big_picture.top_field_first = in_picture->top_field_first;
- else
- big_picture.top_field_first = !!ost->top_field_first;
- }
-
- /* handles same_quant here. This is not correct because it may
- not be a global option */
- big_picture.quality = quality;
- if (!enc->me_threshold)
- big_picture.pict_type = 0;
-// big_picture.pts = AV_NOPTS_VALUE;
- big_picture.pts = ost->sync_opts;
-// big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den);
-// av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts);
- if (ost->forced_kf_index < ost->forced_kf_count &&
- big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
- big_picture.pict_type = AV_PICTURE_TYPE_I;
- ost->forced_kf_index++;
- }
- ret = avcodec_encode_video(enc,
- bit_buffer, bit_buffer_size,
- &big_picture);
- if (ret < 0) {
- av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
- exit_program(1);
- }
-
- if (ret > 0) {
- pkt.data = bit_buffer;
- pkt.size = ret;
- if (enc->coded_frame->pts != AV_NOPTS_VALUE)
- pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
-/*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n",
- pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1,
- pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/
-
- if (enc->coded_frame->key_frame)
- pkt.flags |= AV_PKT_FLAG_KEY;
- write_frame(s, &pkt, ost);
- *frame_size = ret;
- video_size += ret;
- // fprintf(stderr,"\nFrame: %3d size: %5d type: %d",
- // enc->frame_number-1, ret, enc->pict_type);
- /* if two pass, output log */
- if (ost->logfile && enc->stats_out) {
- fprintf(ost->logfile, "%s", enc->stats_out);
- }
- }
- }
- ost->sync_opts++;
- /*
- * For video, number of frames in == number of packets out.
- * But there may be reordering, so we can't throw away frames on encoder
- * flush, we need to limit them here, before they go into encoder.
- */
- ost->frame_number++;
- }
-}
-
-static double psnr(double d)
-{
- return -10.0 * log(d) / log(10.0);
-}
-
-static void do_video_stats(AVFormatContext *os, OutputStream *ost,
- int frame_size)
-{
- AVCodecContext *enc;
- int frame_number;
- double ti1, bitrate, avg_bitrate;
-
- /* this is executed just the first time do_video_stats is called */
- if (!vstats_file) {
- vstats_file = fopen(vstats_filename, "w");
- if (!vstats_file) {
- perror("fopen");
- exit_program(1);
- }
- }
-
- enc = ost->st->codec;
- if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- frame_number = ost->frame_number;
- fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
- if (enc->flags&CODEC_FLAG_PSNR)
- fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
-
- fprintf(vstats_file,"f_size= %6d ", frame_size);
- /* compute pts value */
- ti1 = ost->sync_opts * av_q2d(enc->time_base);
- if (ti1 < 0.01)
- ti1 = 0.01;
-
- bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0;
- avg_bitrate = (double)(video_size * 8) / ti1 / 1000.0;
- fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
- (double)video_size / 1024, ti1, bitrate, avg_bitrate);
- fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type));
- }
-}
-
-static void print_report(OutputFile *output_files,
- OutputStream *ost_table, int nb_ostreams,
- int is_last_report, int64_t timer_start)
-{
- char buf[1024];
- OutputStream *ost;
- AVFormatContext *oc;
- int64_t total_size;
- AVCodecContext *enc;
- int frame_number, vid, i;
- double bitrate;
- int64_t pts = INT64_MAX;
- static int64_t last_time = -1;
- static int qp_histogram[52];
- int hours, mins, secs, us;
-
- if (!print_stats && !is_last_report)
- return;
-
- if (!is_last_report) {
- int64_t cur_time;
- /* display the report every 0.5 seconds */
- cur_time = av_gettime();
- if (last_time == -1) {
- last_time = cur_time;
- return;
- }
- if ((cur_time - last_time) < 500000)
- return;
- last_time = cur_time;
- }
-
-
- oc = output_files[0].ctx;
-
- total_size = avio_size(oc->pb);
- if (total_size < 0) // FIXME improve avio_size() so it works with non seekable output too
- total_size = avio_tell(oc->pb);
-
- buf[0] = '\0';
- vid = 0;
- for (i = 0; i < nb_ostreams; i++) {
- float q = -1;
- ost = &ost_table[i];
- enc = ost->st->codec;
- if (!ost->stream_copy && enc->coded_frame)
- q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
- if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
- }
- if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
- float t = (av_gettime() - timer_start) / 1000000.0;
-
- frame_number = ost->frame_number;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
- frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
- if (is_last_report)
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
- if (qp_hist) {
- int j;
- int qp = lrintf(q);
- if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram))
- qp_histogram[qp]++;
- for (j = 0; j < 32; j++)
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log(qp_histogram[j] + 1) / log(2)));
- }
- if (enc->flags&CODEC_FLAG_PSNR) {
- int j;
- double error, error_sum = 0;
- double scale, scale_sum = 0;
- char type[3] = { 'Y','U','V' };
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
- for (j = 0; j < 3; j++) {
- if (is_last_report) {
- error = enc->error[j];
- scale = enc->width * enc->height * 255.0 * 255.0 * frame_number;
- } else {
- error = enc->coded_frame->error[j];
- scale = enc->width * enc->height * 255.0 * 255.0;
- }
- if (j)
- scale /= 4;
- error_sum += error;
- scale_sum += scale;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
- }
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
- }
- vid = 1;
- }
- /* compute min output value */
- pts = FFMIN(pts, av_rescale_q(ost->st->pts.val,
- ost->st->time_base, AV_TIME_BASE_Q));
- }
-
- secs = pts / AV_TIME_BASE;
- us = pts % AV_TIME_BASE;
- mins = secs / 60;
- secs %= 60;
- hours = mins / 60;
- mins %= 60;
-
- bitrate = pts ? total_size * 8 / (pts / 1000.0) : 0;
-
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "size=%8.0fkB time=", total_size / 1024.0);
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "%02d:%02d:%02d.%02d ", hours, mins, secs,
- (100 * us) / AV_TIME_BASE);
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "bitrate=%6.1fkbits/s", bitrate);
-
- if (nb_frames_dup || nb_frames_drop)
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
- nb_frames_dup, nb_frames_drop);
-
- av_log(NULL, AV_LOG_INFO, "%s \r", buf);
-
- fflush(stderr);
-
- if (is_last_report) {
- int64_t raw= audio_size + video_size + extra_size;
- av_log(NULL, AV_LOG_INFO, "\n");
- av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB global headers:%1.0fkB muxing overhead %f%%\n",
- video_size / 1024.0,
- audio_size / 1024.0,
- extra_size / 1024.0,
- 100.0 * (total_size - raw) / raw
- );
- }
-}
-
-static void flush_encoders(OutputStream *ost_table, int nb_ostreams)
-{
- int i, ret;
-
- for (i = 0; i < nb_ostreams; i++) {
- OutputStream *ost = &ost_table[i];
- AVCodecContext *enc = ost->st->codec;
- AVFormatContext *os = output_files[ost->file_index].ctx;
- int stop_encoding = 0;
-
- if (!ost->encoding_needed)
- continue;
-
- if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1)
- continue;
- if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == CODEC_ID_RAWVIDEO)
- continue;
-
- for (;;) {
- AVPacket pkt;
- int fifo_bytes;
- av_init_packet(&pkt);
- pkt.data = NULL;
- pkt.size = 0;
-
- switch (ost->st->codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- fifo_bytes = av_fifo_size(ost->fifo);
- if (fifo_bytes > 0) {
- /* encode any samples remaining in fifo */
- int frame_bytes = fifo_bytes;
-
- av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
-
- /* pad last frame with silence if needed */
- if (!(enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME)) {
- frame_bytes = enc->frame_size * enc->channels *
- av_get_bytes_per_sample(enc->sample_fmt);
- if (allocated_audio_buf_size < frame_bytes)
- exit_program(1);
- generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
- }
- encode_audio_frame(os, ost, audio_buf, frame_bytes);
- } else {
- /* flush encoder with NULL frames until it is done
- returning packets */
- if (encode_audio_frame(os, ost, NULL, 0) == 0) {
- stop_encoding = 1;
- break;
- }
- }
- break;
- case AVMEDIA_TYPE_VIDEO:
- ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
- if (ret < 0) {
- av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
- exit_program(1);
- }
- video_size += ret;
- if (enc->coded_frame && enc->coded_frame->key_frame)
- pkt.flags |= AV_PKT_FLAG_KEY;
- if (ost->logfile && enc->stats_out) {
- fprintf(ost->logfile, "%s", enc->stats_out);
- }
- if (ret <= 0) {
- stop_encoding = 1;
- break;
- }
- pkt.stream_index = ost->index;
- pkt.data = bit_buffer;
- pkt.size = ret;
- if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
- pkt.pts = av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
- write_frame(os, &pkt, ost);
- break;
- default:
- stop_encoding = 1;
- }
- if (stop_encoding)
- break;
- }
- }
-}
-
-/*
- * Check whether a packet from ist should be written into ost at this time
- */
-static int check_output_constraints(InputStream *ist, OutputStream *ost)
-{
- OutputFile *of = &output_files[ost->file_index];
- int ist_index = ist - input_streams;
-
- if (ost->source_index != ist_index)
- return 0;
-
- if (of->start_time && ist->pts < of->start_time)
- return 0;
-
- if (of->recording_time != INT64_MAX &&
- av_compare_ts(ist->pts, AV_TIME_BASE_Q, of->recording_time + of->start_time,
- (AVRational){ 1, 1000000 }) >= 0) {
- ost->is_past_recording_time = 1;
- return 0;
- }
-
- return 1;
-}
-
-static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt)
-{
- OutputFile *of = &output_files[ost->file_index];
- int64_t ost_tb_start_time = av_rescale_q(of->start_time, AV_TIME_BASE_Q, ost->st->time_base);
- AVPicture pict;
- AVPacket opkt;
-
- av_init_packet(&opkt);
-
- if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) &&
- !ost->copy_initial_nonkeyframes)
- return;
-
- /* force the input stream PTS */
- if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
- audio_size += pkt->size;
- else if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- video_size += pkt->size;
- ost->sync_opts++;
- }
-
- opkt.stream_index = ost->index;
- if (pkt->pts != AV_NOPTS_VALUE)
- opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time;
- else
- opkt.pts = AV_NOPTS_VALUE;
-
- if (pkt->dts == AV_NOPTS_VALUE)
- opkt.dts = av_rescale_q(ist->pts, AV_TIME_BASE_Q, ost->st->time_base);
- else
- opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
- opkt.dts -= ost_tb_start_time;
-
- opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
- opkt.flags = pkt->flags;
-
- // FIXME remove the following 2 lines they shall be replaced by the bitstream filters
- if ( ost->st->codec->codec_id != CODEC_ID_H264
- && ost->st->codec->codec_id != CODEC_ID_MPEG1VIDEO
- && ost->st->codec->codec_id != CODEC_ID_MPEG2VIDEO
- ) {
- if (av_parser_change(ist->st->parser, ost->st->codec, &opkt.data, &opkt.size, pkt->data, pkt->size, pkt->flags & AV_PKT_FLAG_KEY))
- opkt.destruct = av_destruct_packet;
- } else {
- opkt.data = pkt->data;
- opkt.size = pkt->size;
- }
- if (of->ctx->oformat->flags & AVFMT_RAWPICTURE) {
- /* store AVPicture in AVPacket, as expected by the output format */
- avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
- opkt.data = (uint8_t *)&pict;
- opkt.size = sizeof(AVPicture);
- opkt.flags |= AV_PKT_FLAG_KEY;
- }
-
- write_frame(of->ctx, &opkt, ost);
- ost->st->codec->frame_number++;
- av_free_packet(&opkt);
-}
-
-static void rate_emu_sleep(InputStream *ist)
-{
- if (input_files[ist->file_index].rate_emu) {
- int64_t pts = av_rescale(ist->pts, 1000000, AV_TIME_BASE);
- int64_t now = av_gettime() - ist->start;
- if (pts > now)
- usleep(pts - now);
- }
-}
-
-static int transcode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
-{
- AVFrame *decoded_frame;
- AVCodecContext *avctx = ist->st->codec;
- int bps = av_get_bytes_per_sample(ist->st->codec->sample_fmt);
- int i, ret;
-
- if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
- return AVERROR(ENOMEM);
- else
- avcodec_get_frame_defaults(ist->decoded_frame);
- decoded_frame = ist->decoded_frame;
-
- ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
- if (ret < 0) {
- return ret;
- }
-
- if (!*got_output) {
- /* no audio frame */
- return ret;
- }
-
- /* if the decoder provides a pts, use it instead of the last packet pts.
- the decoder could be delaying output by a packet or more. */
- if (decoded_frame->pts != AV_NOPTS_VALUE)
- ist->next_pts = decoded_frame->pts;
-
- /* increment next_pts to use for the case where the input stream does not
- have timestamps or there are multiple frames in the packet */
- ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
- avctx->sample_rate;
-
- // preprocess audio (volume)
- if (audio_volume != 256) {
- int decoded_data_size = decoded_frame->nb_samples * avctx->channels * bps;
- void *samples = decoded_frame->data[0];
- switch (avctx->sample_fmt) {
- case AV_SAMPLE_FMT_U8:
- {
- uint8_t *volp = samples;
- for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
- int v = (((*volp - 128) * audio_volume + 128) >> 8) + 128;
- *volp++ = av_clip_uint8(v);
- }
- break;
- }
- case AV_SAMPLE_FMT_S16:
- {
- int16_t *volp = samples;
- for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
- int v = ((*volp) * audio_volume + 128) >> 8;
- *volp++ = av_clip_int16(v);
- }
- break;
- }
- case AV_SAMPLE_FMT_S32:
- {
- int32_t *volp = samples;
- for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
- int64_t v = (((int64_t)*volp * audio_volume + 128) >> 8);
- *volp++ = av_clipl_int32(v);
- }
- break;
- }
- case AV_SAMPLE_FMT_FLT:
- {
- float *volp = samples;
- float scale = audio_volume / 256.f;
- for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
- *volp++ *= scale;
- }
- break;
- }
- case AV_SAMPLE_FMT_DBL:
- {
- double *volp = samples;
- double scale = audio_volume / 256.;
- for (i = 0; i < (decoded_data_size / sizeof(*volp)); i++) {
- *volp++ *= scale;
- }
- break;
- }
- default:
- av_log(NULL, AV_LOG_FATAL,
- "Audio volume adjustment on sample format %s is not supported.\n",
- av_get_sample_fmt_name(ist->st->codec->sample_fmt));
- exit_program(1);
- }
- }
-
- rate_emu_sleep(ist);
-
- for (i = 0; i < nb_output_streams; i++) {
- OutputStream *ost = &output_streams[i];
-
- if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
- continue;
- do_audio_out(output_files[ost->file_index].ctx, ost, ist, decoded_frame);
- }
-
- return ret;
-}
-
-static int transcode_video(InputStream *ist, AVPacket *pkt, int *got_output, int64_t *pkt_pts)
-{
- AVFrame *decoded_frame, *filtered_frame = NULL;
- void *buffer_to_free = NULL;
- int i, ret = 0;
- float quality;
-#if CONFIG_AVFILTER
- int frame_available = 1;
-#endif
-
- if (!ist->decoded_frame && !(ist->decoded_frame = avcodec_alloc_frame()))
- return AVERROR(ENOMEM);
- else
- avcodec_get_frame_defaults(ist->decoded_frame);
- decoded_frame = ist->decoded_frame;
- pkt->pts = *pkt_pts;
- pkt->dts = ist->pts;
- *pkt_pts = AV_NOPTS_VALUE;
-
- ret = avcodec_decode_video2(ist->st->codec,
- decoded_frame, got_output, pkt);
- if (ret < 0)
- return ret;
-
- quality = same_quant ? decoded_frame->quality : 0;
- if (!*got_output) {
- /* no picture yet */
- return ret;
- }
- ist->next_pts = ist->pts = decoded_frame->best_effort_timestamp;
- if (pkt->duration)
- ist->next_pts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
- else if (ist->st->codec->time_base.num != 0) {
- int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
- ist->st->codec->ticks_per_frame;
- ist->next_pts += ((int64_t)AV_TIME_BASE *
- ist->st->codec->time_base.num * ticks) /
- ist->st->codec->time_base.den;
- }
- pkt->size = 0;
- pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
-
- rate_emu_sleep(ist);
-
- for (i = 0; i < nb_output_streams; i++) {
- OutputStream *ost = &output_streams[i];
- int frame_size, resample_changed;
-
- if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
- continue;
-
-#if CONFIG_AVFILTER
- resample_changed = ost->resample_width != decoded_frame->width ||
- ost->resample_height != decoded_frame->height ||
- ost->resample_pix_fmt != decoded_frame->format;
- if (resample_changed) {
- av_log(NULL, AV_LOG_INFO,
- "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n",
- ist->file_index, ist->st->index,
- ost->resample_width, ost->resample_height, av_get_pix_fmt_name(ost->resample_pix_fmt),
- decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
-
- avfilter_graph_free(&ost->graph);
- if (configure_video_filters(ist, ost)) {
- av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
- exit_program(1);
- }
-
- ost->resample_width = decoded_frame->width;
- ost->resample_height = decoded_frame->height;
- ost->resample_pix_fmt = decoded_frame->format;
- }
-
- if (!decoded_frame->sample_aspect_ratio.num)
- decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio;
- decoded_frame->pts = ist->pts;
- if (ist->st->codec->codec->capabilities & CODEC_CAP_DR1) {
- FrameBuffer *buf = decoded_frame->opaque;
- AVFilterBufferRef *fb = avfilter_get_video_buffer_ref_from_arrays(
- decoded_frame->data, decoded_frame->linesize,
- AV_PERM_READ | AV_PERM_PRESERVE,
- ist->st->codec->width, ist->st->codec->height,
- ist->st->codec->pix_fmt);
-
- avfilter_copy_frame_props(fb, decoded_frame);
- fb->pts = ist->pts;
- fb->buf->priv = buf;
- fb->buf->free = filter_release_buffer;
-
- buf->refcount++;
- av_buffersrc_buffer(ost->input_video_filter, fb);
- } else
- av_vsrc_buffer_add_frame(ost->input_video_filter, decoded_frame, AV_VSRC_BUF_FLAG_OVERWRITE);
-
- if (!ist->filtered_frame && !(ist->filtered_frame = avcodec_alloc_frame())) {
- av_free(buffer_to_free);
- return AVERROR(ENOMEM);
- } else
- avcodec_get_frame_defaults(ist->filtered_frame);
- filtered_frame = ist->filtered_frame;
-
- frame_available = avfilter_poll_frame(ost->output_video_filter->inputs[0]);
- while (frame_available) {
- if (ost->output_video_filter) {
- AVRational ist_pts_tb = ost->output_video_filter->inputs[0]->time_base;
- if (av_buffersink_get_buffer_ref(ost->output_video_filter, &ost->picref, 0) < 0)
- goto cont;
- if (ost->picref) {
- avfilter_fill_frame_from_video_buffer_ref(filtered_frame, ost->picref);
- ist->pts = av_rescale_q(ost->picref->pts, ist_pts_tb, AV_TIME_BASE_Q);
- }
- }
- if (ost->picref->video && !ost->frame_aspect_ratio)
- ost->st->codec->sample_aspect_ratio = ost->picref->video->sample_aspect_ratio;
-#else
- filtered_frame = decoded_frame;
-#endif
-
- do_video_out(output_files[ost->file_index].ctx, ost, ist, filtered_frame, &frame_size,
- same_quant ? quality : ost->st->codec->global_quality);
- if (vstats_filename && frame_size)
- do_video_stats(output_files[ost->file_index].ctx, ost, frame_size);
-#if CONFIG_AVFILTER
- cont:
- frame_available = ost->output_video_filter && avfilter_poll_frame(ost->output_video_filter->inputs[0]);
- if (ost->picref)
- avfilter_unref_buffer(ost->picref);
- }
-#endif
- }
-
- av_free(buffer_to_free);
- return ret;
-}
-
-static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
-{
- AVSubtitle subtitle;
- int i, ret = avcodec_decode_subtitle2(ist->st->codec,
- &subtitle, got_output, pkt);
- if (ret < 0)
- return ret;
- if (!*got_output)
- return ret;
-
- rate_emu_sleep(ist);
-
- for (i = 0; i < nb_output_streams; i++) {
- OutputStream *ost = &output_streams[i];
-
- if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
- continue;
-
- do_subtitle_out(output_files[ost->file_index].ctx, ost, ist, &subtitle, pkt->pts);
- }
-
- avsubtitle_free(&subtitle);
- return ret;
-}
-
-/* pkt = NULL means EOF (needed to flush decoder buffers) */
-static int output_packet(InputStream *ist,
- OutputStream *ost_table, int nb_ostreams,
- const AVPacket *pkt)
-{
- int i;
- int got_output;
- int64_t pkt_pts = AV_NOPTS_VALUE;
- AVPacket avpkt;
-
- if (ist->next_pts == AV_NOPTS_VALUE)
- ist->next_pts = ist->pts;
-
- if (pkt == NULL) {
- /* EOF handling */
- av_init_packet(&avpkt);
- avpkt.data = NULL;
- avpkt.size = 0;
- goto handle_eof;
- } else {
- avpkt = *pkt;
- }
-
- if (pkt->dts != AV_NOPTS_VALUE)
- ist->next_pts = ist->pts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
- if (pkt->pts != AV_NOPTS_VALUE)
- pkt_pts = av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
-
- // while we have more to decode or while the decoder did output something on EOF
- while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
- int ret = 0;
- handle_eof:
-
- ist->pts = ist->next_pts;
-
- if (avpkt.size && avpkt.size != pkt->size) {
- av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING,
- "Multiple frames in a packet from stream %d\n", pkt->stream_index);
- ist->showed_multi_packet_warning = 1;
- }
-
- switch (ist->st->codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- ret = transcode_audio (ist, &avpkt, &got_output);
- break;
- case AVMEDIA_TYPE_VIDEO:
- ret = transcode_video (ist, &avpkt, &got_output, &pkt_pts);
- break;
- case AVMEDIA_TYPE_SUBTITLE:
- ret = transcode_subtitles(ist, &avpkt, &got_output);
- break;
- default:
- return -1;
- }
-
- if (ret < 0)
- return ret;
- // touch data and size only if not EOF
- if (pkt) {
- avpkt.data += ret;
- avpkt.size -= ret;
- }
- if (!got_output) {
- continue;
- }
- }
-
- /* handle stream copy */
- if (!ist->decoding_needed) {
- rate_emu_sleep(ist);
- ist->pts = ist->next_pts;
- switch (ist->st->codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
- ist->st->codec->sample_rate;
- break;
- case AVMEDIA_TYPE_VIDEO:
- if (ist->st->codec->time_base.num != 0) {
- int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
- ist->next_pts += ((int64_t)AV_TIME_BASE *
- ist->st->codec->time_base.num * ticks) /
- ist->st->codec->time_base.den;
- }
- break;
- }
- }
- for (i = 0; pkt && i < nb_ostreams; i++) {
- OutputStream *ost = &ost_table[i];
-
- if (!check_output_constraints(ist, ost) || ost->encoding_needed)
- continue;
-
- do_streamcopy(ist, ost, pkt);
- }
-
- return 0;
-}
-
-static void print_sdp(OutputFile *output_files, int n)
-{
- char sdp[2048];
- int i;
- AVFormatContext **avc = av_malloc(sizeof(*avc) * n);
-
- if (!avc)
- exit_program(1);
- for (i = 0; i < n; i++)
- avc[i] = output_files[i].ctx;
-
- av_sdp_create(avc, n, sdp, sizeof(sdp));
- printf("SDP:\n%s\n", sdp);
- fflush(stdout);
- av_freep(&avc);
-}
-
-static int init_input_stream(int ist_index, OutputStream *output_streams, int nb_output_streams,
- char *error, int error_len)
-{
- int i;
- InputStream *ist = &input_streams[ist_index];
- if (ist->decoding_needed) {
- AVCodec *codec = ist->dec;
- if (!codec) {
- snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
- ist->st->codec->codec_id, ist->file_index, ist->st->index);
- return AVERROR(EINVAL);
- }
-
- if (codec->type == AVMEDIA_TYPE_VIDEO && codec->capabilities & CODEC_CAP_DR1) {
- ist->st->codec->get_buffer = codec_get_buffer;
- ist->st->codec->release_buffer = codec_release_buffer;
- ist->st->codec->opaque = ist;
- }
-
- if (!av_dict_get(ist->opts, "threads", NULL, 0))
- av_dict_set(&ist->opts, "threads", "auto", 0);
- if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) {
- snprintf(error, error_len, "Error while opening decoder for input stream #%d:%d",
- ist->file_index, ist->st->index);
- return AVERROR(EINVAL);
- }
- assert_codec_experimental(ist->st->codec, 0);
- assert_avoptions(ist->opts);
- }
-
- ist->pts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
- ist->next_pts = AV_NOPTS_VALUE;
- ist->is_start = 1;
-
- return 0;
-}
-
-static int transcode_init(OutputFile *output_files,
- int nb_output_files,
- InputFile *input_files,
- int nb_input_files)
-{
- int ret = 0, i, j, k;
- AVFormatContext *oc;
- AVCodecContext *codec, *icodec;
- OutputStream *ost;
- InputStream *ist;
- char error[1024];
- int want_sdp = 1;
-
- /* init framerate emulation */
- for (i = 0; i < nb_input_files; i++) {
- InputFile *ifile = &input_files[i];
- if (ifile->rate_emu)
- for (j = 0; j < ifile->nb_streams; j++)
- input_streams[j + ifile->ist_index].start = av_gettime();
- }
-
- /* output stream init */
- for (i = 0; i < nb_output_files; i++) {
- oc = output_files[i].ctx;
- if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
- av_dump_format(oc, i, oc->filename, 1);
- av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i);
- return AVERROR(EINVAL);
- }
- }
-
- /* for each output stream, we compute the right encoding parameters */
- for (i = 0; i < nb_output_streams; i++) {
- ost = &output_streams[i];
- oc = output_files[ost->file_index].ctx;
- ist = &input_streams[ost->source_index];
-
- if (ost->attachment_filename)
- continue;
-
- codec = ost->st->codec;
- icodec = ist->st->codec;
-
- ost->st->disposition = ist->st->disposition;
- codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
- codec->chroma_sample_location = icodec->chroma_sample_location;
-
- if (ost->stream_copy) {
- uint64_t extra_size = (uint64_t)icodec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE;
-
- if (extra_size > INT_MAX) {
- return AVERROR(EINVAL);
- }
-
- /* if stream_copy is selected, no need to decode or encode */
- codec->codec_id = icodec->codec_id;
- codec->codec_type = icodec->codec_type;
-
- if (!codec->codec_tag) {
- if (!oc->oformat->codec_tag ||
- av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
- av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
- codec->codec_tag = icodec->codec_tag;
- }
-
- codec->bit_rate = icodec->bit_rate;
- codec->rc_max_rate = icodec->rc_max_rate;
- codec->rc_buffer_size = icodec->rc_buffer_size;
- codec->field_order = icodec->field_order;
- codec->extradata = av_mallocz(extra_size);
- if (!codec->extradata) {
- return AVERROR(ENOMEM);
- }
- memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
-
- codec->extradata_size = icodec->extradata_size;
- if (!copy_tb) {
- codec->time_base = icodec->time_base;
- codec->time_base.num *= icodec->ticks_per_frame;
- av_reduce(&codec->time_base.num, &codec->time_base.den,
- codec->time_base.num, codec->time_base.den, INT_MAX);
- } else
- codec->time_base = ist->st->time_base;
-
- switch (codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- if (audio_volume != 256) {
- av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
- exit_program(1);
- }
- codec->channel_layout = icodec->channel_layout;
- codec->sample_rate = icodec->sample_rate;
- codec->channels = icodec->channels;
- codec->frame_size = icodec->frame_size;
- codec->audio_service_type = icodec->audio_service_type;
- codec->block_align = icodec->block_align;
- break;
- case AVMEDIA_TYPE_VIDEO:
- codec->pix_fmt = icodec->pix_fmt;
- codec->width = icodec->width;
- codec->height = icodec->height;
- codec->has_b_frames = icodec->has_b_frames;
- if (!codec->sample_aspect_ratio.num) {
- codec->sample_aspect_ratio =
- ost->st->sample_aspect_ratio =
- ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
- ist->st->codec->sample_aspect_ratio.num ?
- ist->st->codec->sample_aspect_ratio : (AVRational){0, 1};
- }
- break;
- case AVMEDIA_TYPE_SUBTITLE:
- codec->width = icodec->width;
- codec->height = icodec->height;
- break;
- case AVMEDIA_TYPE_DATA:
- case AVMEDIA_TYPE_ATTACHMENT:
- break;
- default:
- abort();
- }
- } else {
- if (!ost->enc)
- ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
-
- ist->decoding_needed = 1;
- ost->encoding_needed = 1;
-
- switch (codec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- ost->fifo = av_fifo_alloc(1024);
- if (!ost->fifo) {
- return AVERROR(ENOMEM);
- }
- ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
-
- if (!codec->sample_rate)
- codec->sample_rate = icodec->sample_rate;
- choose_sample_rate(ost->st, ost->enc);
- codec->time_base = (AVRational){ 1, codec->sample_rate };
-
- if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
- codec->sample_fmt = icodec->sample_fmt;
- choose_sample_fmt(ost->st, ost->enc);
-
- if (!codec->channels) {
- codec->channels = icodec->channels;
- codec->channel_layout = icodec->channel_layout;
- }
- if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
- codec->channel_layout = 0;
-
- ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
- icodec->request_channels = codec-> channels;
- ost->resample_sample_fmt = icodec->sample_fmt;
- ost->resample_sample_rate = icodec->sample_rate;
- ost->resample_channels = icodec->channels;
- break;
- case AVMEDIA_TYPE_VIDEO:
- if (codec->pix_fmt == PIX_FMT_NONE)
- codec->pix_fmt = icodec->pix_fmt;
- choose_pixel_fmt(ost->st, ost->enc);
-
- if (ost->st->codec->pix_fmt == PIX_FMT_NONE) {
- av_log(NULL, AV_LOG_FATAL, "Video pixel format is unknown, stream cannot be encoded\n");
- exit_program(1);
- }
-
- if (!codec->width || !codec->height) {
- codec->width = icodec->width;
- codec->height = icodec->height;
- }
-
- ost->video_resample = codec->width != icodec->width ||
- codec->height != icodec->height ||
- codec->pix_fmt != icodec->pix_fmt;
- if (ost->video_resample) {
- codec->bits_per_raw_sample= frame_bits_per_raw_sample;
- }
-
- ost->resample_height = icodec->height;
- ost->resample_width = icodec->width;
- ost->resample_pix_fmt = icodec->pix_fmt;
-
- if (!ost->frame_rate.num)
- ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational) { 25, 1 };
- if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
- int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
- ost->frame_rate = ost->enc->supported_framerates[idx];
- }
- codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
- if( av_q2d(codec->time_base) < 0.001 && video_sync_method
- && (video_sync_method==1 || (video_sync_method<0 && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
- av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
- "Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
- }
-
-#if CONFIG_AVFILTER
- if (configure_video_filters(ist, ost)) {
- av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n");
- exit(1);
- }
-#endif
- break;
- case AVMEDIA_TYPE_SUBTITLE:
- break;
- default:
- abort();
- break;
- }
- /* two pass mode */
- if (codec->codec_id != CODEC_ID_H264 &&
- (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
- char logfilename[1024];
- FILE *f;
-
- snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
- pass_logfilename_prefix ? pass_logfilename_prefix : DEFAULT_PASS_LOGFILENAME_PREFIX,
- i);
- if (codec->flags & CODEC_FLAG_PASS1) {
- f = fopen(logfilename, "wb");
- if (!f) {
- av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
- logfilename, strerror(errno));
- exit_program(1);
- }
- ost->logfile = f;
- } else {
- char *logbuffer;
- size_t logbuffer_size;
- if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
- logfilename);
- exit_program(1);
- }
- codec->stats_in = logbuffer;
- }
- }
- }
- if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
- /* maximum video buffer size is 6-bytes per pixel, plus DPX header size */
- int size = codec->width * codec->height;
- bit_buffer_size = FFMAX(bit_buffer_size, 6 * size + 1664);
- }
- }
-
- if (!bit_buffer)
- bit_buffer = av_malloc(bit_buffer_size);
- if (!bit_buffer) {
- av_log(NULL, AV_LOG_ERROR, "Cannot allocate %d bytes output buffer\n",
- bit_buffer_size);
- return AVERROR(ENOMEM);
- }
-
- /* open each encoder */
- for (i = 0; i < nb_output_streams; i++) {
- ost = &output_streams[i];
- if (ost->encoding_needed) {
- AVCodec *codec = ost->enc;
- AVCodecContext *dec = input_streams[ost->source_index].st->codec;
- if (!codec) {
- snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
- ost->st->codec->codec_id, ost->file_index, ost->index);
- ret = AVERROR(EINVAL);
- goto dump_format;
- }
- if (dec->subtitle_header) {
- ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
- if (!ost->st->codec->subtitle_header) {
- ret = AVERROR(ENOMEM);
- goto dump_format;
- }
- memcpy(ost->st->codec->subtitle_header, dec->subtitle_header, dec->subtitle_header_size);
- ost->st->codec->subtitle_header_size = dec->subtitle_header_size;
- }
- if (!av_dict_get(ost->opts, "threads", NULL, 0))
- av_dict_set(&ost->opts, "threads", "auto", 0);
- if (avcodec_open2(ost->st->codec, codec, &ost->opts) < 0) {
- snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height",
- ost->file_index, ost->index);
- ret = AVERROR(EINVAL);
- goto dump_format;
- }
- assert_codec_experimental(ost->st->codec, 1);
- assert_avoptions(ost->opts);
- if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
- av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
- "It takes bits/s as argument, not kbits/s\n");
- extra_size += ost->st->codec->extradata_size;
-
- if (ost->st->codec->me_threshold)
- input_streams[ost->source_index].st->codec->debug |= FF_DEBUG_MV;
- }
- }
-
- /* init input streams */
- for (i = 0; i < nb_input_streams; i++)
- if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0)
- goto dump_format;
-
- /* discard unused programs */
- for (i = 0; i < nb_input_files; i++) {
- InputFile *ifile = &input_files[i];
- for (j = 0; j < ifile->ctx->nb_programs; j++) {
- AVProgram *p = ifile->ctx->programs[j];
- int discard = AVDISCARD_ALL;
-
- for (k = 0; k < p->nb_stream_indexes; k++)
- if (!input_streams[ifile->ist_index + p->stream_index[k]].discard) {
- discard = AVDISCARD_DEFAULT;
- break;
- }
- p->discard = discard;
- }
- }
-
- /* open files and write file headers */
- for (i = 0; i < nb_output_files; i++) {
- oc = output_files[i].ctx;
- oc->interrupt_callback = int_cb;
- if (avformat_write_header(oc, &output_files[i].opts) < 0) {
- snprintf(error, sizeof(error), "Could not write header for output file #%d (incorrect codec parameters ?)", i);
- ret = AVERROR(EINVAL);
- goto dump_format;
- }
-// assert_avoptions(output_files[i].opts);
- if (strcmp(oc->oformat->name, "rtp")) {
- want_sdp = 0;
- }
- }
-
- dump_format:
- /* dump the file output parameters - cannot be done before in case
- of stream copy */
- for (i = 0; i < nb_output_files; i++) {
- av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
- }
-
- /* dump the stream mapping */
- av_log(NULL, AV_LOG_INFO, "Stream mapping:\n");
- for (i = 0; i < nb_output_streams; i++) {
- ost = &output_streams[i];
-
- if (ost->attachment_filename) {
- /* an attached file */
- av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n",
- ost->attachment_filename, ost->file_index, ost->index);
- continue;
- }
- av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d",
- input_streams[ost->source_index].file_index,
- input_streams[ost->source_index].st->index,
- ost->file_index,
- ost->index);
- if (ost->sync_ist != &input_streams[ost->source_index])
- av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]",
- ost->sync_ist->file_index,
- ost->sync_ist->st->index);
- if (ost->stream_copy)
- av_log(NULL, AV_LOG_INFO, " (copy)");
- else
- av_log(NULL, AV_LOG_INFO, " (%s -> %s)", input_streams[ost->source_index].dec ?
- input_streams[ost->source_index].dec->name : "?",
- ost->enc ? ost->enc->name : "?");
- av_log(NULL, AV_LOG_INFO, "\n");
- }
-
- if (ret) {
- av_log(NULL, AV_LOG_ERROR, "%s\n", error);
- return ret;
- }
-
- if (want_sdp) {
- print_sdp(output_files, nb_output_files);
- }
-
- return 0;
-}
-
-/*
- * The following code is the main loop of the file converter
- */
-static int transcode(OutputFile *output_files,
- int nb_output_files,
- InputFile *input_files,
- int nb_input_files)
-{
- int ret, i;
- AVFormatContext *is, *os;
- OutputStream *ost;
- InputStream *ist;
- uint8_t *no_packet;
- int no_packet_count = 0;
- int64_t timer_start;
- int key;
-
- if (!(no_packet = av_mallocz(nb_input_files)))
- exit_program(1);
-
- ret = transcode_init(output_files, nb_output_files, input_files, nb_input_files);
- if (ret < 0)
- goto fail;
-
- if (!using_stdin) {
- av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
- avio_set_interrupt_cb(decode_interrupt_cb);
- }
- term_init();
-
- timer_start = av_gettime();
-
- for (; received_sigterm == 0;) {
- int file_index, ist_index;
- AVPacket pkt;
- int64_t ipts_min;
- double opts_min;
-
- ipts_min = INT64_MAX;
- opts_min = 1e100;
- /* if 'q' pressed, exits */
- if (!using_stdin) {
- if (q_pressed)
- break;
- /* read_key() returns 0 on EOF */
- key = read_key();
- if (key == 'q')
- break;
- if (key == '+') av_log_set_level(av_log_get_level()+10);
- if (key == '-') av_log_set_level(av_log_get_level()-10);
- if (key == 's') qp_hist ^= 1;
- if (key == 'h'){
- if (do_hex_dump){
- do_hex_dump = do_pkt_dump = 0;
- } else if(do_pkt_dump){
- do_hex_dump = 1;
- } else
- do_pkt_dump = 1;
- av_log_set_level(AV_LOG_DEBUG);
- }
- if (key == 'd' || key == 'D'){
- int debug=0;
- if(key == 'D') {
- debug = input_streams[0].st->codec->debug<<1;
- if(!debug) debug = 1;
- while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
- debug += debug;
- }else
- scanf("%d", &debug);
- for(i=0;i<nb_input_streams;i++) {
- input_streams[i].st->codec->debug = debug;
- }
- for(i=0;i<nb_output_streams;i++) {
- ost = &output_streams[i];
- ost->st->codec->debug = debug;
- }
- if(debug) av_log_set_level(AV_LOG_DEBUG);
- fprintf(stderr,"debug=%d\n", debug);
- }
- if (key == '?'){
- fprintf(stderr, "key function\n"
- "? show this help\n"
- "+ increase verbosity\n"
- "- decrease verbosity\n"
- "D cycle through available debug modes\n"
- "h dump packets/hex press to cycle through the 3 states\n"
- "q quit\n"
- "s Show QP histogram\n"
- );
- }
- }
-
- /* select the stream that we must read now by looking at the
- smallest output pts */
- file_index = -1;
- for (i = 0; i < nb_output_streams; i++) {
- OutputFile *of;
- int64_t ipts;
- double opts;
- ost = &output_streams[i];
- of = &output_files[ost->file_index];
- os = output_files[ost->file_index].ctx;
- ist = &input_streams[ost->source_index];
- if (ost->is_past_recording_time || no_packet[ist->file_index] ||
- (os->pb && avio_tell(os->pb) >= of->limit_filesize))
- continue;
- opts = ost->st->pts.val * av_q2d(ost->st->time_base);
- ipts = ist->pts;
- if (!input_files[ist->file_index].eof_reached) {
- if (ipts < ipts_min) {
- ipts_min = ipts;
- if (input_sync)
- file_index = ist->file_index;
- }
- if (opts < opts_min) {
- opts_min = opts;
- if (!input_sync) file_index = ist->file_index;
- }
- }
- if (ost->frame_number >= ost->max_frames) {
- int j;
- for (j = 0; j < of->ctx->nb_streams; j++)
- output_streams[of->ost_index + j].is_past_recording_time = 1;
- continue;
- }
- }
- /* if none, if is finished */
- if (file_index < 0) {
- if (no_packet_count) {
- no_packet_count = 0;
- memset(no_packet, 0, nb_input_files);
- usleep(10000);
- continue;
- }
- break;
- }
-
- /* read a frame from it and output it in the fifo */
- is = input_files[file_index].ctx;
- ret = av_read_frame(is, &pkt);
- if (ret == AVERROR(EAGAIN)) {
- no_packet[file_index] = 1;
- no_packet_count++;
- continue;
- }
- if (ret < 0) {
- input_files[file_index].eof_reached = 1;
- if (opt_shortest)
- break;
- else
- continue;
- }
-
- no_packet_count = 0;
- memset(no_packet, 0, nb_input_files);
-
- if (do_pkt_dump) {
- av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump,
- is->streams[pkt.stream_index]);
- }
- /* the following test is needed in case new streams appear
- dynamically in stream : we ignore them */
- if (pkt.stream_index >= input_files[file_index].nb_streams)
- goto discard_packet;
- ist_index = input_files[file_index].ist_index + pkt.stream_index;
- ist = &input_streams[ist_index];
- if (ist->discard)
- goto discard_packet;
-
- if (pkt.dts != AV_NOPTS_VALUE)
- pkt.dts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
- if (pkt.pts != AV_NOPTS_VALUE)
- pkt.pts += av_rescale_q(input_files[ist->file_index].ts_offset, AV_TIME_BASE_Q, ist->st->time_base);
-
- if (pkt.pts != AV_NOPTS_VALUE)
- pkt.pts *= ist->ts_scale;
- if (pkt.dts != AV_NOPTS_VALUE)
- pkt.dts *= ist->ts_scale;
-
- //fprintf(stderr, "next:%"PRId64" dts:%"PRId64" off:%"PRId64" %d\n",
- // ist->next_pts,
- // pkt.dts, input_files[ist->file_index].ts_offset,
- // ist->st->codec->codec_type);
- if (pkt.dts != AV_NOPTS_VALUE && ist->next_pts != AV_NOPTS_VALUE
- && (is->iformat->flags & AVFMT_TS_DISCONT)) {
- int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
- int64_t delta = pkt_dts - ist->next_pts;
- if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->pts) && !copy_ts) {
- input_files[ist->file_index].ts_offset -= delta;
- av_log(NULL, AV_LOG_DEBUG,
- "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
- delta, input_files[ist->file_index].ts_offset);
- pkt.dts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
- if (pkt.pts != AV_NOPTS_VALUE)
- pkt.pts-= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
- }
- }
-
- // fprintf(stderr,"read #%d.%d size=%d\n", ist->file_index, ist->st->index, pkt.size);
- if (output_packet(ist, output_streams, nb_output_streams, &pkt) < 0) {
-
- av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
- ist->file_index, ist->st->index);
- if (exit_on_error)
- exit_program(1);
- av_free_packet(&pkt);
- continue;
- }
-
- discard_packet:
- av_free_packet(&pkt);
-
- /* dump report by using the output first video and audio streams */
- print_report(output_files, output_streams, nb_output_streams, 0, timer_start);
- }
-
- /* at the end of stream, we must flush the decoder buffers */
- for (i = 0; i < nb_input_streams; i++) {
- ist = &input_streams[i];
- if (ist->decoding_needed) {
- output_packet(ist, output_streams, nb_output_streams, NULL);
- }
- }
- flush_encoders(output_streams, nb_output_streams);
-
- term_exit();
-
- /* write the trailer if needed and close file */
- for (i = 0; i < nb_output_files; i++) {
- os = output_files[i].ctx;
- av_write_trailer(os);
- }
-
- /* dump report by using the first video and audio streams */
- print_report(output_files, output_streams, nb_output_streams, 1, timer_start);
-
- /* close each encoder */
- for (i = 0; i < nb_output_streams; i++) {
- ost = &output_streams[i];
- if (ost->encoding_needed) {
- av_freep(&ost->st->codec->stats_in);
- avcodec_close(ost->st->codec);
- }
-#if CONFIG_AVFILTER
- avfilter_graph_free(&ost->graph);
-#endif
- }
-
- /* close each decoder */
- for (i = 0; i < nb_input_streams; i++) {
- ist = &input_streams[i];
- if (ist->decoding_needed) {
- avcodec_close(ist->st->codec);
- }
- }
-
- /* finished ! */
- ret = 0;
-
- fail:
- av_freep(&bit_buffer);
- av_freep(&no_packet);
-
- if (output_streams) {
- for (i = 0; i < nb_output_streams; i++) {
- ost = &output_streams[i];
- if (ost) {
- if (ost->stream_copy)
- av_freep(&ost->st->codec->extradata);
- if (ost->logfile) {
- fclose(ost->logfile);
- ost->logfile = NULL;
- }
- av_fifo_free(ost->fifo); /* works even if fifo is not
- initialized but set to zero */
- av_freep(&ost->st->codec->subtitle_header);
- av_free(ost->resample_frame.data[0]);
- av_free(ost->forced_kf_pts);
- if (ost->video_resample)
- sws_freeContext(ost->img_resample_ctx);
- if (ost->resample)
- audio_resample_close(ost->resample);
- if (ost->reformat_ctx)
- av_audio_convert_free(ost->reformat_ctx);
- av_dict_free(&ost->opts);
- }
- }
- }
- return ret;
-}
-
-static double parse_frame_aspect_ratio(const char *arg)
-{
- int x = 0, y = 0;
- double ar = 0;
- const char *p;
- char *end;
-
- p = strchr(arg, ':');
- if (p) {
- x = strtol(arg, &end, 10);
- if (end == p)
- y = strtol(end + 1, &end, 10);
- if (x > 0 && y > 0)
- ar = (double)x / (double)y;
- } else
- ar = strtod(arg, NULL);
-
- if (!ar) {
- av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
- exit_program(1);
- }
- return ar;
-}
-
-static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "codec:a", arg, options);
-}
-
-static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "codec:v", arg, options);
-}
-
-static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "codec:s", arg, options);
-}
-
-static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "codec:d", arg, options);
-}
-
-static int opt_map(OptionsContext *o, const char *opt, const char *arg)
-{
- StreamMap *m = NULL;
- int i, negative = 0, file_idx;
- int sync_file_idx = -1, sync_stream_idx;
- char *p, *sync;
- char *map;
-
- if (*arg == '-') {
- negative = 1;
- arg++;
- }
- map = av_strdup(arg);
-
- /* parse sync stream first, just pick first matching stream */
- if (sync = strchr(map, ',')) {
- *sync = 0;
- sync_file_idx = strtol(sync + 1, &sync, 0);
- if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
- av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
- exit_program(1);
- }
- if (*sync)
- sync++;
- for (i = 0; i < input_files[sync_file_idx].nb_streams; i++)
- if (check_stream_specifier(input_files[sync_file_idx].ctx,
- input_files[sync_file_idx].ctx->streams[i], sync) == 1) {
- sync_stream_idx = i;
- break;
- }
- if (i == input_files[sync_file_idx].nb_streams) {
- av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
- "match any streams.\n", arg);
- exit_program(1);
- }
- }
-
-
- file_idx = strtol(map, &p, 0);
- if (file_idx >= nb_input_files || file_idx < 0) {
- av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
- exit_program(1);
- }
- if (negative)
- /* disable some already defined maps */
- for (i = 0; i < o->nb_stream_maps; i++) {
- m = &o->stream_maps[i];
- if (file_idx == m->file_index &&
- check_stream_specifier(input_files[m->file_index].ctx,
- input_files[m->file_index].ctx->streams[m->stream_index],
- *p == ':' ? p + 1 : p) > 0)
- m->disabled = 1;
- }
- else
- for (i = 0; i < input_files[file_idx].nb_streams; i++) {
- if (check_stream_specifier(input_files[file_idx].ctx, input_files[file_idx].ctx->streams[i],
- *p == ':' ? p + 1 : p) <= 0)
- continue;
- o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
- &o->nb_stream_maps, o->nb_stream_maps + 1);
- m = &o->stream_maps[o->nb_stream_maps - 1];
-
- m->file_index = file_idx;
- m->stream_index = i;
-
- if (sync_file_idx >= 0) {
- m->sync_file_index = sync_file_idx;
- m->sync_stream_index = sync_stream_idx;
- } else {
- m->sync_file_index = file_idx;
- m->sync_stream_index = i;
- }
- }
-
- if (!m) {
- av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
- exit_program(1);
- }
-
- av_freep(&map);
- return 0;
-}
-
-static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
-{
- o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
- &o->nb_attachments, o->nb_attachments + 1);
- o->attachments[o->nb_attachments - 1] = arg;
- return 0;
-}
-
-/**
- * Parse a metadata specifier in arg.
- * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
- * @param index for type c/p, chapter/program index is written here
- * @param stream_spec for type s, the stream specifier is written here
- */
-static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
-{
- if (*arg) {
- *type = *arg;
- switch (*arg) {
- case 'g':
- break;
- case 's':
- if (*(++arg) && *arg != ':') {
- av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
- exit_program(1);
- }
- *stream_spec = *arg == ':' ? arg + 1 : "";
- break;
- case 'c':
- case 'p':
- if (*(++arg) == ':')
- *index = strtol(++arg, NULL, 0);
- break;
- default:
- av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
- exit_program(1);
- }
- } else
- *type = 'g';
-}
-
-static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
-{
- AVDictionary **meta_in = NULL;
- AVDictionary **meta_out;
- int i, ret = 0;
- char type_in, type_out;
- const char *istream_spec = NULL, *ostream_spec = NULL;
- int idx_in = 0, idx_out = 0;
-
- parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
- parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
-
- if (type_in == 'g' || type_out == 'g')
- o->metadata_global_manual = 1;
- if (type_in == 's' || type_out == 's')
- o->metadata_streams_manual = 1;
- if (type_in == 'c' || type_out == 'c')
- o->metadata_chapters_manual = 1;
-
-#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
- if ((index) < 0 || (index) >= (nb_elems)) {\
- av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
- (desc), (index));\
- exit_program(1);\
- }
-
-#define SET_DICT(type, meta, context, index)\
- switch (type) {\
- case 'g':\
- meta = &context->metadata;\
- break;\
- case 'c':\
- METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
- meta = &context->chapters[index]->metadata;\
- break;\
- case 'p':\
- METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
- meta = &context->programs[index]->metadata;\
- break;\
- }\
-
- SET_DICT(type_in, meta_in, ic, idx_in);
- SET_DICT(type_out, meta_out, oc, idx_out);
-
- /* for input streams choose first matching stream */
- if (type_in == 's') {
- for (i = 0; i < ic->nb_streams; i++) {
- if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
- meta_in = &ic->streams[i]->metadata;
- break;
- } else if (ret < 0)
- exit_program(1);
- }
- if (!meta_in) {
- av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
- exit_program(1);
- }
- }
-
- if (type_out == 's') {
- for (i = 0; i < oc->nb_streams; i++) {
- if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
- meta_out = &oc->streams[i]->metadata;
- av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
- } else if (ret < 0)
- exit_program(1);
- }
- } else
- av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
-
- return 0;
-}
-
-static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
-{
- const char *codec_string = encoder ? "encoder" : "decoder";
- AVCodec *codec;
-
- codec = encoder ?
- avcodec_find_encoder_by_name(name) :
- avcodec_find_decoder_by_name(name);
- if (!codec) {
- av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
- exit_program(1);
- }
- if (codec->type != type) {
- av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
- exit_program(1);
- }
- return codec;
-}
-
-static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
-{
- char *codec_name = NULL;
-
- MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
- if (codec_name) {
- AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
- st->codec->codec_id = codec->id;
- return codec;
- } else
- return avcodec_find_decoder(st->codec->codec_id);
-}
-
-/**
- * Add all the streams from the given input file to the global
- * list of input streams.
- */
-static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
-{
- int i;
-
- for (i = 0; i < ic->nb_streams; i++) {
- AVStream *st = ic->streams[i];
- AVCodecContext *dec = st->codec;
- InputStream *ist;
-
- input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
- ist = &input_streams[nb_input_streams - 1];
- ist->st = st;
- ist->file_index = nb_input_files;
- ist->discard = 1;
- ist->opts = filter_codec_opts(codec_opts, choose_decoder(o, ic, st), ic, st);
-
- ist->ts_scale = 1.0;
- MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
-
- ist->dec = choose_decoder(o, ic, st);
-
- switch (dec->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
- if(!ist->dec)
- ist->dec = avcodec_find_decoder(dec->codec_id);
- if(o->audio_disable)
- st->discard = AVDISCARD_ALL;
- break;
- case AVMEDIA_TYPE_VIDEO:
- if(!ist->dec)
- ist->dec = avcodec_find_decoder(dec->codec_id);
- if (dec->lowres) {
- dec->flags |= CODEC_FLAG_EMU_EDGE;
- }
-
- if (o->video_disable)
- st->discard = AVDISCARD_ALL;
- else if (video_discard)
- st->discard = video_discard;
- break;
- case AVMEDIA_TYPE_DATA:
- break;
- case AVMEDIA_TYPE_SUBTITLE:
- if(!ist->dec)
- ist->dec = avcodec_find_decoder(dec->codec_id);
- if(o->subtitle_disable)
- st->discard = AVDISCARD_ALL;
- break;
- case AVMEDIA_TYPE_ATTACHMENT:
- case AVMEDIA_TYPE_UNKNOWN:
- break;
- default:
- abort();
- }
- }
-}
-
-static void assert_file_overwrite(const char *filename)
-{
- if ((!file_overwrite || no_file_overwrite) &&
- (strchr(filename, ':') == NULL || filename[1] == ':' ||
- av_strstart(filename, "file:", NULL))) {
- if (avio_check(filename, 0) == 0) {
- if (!using_stdin && (!no_file_overwrite || file_overwrite)) {
- fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
- fflush(stderr);
- if (!read_yesno()) {
- fprintf(stderr, "Not overwriting - exiting\n");
- exit_program(1);
- }
- }
- else {
- fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
- exit_program(1);
- }
- }
- }
-}
-
-static void dump_attachment(AVStream *st, const char *filename)
-{
- int ret;
- AVIOContext *out = NULL;
- AVDictionaryEntry *e;
-
- if (!st->codec->extradata_size) {
- av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
- nb_input_files - 1, st->index);
- return;
- }
- if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
- filename = e->value;
- if (!*filename) {
- av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
- "in stream #%d:%d.\n", nb_input_files - 1, st->index);
- exit_program(1);
- }
-
- assert_file_overwrite(filename);
-
- if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
- filename);
- exit_program(1);
- }
-
- avio_write(out, st->codec->extradata, st->codec->extradata_size);
- avio_flush(out);
- avio_close(out);
-}
-
-static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
-{
- AVFormatContext *ic;
- AVInputFormat *file_iformat = NULL;
- int err, i, ret;
- int64_t timestamp;
- uint8_t buf[128];
- AVDictionary **opts;
- int orig_nb_streams; // number of streams before avformat_find_stream_info
-
- if (o->format) {
- if (!(file_iformat = av_find_input_format(o->format))) {
- av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
- exit_program(1);
- }
- }
-
- if (!strcmp(filename, "-"))
- filename = "pipe:";
-
- using_stdin |= !strncmp(filename, "pipe:", 5) ||
- !strcmp(filename, "/dev/stdin");
-
- /* get default parameters from command line */
- ic = avformat_alloc_context();
- if (!ic) {
- print_error(filename, AVERROR(ENOMEM));
- exit_program(1);
- }
- if (o->nb_audio_sample_rate) {
- snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
- av_dict_set(&format_opts, "sample_rate", buf, 0);
- }
- if (o->nb_audio_channels) {
- snprintf(buf, sizeof(buf), "%d", o->audio_channels[o->nb_audio_channels - 1].u.i);
- av_dict_set(&format_opts, "channels", buf, 0);
- }
- if (o->nb_frame_rates) {
- av_dict_set(&format_opts, "framerate", o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
- }
- if (o->nb_frame_sizes) {
- av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
- }
- if (o->nb_frame_pix_fmts)
- av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
-
- ic->flags |= AVFMT_FLAG_NONBLOCK;
- ic->interrupt_callback = int_cb;
-
- /* open the input file with generic avformat function */
- err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
- if (err < 0) {
- print_error(filename, err);
- exit_program(1);
- }
- assert_avoptions(format_opts);
-
- /* apply forced codec ids */
- for (i = 0; i < ic->nb_streams; i++)
- choose_decoder(o, ic, ic->streams[i]);
-
- /* Set AVCodecContext options for avformat_find_stream_info */
- opts = setup_find_stream_info_opts(ic, codec_opts);
- orig_nb_streams = ic->nb_streams;
-
- /* If not enough info to get the stream parameters, we decode the
- first frames to get it. (used in mpeg case for example) */
- ret = avformat_find_stream_info(ic, opts);
- if (ret < 0) {
- av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
- avformat_close_input(&ic);
- exit_program(1);
- }
-
- timestamp = o->start_time;
- /* add the stream start time */
- if (ic->start_time != AV_NOPTS_VALUE)
- timestamp += ic->start_time;
-
- /* if seeking requested, we execute it */
- if (o->start_time != 0) {
- ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
- if (ret < 0) {
- av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
- filename, (double)timestamp / AV_TIME_BASE);
- }
- }
-
- /* update the current parameters so that they match the one of the input stream */
- add_input_streams(o, ic);
-
- /* dump the file content */
- av_dump_format(ic, nb_input_files, filename, 0);
-
- input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
- input_files[nb_input_files - 1].ctx = ic;
- input_files[nb_input_files - 1].ist_index = nb_input_streams - ic->nb_streams;
- input_files[nb_input_files - 1].ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
- input_files[nb_input_files - 1].nb_streams = ic->nb_streams;
- input_files[nb_input_files - 1].rate_emu = o->rate_emu;
-
- for (i = 0; i < o->nb_dump_attachment; i++) {
- int j;
-
- for (j = 0; j < ic->nb_streams; j++) {
- AVStream *st = ic->streams[j];
-
- if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
- dump_attachment(st, o->dump_attachment[i].u.str);
- }
- }
-
- for (i = 0; i < orig_nb_streams; i++)
- av_dict_free(&opts[i]);
- av_freep(&opts);
-
- reset_options(o);
- return 0;
-}
-
-static void parse_forced_key_frames(char *kf, OutputStream *ost,
- AVCodecContext *avctx)
-{
- char *p;
- int n = 1, i;
- int64_t t;
-
- for (p = kf; *p; p++)
- if (*p == ',')
- n++;
- ost->forced_kf_count = n;
- ost->forced_kf_pts = av_malloc(sizeof(*ost->forced_kf_pts) * n);
- if (!ost->forced_kf_pts) {
- av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
- exit_program(1);
- }
- for (i = 0; i < n; i++) {
- p = i ? strchr(p, ',') + 1 : kf;
- t = parse_time_or_die("force_key_frames", p, 1);
- ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
- }
-}
-
-static uint8_t *get_line(AVIOContext *s)
-{
- AVIOContext *line;
- uint8_t *buf;
- char c;
-
- if (avio_open_dyn_buf(&line) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
- exit_program(1);
- }
-
- while ((c = avio_r8(s)) && c != '\n')
- avio_w8(line, c);
- avio_w8(line, 0);
- avio_close_dyn_buf(line, &buf);
-
- return buf;
-}
-
-static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
-{
- int i, ret = 1;
- char filename[1000];
- const char *base[3] = { getenv("AVCONV_DATADIR"),
- getenv("HOME"),
- AVCONV_DATADIR,
- };
-
- for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
- if (!base[i])
- continue;
- if (codec_name) {
- snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
- i != 1 ? "" : "/.avconv", codec_name, preset_name);
- ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
- }
- if (ret) {
- snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
- i != 1 ? "" : "/.avconv", preset_name);
- ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
- }
- }
- return ret;
-}
-
-static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
-{
- char *codec_name = NULL;
-
- MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
- if (!codec_name) {
- ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
- NULL, ost->st->codec->codec_type);
- ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
- } else if (!strcmp(codec_name, "copy"))
- ost->stream_copy = 1;
- else {
- ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
- ost->st->codec->codec_id = ost->enc->id;
- }
-}
-
-static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
-{
- OutputStream *ost;
- AVStream *st = avformat_new_stream(oc, NULL);
- int idx = oc->nb_streams - 1, ret = 0;
- char *bsf = NULL, *next, *codec_tag = NULL;
- AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
- double qscale = -1;
- char *buf = NULL, *arg = NULL, *preset = NULL;
- AVIOContext *s = NULL;
-
- if (!st) {
- av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
- exit_program(1);
- }
-
- if (oc->nb_streams - 1 < o->nb_streamid_map)
- st->id = o->streamid_map[oc->nb_streams - 1];
-
- output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
- nb_output_streams + 1);
- ost = &output_streams[nb_output_streams - 1];
- ost->file_index = nb_output_files;
- ost->index = idx;
- ost->st = st;
- st->codec->codec_type = type;
- choose_encoder(o, oc, ost);
- if (ost->enc) {
- ost->opts = filter_codec_opts(codec_opts, ost->enc, oc, st);
- }
-
- avcodec_get_context_defaults3(st->codec, ost->enc);
- st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
-
- MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
- if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
- do {
- buf = get_line(s);
- if (!buf[0] || buf[0] == '#') {
- av_free(buf);
- continue;
- }
- if (!(arg = strchr(buf, '='))) {
- av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
- exit_program(1);
- }
- *arg++ = 0;
- av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
- av_free(buf);
- } while (!s->eof_reached);
- avio_close(s);
- }
- if (ret) {
- av_log(NULL, AV_LOG_FATAL,
- "Preset %s specified for stream %d:%d, but could not be opened.\n",
- preset, ost->file_index, ost->index);
- exit_program(1);
- }
-
- ost->max_frames = INT64_MAX;
- MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
-
- MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
- while (bsf) {
- if (next = strchr(bsf, ','))
- *next++ = 0;
- if (!(bsfc = av_bitstream_filter_init(bsf))) {
- av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
- exit_program(1);
- }
- if (bsfc_prev)
- bsfc_prev->next = bsfc;
- else
- ost->bitstream_filters = bsfc;
-
- bsfc_prev = bsfc;
- bsf = next;
- }
-
- MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
- if (codec_tag) {
- uint32_t tag = strtol(codec_tag, &next, 0);
- if (*next)
- tag = AV_RL32(codec_tag);
- st->codec->codec_tag = tag;
- }
-
- MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
- if (qscale >= 0 || same_quant) {
- st->codec->flags |= CODEC_FLAG_QSCALE;
- st->codec->global_quality = FF_QP2LAMBDA * qscale;
- }
-
- if (oc->oformat->flags & AVFMT_GLOBALHEADER)
- st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
-
- av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
- return ost;
-}
-
-static void parse_matrix_coeffs(uint16_t *dest, const char *str)
-{
- int i;
- const char *p = str;
- for (i = 0;; i++) {
- dest[i] = atoi(p);
- if (i == 63)
- break;
- p = strchr(p, ',');
- if (!p) {
- av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
- exit_program(1);
- }
- p++;
- }
-}
-
-static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
-{
- AVStream *st;
- OutputStream *ost;
- AVCodecContext *video_enc;
-
- ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
- st = ost->st;
- video_enc = st->codec;
-
- if (!ost->stream_copy) {
- const char *p = NULL;
- char *forced_key_frames = NULL, *frame_rate = NULL, *frame_size = NULL;
- char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
- char *intra_matrix = NULL, *inter_matrix = NULL, *filters = NULL;
- int i;
-
- MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
- if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
- exit_program(1);
- }
-
- MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
- if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
- exit_program(1);
- }
-
- MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
- if (frame_aspect_ratio)
- ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
-
- MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
- if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
- av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
- exit_program(1);
- }
- st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
-
- MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
- if (intra_matrix) {
- if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
- av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
- exit_program(1);
- }
- parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
- }
- MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
- if (inter_matrix) {
- if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
- av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
- exit_program(1);
- }
- parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
- }
-
- MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
- for (i = 0; p; i++) {
- int start, end, q;
- int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
- if (e != 3) {
- av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
- exit_program(1);
- }
- video_enc->rc_override =
- av_realloc(video_enc->rc_override,
- sizeof(RcOverride) * (i + 1));
- video_enc->rc_override[i].start_frame = start;
- video_enc->rc_override[i].end_frame = end;
- if (q > 0) {
- video_enc->rc_override[i].qscale = q;
- video_enc->rc_override[i].quality_factor = 1.0;
- }
- else {
- video_enc->rc_override[i].qscale = 0;
- video_enc->rc_override[i].quality_factor = -q/100.0;
- }
- p = strchr(p, '/');
- if (p) p++;
- }
- video_enc->rc_override_count = i;
- if (!video_enc->rc_initial_buffer_occupancy)
- video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
- video_enc->intra_dc_precision = intra_dc_precision - 8;
-
- /* two pass mode */
- if (do_pass) {
- if (do_pass == 1) {
- video_enc->flags |= CODEC_FLAG_PASS1;
- } else {
- video_enc->flags |= CODEC_FLAG_PASS2;
- }
- }
-
- MATCH_PER_STREAM_OPT(forced_key_frames, str, forced_key_frames, oc, st);
- if (forced_key_frames)
- parse_forced_key_frames(forced_key_frames, ost, video_enc);
-
- MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
-
- ost->top_field_first = -1;
- MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
-
-#if CONFIG_AVFILTER
- MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
- if (filters)
- ost->avfilter = av_strdup(filters);
-#endif
- } else {
- MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
- }
-
- return ost;
-}
-
-static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
-{
- AVStream *st;
- OutputStream *ost;
- AVCodecContext *audio_enc;
-
- ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
- st = ost->st;
-
- audio_enc = st->codec;
- audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
-
- if (!ost->stream_copy) {
- char *sample_fmt = NULL;
-
- MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
-
- MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
- if (sample_fmt &&
- (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
- av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
- exit_program(1);
- }
-
- MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
- }
-
- return ost;
-}
-
-static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
-{
- OutputStream *ost;
-
- ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
- if (!ost->stream_copy) {
- av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
- exit_program(1);
- }
-
- return ost;
-}
-
-static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
-{
- OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
- ost->stream_copy = 1;
- return ost;
-}
-
-static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
-{
- AVStream *st;
- OutputStream *ost;
- AVCodecContext *subtitle_enc;
-
- ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
- st = ost->st;
- subtitle_enc = st->codec;
-
- subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
-
- return ost;
-}
-
-/* arg format is "output-stream-index:streamid-value". */
-static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
-{
- int idx;
- char *p;
- char idx_str[16];
-
- av_strlcpy(idx_str, arg, sizeof(idx_str));
- p = strchr(idx_str, ':');
- if (!p) {
- av_log(NULL, AV_LOG_FATAL,
- "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
- arg, opt);
- exit_program(1);
- }
- *p++ = '\0';
- idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
- o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
- o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
- return 0;
-}
-
-static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
-{
- AVFormatContext *is = ifile->ctx;
- AVFormatContext *os = ofile->ctx;
- int i;
-
- for (i = 0; i < is->nb_chapters; i++) {
- AVChapter *in_ch = is->chapters[i], *out_ch;
- int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
- AV_TIME_BASE_Q, in_ch->time_base);
- int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
- av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
-
-
- if (in_ch->end < ts_off)
- continue;
- if (rt != INT64_MAX && in_ch->start > rt + ts_off)
- break;
-
- out_ch = av_mallocz(sizeof(AVChapter));
- if (!out_ch)
- return AVERROR(ENOMEM);
-
- out_ch->id = in_ch->id;
- out_ch->time_base = in_ch->time_base;
- out_ch->start = FFMAX(0, in_ch->start - ts_off);
- out_ch->end = FFMIN(rt, in_ch->end - ts_off);
-
- if (copy_metadata)
- av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
-
- os->nb_chapters++;
- os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
- if (!os->chapters)
- return AVERROR(ENOMEM);
- os->chapters[os->nb_chapters - 1] = out_ch;
- }
- return 0;
-}
-
-static void opt_output_file(void *optctx, const char *filename)
-{
- OptionsContext *o = optctx;
- AVFormatContext *oc;
- int i, err;
- AVOutputFormat *file_oformat;
- OutputStream *ost;
- InputStream *ist;
-
- if (!strcmp(filename, "-"))
- filename = "pipe:";
-
- err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
- if (!oc) {
- print_error(filename, err);
- exit_program(1);
- }
-
- file_oformat= oc->oformat;
- oc->interrupt_callback = int_cb;
-
- if (!o->nb_stream_maps) {
- /* pick the "best" stream of each type */
-#define NEW_STREAM(type, index)\
- if (index >= 0) {\
- ost = new_ ## type ## _stream(o, oc);\
- ost->source_index = index;\
- ost->sync_ist = &input_streams[index];\
- input_streams[index].discard = 0;\
- }
-
- /* video: highest resolution */
- if (!o->video_disable && oc->oformat->video_codec != CODEC_ID_NONE) {
- int area = 0, idx = -1;
- for (i = 0; i < nb_input_streams; i++) {
- ist = &input_streams[i];
- if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
- ist->st->codec->width * ist->st->codec->height > area) {
- area = ist->st->codec->width * ist->st->codec->height;
- idx = i;
- }
- }
- NEW_STREAM(video, idx);
- }
-
- /* audio: most channels */
- if (!o->audio_disable && oc->oformat->audio_codec != CODEC_ID_NONE) {
- int channels = 0, idx = -1;
- for (i = 0; i < nb_input_streams; i++) {
- ist = &input_streams[i];
- if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
- ist->st->codec->channels > channels) {
- channels = ist->st->codec->channels;
- idx = i;
- }
- }
- NEW_STREAM(audio, idx);
- }
-
- /* subtitles: pick first */
- if (!o->subtitle_disable && oc->oformat->subtitle_codec != CODEC_ID_NONE) {
- for (i = 0; i < nb_input_streams; i++)
- if (input_streams[i].st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- NEW_STREAM(subtitle, i);
- break;
- }
- }
- /* do something with data? */
- } else {
- for (i = 0; i < o->nb_stream_maps; i++) {
- StreamMap *map = &o->stream_maps[i];
-
- if (map->disabled)
- continue;
-
- ist = &input_streams[input_files[map->file_index].ist_index + map->stream_index];
- switch (ist->st->codec->codec_type) {
- case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
- case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
- case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
- case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
- case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
- default:
- av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
- map->file_index, map->stream_index);
- exit_program(1);
- }
-
- ost->source_index = input_files[map->file_index].ist_index + map->stream_index;
- ost->sync_ist = &input_streams[input_files[map->sync_file_index].ist_index +
- map->sync_stream_index];
- ist->discard = 0;
- }
- }
-
- /* handle attached files */
- for (i = 0; i < o->nb_attachments; i++) {
- AVIOContext *pb;
- uint8_t *attachment;
- const char *p;
- int64_t len;
-
- if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
- av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
- o->attachments[i]);
- exit_program(1);
- }
- if ((len = avio_size(pb)) <= 0) {
- av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
- o->attachments[i]);
- exit_program(1);
- }
- if (!(attachment = av_malloc(len))) {
- av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
- o->attachments[i]);
- exit_program(1);
- }
- avio_read(pb, attachment, len);
-
- ost = new_attachment_stream(o, oc);
- ost->stream_copy = 0;
- ost->source_index = -1;
- ost->attachment_filename = o->attachments[i];
- ost->st->codec->extradata = attachment;
- ost->st->codec->extradata_size = len;
-
- p = strrchr(o->attachments[i], '/');
- av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
- avio_close(pb);
- }
-
- output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
- output_files[nb_output_files - 1].ctx = oc;
- output_files[nb_output_files - 1].ost_index = nb_output_streams - oc->nb_streams;
- output_files[nb_output_files - 1].recording_time = o->recording_time;
- output_files[nb_output_files - 1].start_time = o->start_time;
- output_files[nb_output_files - 1].limit_filesize = o->limit_filesize;
- av_dict_copy(&output_files[nb_output_files - 1].opts, format_opts, 0);
-
- /* check filename in case of an image number is expected */
- if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
- if (!av_filename_number_test(oc->filename)) {
- print_error(oc->filename, AVERROR(EINVAL));
- exit_program(1);
- }
- }
-
- if (!(oc->oformat->flags & AVFMT_NOFILE)) {
- /* test if it already exists to avoid losing precious files */
- assert_file_overwrite(filename);
-
- /* open the file */
- if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
- &oc->interrupt_callback,
- &output_files[nb_output_files - 1].opts)) < 0) {
- print_error(filename, err);
- exit_program(1);
- }
- }
-
- if (o->mux_preload) {
- uint8_t buf[64];
- snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
- av_dict_set(&output_files[nb_output_files - 1].opts, "preload", buf, 0);
- }
- oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
-
- /* copy metadata */
- for (i = 0; i < o->nb_metadata_map; i++) {
- char *p;
- int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
-
- if (in_file_index < 0)
- continue;
- if (in_file_index >= nb_input_files) {
- av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
- exit_program(1);
- }
- copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index].ctx, o);
- }
-
- /* copy chapters */
- if (o->chapters_input_file >= nb_input_files) {
- if (o->chapters_input_file == INT_MAX) {
- /* copy chapters from the first input file that has them*/
- o->chapters_input_file = -1;
- for (i = 0; i < nb_input_files; i++)
- if (input_files[i].ctx->nb_chapters) {
- o->chapters_input_file = i;
- break;
- }
- } else {
- av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
- o->chapters_input_file);
- exit_program(1);
- }
- }
- if (o->chapters_input_file >= 0)
- copy_chapters(&input_files[o->chapters_input_file], &output_files[nb_output_files - 1],
- !o->metadata_chapters_manual);
-
- /* copy global metadata by default */
- if (!o->metadata_global_manual && nb_input_files)
- av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
- AV_DICT_DONT_OVERWRITE);
- if (!o->metadata_streams_manual)
- for (i = output_files[nb_output_files - 1].ost_index; i < nb_output_streams; i++) {
- InputStream *ist;
- if (output_streams[i].source_index < 0) /* this is true e.g. for attached files */
- continue;
- ist = &input_streams[output_streams[i].source_index];
- av_dict_copy(&output_streams[i].st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
- }
-
- /* process manually set metadata */
- for (i = 0; i < o->nb_metadata; i++) {
- AVDictionary **m;
- char type, *val;
- const char *stream_spec;
- int index = 0, j, ret;
-
- val = strchr(o->metadata[i].u.str, '=');
- if (!val) {
- av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
- o->metadata[i].u.str);
- exit_program(1);
- }
- *val++ = 0;
-
- parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
- if (type == 's') {
- for (j = 0; j < oc->nb_streams; j++) {
- if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
- av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
- } else if (ret < 0)
- exit_program(1);
- }
- printf("ret %d, stream_spec %s\n", ret, stream_spec);
- }
- else {
- switch (type) {
- case 'g':
- m = &oc->metadata;
- break;
- case 'c':
- if (index < 0 || index >= oc->nb_chapters) {
- av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
- exit_program(1);
- }
- m = &oc->chapters[index]->metadata;
- break;
- default:
- av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
- exit_program(1);
- }
- av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
- }
- }
-
- reset_options(o);
-}
-
-/* same option as mencoder */
-static int opt_pass(const char *opt, const char *arg)
-{
- do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
- return 0;
-}
-
-static int64_t getutime(void)
-{
-#if HAVE_GETRUSAGE
- struct rusage rusage;
-
- getrusage(RUSAGE_SELF, &rusage);
- return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec;
-#elif HAVE_GETPROCESSTIMES
- HANDLE proc;
- FILETIME c, e, k, u;
- proc = GetCurrentProcess();
- GetProcessTimes(proc, &c, &e, &k, &u);
- return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10;
-#else
- return av_gettime();
-#endif
-}
-
-static int64_t getmaxrss(void)
-{
-#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS
- struct rusage rusage;
- getrusage(RUSAGE_SELF, &rusage);
- return (int64_t)rusage.ru_maxrss * 1024;
-#elif HAVE_GETPROCESSMEMORYINFO
- HANDLE proc;
- PROCESS_MEMORY_COUNTERS memcounters;
- proc = GetCurrentProcess();
- memcounters.cb = sizeof(memcounters);
- GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters));
- return memcounters.PeakPagefileUsage;
-#else
- return 0;
-#endif
-}
-
-static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "q:a", arg, options);
-}
-
-static void show_usage(void)
-{
- av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
- av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
- av_log(NULL, AV_LOG_INFO, "\n");
-}
-
-static int opt_help(const char *opt, const char *arg)
-{
- int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
- av_log_set_callback(log_callback_help);
- show_usage();
- show_help_options(options, "Main options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
- show_help_options(options, "\nAdvanced options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
- OPT_EXPERT);
- show_help_options(options, "\nVideo options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
- OPT_VIDEO);
- show_help_options(options, "\nAdvanced Video options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
- OPT_VIDEO | OPT_EXPERT);
- show_help_options(options, "\nAudio options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
- OPT_AUDIO);
- show_help_options(options, "\nAdvanced Audio options:\n",
- OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
- OPT_AUDIO | OPT_EXPERT);
- show_help_options(options, "\nSubtitle options:\n",
- OPT_SUBTITLE | OPT_GRAB,
- OPT_SUBTITLE);
- show_help_options(options, "\nAudio/Video grab options:\n",
- OPT_GRAB,
- OPT_GRAB);
- printf("\n");
- show_help_children(avcodec_get_class(), flags);
- show_help_children(avformat_get_class(), flags);
- show_help_children(sws_get_class(), flags);
-
- return 0;
-}
-
-static int opt_target(OptionsContext *o, const char *opt, const char *arg)
-{
- enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
- static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
-
- if (!strncmp(arg, "pal-", 4)) {
- norm = PAL;
- arg += 4;
- } else if (!strncmp(arg, "ntsc-", 5)) {
- norm = NTSC;
- arg += 5;
- } else if (!strncmp(arg, "film-", 5)) {
- norm = FILM;
- arg += 5;
- } else {
- /* Try to determine PAL/NTSC by peeking in the input files */
- if (nb_input_files) {
- int i, j, fr;
- for (j = 0; j < nb_input_files; j++) {
- for (i = 0; i < input_files[j].nb_streams; i++) {
- AVCodecContext *c = input_files[j].ctx->streams[i]->codec;
- if (c->codec_type != AVMEDIA_TYPE_VIDEO)
- continue;
- fr = c->time_base.den * 1000 / c->time_base.num;
- if (fr == 25000) {
- norm = PAL;
- break;
- } else if ((fr == 29970) || (fr == 23976)) {
- norm = NTSC;
- break;
- }
- }
- if (norm != UNKNOWN)
- break;
- }
- }
- if (norm != UNKNOWN)
- av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
- }
-
- if (norm == UNKNOWN) {
- av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
- av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
- av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
- exit_program(1);
- }
-
- if (!strcmp(arg, "vcd")) {
- opt_video_codec(o, "c:v", "mpeg1video");
- opt_audio_codec(o, "c:a", "mp2");
- parse_option(o, "f", "vcd", options);
-
- parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
- parse_option(o, "r", frame_rates[norm], options);
- opt_default("g", norm == PAL ? "15" : "18");
-
- opt_default("b", "1150000");
- opt_default("maxrate", "1150000");
- opt_default("minrate", "1150000");
- opt_default("bufsize", "327680"); // 40*1024*8;
-
- opt_default("b:a", "224000");
- parse_option(o, "ar", "44100", options);
- parse_option(o, "ac", "2", options);
-
- opt_default("packetsize", "2324");
- opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
-
- /* We have to offset the PTS, so that it is consistent with the SCR.
- SCR starts at 36000, but the first two packs contain only padding
- and the first pack from the other stream, respectively, may also have
- been written before.
- So the real data starts at SCR 36000+3*1200. */
- o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
- } else if (!strcmp(arg, "svcd")) {
-
- opt_video_codec(o, "c:v", "mpeg2video");
- opt_audio_codec(o, "c:a", "mp2");
- parse_option(o, "f", "svcd", options);
-
- parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
- parse_option(o, "r", frame_rates[norm], options);
- opt_default("g", norm == PAL ? "15" : "18");
-
- opt_default("b", "2040000");
- opt_default("maxrate", "2516000");
- opt_default("minrate", "0"); // 1145000;
- opt_default("bufsize", "1835008"); // 224*1024*8;
- opt_default("flags", "+scan_offset");
-
-
- opt_default("b:a", "224000");
- parse_option(o, "ar", "44100", options);
-
- opt_default("packetsize", "2324");
-
- } else if (!strcmp(arg, "dvd")) {
-
- opt_video_codec(o, "c:v", "mpeg2video");
- opt_audio_codec(o, "c:a", "ac3");
- parse_option(o, "f", "dvd", options);
-
- parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
- parse_option(o, "r", frame_rates[norm], options);
- opt_default("g", norm == PAL ? "15" : "18");
-
- opt_default("b", "6000000");
- opt_default("maxrate", "9000000");
- opt_default("minrate", "0"); // 1500000;
- opt_default("bufsize", "1835008"); // 224*1024*8;
-
- opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
- opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
-
- opt_default("b:a", "448000");
- parse_option(o, "ar", "48000", options);
-
- } else if (!strncmp(arg, "dv", 2)) {
-
- parse_option(o, "f", "dv", options);
-
- parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
- parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
- norm == PAL ? "yuv420p" : "yuv411p", options);
- parse_option(o, "r", frame_rates[norm], options);
-
- parse_option(o, "ar", "48000", options);
- parse_option(o, "ac", "2", options);
-
- } else {
- av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
- return AVERROR(EINVAL);
- }
- return 0;
-}
-
-static int opt_vstats_file(const char *opt, const char *arg)
-{
- av_free (vstats_filename);
- vstats_filename = av_strdup (arg);
- return 0;
-}
-
-static int opt_vstats(const char *opt, const char *arg)
-{
- char filename[40];
- time_t today2 = time(NULL);
- struct tm *today = localtime(&today2);
-
- snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
- today->tm_sec);
- return opt_vstats_file(opt, filename);
-}
-
-static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "frames:v", arg, options);
-}
-
-static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "frames:a", arg, options);
-}
-
-static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "frames:d", arg, options);
-}
-
-static void log_callback_null(void* ptr, int level, const char* fmt, va_list vl)
-{
-}
-
-static int opt_passlogfile(const char *opt, const char *arg)
-{
- pass_logfilename_prefix = arg;
-#if CONFIG_LIBX264_ENCODER
- return opt_default("passlogfile", arg);
-#else
- return 0;
-#endif
-}
-
-static int opt_video_tag(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "tag:v", arg, options);
-}
-
-static int opt_audio_tag(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "tag:a", arg, options);
-}
-
-static int opt_subtitle_tag(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "tag:s", arg, options);
-}
-
-static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
-{
- return parse_option(o, "filter:v", arg, options);
-}
-
-static int opt_vsync(const char *opt, const char *arg)
-{
- if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
- else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
- else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
-
- if (video_sync_method == VSYNC_AUTO)
- video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
- return 0;
-}
-
-#define OFFSET(x) offsetof(OptionsContext, x)
-static const OptionDef options[] = {
- /* main options */
-#include "cmdutils_common_opts.h"
- { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
- { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
- { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
- { "n", OPT_BOOL, {(void*)&no_file_overwrite}, "do not overwrite output files" },
- { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
- { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
- { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
- { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
- { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
- "outfile[,metadata]:infile[,metadata]" },
- { "map_chapters", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)}, "set chapters mapping", "input_file_index" },
- { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
- { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
- { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
- { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
- { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
- { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
- { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
- { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
- "add timings for benchmarking" },
- { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
- { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
- "dump each input packet" },
- { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
- "when dumping packets, also dump the payload" },
- { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
- { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
- { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
- { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
- { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
- { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)©_ts}, "copy timestamps" },
- { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)©_tb}, "copy input stream time base when stream copying" },
- { "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
- { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
- { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
- { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
- { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
- { "tag", OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
- { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
- { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
-#if CONFIG_AVFILTER
- { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
-#endif
- { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
- { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
- { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
-
- /* video options */
- { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
- { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
- { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
- { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
- { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
- { "bits_per_raw_sample", OPT_INT | HAS_ARG | OPT_VIDEO, {(void*)&frame_bits_per_raw_sample}, "set the number of bits per raw sample", "number" },
- { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
- { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
- { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
- { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
- { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
- "use same quantizer as source (implies VBR)" },
- { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
- { "passlogfile", HAS_ARG | OPT_VIDEO, {(void*)&opt_passlogfile}, "select two pass log file name prefix", "prefix" },
- { "deinterlace", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_deinterlace},
- "deinterlace pictures" },
- { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
- { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
-#if CONFIG_AVFILTER
- { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
-#endif
- { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
- { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
- { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
- { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
- { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
- { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
- { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
- { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
- { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
-
- /* audio options */
- { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
- { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
- { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
- { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
- { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
- { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
- { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
- { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
- { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
-
- /* subtitle options */
- { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
- { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
- { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
-
- /* grab options */
- { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
-
- /* muxer options */
- { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
- { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)}, "set the initial demux-decode delay", "seconds" },
-
- { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
-
- /* data codec support */
- { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
-
- { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
- { NULL, },
-};
-
-int main(int argc, char **argv)
-{
- OptionsContext o = { 0 };
- int64_t ti;
-
- reset_options(&o);
-
- av_log_set_flags(AV_LOG_SKIP_REPEATED);
- parse_loglevel(argc, argv, options);
-
- if(argc>1 && !strcmp(argv[1], "-d")){
- run_as_daemon=1;
- av_log_set_callback(log_callback_null);
- argc--;
- argv++;
- }
-
- avcodec_register_all();
-#if CONFIG_AVDEVICE
- avdevice_register_all();
-#endif
-#if CONFIG_AVFILTER
- avfilter_register_all();
-#endif
- av_register_all();
- avformat_network_init();
-
- show_banner(argc, argv, options);
-
- /* parse options */
- parse_options(&o, argc, argv, options, opt_output_file);
-
- if (nb_output_files <= 0 && nb_input_files == 0) {
- show_usage();
- av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name);
- exit_program(1);
- }
-
- /* file converter / grab */
- if (nb_output_files <= 0) {
- fprintf(stderr, "At least one output file must be specified\n");
- exit_program(1);
- }
-
- if (nb_input_files == 0) {
- av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
- exit_program(1);
- }
-
- ti = getutime();
- if (transcode(output_files, nb_output_files, input_files, nb_input_files) < 0)
- exit_program(1);
- ti = getutime() - ti;
- if (do_benchmark) {
- int maxrss = getmaxrss() / 1024;
- printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
- }
-
- exit_program(0);
- return 0;
-}
diff --git a/configure b/configure
index 03753be..07d473e 100755
--- a/configure
+++ b/configure
@@ -81,7 +81,6 @@ Configuration options:
and binaries will be unredistributable [no]
--disable-doc do not build documentation
--disable-ffmpeg disable ffmpeg build
- --enable-avconv enable avconv build
--disable-ffplay disable ffplay build
--disable-ffprobe disable ffprobe build
--disable-ffserver disable ffserver build
@@ -997,7 +996,6 @@ PROGRAM_LIST="
CONFIG_LIST="
$COMPONENT_LIST
$PROGRAM_LIST
- avconv
avplay
avprobe
avserver
@@ -1673,7 +1671,6 @@ avformat_deps="avcodec"
postproc_deps="gpl"
# programs
-avconv_deps="avcodec avformat swscale"
ffplay_deps="avcodec avformat swscale sdl"
ffplay_select="buffersink_filter rdft"
ffprobe_deps="avcodec avformat"
diff --git a/doc/avconv.texi b/doc/avconv.texi
deleted file mode 100644
index 85c1457..0000000
--- a/doc/avconv.texi
+++ /dev/null
@@ -1,1063 +0,0 @@
-\input texinfo @c -*- texinfo -*-
-
- at settitle avconv Documentation
- at titlepage
- at center @titlefont{avconv Documentation}
- at end titlepage
-
- at top
-
- at contents
-
- at chapter Synopsis
-
-The generic syntax is:
-
- at example
- at c man begin SYNOPSIS
-avconv [global options] [[infile options][@option{-i} @var{infile}]]... @{[outfile options] @var{outfile}@}...
- at c man end
- at end example
-
- at chapter Description
- at c man begin DESCRIPTION
-
-avconv is a very fast video and audio converter that can also grab from
-a live audio/video source. It can also convert between arbitrary sample
-rates and resize video on the fly with a high quality polyphase filter.
-
-avconv reads from an arbitrary number of input "files" (which can be regular
-files, pipes, network streams, grabbing devices, etc.), specified by the
- at code{-i} option, and writes to an arbitrary number of output "files", which are
-specified by a plain output filename. Anything found on the command line which
-cannot be interpreted as an option is considered to be an output filename.
-
-Each input or output file can in principle contain any number of streams of
-different types (video/audio/subtitle/attachment/data). Allowed number and/or
-types of streams can be limited by the container format. Selecting, which
-streams from which inputs go into output, is done either automatically or with
-the @code{-map} option (see the Stream selection chapter).
-
-To refer to input files in options, you must use their indices (0-based). E.g.
-the first input file is @code{0}, the second is @code{1} etc. Similarly, streams
-within a file are referred to by their indices. E.g. @code{2:3} refers to the
-fourth stream in the third input file. See also the Stream specifiers chapter.
-
-As a general rule, options are applied to the next specified
-file. Therefore, order is important, and you can have the same
-option on the command line multiple times. Each occurrence is
-then applied to the next input or output file.
-Exceptions from this rule are the global options (e.g. verbosity level),
-which should be specified first.
-
-Do not mix input and output files -- first specify all input files, then all
-output files. Also do not mix options which belong to different files. All
-options apply ONLY to the next input or output file and are reset between files.
-
- at itemize
- at item
-To set the video bitrate of the output file to 64kbit/s:
- at example
-avconv -i input.avi -b 64k output.avi
- at end example
-
- at item
-To force the frame rate of the output file to 24 fps:
- at example
-avconv -i input.avi -r 24 output.avi
- at end example
-
- at item
-To force the frame rate of the input file (valid for raw formats only)
-to 1 fps and the frame rate of the output file to 24 fps:
- at example
-avconv -r 1 -i input.m2v -r 24 output.avi
- at end example
- at end itemize
-
-The format option may be needed for raw input files.
-
- at c man end DESCRIPTION
-
- at chapter Stream selection
- at c man begin STREAM SELECTION
-
-By default avconv tries to pick the "best" stream of each type present in input
-files and add them to each output file. For video, this means the highest
-resolution, for audio the highest channel count. For subtitle it's simply the
-first subtitle stream.
-
-You can disable some of those defaults by using @code{-vn/-an/-sn} options. For
-full manual control, use the @code{-map} option, which disables the defaults just
-described.
-
- at c man end STREAM SELECTION
-
- at chapter Options
- at c man begin OPTIONS
-
- at include avtools-common-opts.texi
-
- at section Main options
-
- at table @option
-
- at item -f @var{fmt} (@emph{input/output})
-Force input or output file format. The format is normally autodetected for input
-files and guessed from file extension for output files, so this option is not
-needed in most cases.
-
- at item -i @var{filename} (@emph{input})
-input file name
-
- at item -y (@emph{global})
-Overwrite output files without asking.
-
- at item -n (@emph{global})
-Do not overwrite output files but exit if file exists.
-
- at item -c[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
- at itemx -codec[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
-Select an encoder (when used before an output file) or a decoder (when used
-before an input file) for one or more streams. @var{codec} is the name of a
-decoder/encoder or a special value @code{copy} (output only) to indicate that
-the stream is not to be reencoded.
-
-For example
- at example
-avconv -i INPUT -map 0 -c:v libx264 -c:a copy OUTPUT
- at end example
-encodes all video streams with libx264 and copies all audio streams.
-
-For each stream, the last matching @code{c} option is applied, so
- at example
-avconv -i INPUT -map 0 -c copy -c:v:1 libx264 -c:a:137 libvorbis OUTPUT
- at end example
-will copy all the streams except the second video, which will be encoded with
-libx264, and the 138th audio, which will be encoded with libvorbis.
-
- at item -t @var{duration} (@emph{output})
-Stop writing the output after its duration reaches @var{duration}.
- at var{duration} may be a number in seconds, or in @code{hh:mm:ss[.xxx]} form.
-
- at item -fs @var{limit_size} (@emph{output})
-Set the file size limit.
-
- at item -ss @var{position} (@emph{input/output})
-When used as an input option (before @code{-i}), seeks in this input file to
- at var{position}. When used as an output option (before an output filename),
-decodes but discards input until the timestamps reach @var{position}. This is
-slower, but more accurate.
-
- at var{position} may be either in seconds or in @code{hh:mm:ss[.xxx]} form.
-
- at item -itsoffset @var{offset} (@emph{input})
-Set the input time offset in seconds.
- at code{[-]hh:mm:ss[.xxx]} syntax is also supported.
-The offset is added to the timestamps of the input files.
-Specifying a positive offset means that the corresponding
-streams are delayed by @var{offset} seconds.
-
- at item -metadata[:metadata_specifier] @var{key}=@var{value} (@emph{output,per-metadata})
-Set a metadata key/value pair.
-
-An optional @var{metadata_specifier} may be given to set metadata
-on streams or chapters. See @code{-map_metadata} documentation for
-details.
-
-This option overrides metadata set with @code{-map_metadata}. It is
-also possible to delete metadata by using an empty value.
-
-For example, for setting the title in the output file:
- at example
-avconv -i in.avi -metadata title="my title" out.flv
- at end example
-
-To set the language of the first audio stream:
- at example
-avconv -i INPUT -metadata:s:a:0 language=eng OUTPUT
- at end example
-
- at item -target @var{type} (@emph{output})
-Specify target file type (@code{vcd}, @code{svcd}, @code{dvd}, @code{dv},
- at code{dv50}). @var{type} may be prefixed with @code{pal-}, @code{ntsc-} or
- at code{film-} to use the corresponding standard. All the format options
-(bitrate, codecs, buffer sizes) are then set automatically. You can just type:
-
- at example
-avconv -i myfile.avi -target vcd /tmp/vcd.mpg
- at end example
-
-Nevertheless you can specify additional options as long as you know
-they do not conflict with the standard, as in:
-
- at example
-avconv -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg
- at end example
-
- at item -dframes @var{number} (@emph{output})
-Set the number of data frames to record. This is an alias for @code{-frames:d}.
-
- at item -frames[:@var{stream_specifier}] @var{framecount} (@emph{output,per-stream})
-Stop writing to the stream after @var{framecount} frames.
-
- at item -q[:@var{stream_specifier}] @var{q} (@emph{output,per-stream})
- at itemx -qscale[:@var{stream_specifier}] @var{q} (@emph{output,per-stream})
-Use fixed quality scale (VBR). The meaning of @var{q} is
-codec-dependent.
-
- at item -filter[:@var{stream_specifier}] @var{filter_graph} (@emph{output,per-stream})
- at var{filter_graph} is a description of the filter graph to apply to
-the stream. Use @code{-filters} to show all the available filters
-(including also sources and sinks).
- at item -pre[:@var{stream_specifier}] @var{preset_name} (@emph{output,per-stream})
-Specify the preset for matching stream(s).
-
- at item -stats (@emph{global})
-Print encoding progress/statistics. On by default.
-
- at item -attach @var{filename} (@emph{output})
-Add an attachment to the output file. This is supported by a few formats
-like Matroska for e.g. fonts used in rendering subtitles. Attachments
-are implemented as a specific type of stream, so this option will add
-a new stream to the file. It is then possible to use per-stream options
-on this stream in the usual way. Attachment streams created with this
-option will be created after all the other streams (i.e. those created
-with @code{-map} or automatic mappings).
-
-Note that for Matroska you also have to set the mimetype metadata tag:
- at example
-avconv -i INPUT -attach DejaVuSans.ttf -metadata:s:2 mimetype=application/x-truetype-font out.mkv
- at end example
-(assuming that the attachment stream will be third in the output file).
-
- at item -dump_attachment[:@var{stream_specifier}] @var{filename} (@emph{input,per-stream})
-Extract the matching attachment stream into a file named @var{filename}. If
- at var{filename} is empty, then the value of the @code{filename} metadata tag
-will be used.
-
-E.g. to extract the first attachment to a file named 'out.ttf':
- at example
-avconv -dump_attachment:t:0 out.ttf INPUT
- at end example
-To extract all attachments to files determined by the @code{filename} tag:
- at example
-avconv -dump_attachment:t "" INPUT
- at end example
-
-Technical note -- attachments are implemented as codec extradata, so this
-option can actually be used to extract extradata from any stream, not just
-attachments.
-
- at end table
-
- at section Video Options
-
- at table @option
- at item -vframes @var{number} (@emph{output})
-Set the number of video frames to record. This is an alias for @code{-frames:v}.
- at item -r[:@var{stream_specifier}] @var{fps} (@emph{input/output,per-stream})
-Set frame rate (Hz value, fraction or abbreviation), (default = 25).
- at item -s[:@var{stream_specifier}] @var{size} (@emph{input/output,per-stream})
-Set frame size. The format is @samp{wxh} (default - same as source).
-The following abbreviations are recognized:
- at table @samp
- at item sqcif
-128x96
- at item qcif
-176x144
- at item cif
-352x288
- at item 4cif
-704x576
- at item 16cif
-1408x1152
- at item qqvga
-160x120
- at item qvga
-320x240
- at item vga
-640x480
- at item svga
-800x600
- at item xga
-1024x768
- at item uxga
-1600x1200
- at item qxga
-2048x1536
- at item sxga
-1280x1024
- at item qsxga
-2560x2048
- at item hsxga
-5120x4096
- at item wvga
-852x480
- at item wxga
-1366x768
- at item wsxga
-1600x1024
- at item wuxga
-1920x1200
- at item woxga
-2560x1600
- at item wqsxga
-3200x2048
- at item wquxga
-3840x2400
- at item whsxga
-6400x4096
- at item whuxga
-7680x4800
- at item cga
-320x200
- at item ega
-640x350
- at item hd480
-852x480
- at item hd720
-1280x720
- at item hd1080
-1920x1080
- at end table
-
- at item -aspect[:@var{stream_specifier}] @var{aspect} (@emph{output,per-stream})
-Set the video display aspect ratio specified by @var{aspect}.
-
- at var{aspect} can be a floating point number string, or a string of the
-form @var{num}:@var{den}, where @var{num} and @var{den} are the
-numerator and denominator of the aspect ratio. For example "4:3",
-"16:9", "1.3333", and "1.7777" are valid argument values.
-
- at item -vn (@emph{output})
-Disable video recording.
- at item -bt @var{tolerance}
-Set video bitrate tolerance (in bits, default 4000k).
-Has a minimum value of: (target_bitrate/target_framerate).
-In 1-pass mode, bitrate tolerance specifies how far ratecontrol is
-willing to deviate from the target average bitrate value. This is
-not related to min/max bitrate. Lowering tolerance too much has
-an adverse effect on quality.
- at item -maxrate @var{bitrate}
-Set max video bitrate (in bit/s).
-Requires -bufsize to be set.
- at item -minrate @var{bitrate}
-Set min video bitrate (in bit/s).
-Most useful in setting up a CBR encode:
- at example
-avconv -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v
- at end example
-It is of little use elsewise.
- at item -bufsize @var{size}
-Set video buffer verifier buffer size (in bits).
- at item -vcodec @var{codec} (@emph{output})
-Set the video codec. This is an alias for @code{-codec:v}.
- at item -same_quant
-Use same quantizer as source (implies VBR).
-
-Note that this is NOT SAME QUALITY. Do not use this option unless you know you
-need it.
-
- at item -pass @var{n}
-Select the pass number (1 or 2). It is used to do two-pass
-video encoding. The statistics of the video are recorded in the first
-pass into a log file (see also the option -passlogfile),
-and in the second pass that log file is used to generate the video
-at the exact requested bitrate.
-On pass 1, you may just deactivate audio and set output to null,
-examples for Windows and Unix:
- at example
-avconv -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y NUL
-avconv -i foo.mov -c:v libxvid -pass 1 -an -f rawvideo -y /dev/null
- at end example
-
- at item -passlogfile @var{prefix} (@emph{global})
-Set two-pass log file name prefix to @var{prefix}, the default file name
-prefix is ``av2pass''. The complete file name will be
- at file{PREFIX-N.log}, where N is a number specific to the output
-stream.
-
- at item -vf @var{filter_graph} (@emph{output})
- at var{filter_graph} is a description of the filter graph to apply to
-the input video.
-Use the option "-filters" to show all the available filters (including
-also sources and sinks). This is an alias for @code{-filter:v}.
-
- at end table
-
- at section Advanced Video Options
-
- at table @option
- at item -pix_fmt[:@var{stream_specifier}] @var{format} (@emph{input/output,per-stream})
-Set pixel format. Use @code{-pix_fmts} to show all the supported
-pixel formats.
- at item -sws_flags @var{flags} (@emph{input/output})
-Set SwScaler flags.
- at item -g @var{gop_size}
-Set the group of pictures size.
- at item -vdt @var{n}
-Discard threshold.
- at item -qmin @var{q}
-minimum video quantizer scale (VBR)
- at item -qmax @var{q}
-maximum video quantizer scale (VBR)
- at item -qdiff @var{q}
-maximum difference between the quantizer scales (VBR)
- at item -qblur @var{blur}
-video quantizer scale blur (VBR) (range 0.0 - 1.0)
- at item -qcomp @var{compression}
-video quantizer scale compression (VBR) (default 0.5).
-Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0
-
- at item -lmin @var{lambda}
-minimum video lagrange factor (VBR)
- at item -lmax @var{lambda}
-max video lagrange factor (VBR)
- at item -mblmin @var{lambda}
-minimum macroblock quantizer scale (VBR)
- at item -mblmax @var{lambda}
-maximum macroblock quantizer scale (VBR)
-
-These four options (lmin, lmax, mblmin, mblmax) use 'lambda' units,
-but you may use the QP2LAMBDA constant to easily convert from 'q' units:
- at example
-avconv -i src.ext -lmax 21*QP2LAMBDA dst.ext
- at end example
-
- at item -rc_init_cplx @var{complexity}
-initial complexity for single pass encoding
- at item -b_qfactor @var{factor}
-qp factor between P- and B-frames
- at item -i_qfactor @var{factor}
-qp factor between P- and I-frames
- at item -b_qoffset @var{offset}
-qp offset between P- and B-frames
- at item -i_qoffset @var{offset}
-qp offset between P- and I-frames
- at item -rc_eq @var{equation}
-Set rate control equation (see section "Expression Evaluation")
-(default = @code{tex^qComp}).
-
-When computing the rate control equation expression, besides the
-standard functions defined in the section "Expression Evaluation", the
-following functions are available:
- at table @var
- at item bits2qp(bits)
- at item qp2bits(qp)
- at end table
-
-and the following constants are available:
- at table @var
- at item iTex
- at item pTex
- at item tex
- at item mv
- at item fCode
- at item iCount
- at item mcVar
- at item var
- at item isI
- at item isP
- at item isB
- at item avgQP
- at item qComp
- at item avgIITex
- at item avgPITex
- at item avgPPTex
- at item avgBPTex
- at item avgTex
- at end table
-
- at item -rc_override[:@var{stream_specifier}] @var{override} (@emph{output,per-stream})
-rate control override for specific intervals
- at item -me_method @var{method}
-Set motion estimation method to @var{method}.
-Available methods are (from lowest to best quality):
- at table @samp
- at item zero
-Try just the (0, 0) vector.
- at item phods
- at item log
- at item x1
- at item hex
- at item umh
- at item epzs
-(default method)
- at item full
-exhaustive search (slow and marginally better than epzs)
- at end table
-
- at item -er @var{n}
-Set error resilience to @var{n}.
- at table @samp
- at item 1
-FF_ER_CAREFUL (default)
- at item 2
-FF_ER_COMPLIANT
- at item 3
-FF_ER_AGGRESSIVE
- at item 4
-FF_ER_VERY_AGGRESSIVE
- at end table
-
- at item -ec @var{bit_mask}
-Set error concealment to @var{bit_mask}. @var{bit_mask} is a bit mask of
-the following values:
- at table @samp
- at item 1
-FF_EC_GUESS_MVS (default = enabled)
- at item 2
-FF_EC_DEBLOCK (default = enabled)
- at end table
-
- at item -bf @var{frames}
-Use 'frames' B-frames (supported for MPEG-1, MPEG-2 and MPEG-4).
- at item -mbd @var{mode}
-macroblock decision
- at table @samp
- at item 0
-FF_MB_DECISION_SIMPLE: Use mb_cmp (cannot change it yet in avconv).
- at item 1
-FF_MB_DECISION_BITS: Choose the one which needs the fewest bits.
- at item 2
-FF_MB_DECISION_RD: rate distortion
- at end table
-
- at item -bug @var{param}
-Work around encoder bugs that are not auto-detected.
- at item -strict @var{strictness}
-How strictly to follow the standards.
-
- at item -deinterlace
-Deinterlace pictures.
- at item -vstats
-Dump video coding statistics to @file{vstats_HHMMSS.log}.
- at item -vstats_file @var{file}
-Dump video coding statistics to @var{file}.
- at item -top[:@var{stream_specifier}] @var{n} (@emph{output,per-stream})
-top=1/bottom=0/auto=-1 field first
- at item -dc @var{precision}
-Intra_dc_precision.
- at item -vtag @var{fourcc/tag} (@emph{output})
-Force video tag/fourcc. This is an alias for @code{-tag:v}.
- at item -qphist (@emph{global})
-Show QP histogram.
- at item -force_key_frames[:@var{stream_specifier}] @var{time}[, at var{time}...] (@emph{output,per-stream})
-Force key frames at the specified timestamps, more precisely at the first
-frames after each specified time.
-This option can be useful to ensure that a seek point is present at a
-chapter mark or any other designated place in the output file.
-The timestamps must be specified in ascending order.
-
- at item -copyinkf[:@var{stream_specifier}] (@emph{output,per-stream})
-When doing stream copy, copy also non-key frames found at the
-beginning.
- at end table
-
- at section Audio Options
-
- at table @option
- at item -aframes @var{number} (@emph{output})
-Set the number of audio frames to record. This is an alias for @code{-frames:a}.
- at item -ar[:@var{stream_specifier}] @var{freq} (@emph{input/output,per-stream})
-Set the audio sampling frequency. For output streams it is set by
-default to the frequency of the corresponding input stream. For input
-streams this option only makes sense for audio grabbing devices and raw
-demuxers and is mapped to the corresponding demuxer options.
- at item -aq @var{q} (@emph{output})
-Set the audio quality (codec-specific, VBR). This is an alias for -q:a.
- at item -ac[:@var{stream_specifier}] @var{channels} (@emph{input/output,per-stream})
-Set the number of audio channels. For output streams it is set by
-default to the number of input audio channels. For input streams
-this option only makes sense for audio grabbing devices and raw demuxers
-and is mapped to the corresponding demuxer options.
- at item -an (@emph{output})
-Disable audio recording.
- at item -acodec @var{codec} (@emph{input/output})
-Set the audio codec. This is an alias for @code{-codec:a}.
- at item -sample_fmt[:@var{stream_specifier}] @var{sample_fmt} (@emph{output,per-stream})
-Set the audio sample format. Use @code{-sample_fmts} to get a list
-of supported sample formats.
- at end table
-
- at section Advanced Audio options:
-
- at table @option
- at item -atag @var{fourcc/tag} (@emph{output})
-Force audio tag/fourcc. This is an alias for @code{-tag:a}.
- at item -audio_service_type @var{type}
-Set the type of service that the audio stream contains.
- at table @option
- at item ma
-Main Audio Service (default)
- at item ef
-Effects
- at item vi
-Visually Impaired
- at item hi
-Hearing Impaired
- at item di
-Dialogue
- at item co
-Commentary
- at item em
-Emergency
- at item vo
-Voice Over
- at item ka
-Karaoke
- at end table
- at end table
-
- at section Subtitle options:
-
- at table @option
- at item -scodec @var{codec} (@emph{input/output})
-Set the subtitle codec. This is an alias for @code{-codec:s}.
- at item -sn (@emph{output})
-Disable subtitle recording.
- at end table
-
- at section Audio/Video grab options
-
- at table @option
- at item -isync (@emph{global})
-Synchronize read on input.
- at end table
-
- at section Advanced options
-
- at table @option
- at item -map [-]@var{input_file_id}[:@var{stream_specifier}][, at var{sync_file_id}[:@var{stream_specifier}]] (@emph{output})
-
-Designate one or more input streams as a source for the output file. Each input
-stream is identified by the input file index @var{input_file_id} and
-the input stream index @var{input_stream_id} within the input
-file. Both indices start at 0. If specified,
- at var{sync_file_id}:@var{stream_specifier} sets which input stream
-is used as a presentation sync reference.
-
-The first @code{-map} option on the command line specifies the
-source for output stream 0, the second @code{-map} option specifies
-the source for output stream 1, etc.
-
-A @code{-} character before the stream identifier creates a "negative" mapping.
-It disables matching streams from already created mappings.
-
-For example, to map ALL streams from the first input file to output
- at example
-avconv -i INPUT -map 0 output
- at end example
-
-For example, if you have two audio streams in the first input file,
-these streams are identified by "0:0" and "0:1". You can use
- at code{-map} to select which streams to place in an output file. For
-example:
- at example
-avconv -i INPUT -map 0:1 out.wav
- at end example
-will map the input stream in @file{INPUT} identified by "0:1" to
-the (single) output stream in @file{out.wav}.
-
-For example, to select the stream with index 2 from input file
- at file{a.mov} (specified by the identifier "0:2"), and stream with
-index 6 from input @file{b.mov} (specified by the identifier "1:6"),
-and copy them to the output file @file{out.mov}:
- at example
-avconv -i a.mov -i b.mov -c copy -map 0:2 -map 1:6 out.mov
- at end example
-
-To select all video and the third audio stream from an input file:
- at example
-avconv -i INPUT -map 0:v -map 0:a:2 OUTPUT
- at end example
-
-To map all the streams except the second audio, use negative mappings
- at example
-avconv -i INPUT -map 0 -map -0:a:1 OUTPUT
- at end example
-
-Note that using this option disables the default mappings for this output file.
-
- at item -map_metadata[:@var{metadata_spec_out}] @var{infile}[:@var{metadata_spec_in}] (@emph{output,per-metadata})
-Set metadata information of the next output file from @var{infile}. Note that
-those are file indices (zero-based), not filenames.
-Optional @var{metadata_spec_in/out} parameters specify, which metadata to copy.
-A metadata specifier can have the following forms:
- at table @option
- at item @var{g}
-global metadata, i.e. metadata that applies to the whole file
-
- at item @var{s}[:@var{stream_spec}]
-per-stream metadata. @var{stream_spec} is a stream specifier as described
-in the @ref{Stream specifiers} chapter. In an input metadata specifier, the first
-matching stream is copied from. In an output metadata specifier, all matching
-streams are copied to.
-
- at item @var{c}:@var{chapter_index}
-per-chapter metadata. @var{chapter_index} is the zero-based chapter index.
-
- at item @var{p}:@var{program_index}
-per-program metadata. @var{program_index} is the zero-based program index.
- at end table
-If metadata specifier is omitted, it defaults to global.
-
-By default, global metadata is copied from the first input file,
-per-stream and per-chapter metadata is copied along with streams/chapters. These
-default mappings are disabled by creating any mapping of the relevant type. A negative
-file index can be used to create a dummy mapping that just disables automatic copying.
-
-For example to copy metadata from the first stream of the input file to global metadata
-of the output file:
- at example
-avconv -i in.ogg -map_metadata 0:s:0 out.mp3
- at end example
-
-To do the reverse, i.e. copy global metadata to all audio streams:
- at example
-avconv -i in.mkv -map_metadata:s:a 0:g out.mkv
- at end example
-Note that simple @code{0} would work as well in this example, since global
-metadata is assumed by default.
-
- at item -map_chapters @var{input_file_index} (@emph{output})
-Copy chapters from input file with index @var{input_file_index} to the next
-output file. If no chapter mapping is specified, then chapters are copied from
-the first input file with at least one chapter. Use a negative file index to
-disable any chapter copying.
- at item -debug
-Print specific debug info.
- at item -benchmark (@emph{global})
-Show benchmarking information at the end of an encode.
-Shows CPU time used and maximum memory consumption.
-Maximum memory consumption is not supported on all systems,
-it will usually display as 0 if not supported.
- at item -timelimit @var{duration} (@emph{global})
-Exit after avconv has been running for @var{duration} seconds.
- at item -dump (@emph{global})
-Dump each input packet to stderr.
- at item -hex (@emph{global})
-When dumping packets, also dump the payload.
- at item -ps @var{size}
-Set RTP payload size in bytes.
- at item -re (@emph{input})
-Read input at native frame rate. Mainly used to simulate a grab device.
- at item -threads @var{count}
-Thread count.
- at item -vsync @var{parameter}
-Video sync method.
-
- at table @option
- at item passthrough
-Each frame is passed with its timestamp from the demuxer to the muxer.
- at item cfr
-Frames will be duplicated and dropped to achieve exactly the requested
-constant framerate.
- at item vfr
-Frames are passed through with their timestamp or dropped so as to
-prevent 2 frames from having the same timestamp.
- at item auto
-Chooses between 1 and 2 depending on muxer capabilities. This is the
-default method.
- at end table
-
-With -map you can select from which stream the timestamps should be
-taken. You can leave either video or audio unchanged and sync the
-remaining stream(s) to the unchanged one.
-
- at item -async @var{samples_per_second}
-Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps,
-the parameter is the maximum samples per second by which the audio is changed.
--async 1 is a special case where only the start of the audio stream is corrected
-without any later correction.
- at item -copyts
-Copy timestamps from input to output.
- at item -copytb
-Copy input stream time base from input to output when stream copying.
- at item -shortest
-Finish encoding when the shortest input stream ends.
- at item -dts_delta_threshold
-Timestamp discontinuity delta threshold.
- at item -muxdelay @var{seconds} (@emph{input})
-Set the maximum demux-decode delay.
- at item -muxpreload @var{seconds} (@emph{input})
-Set the initial demux-decode delay.
- at item -streamid @var{output-stream-index}:@var{new-value} (@emph{output})
-Assign a new stream-id value to an output stream. This option should be
-specified prior to the output filename to which it applies.
-For the situation where multiple output files exist, a streamid
-may be reassigned to a different value.
-
-For example, to set the stream 0 PID to 33 and the stream 1 PID to 36 for
-an output mpegts file:
- at example
-avconv -i infile -streamid 0:33 -streamid 1:36 out.ts
- at end example
-
- at item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream})
-Set bitstream filters for matching streams. @var{bistream_filters} is
-a comma-separated list of bitstream filters. Use the @code{-bsfs} option
-to get the list of bitstream filters.
- at example
-avconv -i h264.mp4 -c:v copy -vbsf h264_mp4toannexb -an out.h264
- at end example
- at example
-avconv -i file.mov -an -vn -sbsf mov2textsub -c:s copy -f rawvideo sub.txt
- at end example
-
- at item -tag[:@var{stream_specifier}] @var{codec_tag} (@emph{output,per-stream})
-Force a tag/fourcc for matching streams.
- at end table
- at c man end OPTIONS
-
- at chapter Tips
- at c man begin TIPS
-
- at itemize
- at item
-For streaming at very low bitrate application, use a low frame rate
-and a small GOP size. This is especially true for RealVideo where
-the Linux player does not seem to be very fast, so it can miss
-frames. An example is:
-
- at example
-avconv -g 3 -r 3 -t 10 -b 50k -s qcif -f rv10 /tmp/b.rm
- at end example
-
- at item
-The parameter 'q' which is displayed while encoding is the current
-quantizer. The value 1 indicates that a very good quality could
-be achieved. The value 31 indicates the worst quality. If q=31 appears
-too often, it means that the encoder cannot compress enough to meet
-your bitrate. You must either increase the bitrate, decrease the
-frame rate or decrease the frame size.
-
- at item
-If your computer is not fast enough, you can speed up the
-compression at the expense of the compression ratio. You can use
-'-me zero' to speed up motion estimation, and '-intra' to disable
-motion estimation completely (you have only I-frames, which means it
-is about as good as JPEG compression).
-
- at item
-To have very low audio bitrates, reduce the sampling frequency
-(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
-
- at item
-To have a constant quality (but a variable bitrate), use the option
-'-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst
-quality).
-
- at end itemize
- at c man end TIPS
-
- at chapter Examples
- at c man begin EXAMPLES
-
- at section Preset files
-
-A preset file contains a sequence of @var{option=value} pairs, one for
-each line, specifying a sequence of options which can be specified also on
-the command line. Lines starting with the hash ('#') character are ignored and
-are used to provide comments. Empty lines are also ignored. Check the
- at file{presets} directory in the Libav source tree for examples.
-
-Preset files are specified with the @code{pre} option, this option takes a
-preset name as input. Avconv searches for a file named @var{preset_name}.avpreset in
-the directories @file{$AVCONV_DATADIR} (if set), and @file{$HOME/.avconv}, and in
-the data directory defined at configuration time (usually @file{$PREFIX/share/avconv})
-in that order. For example, if the argument is @code{libx264-max}, it will
-search for the file @file{libx264-max.avpreset}.
-
- at section Video and Audio grabbing
-
-If you specify the input format and device then avconv can grab video
-and audio directly.
-
- at example
-avconv -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 /tmp/out.mpg
- at end example
-
-Note that you must activate the right video source and channel before
-launching avconv with any TV viewer such as
- at uref{http://linux.bytesex.org/xawtv/, xawtv} by Gerd Knorr. You also
-have to set the audio recording levels correctly with a
-standard mixer.
-
- at section X11 grabbing
-
-Grab the X11 display with avconv via
-
- at example
-avconv -f x11grab -s cif -r 25 -i :0.0 /tmp/out.mpg
- at end example
-
-0.0 is display.screen number of your X11 server, same as
-the DISPLAY environment variable.
-
- at example
-avconv -f x11grab -s cif -r 25 -i :0.0+10,20 /tmp/out.mpg
- at end example
-
-0.0 is display.screen number of your X11 server, same as the DISPLAY environment
-variable. 10 is the x-offset and 20 the y-offset for the grabbing.
-
- at section Video and Audio file format conversion
-
-Any supported file format and protocol can serve as input to avconv:
-
-Examples:
- at itemize
- at item
-You can use YUV files as input:
-
- at example
-avconv -i /tmp/test%d.Y /tmp/out.mpg
- at end example
-
-It will use the files:
- at example
-/tmp/test0.Y, /tmp/test0.U, /tmp/test0.V,
-/tmp/test1.Y, /tmp/test1.U, /tmp/test1.V, etc...
- at end example
-
-The Y files use twice the resolution of the U and V files. They are
-raw files, without header. They can be generated by all decent video
-decoders. You must specify the size of the image with the @option{-s} option
-if avconv cannot guess it.
-
- at item
-You can input from a raw YUV420P file:
-
- at example
-avconv -i /tmp/test.yuv /tmp/out.avi
- at end example
-
-test.yuv is a file containing raw YUV planar data. Each frame is composed
-of the Y plane followed by the U and V planes at half vertical and
-horizontal resolution.
-
- at item
-You can output to a raw YUV420P file:
-
- at example
-avconv -i mydivx.avi hugefile.yuv
- at end example
-
- at item
-You can set several input files and output files:
-
- at example
-avconv -i /tmp/a.wav -s 640x480 -i /tmp/a.yuv /tmp/a.mpg
- at end example
-
-Converts the audio file a.wav and the raw YUV video file a.yuv
-to MPEG file a.mpg.
-
- at item
-You can also do audio and video conversions at the same time:
-
- at example
-avconv -i /tmp/a.wav -ar 22050 /tmp/a.mp2
- at end example
-
-Converts a.wav to MPEG audio at 22050 Hz sample rate.
-
- at item
-You can encode to several formats at the same time and define a
-mapping from input stream to output streams:
-
- at example
-avconv -i /tmp/a.wav -map 0:a -b 64k /tmp/a.mp2 -map 0:a -b 128k /tmp/b.mp2
- at end example
-
-Converts a.wav to a.mp2 at 64 kbits and to b.mp2 at 128 kbits. '-map
-file:index' specifies which input stream is used for each output
-stream, in the order of the definition of output streams.
-
- at item
-You can transcode decrypted VOBs:
-
- at example
-avconv -i snatch_1.vob -f avi -c:v mpeg4 -b:v 800k -g 300 -bf 2 -c:a libmp3lame -b:a 128k snatch.avi
- at end example
-
-This is a typical DVD ripping example; the input is a VOB file, the
-output an AVI file with MPEG-4 video and MP3 audio. Note that in this
-command we use B-frames so the MPEG-4 stream is DivX5 compatible, and
-GOP size is 300 which means one intra frame every 10 seconds for 29.97fps
-input video. Furthermore, the audio stream is MP3-encoded so you need
-to enable LAME support by passing @code{--enable-libmp3lame} to configure.
-The mapping is particularly useful for DVD transcoding
-to get the desired audio language.
-
-NOTE: To see the supported input formats, use @code{avconv -formats}.
-
- at item
-You can extract images from a video, or create a video from many images:
-
-For extracting images from a video:
- at example
-avconv -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg
- at end example
-
-This will extract one video frame per second from the video and will
-output them in files named @file{foo-001.jpeg}, @file{foo-002.jpeg},
-etc. Images will be rescaled to fit the new WxH values.
-
-If you want to extract just a limited number of frames, you can use the
-above command in combination with the -vframes or -t option, or in
-combination with -ss to start extracting from a certain point in time.
-
-For creating a video from many images:
- at example
-avconv -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
- at end example
-
-The syntax @code{foo-%03d.jpeg} specifies to use a decimal number
-composed of three digits padded with zeroes to express the sequence
-number. It is the same syntax supported by the C printf function, but
-only formats accepting a normal integer are suitable.
-
- at item
-You can put many streams of the same type in the output:
-
- at example
-avconv -i test1.avi -i test2.avi -map 0.3 -map 0.2 -map 0.1 -map 0.0 -c copy test12.nut
- at end example
-
-The resulting output file @file{test12.avi} will contain first four streams from
-the input file in reverse order.
-
- at end itemize
- at c man end EXAMPLES
-
- at include eval.texi
- at include encoders.texi
- at include demuxers.texi
- at include muxers.texi
- at include indevs.texi
- at include outdevs.texi
- at include protocols.texi
- at include bitstream_filters.texi
- at include filters.texi
- at include metadata.texi
-
- at ignore
-
- at setfilename avconv
- at settitle avconv video converter
-
- at c man begin SEEALSO
-ffplay(1), ffprobe(1), ffserver(1) and the FFmpeg HTML documentation
-
- at c man end
-
- at c man begin AUTHORS
-The Libav developers
- at c man end
-
- at end ignore
-
- at bye
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