[FFmpeg-cvslog] Merge commit '01348e411f962f5e4605d649fc9a47a54587ba8e'

James Almer git at videolan.org
Fri Mar 31 22:47:37 EEST 2017


ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Fri Mar 31 16:46:00 2017 -0300| [10eb3259a65d664df8103e03b5d922b439cd7b07] | committer: James Almer

Merge commit '01348e411f962f5e4605d649fc9a47a54587ba8e'

* commit '01348e411f962f5e4605d649fc9a47a54587ba8e':
  avconv_opt: Consistently iterate through hwaccels array in all cases

Merged-by: James Almer <jamrial at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=10eb3259a65d664df8103e03b5d922b439cd7b07
---

 ffmpeg_opt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index ffe1abd..d1fe874 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -185,7 +185,7 @@ static int show_hwaccels(void *optctx, const char *opt, const char *arg)
     int i;
 
     printf("Hardware acceleration methods:\n");
-    for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
+    for (i = 0; hwaccels[i].name; i++) {
         printf("%s\n", hwaccels[i].name);
     }
     printf("\n");


======================================================================

diff --cc ffmpeg_opt.c
index ffe1abd,0000000..d1fe874
mode 100644,000000..100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@@ -1,3667 -1,0 +1,3667 @@@
 +/*
 + * ffmpeg option parsing
 + *
 + * 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 <stdint.h>
 +
 +#include "ffmpeg.h"
 +#include "cmdutils.h"
 +
 +#include "libavformat/avformat.h"
 +
 +#include "libavcodec/avcodec.h"
 +
 +#include "libavfilter/avfilter.h"
 +
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/avutil.h"
 +#include "libavutil/channel_layout.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/pixfmt.h"
 +
 +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 +
 +#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);\
 +    }\
 +}
 +
 +#define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
 +{\
 +    int i;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if (!strcmp(spec, mediatype))\
 +            outvar = o->name[i].u.type;\
 +    }\
 +}
 +
 +const HWAccel hwaccels[] = {
 +#if HAVE_VDPAU_X11
 +    { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
 +#endif
 +#if HAVE_DXVA2_LIB
 +    { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
 +#endif
 +#if CONFIG_VDA
 +    { "vda",   videotoolbox_init,   HWACCEL_VDA,   AV_PIX_FMT_VDA },
 +#endif
 +#if CONFIG_VIDEOTOOLBOX
 +    { "videotoolbox",   videotoolbox_init,   HWACCEL_VIDEOTOOLBOX,   AV_PIX_FMT_VIDEOTOOLBOX },
 +#endif
 +#if CONFIG_LIBMFX
 +    { "qsv",   qsv_init,   HWACCEL_QSV,   AV_PIX_FMT_QSV },
 +#endif
 +#if CONFIG_VAAPI
 +    { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
 +#endif
 +#if CONFIG_CUVID
 +    { "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA },
 +#endif
 +    { 0 },
 +};
 +int hwaccel_lax_profile_check = 0;
 +AVBufferRef *hw_device_ctx;
 +
 +char *vstats_filename;
 +char *sdp_filename;
 +
 +float audio_drift_threshold = 0.1;
 +float dts_delta_threshold   = 10;
 +float dts_error_threshold   = 3600*30;
 +
 +int audio_volume      = 256;
 +int audio_sync_method = 0;
 +int video_sync_method = VSYNC_AUTO;
 +float frame_drop_threshold = 0;
 +int do_deinterlace    = 0;
 +int do_benchmark      = 0;
 +int do_benchmark_all  = 0;
 +int do_hex_dump       = 0;
 +int do_pkt_dump       = 0;
 +int copy_ts           = 0;
 +int start_at_zero     = 0;
 +int copy_tb           = -1;
 +int debug_ts          = 0;
 +int exit_on_error     = 0;
 +int abort_on_flags    = 0;
 +int print_stats       = -1;
 +int qp_hist           = 0;
 +int stdin_interaction = 1;
 +int frame_bits_per_raw_sample = 0;
 +float max_error_rate  = 2.0/3;
 +int filter_nbthreads = 0;
 +int filter_complex_nbthreads = 0;
 +int vstats_version = 2;
 +
 +
 +static int intra_only         = 0;
 +static int file_overwrite     = 0;
 +static int no_file_overwrite  = 0;
 +static int do_psnr            = 0;
 +static int input_sync;
 +static int override_ffserver  = 0;
 +static int input_stream_potentially_available = 0;
 +static int ignore_unknown_streams = 0;
 +static int copy_unknown_streams = 0;
 +
 +static void uninit_options(OptionsContext *o)
 +{
 +    const OptionDef *po = options;
 +    int i;
 +
 +    /* 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++;
 +    }
 +
 +    for (i = 0; i < o->nb_stream_maps; i++)
 +        av_freep(&o->stream_maps[i].linklabel);
 +    av_freep(&o->stream_maps);
 +    av_freep(&o->audio_channel_maps);
 +    av_freep(&o->streamid_map);
 +    av_freep(&o->attachments);
 +}
 +
 +static void init_options(OptionsContext *o)
 +{
 +    memset(o, 0, sizeof(*o));
 +
 +    o->stop_time = INT64_MAX;
 +    o->mux_max_delay  = 0.7;
 +    o->start_time     = AV_NOPTS_VALUE;
 +    o->start_time_eof = AV_NOPTS_VALUE;
 +    o->recording_time = INT64_MAX;
 +    o->limit_filesize = UINT64_MAX;
 +    o->chapters_input_file = INT_MAX;
 +    o->accurate_seek  = 1;
 +}
 +
 +static int show_hwaccels(void *optctx, const char *opt, const char *arg)
 +{
 +    int i;
 +
 +    printf("Hardware acceleration methods:\n");
-     for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
++    for (i = 0; hwaccels[i].name; i++) {
 +        printf("%s\n", hwaccels[i].name);
 +    }
 +    printf("\n");
 +    return 0;
 +}
 +
 +/* return a copy of the input with the stream specifiers removed from the keys */
 +static AVDictionary *strip_specifiers(AVDictionary *dict)
 +{
 +    AVDictionaryEntry *e = NULL;
 +    AVDictionary    *ret = NULL;
 +
 +    while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        char *p = strchr(e->key, ':');
 +
 +        if (p)
 +            *p = 0;
 +        av_dict_set(&ret, e->key, e->value, 0);
 +        if (p)
 +            *p = ':';
 +    }
 +    return ret;
 +}
 +
 +static int opt_abort_on(void *optctx, const char *opt, const char *arg)
 +{
 +    static const AVOption opts[] = {
 +        { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
 +        { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
 +        { NULL },
 +    };
 +    static const AVClass class = {
 +        .class_name = "",
 +        .item_name  = av_default_item_name,
 +        .option     = opts,
 +        .version    = LIBAVUTIL_VERSION_INT,
 +    };
 +    const AVClass *pclass = &class;
 +
 +    return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
 +}
 +
 +static int opt_sameq(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
 +           "If you are looking for an option to preserve the quality (which is not "
 +           "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
 +           opt, opt);
 +    return AVERROR(EINVAL);
 +}
 +
 +static int opt_video_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
 +    return opt_default(optctx, "channel", arg);
 +}
 +
 +static int opt_video_standard(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
 +    return opt_default(optctx, "standard", arg);
 +}
 +
 +static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:a", arg, options);
 +}
 +
 +static int opt_video_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:v", arg, options);
 +}
 +
 +static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:s", arg, options);
 +}
 +
 +static int opt_data_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:d", arg, options);
 +}
 +
 +static int opt_map(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    StreamMap *m = NULL;
 +    int i, negative = 0, file_idx;
 +    int sync_file_idx = -1, sync_stream_idx = 0;
 +    char *p, *sync;
 +    char *map;
 +    char *allow_unused;
 +
 +    if (*arg == '-') {
 +        negative = 1;
 +        arg++;
 +    }
 +    map = av_strdup(arg);
 +    if (!map)
 +        return AVERROR(ENOMEM);
 +
 +    /* 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);
 +        }
 +    }
 +
 +
 +    if (map[0] == '[') {
 +        /* this mapping refers to lavfi output */
 +        const char *c = map + 1;
 +        GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 +        m = &o->stream_maps[o->nb_stream_maps - 1];
 +        m->linklabel = av_get_token(&c, "]");
 +        if (!m->linklabel) {
 +            av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
 +            exit_program(1);
 +        }
 +    } else {
 +        if (allow_unused = strchr(map, '?'))
 +            *allow_unused = 0;
 +        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;
 +                GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 +                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) {
 +        if (allow_unused) {
 +            av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
 +                                       "To ignore this, add a trailing '?' to the map.\n", arg);
 +            exit_program(1);
 +        }
 +    }
 +
 +    av_freep(&map);
 +    return 0;
 +}
 +
 +static int opt_attach(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    GROW_ARRAY(o->attachments, o->nb_attachments);
 +    o->attachments[o->nb_attachments - 1] = arg;
 +    return 0;
 +}
 +
 +static int opt_map_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    int n;
 +    AVStream *st;
 +    AudioChannelMap *m;
 +
 +    GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
 +    m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
 +
 +    /* muted channel syntax */
 +    n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
 +    if ((n == 1 || n == 3) && m->channel_idx == -1) {
 +        m->file_idx = m->stream_idx = -1;
 +        if (n == 1)
 +            m->ofile_idx = m->ostream_idx = -1;
 +        return 0;
 +    }
 +
 +    /* normal syntax */
 +    n = sscanf(arg, "%d.%d.%d:%d.%d",
 +               &m->file_idx,  &m->stream_idx, &m->channel_idx,
 +               &m->ofile_idx, &m->ostream_idx);
 +
 +    if (n != 3 && n != 5) {
 +        av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
 +               "[file.stream.channel|-1][:syncfile:syncstream]\n");
 +        exit_program(1);
 +    }
 +
 +    if (n != 5) // only file.stream.channel specified
 +        m->ofile_idx = m->ostream_idx = -1;
 +
 +    /* check input */
 +    if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
 +               m->file_idx);
 +        exit_program(1);
 +    }
 +    if (m->stream_idx < 0 ||
 +        m->stream_idx >= input_files[m->file_idx]->nb_streams) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
 +    if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
 +               m->file_idx, m->stream_idx, m->channel_idx);
 +        exit_program(1);
 +    }
 +    return 0;
 +}
 +
 +static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
 +{
 +    av_free(sdp_filename);
 +    sdp_filename = av_strdup(arg);
 +    return 0;
 +}
 +
 +#if CONFIG_VAAPI
 +static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
 +{
 +    int err;
 +    err = vaapi_device_init(arg);
 +    if (err < 0)
 +        exit_program(1);
 +    return 0;
 +}
 +#endif
 +
 +/**
 + * Parse a metadata specifier passed as 'arg' parameter.
 + * @param arg  metadata string to parse
 + * @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 = NULL;
 +    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 (!ic) {
 +        if (type_out == 'g' || !*outspec)
 +            o->metadata_global_manual = 1;
 +        if (type_out == 's' || !*outspec)
 +            o->metadata_streams_manual = 1;
 +        if (type_out == 'c' || !*outspec)
 +            o->metadata_chapters_manual = 1;
 +        return 0;
 +    }
 +
 +    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;
 +
 +    /* ic is NULL when just disabling automatic mappings */
 +    if (!ic)
 +        return 0;
 +
 +#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;\
 +        case 's':\
 +            break; /* handled separately below */ \
 +        default: av_assert0(0);\
 +        }\
 +
 +    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 int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char buf[128];
 +    int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
 +    struct tm time = *gmtime((time_t*)&recording_timestamp);
 +    if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
 +        return -1;
 +    parse_option(o, "metadata", buf, options);
 +
 +    av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 +                                 "tag instead.\n", opt);
 +    return 0;
 +}
 +
 +static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 +{
 +    const AVCodecDescriptor *desc;
 +    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 && (desc = avcodec_descriptor_get_by_name(name))) {
 +        codec = encoder ? avcodec_find_encoder(desc->id) :
 +                          avcodec_find_decoder(desc->id);
 +        if (codec)
 +            av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
 +                   codec_string, codec->name, desc->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->codecpar->codec_type, 0);
 +        st->codecpar->codec_id = codec->id;
 +        return codec;
 +    } else
 +        return avcodec_find_decoder(st->codecpar->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, ret;
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        AVCodecParameters *par = st->codecpar;
 +        InputStream *ist = av_mallocz(sizeof(*ist));
 +        char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
 +        char *hwaccel_output_format = NULL;
 +        char *codec_tag = NULL;
 +        char *next;
 +        char *discard_str = NULL;
 +        const AVClass *cc = avcodec_get_class();
 +        const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
 +
 +        if (!ist)
 +            exit_program(1);
 +
 +        GROW_ARRAY(input_streams, nb_input_streams);
 +        input_streams[nb_input_streams - 1] = ist;
 +
 +        ist->st = st;
 +        ist->file_index = nb_input_files;
 +        ist->discard = 1;
 +        st->discard  = AVDISCARD_ALL;
 +        ist->nb_samples = 0;
 +        ist->min_pts = INT64_MAX;
 +        ist->max_pts = INT64_MIN;
 +
 +        ist->ts_scale = 1.0;
 +        MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 +
 +        ist->autorotate = 1;
 +        MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
 +        if (codec_tag) {
 +            uint32_t tag = strtol(codec_tag, &next, 0);
 +            if (*next)
 +                tag = AV_RL32(codec_tag);
 +            st->codecpar->codec_tag = tag;
 +        }
 +
 +        ist->dec = choose_decoder(o, ic, st);
 +        ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
 +
 +        ist->reinit_filters = -1;
 +        MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
 +        ist->user_set_discard = AVDISCARD_NONE;
 +        if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
 +                    discard_str);
 +            exit_program(1);
 +        }
 +
 +        ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
 +
 +        ist->dec_ctx = avcodec_alloc_context3(ist->dec);
 +        if (!ist->dec_ctx) {
 +            av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
 +            exit_program(1);
 +        }
 +
 +        ret = avcodec_parameters_to_context(ist->dec_ctx, par);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
 +            exit_program(1);
 +        }
 +
 +        switch (par->codec_type) {
 +        case AVMEDIA_TYPE_VIDEO:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(par->codec_id);
 +#if FF_API_EMU_EDGE
 +            if (av_codec_get_lowres(st->codec)) {
 +                av_codec_set_lowres(ist->dec_ctx, av_codec_get_lowres(st->codec));
 +                ist->dec_ctx->width  = st->codec->width;
 +                ist->dec_ctx->height = st->codec->height;
 +                ist->dec_ctx->coded_width  = st->codec->coded_width;
 +                ist->dec_ctx->coded_height = st->codec->coded_height;
 +                ist->dec_ctx->flags |= CODEC_FLAG_EMU_EDGE;
 +            }
 +#endif
 +
 +            // avformat_find_stream_info() doesn't set this for us anymore.
 +            ist->dec_ctx->framerate = st->avg_frame_rate;
 +
 +            MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
 +            if (framerate && av_parse_video_rate(&ist->framerate,
 +                                                 framerate) < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
 +                       framerate);
 +                exit_program(1);
 +            }
 +
 +            ist->top_field_first = -1;
 +            MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
 +
 +            MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
 +            if (hwaccel) {
 +                if (!strcmp(hwaccel, "none"))
 +                    ist->hwaccel_id = HWACCEL_NONE;
 +                else if (!strcmp(hwaccel, "auto"))
 +                    ist->hwaccel_id = HWACCEL_AUTO;
 +                else {
 +                    int i;
 +                    for (i = 0; hwaccels[i].name; i++) {
 +                        if (!strcmp(hwaccels[i].name, hwaccel)) {
 +                            ist->hwaccel_id = hwaccels[i].id;
 +                            break;
 +                        }
 +                    }
 +
 +                    if (!ist->hwaccel_id) {
 +                        av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
 +                               hwaccel);
 +                        av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
 +                        for (i = 0; hwaccels[i].name; i++)
 +                            av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
 +                        av_log(NULL, AV_LOG_FATAL, "\n");
 +                        exit_program(1);
 +                    }
 +                }
 +            }
 +
 +            MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
 +            if (hwaccel_device) {
 +                ist->hwaccel_device = av_strdup(hwaccel_device);
 +                if (!ist->hwaccel_device)
 +                    exit_program(1);
 +            }
 +
 +            MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
 +                                 hwaccel_output_format, ic, st);
 +            if (hwaccel_output_format) {
 +                ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
 +                if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
 +                    av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
 +                           "format: %s", hwaccel_output_format);
 +                }
 +            } else {
 +                ist->hwaccel_output_format = AV_PIX_FMT_NONE;
 +            }
 +
 +            ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
 +
 +            break;
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->guess_layout_max = INT_MAX;
 +            MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
 +            guess_input_channel_layout(ist);
 +            break;
 +        case AVMEDIA_TYPE_DATA:
 +        case AVMEDIA_TYPE_SUBTITLE: {
 +            char *canvas_size = NULL;
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(par->codec_id);
 +            MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
 +            MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
 +            if (canvas_size &&
 +                av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
 +                exit_program(1);
 +            }
 +            break;
 +        }
 +        case AVMEDIA_TYPE_ATTACHMENT:
 +        case AVMEDIA_TYPE_UNKNOWN:
 +            break;
 +        default:
 +            abort();
 +        }
 +
 +        ret = avcodec_parameters_from_context(par, ist->dec_ctx);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
 +            exit_program(1);
 +        }
 +    }
 +}
 +
 +static void assert_file_overwrite(const char *filename)
 +{
 +    if (file_overwrite && no_file_overwrite) {
 +        fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
 +        exit_program(1);
 +    }
 +
 +    if (!file_overwrite) {
 +        const char *proto_name = avio_find_protocol_name(filename);
 +        if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
 +            if (stdin_interaction && !no_file_overwrite) {
 +                fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
 +                fflush(stderr);
 +                term_exit();
 +                signal(SIGINT, SIG_DFL);
 +                if (!read_yesno()) {
 +                    av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
 +                    exit_program(1);
 +                }
 +                term_init();
 +            }
 +            else {
 +                av_log(NULL, AV_LOG_FATAL, "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->codecpar->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->codecpar->extradata, st->codecpar->extradata_size);
 +    avio_flush(out);
 +    avio_close(out);
 +}
 +
 +static int open_input_file(OptionsContext *o, const char *filename)
 +{
 +    InputFile *f;
 +    AVFormatContext *ic;
 +    AVInputFormat *file_iformat = NULL;
 +    int err, i, ret;
 +    int64_t timestamp;
 +    AVDictionary **opts;
 +    AVDictionary *unused_opts = NULL;
 +    AVDictionaryEntry *e = NULL;
 +    int orig_nb_streams;                     // number of streams before avformat_find_stream_info
 +    char *   video_codec_name = NULL;
 +    char *   audio_codec_name = NULL;
 +    char *subtitle_codec_name = NULL;
 +    char *    data_codec_name = NULL;
 +    int scan_all_pmts_set = 0;
 +
 +    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:";
 +
 +    stdin_interaction &= 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);
 +    }
 +    ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
 +    if (o->nb_audio_sample_rate) {
 +        av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
 +    }
 +    if (o->nb_audio_channels) {
 +        /* because we set audio_channels based on both the "ac" and
 +         * "channel_layout" options, we need to check that the specified
 +         * demuxer actually has the "channels" option before setting it */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
 +        }
 +    }
 +    if (o->nb_frame_rates) {
 +        /* set the format-level framerate option;
 +         * this is important for video grabbers, e.g. x11 */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            av_dict_set(&o->g->format_opts, "framerate",
 +                        o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
 +        }
 +    }
 +    if (o->nb_frame_sizes) {
 +        av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_pix_fmts)
 +        av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
 +
 +    MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
 +    MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
 +    MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
 +    MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
 +
 +    ic->video_codec_id   = video_codec_name ?
 +        find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->audio_codec_id   = audio_codec_name ?
 +        find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->subtitle_codec_id= subtitle_codec_name ?
 +        find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
 +    ic->data_codec_id    = data_codec_name ?
 +        find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0)->id : AV_CODEC_ID_NONE;
 +
 +    if (video_codec_name)
 +        av_format_set_video_codec   (ic, find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0));
 +    if (audio_codec_name)
 +        av_format_set_audio_codec   (ic, find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0));
 +    if (subtitle_codec_name)
 +        av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
 +    if (data_codec_name)
 +        av_format_set_data_codec(ic, find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0));
 +
 +    ic->flags |= AVFMT_FLAG_NONBLOCK;
 +    ic->interrupt_callback = int_cb;
 +
 +    if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
 +        av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
 +        scan_all_pmts_set = 1;
 +    }
 +    /* open the input file with generic avformat function */
 +    err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
 +    if (err < 0) {
 +        print_error(filename, err);
 +        if (err == AVERROR_PROTOCOL_NOT_FOUND)
 +            av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
 +        exit_program(1);
 +    }
 +    if (scan_all_pmts_set)
 +        av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
 +    remove_avoptions(&o->g->format_opts, o->g->codec_opts);
 +    assert_avoptions(o->g->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, o->g->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);
 +        if (ic->nb_streams == 0) {
 +            avformat_close_input(&ic);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (o->start_time_eof != AV_NOPTS_VALUE) {
 +        if (ic->duration>0) {
 +            o->start_time = o->start_time_eof + ic->duration;
 +        } else
 +            av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
 +    }
 +    timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
 +    /* add the stream start time */
 +    if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
 +        timestamp += ic->start_time;
 +
 +    /* if seeking requested, we execute it */
 +    if (o->start_time != AV_NOPTS_VALUE) {
 +        int64_t seek_timestamp = timestamp;
 +
 +        if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
 +            int dts_heuristic = 0;
 +            for (i=0; i<ic->nb_streams; i++) {
 +                const AVCodecParameters *par = ic->streams[i]->codecpar;
 +                if (par->video_delay)
 +                    dts_heuristic = 1;
 +            }
 +            if (dts_heuristic) {
 +                seek_timestamp -= 3*AV_TIME_BASE / 23;
 +            }
 +        }
 +        ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
 +        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);
 +
 +    GROW_ARRAY(input_files, nb_input_files);
 +    f = av_mallocz(sizeof(*f));
 +    if (!f)
 +        exit_program(1);
 +    input_files[nb_input_files - 1] = f;
 +
 +    f->ctx        = ic;
 +    f->ist_index  = nb_input_streams - ic->nb_streams;
 +    f->start_time = o->start_time;
 +    f->recording_time = o->recording_time;
 +    f->input_ts_offset = o->input_ts_offset;
 +    f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
 +    f->nb_streams = ic->nb_streams;
 +    f->rate_emu   = o->rate_emu;
 +    f->accurate_seek = o->accurate_seek;
 +    f->loop = o->loop;
 +    f->duration = 0;
 +    f->time_base = (AVRational){ 1, 1 };
 +#if HAVE_PTHREADS
 +    f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
 +#endif
 +
 +    /* check if all codec options have been used */
 +    unused_opts = strip_specifiers(o->g->codec_opts);
 +    for (i = f->ist_index; i < nb_input_streams; i++) {
 +        e = NULL;
 +        while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
 +                                AV_DICT_IGNORE_SUFFIX)))
 +            av_dict_set(&unused_opts, e->key, NULL, 0);
 +    }
 +
 +    e = NULL;
 +    while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        const AVClass *class = avcodec_get_class();
 +        const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        const AVClass *fclass = avformat_get_class();
 +        const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        if (!option || foption)
 +            continue;
 +
 +
 +        if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
 +            av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
 +                   "input file #%d (%s) is not a decoding option.\n", e->key,
 +                   option->help ? option->help : "", nb_input_files - 1,
 +                   filename);
 +            exit_program(1);
 +        }
 +
 +        av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
 +               "input file #%d (%s) has not been used for any stream. The most "
 +               "likely reason is either wrong type (e.g. a video option with "
 +               "no video streams) or that it is a private option of some decoder "
 +               "which was not actually used for any stream.\n", e->key,
 +               option->help ? option->help : "", nb_input_files - 1, filename);
 +    }
 +    av_dict_free(&unused_opts);
 +
 +    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);
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +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 < 0; 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 < 0) {
 +            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 int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
 +{
 +    enum AVMediaType type = ost->st->codecpar->codec_type;
 +    char *codec_name = NULL;
 +
 +    if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
 +        MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
 +        if (!codec_name) {
 +            ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
 +                                                         NULL, ost->st->codecpar->codec_type);
 +            ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
 +            if (!ost->enc) {
 +                av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
 +                       "output stream #%d:%d. Default encoder for format %s (codec %s) is "
 +                       "probably disabled. Please choose an encoder manually.\n",
 +                       ost->file_index, ost->index, s->oformat->name,
 +                       avcodec_get_name(ost->st->codecpar->codec_id));
 +                return AVERROR_ENCODER_NOT_FOUND;
 +            }
 +        } else if (!strcmp(codec_name, "copy"))
 +            ost->stream_copy = 1;
 +        else {
 +            ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
 +            ost->st->codecpar->codec_id = ost->enc->id;
 +        }
 +        ost->encoding_needed = !ost->stream_copy;
 +    } else {
 +        /* no encoding supported for other media types */
 +        ost->stream_copy     = 1;
 +        ost->encoding_needed = 0;
 +    }
 +
 +    return 0;
 +}
 +
 +static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
 +{
 +    OutputStream *ost;
 +    AVStream *st = avformat_new_stream(oc, NULL);
 +    int idx      = oc->nb_streams - 1, ret = 0;
 +    const char *bsfs = NULL, *time_base = NULL;
 +    char *next, *codec_tag = NULL;
 +    double qscale = -1;
 +    int i;
 +
 +    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];
 +
 +    GROW_ARRAY(output_streams, nb_output_streams);
 +    if (!(ost = av_mallocz(sizeof(*ost))))
 +        exit_program(1);
 +    output_streams[nb_output_streams - 1] = ost;
 +
 +    ost->file_index = nb_output_files - 1;
 +    ost->index      = idx;
 +    ost->st         = st;
 +    st->codecpar->codec_type = type;
 +
 +    ret = choose_encoder(o, oc, ost);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
 +               "%d:%d\n", ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    ost->enc_ctx = avcodec_alloc_context3(ost->enc);
 +    if (!ost->enc_ctx) {
 +        av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
 +        exit_program(1);
 +    }
 +    ost->enc_ctx->codec_type = type;
 +
 +    ost->ref_par = avcodec_parameters_alloc();
 +    if (!ost->ref_par) {
 +        av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
 +        exit_program(1);
 +    }
 +
 +    if (ost->enc) {
 +        AVIOContext *s = NULL;
 +        char *buf = NULL, *arg = NULL, *preset = NULL;
 +
 +        ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
 +
 +        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->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
 +                av_free(buf);
 +            } while (!s->eof_reached);
 +            avio_closep(&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);
 +        }
 +    } else {
 +        ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
 +    }
 +
 +    MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
 +    if (time_base) {
 +        AVRational q;
 +        if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
 +            q.num <= 0 || q.den <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
 +            exit_program(1);
 +        }
 +        st->time_base = q;
 +    }
 +
 +    ost->max_frames = INT64_MAX;
 +    MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
 +    for (i = 0; i<o->nb_max_frames; i++) {
 +        char *p = o->max_frames[i].specifier;
 +        if (!*p && type != AVMEDIA_TYPE_VIDEO) {
 +            av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
 +            break;
 +        }
 +    }
 +
 +    ost->copy_prior_start = -1;
 +    MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
 +
 +    MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
 +    while (bsfs && *bsfs) {
 +        const AVBitStreamFilter *filter;
 +        char *bsf, *bsf_options_str, *bsf_name;
 +
 +        bsf = av_get_token(&bsfs, ",");
 +        if (!bsf)
 +            exit_program(1);
 +        bsf_name = av_strtok(bsf, "=", &bsf_options_str);
 +        if (!bsf_name)
 +            exit_program(1);
 +
 +        filter = av_bsf_get_by_name(bsf_name);
 +        if (!filter) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
 +            exit_program(1);
 +        }
 +
 +        ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
 +                                        ost->nb_bitstream_filters + 1,
 +                                        sizeof(*ost->bsf_ctx));
 +        if (!ost->bsf_ctx)
 +            exit_program(1);
 +
 +        ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
 +            exit_program(1);
 +        }
 +
 +        ost->nb_bitstream_filters++;
 +
 +        if (bsf_options_str && filter->priv_class) {
 +            const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
 +            const char * shorthand[2] = {NULL};
 +
 +            if (opt)
 +                shorthand[0] = opt->name;
 +
 +            ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
 +                exit_program(1);
 +            }
 +        }
 +        av_freep(&bsf);
 +
 +        if (*bsfs)
 +            bsfs++;
 +    }
 +    if (ost->nb_bitstream_filters) {
 +        ost->bsf_extradata_updated = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_extradata_updated));
 +        if (!ost->bsf_extradata_updated) {
 +            av_log(NULL, AV_LOG_FATAL, "Bitstream filter memory allocation failed\n");
 +            exit_program(1);
 +        }
 +    }
 +
 +    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);
 +        ost->st->codecpar->codec_tag =
 +        ost->enc_ctx->codec_tag = tag;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
 +    if (qscale >= 0) {
 +        ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
 +        ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
 +    ost->disposition = av_strdup(ost->disposition);
 +
 +    ost->max_muxing_queue_size = 128;
 +    MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
 +    ost->max_muxing_queue_size *= sizeof(AVPacket);
 +
 +    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 +        ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 +
 +    av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
 +
 +    av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
 +    if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
 +        av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
 +
 +    av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
 +
 +    ost->source_index = source_index;
 +    if (source_index >= 0) {
 +        ost->sync_ist = input_streams[source_index];
 +        input_streams[source_index]->discard = 0;
 +        input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
 +    }
 +    ost->last_mux_dts = AV_NOPTS_VALUE;
 +
 +    ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
 +    if (!ost->muxing_queue)
 +        exit_program(1);
 +
 +    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++;
 +    }
 +}
 +
 +/* read file contents into a string */
 +static uint8_t *read_file(const char *filename)
 +{
 +    AVIOContext *pb      = NULL;
 +    AVIOContext *dyn_buf = NULL;
 +    int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
 +    uint8_t buf[1024], *str;
 +
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
 +        return NULL;
 +    }
 +
 +    ret = avio_open_dyn_buf(&dyn_buf);
 +    if (ret < 0) {
 +        avio_closep(&pb);
 +        return NULL;
 +    }
 +    while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
 +        avio_write(dyn_buf, buf, ret);
 +    avio_w8(dyn_buf, 0);
 +    avio_closep(&pb);
 +
 +    ret = avio_close_dyn_buf(dyn_buf, &str);
 +    if (ret < 0)
 +        return NULL;
 +    return str;
 +}
 +
 +static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
 +                             OutputStream *ost)
 +{
 +    AVStream *st = ost->st;
 +
 +    if (ost->filters_script && ost->filters) {
 +        av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
 +               "output stream #%d:%d.\n", nb_output_files, st->index);
 +        exit_program(1);
 +    }
 +
 +    if (ost->filters_script)
 +        return read_file(ost->filters_script);
 +    else if (ost->filters)
 +        return av_strdup(ost->filters);
 +
 +    return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
 +                     "null" : "anull");
 +}
 +
 +static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
 +                                     const OutputStream *ost, enum AVMediaType type)
 +{
 +    if (ost->filters_script || ost->filters) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
 +               "Filtering and streamcopy cannot be used together.\n",
 +               ost->filters ? "Filtergraph" : "Filtergraph script",
 +               ost->filters ? ost->filters : ost->filters_script,
 +               av_get_media_type_string(type), ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +}
 +
 +static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *video_enc;
 +    char *frame_rate = NULL, *frame_aspect_ratio = NULL;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
 +    st  = ost->st;
 +    video_enc = ost->enc_ctx;
 +
 +    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);
 +    }
 +    if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
 +        av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
 +
 +    MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
 +    if (frame_aspect_ratio) {
 +        AVRational q;
 +        if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
 +            q.num <= 0 || q.den <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
 +            exit_program(1);
 +        }
 +        ost->frame_aspect_ratio = q;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
 +    MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
 +
 +    if (!ost->stream_copy) {
 +        const char *p = NULL;
 +        char *frame_size = NULL;
 +        char *frame_pix_fmt = NULL;
 +        char *intra_matrix = NULL, *inter_matrix = NULL;
 +        char *chroma_intra_matrix = NULL;
 +        int do_pass = 0;
 +        int i;
 +
 +        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);
 +        }
 +
 +        video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
 +        MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
 +        if (frame_pix_fmt && *frame_pix_fmt == '+') {
 +            ost->keep_pix_fmt = 1;
 +            if (!*++frame_pix_fmt)
 +                frame_pix_fmt = NULL;
 +        }
 +        if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_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;
 +
 +        if (intra_only)
 +            video_enc->gop_size = 0;
 +        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(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
 +        if (chroma_intra_matrix) {
 +            uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
 +            if (!p) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
 +                exit_program(1);
 +            }
 +            av_codec_set_chroma_intra_matrix(video_enc, p);
 +            parse_matrix_coeffs(p, chroma_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_array(video_enc->rc_override,
 +                                 i + 1, sizeof(RcOverride));
 +            if (!video_enc->rc_override) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
 +                exit_program(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 (do_psnr)
 +            video_enc->flags|= AV_CODEC_FLAG_PSNR;
 +
 +        /* two pass mode */
 +        MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
 +        if (do_pass) {
 +            if (do_pass & 1) {
 +                video_enc->flags |= AV_CODEC_FLAG_PASS1;
 +                av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
 +            }
 +            if (do_pass & 2) {
 +                video_enc->flags |= AV_CODEC_FLAG_PASS2;
 +                av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
 +        if (ost->logfile_prefix &&
 +            !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
 +            exit_program(1);
 +
 +        if (do_pass) {
 +            char logfilename[1024];
 +            FILE *f;
 +
 +            snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
 +                     ost->logfile_prefix ? ost->logfile_prefix :
 +                                           DEFAULT_PASS_LOGFILENAME_PREFIX,
 +                     i);
 +            if (!strcmp(ost->enc->name, "libx264")) {
 +                av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
 +            } else {
 +                if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
 +                    char  *logbuffer = read_file(logfilename);
 +
 +                    if (!logbuffer) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
 +                               logfilename);
 +                        exit_program(1);
 +                    }
 +                    video_enc->stats_in = logbuffer;
 +                }
 +                if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
 +                    f = av_fopen_utf8(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;
 +                }
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
 +        if (ost->forced_keyframes)
 +            ost->forced_keyframes = av_strdup(ost->forced_keyframes);
 +
 +        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);
 +
 +
 +        ost->avfilter = get_ost_filters(o, oc, ost);
 +        if (!ost->avfilter)
 +            exit_program(1);
 +    } else {
 +        MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
 +    }
 +
 +    if (ost->stream_copy)
 +        check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    int n;
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *audio_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
 +    st  = ost->st;
 +
 +    audio_enc = ost->enc_ctx;
 +    audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
 +
 +    MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
 +    MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
 +
 +    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);
 +
 +        MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
 +        ost->apad = av_strdup(ost->apad);
 +
 +        ost->avfilter = get_ost_filters(o, oc, ost);
 +        if (!ost->avfilter)
 +            exit_program(1);
 +
 +        /* check for channel mapping for this audio stream */
 +        for (n = 0; n < o->nb_audio_channel_maps; n++) {
 +            AudioChannelMap *map = &o->audio_channel_maps[n];
 +            if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
 +                (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
 +                InputStream *ist;
 +
 +                if (map->channel_idx == -1) {
 +                    ist = NULL;
 +                } else if (ost->source_index < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
 +                           ost->file_index, ost->st->index);
 +                    continue;
 +                } else {
 +                    ist = input_streams[ost->source_index];
 +                }
 +
 +                if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
 +                    if (av_reallocp_array(&ost->audio_channels_map,
 +                                          ost->audio_channels_mapped + 1,
 +                                          sizeof(*ost->audio_channels_map)
 +                                          ) < 0 )
 +                        exit_program(1);
 +
 +                    ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
 +                }
 +            }
 +        }
 +    }
 +
 +    if (ost->stream_copy)
 +        check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
 +    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_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
 +        exit_program(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
 +    ost->stream_copy = 1;
 +    ost->finished    = 1;
 +    return ost;
 +}
 +
 +static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *subtitle_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
 +    st  = ost->st;
 +    subtitle_enc = ost->enc_ctx;
 +
 +    subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 +
 +    MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
 +
 +    if (!ost->stream_copy) {
 +        char *frame_size = NULL;
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
 +            exit_program(1);
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +/* arg format is "output-stream-index:streamid-value". */
 +static int opt_streamid(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    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;
 +    AVChapter **tmp;
 +    int i;
 +
 +    tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
 +    if (!tmp)
 +        return AVERROR(ENOMEM);
 +    os->chapters = tmp;
 +
 +    for (i = 0; i < is->nb_chapters; i++) {
 +        AVChapter *in_ch = is->chapters[i], *out_ch;
 +        int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
 +        int64_t ts_off   = av_rescale_q(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->chapters[os->nb_chapters++] = out_ch;
 +    }
 +    return 0;
 +}
 +
 +static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
 +{
 +    int i, err;
 +    AVFormatContext *ic = avformat_alloc_context();
 +
 +    ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
 +    ic->interrupt_callback = int_cb;
 +    err = avformat_open_input(&ic, filename, NULL, NULL);
 +    if (err < 0)
 +        return err;
 +    /* copy stream format */
 +    for(i=0;i<ic->nb_streams;i++) {
 +        AVStream *st;
 +        OutputStream *ost;
 +        AVCodec *codec;
 +        const char *enc_config;
 +
 +        codec = avcodec_find_encoder(ic->streams[i]->codecpar->codec_id);
 +        if (!codec) {
 +            av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codecpar->codec_id);
 +            return AVERROR(EINVAL);
 +        }
 +        if (codec->type == AVMEDIA_TYPE_AUDIO)
 +            opt_audio_codec(o, "c:a", codec->name);
 +        else if (codec->type == AVMEDIA_TYPE_VIDEO)
 +            opt_video_codec(o, "c:v", codec->name);
 +        ost   = new_output_stream(o, s, codec->type, -1);
 +        st    = ost->st;
 +
 +        avcodec_get_context_defaults3(st->codec, codec);
 +        enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
 +        if (enc_config) {
 +            AVDictionary *opts = NULL;
 +            av_dict_parse_string(&opts, enc_config, "=", ",", 0);
 +            av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
 +            av_dict_free(&opts);
 +        }
 +
 +        if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
 +            choose_sample_fmt(st, codec);
 +        else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
 +            choose_pixel_fmt(st, st->codec, codec, st->codecpar->format);
 +        avcodec_copy_context(ost->enc_ctx, st->codec);
 +        if (enc_config)
 +            av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
 +    }
 +
 +    avformat_close_input(&ic);
 +    return err;
 +}
 +
 +static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
 +                               AVFormatContext *oc)
 +{
 +    OutputStream *ost;
 +
 +    switch (ofilter->type) {
 +    case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
 +    case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
 +    default:
 +        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
 +               "currently.\n");
 +        exit_program(1);
 +    }
 +
 +    ost->source_index = -1;
 +    ost->filter       = ofilter;
 +
 +    ofilter->ost      = ost;
 +    ofilter->format   = -1;
 +
 +    if (ost->stream_copy) {
 +        av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
 +               "which is fed from a complex filtergraph. Filtering and streamcopy "
 +               "cannot be used together.\n", ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    if (ost->avfilter && (ost->filters || ost->filters_script)) {
 +        const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
 +        av_log(NULL, AV_LOG_ERROR,
 +               "%s '%s' was specified through the %s option "
 +               "for output stream %d:%d, which is fed from a complex filtergraph.\n"
 +               "%s and -filter_complex cannot be used together for the same stream.\n",
 +               ost->filters ? "Filtergraph" : "Filtergraph script",
 +               ost->filters ? ost->filters : ost->filters_script,
 +               opt, ost->file_index, ost->index, opt);
 +        exit_program(1);
 +    }
 +
 +    avfilter_inout_free(&ofilter->out_tmp);
 +}
 +
 +static int init_complex_filters(void)
 +{
 +    int i, ret = 0;
 +
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        ret = init_complex_filtergraph(filtergraphs[i]);
 +        if (ret < 0)
 +            return ret;
 +    }
 +    return 0;
 +}
 +
 +static int open_output_file(OptionsContext *o, const char *filename)
 +{
 +    AVFormatContext *oc;
 +    int i, j, err;
 +    AVOutputFormat *file_oformat;
 +    OutputFile *of;
 +    OutputStream *ost;
 +    InputStream  *ist;
 +    AVDictionary *unused_opts = NULL;
 +    AVDictionaryEntry *e = NULL;
 +    int format_flags = 0;
 +
 +    if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
 +        o->stop_time = INT64_MAX;
 +        av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
 +    }
 +
 +    if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
 +        int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
 +        if (o->stop_time <= start_time) {
 +            av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
 +            exit_program(1);
 +        } else {
 +            o->recording_time = o->stop_time - start_time;
 +        }
 +    }
 +
 +    GROW_ARRAY(output_files, nb_output_files);
 +    of = av_mallocz(sizeof(*of));
 +    if (!of)
 +        exit_program(1);
 +    output_files[nb_output_files - 1] = of;
 +
 +    of->ost_index      = nb_output_streams;
 +    of->recording_time = o->recording_time;
 +    of->start_time     = o->start_time;
 +    of->limit_filesize = o->limit_filesize;
 +    of->shortest       = o->shortest;
 +    av_dict_copy(&of->opts, o->g->format_opts, 0);
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
 +    if (!oc) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +
 +    of->ctx = oc;
 +    if (o->recording_time != INT64_MAX)
 +        oc->duration = o->recording_time;
 +
 +    file_oformat= oc->oformat;
 +    oc->interrupt_callback = int_cb;
 +
 +    e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
 +    if (e) {
 +        const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
 +        av_opt_eval_flags(oc, o, e->value, &format_flags);
 +    }
 +
 +    /* create streams for all unlabeled output pads */
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        FilterGraph *fg = filtergraphs[i];
 +        for (j = 0; j < fg->nb_outputs; j++) {
 +            OutputFilter *ofilter = fg->outputs[j];
 +
 +            if (!ofilter->out_tmp || ofilter->out_tmp->name)
 +                continue;
 +
 +            switch (ofilter->type) {
 +            case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
 +            case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
 +            case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
 +            }
 +            init_output_filter(ofilter, o, oc);
 +        }
 +    }
 +
 +    /* ffserver seeking with date=... needs a date reference */
 +    if (!strcmp(file_oformat->name, "ffm") &&
 +        !(format_flags & AVFMT_FLAG_BITEXACT) &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int err = parse_option(o, "metadata", "creation_time=now", options);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int j;
 +        /* special case for files sent to ffserver: we get the stream
 +           parameters from ffserver */
 +        int err = read_ffserver_streams(o, oc, filename);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +        for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
 +            ost = output_streams[j];
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if(ist->st->codecpar->codec_type == ost->st->codecpar->codec_type){
 +                    ost->sync_ist= ist;
 +                    ost->source_index= i;
 +                    if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
 +                    if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
 +                    ist->discard = 0;
 +                    ist->st->discard = ist->user_set_discard;
 +                    break;
 +                }
 +            }
 +            if(!ost->sync_ist){
 +                av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codecpar->codec_type));
 +                exit_program(1);
 +            }
 +        }
 +    } else if (!o->nb_stream_maps) {
 +        char *subtitle_codec_name = NULL;
 +        /* pick the "best" stream of each type */
 +
 +        /* video: highest resolution */
 +        if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
 +            int area = 0, idx = -1;
 +            int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
 +            for (i = 0; i < nb_input_streams; i++) {
 +                int new_area;
 +                ist = input_streams[i];
 +                new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
 +                if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                    new_area = 1;
 +                if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
 +                    new_area > area) {
 +                    if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                        continue;
 +                    area = new_area;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_video_stream(o, oc, idx);
 +        }
 +
 +        /* audio: most channels */
 +        if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
 +            int best_score = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                int score;
 +                ist = input_streams[i];
 +                score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
 +                if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
 +                    score > best_score) {
 +                    best_score = score;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_audio_stream(o, oc, idx);
 +        }
 +
 +        /* subtitles: pick first */
 +        MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
 +        if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
 +            for (i = 0; i < nb_input_streams; i++)
 +                if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                    AVCodecDescriptor const *input_descriptor =
 +                        avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
 +                    AVCodecDescriptor const *output_descriptor = NULL;
 +                    AVCodec const *output_codec =
 +                        avcodec_find_encoder(oc->oformat->subtitle_codec);
 +                    int input_props = 0, output_props = 0;
 +                    if (output_codec)
 +                        output_descriptor = avcodec_descriptor_get(output_codec->id);
 +                    if (input_descriptor)
 +                        input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
 +                    if (output_descriptor)
 +                        output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
 +                    if (subtitle_codec_name ||
 +                        input_props & output_props ||
 +                        // Map dvb teletext which has neither property to any output subtitle encoder
 +                        input_descriptor && output_descriptor &&
 +                        (!input_descriptor->props ||
 +                         !output_descriptor->props)) {
 +                        new_subtitle_stream(o, oc, i);
 +                        break;
 +                    }
 +                }
 +        }
 +        /* Data only if codec id match */
 +        if (!o->data_disable ) {
 +            enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
 +            for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
 +                if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
 +                    && input_streams[i]->st->codecpar->codec_id == codec_id )
 +                    new_data_stream(o, oc, i);
 +            }
 +        }
 +    } else {
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            StreamMap *map = &o->stream_maps[i];
 +
 +            if (map->disabled)
 +                continue;
 +
 +            if (map->linklabel) {
 +                FilterGraph *fg;
 +                OutputFilter *ofilter = NULL;
 +                int j, k;
 +
 +                for (j = 0; j < nb_filtergraphs; j++) {
 +                    fg = filtergraphs[j];
 +                    for (k = 0; k < fg->nb_outputs; k++) {
 +                        AVFilterInOut *out = fg->outputs[k]->out_tmp;
 +                        if (out && !strcmp(out->name, map->linklabel)) {
 +                            ofilter = fg->outputs[k];
 +                            goto loop_end;
 +                        }
 +                    }
 +                }
 +loop_end:
 +                if (!ofilter) {
 +                    av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
 +                           "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
 +                    exit_program(1);
 +                }
 +                init_output_filter(ofilter, o, oc);
 +            } else {
 +                int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
 +
 +                ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
 +                if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
 +                    continue;
 +                if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
 +                    continue;
 +                if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
 +                    continue;
 +                if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
 +                    continue;
 +
 +                ost = NULL;
 +                switch (ist->st->codecpar->codec_type) {
 +                case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_UNKNOWN:
 +                    if (copy_unknown_streams) {
 +                        ost = new_unknown_stream   (o, oc, src_idx);
 +                        break;
 +                    }
 +                default:
 +                    av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
 +                           "Cannot map stream #%d:%d - unsupported type.\n",
 +                           map->file_index, map->stream_index);
 +                    if (!ignore_unknown_streams) {
 +                        av_log(NULL, AV_LOG_FATAL,
 +                               "If you want unsupported types ignored instead "
 +                               "of failing, please use the -ignore_unknown option\n"
 +                               "If you want them copied, please use -copy_unknown\n");
 +                        exit_program(1);
 +                    }
 +                }
 +                if (ost)
 +                    ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
 +                                                  + map->sync_stream_index];
 +            }
 +        }
 +    }
 +
 +    /* 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, -1);
 +        ost->stream_copy               = 0;
 +        ost->attachment_filename       = o->attachments[i];
 +        ost->st->codecpar->extradata      = attachment;
 +        ost->st->codecpar->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_closep(&pb);
 +    }
 +
 +#if FF_API_LAVF_AVCTX
 +    for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
 +        AVDictionaryEntry *e;
 +        ost = output_streams[i];
 +
 +        if ((ost->stream_copy || ost->attachment_filename)
 +            && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
 +            && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
 +            if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
 +                exit_program(1);
 +    }
 +#endif
 +
 +    if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
 +        av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
 +        av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
 +        exit_program(1);
 +    }
 +
 +    /* check if all codec options have been used */
 +    unused_opts = strip_specifiers(o->g->codec_opts);
 +    for (i = of->ost_index; i < nb_output_streams; i++) {
 +        e = NULL;
 +        while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
 +                                AV_DICT_IGNORE_SUFFIX)))
 +            av_dict_set(&unused_opts, e->key, NULL, 0);
 +    }
 +
 +    e = NULL;
 +    while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        const AVClass *class = avcodec_get_class();
 +        const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        const AVClass *fclass = avformat_get_class();
 +        const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
 +                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        if (!option || foption)
 +            continue;
 +
 +
 +        if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
 +            av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
 +                   "output file #%d (%s) is not an encoding option.\n", e->key,
 +                   option->help ? option->help : "", nb_output_files - 1,
 +                   filename);
 +            exit_program(1);
 +        }
 +
 +        // gop_timecode is injected by generic code but not always used
 +        if (!strcmp(e->key, "gop_timecode"))
 +            continue;
 +
 +        av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
 +               "output file #%d (%s) has not been used for any stream. The most "
 +               "likely reason is either wrong type (e.g. a video option with "
 +               "no video streams) or that it is a private option of some encoder "
 +               "which was not actually used for any stream.\n", e->key,
 +               option->help ? option->help : "", nb_output_files - 1, filename);
 +    }
 +    av_dict_free(&unused_opts);
 +
 +    /* set the decoding_needed flags and create simple filtergraphs */
 +    for (i = of->ost_index; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (ost->encoding_needed && ost->source_index >= 0) {
 +            InputStream *ist = input_streams[ost->source_index];
 +            ist->decoding_needed |= DECODING_FOR_OST;
 +
 +            if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
 +                ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
 +                err = init_simple_filtergraph(ist, ost);
 +                if (err < 0) {
 +                    av_log(NULL, AV_LOG_ERROR,
 +                           "Error initializing a simple filtergraph between streams "
 +                           "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
 +                           nb_output_files - 1, ost->st->index);
 +                    exit_program(1);
 +                }
 +            }
 +        }
 +
 +        /* set the filter output constraints */
 +        if (ost->filter) {
 +            OutputFilter *f = ost->filter;
 +            int count;
 +            switch (ost->enc_ctx->codec_type) {
 +            case AVMEDIA_TYPE_VIDEO:
 +                f->frame_rate = ost->frame_rate;
 +                f->width      = ost->enc_ctx->width;
 +                f->height     = ost->enc_ctx->height;
 +                if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
 +                    f->format = ost->enc_ctx->pix_fmt;
 +                } else if (ost->enc->pix_fmts) {
 +                    count = 0;
 +                    while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
 +                        count++;
 +                    f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
 +                    if (!f->formats)
 +                        exit_program(1);
 +                    memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
 +                }
 +                break;
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
 +                    f->format = ost->enc_ctx->sample_fmt;
 +                } else if (ost->enc->sample_fmts) {
 +                    count = 0;
 +                    while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
 +                        count++;
 +                    f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
 +                    if (!f->formats)
 +                        exit_program(1);
 +                    memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
 +                }
 +                if (ost->enc_ctx->sample_rate) {
 +                    f->sample_rate = ost->enc_ctx->sample_rate;
 +                } else if (ost->enc->supported_samplerates) {
 +                    count = 0;
 +                    while (ost->enc->supported_samplerates[count])
 +                        count++;
 +                    f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
 +                    if (!f->sample_rates)
 +                        exit_program(1);
 +                    memcpy(f->sample_rates, ost->enc->supported_samplerates,
 +                           (count + 1) * sizeof(*f->sample_rates));
 +                }
 +                if (ost->enc_ctx->channels) {
 +                    f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
 +                } else if (ost->enc->channel_layouts) {
 +                    count = 0;
 +                    while (ost->enc->channel_layouts[count])
 +                        count++;
 +                    f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
 +                    if (!f->channel_layouts)
 +                        exit_program(1);
 +                    memcpy(f->channel_layouts, ost->enc->channel_layouts,
 +                           (count + 1) * sizeof(*f->channel_layouts));
 +                }
 +                break;
 +            }
 +        }
 +    }
 +
 +    /* 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_NOSTREAMS) && !input_stream_potentially_available) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "No input streams but output needs an input stream\n");
 +        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,
 +                              &of->opts)) < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
 +        assert_file_overwrite(filename);
 +
 +    if (o->mux_preload) {
 +        av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 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 >= 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,
 +                      in_file_index >= 0 ?
 +                      input_files[in_file_index]->ctx : NULL, 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], of,
 +                      !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->recording_time != INT64_MAX)
 +            av_dict_set(&oc->metadata, "duration", NULL, 0);
 +        av_dict_set(&oc->metadata, "creation_time", NULL, 0);
 +    }
 +    if (!o->metadata_streams_manual)
 +        for (i = of->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);
 +            if (!output_streams[i]->stream_copy) {
 +                av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
 +            }
 +        }
 +
 +    /* process manually set programs */
 +    for (i = 0; i < o->nb_program; i++) {
 +        const char *p = o->program[i].u.str;
 +        int progid = i+1;
 +        AVProgram *program;
 +
 +        while(*p) {
 +            const char *p2 = av_get_token(&p, ":");
 +            const char *to_dealloc = p2;
 +            char *key;
 +            if (!p2)
 +                break;
 +
 +            if(*p) p++;
 +
 +            key = av_get_token(&p2, "=");
 +            if (!key || !*p2) {
 +                av_freep(&to_dealloc);
 +                av_freep(&key);
 +                break;
 +            }
 +            p2++;
 +
 +            if (!strcmp(key, "program_num"))
 +                progid = strtol(p2, NULL, 0);
 +            av_freep(&to_dealloc);
 +            av_freep(&key);
 +        }
 +
 +        program = av_new_program(oc, progid);
 +
 +        p = o->program[i].u.str;
 +        while(*p) {
 +            const char *p2 = av_get_token(&p, ":");
 +            const char *to_dealloc = p2;
 +            char *key;
 +            if (!p2)
 +                break;
 +            if(*p) p++;
 +
 +            key = av_get_token(&p2, "=");
 +            if (!key) {
 +                av_log(NULL, AV_LOG_FATAL,
 +                       "No '=' character in program string %s.\n",
 +                       p2);
 +                exit_program(1);
 +            }
 +            if (!*p2)
 +                exit_program(1);
 +            p2++;
 +
 +            if (!strcmp(key, "title")) {
 +                av_dict_set(&program->metadata, "title", p2, 0);
 +            } else if (!strcmp(key, "program_num")) {
 +            } else if (!strcmp(key, "st")) {
 +                int st_num = strtol(p2, NULL, 0);
 +                av_program_add_stream_index(oc, progid, st_num);
 +            } else {
 +                av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
 +                exit_program(1);
 +            }
 +            av_freep(&to_dealloc);
 +            av_freep(&key);
 +        }
 +    }
 +
 +    /* 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 = 0;
 +
 +        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++) {
 +                ost = output_streams[nb_output_streams - oc->nb_streams + j];
 +                if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
 +                    if (!strcmp(o->metadata[i].u.str, "rotate")) {
 +                        char *tail;
 +                        double theta = av_strtod(val, &tail);
 +                        if (!*tail) {
 +                            ost->rotate_overridden = 1;
 +                            ost->rotate_override_value = theta;
 +                        }
 +                    } else {
 +                        av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
 +                    }
 +                } else if (ret < 0)
 +                    exit_program(1);
 +            }
 +        }
 +        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;
 +            case 'p':
 +                if (index < 0 || index >= oc->nb_programs) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
 +                    exit_program(1);
 +                }
 +                m = &oc->programs[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);
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static int opt_target(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    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++) {
 +                    AVStream *st = input_files[j]->ctx->streams[i];
 +                    if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
 +                        continue;
 +                    fr = st->time_base.den * 1000 / st->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(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "1150000");
 +        opt_default(NULL, "maxrate:v", "1150000");
 +        opt_default(NULL, "minrate:v", "1150000");
 +        opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +        parse_option(o, "ac", "2", options);
 +
 +        opt_default(NULL, "packetsize", "2324");
 +        opt_default(NULL, "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);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "2040000");
 +        opt_default(NULL, "maxrate:v", "2516000");
 +        opt_default(NULL, "minrate:v", "0"); // 1145000;
 +        opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 +        opt_default(NULL, "scan_offset", "1");
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +
 +        opt_default(NULL, "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);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "6000000");
 +        opt_default(NULL, "maxrate:v", "9000000");
 +        opt_default(NULL, "minrate:v", "0"); // 1500000;
 +        opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 +
 +        opt_default(NULL, "packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 +        opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 +
 +        opt_default(NULL, "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);
 +    }
 +
 +    av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
 +    av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
 +{
 +    av_free (vstats_filename);
 +    vstats_filename = av_strdup (arg);
 +    return 0;
 +}
 +
 +static int opt_vstats(void *optctx, const char *opt, const char *arg)
 +{
 +    char filename[40];
 +    time_t today2 = time(NULL);
 +    struct tm *today = localtime(&today2);
 +
 +    if (!today) { // maybe tomorrow
 +        av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
 +        exit_program(1);
 +    }
 +
 +    snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 +             today->tm_sec);
 +    return opt_vstats_file(NULL, opt, filename);
 +}
 +
 +static int opt_video_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:v", arg, options);
 +}
 +
 +static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:a", arg, options);
 +}
 +
 +static int opt_data_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:d", arg, options);
 +}
 +
 +static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int ret;
 +    AVDictionary *cbak = codec_opts;
 +    AVDictionary *fbak = format_opts;
 +    codec_opts = NULL;
 +    format_opts = NULL;
 +
 +    ret = opt_default(NULL, opt, arg);
 +
 +    av_dict_copy(&o->g->codec_opts , codec_opts, 0);
 +    av_dict_copy(&o->g->format_opts, format_opts, 0);
 +    av_dict_free(&codec_opts);
 +    av_dict_free(&format_opts);
 +    codec_opts = cbak;
 +    format_opts = fbak;
 +
 +    return ret;
 +}
 +
 +static int opt_preset(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    FILE *f=NULL;
 +    char filename[1000], line[1000], tmp_line[1000];
 +    const char *codec_name = NULL;
 +
 +    tmp_line[0] = *opt;
 +    tmp_line[1] = 0;
 +    MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
 +
 +    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 +        if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 +            av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 +        }else
 +            av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
 +        exit_program(1);
 +    }
 +
 +    while (fgets(line, sizeof(line), f)) {
 +        char *key = tmp_line, *value, *endptr;
 +
 +        if (strcspn(line, "#\n\r") == 0)
 +            continue;
 +        av_strlcpy(tmp_line, line, sizeof(tmp_line));
 +        if (!av_strtok(key,   "=",    &value) ||
 +            !av_strtok(value, "\r\n", &endptr)) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
 +            exit_program(1);
 +        }
 +        av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
 +
 +        if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
 +        else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
 +        else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
 +        else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
 +        else if (opt_default_new(o, key, value) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
 +                   filename, line, key, value);
 +            exit_program(1);
 +        }
 +    }
 +
 +    fclose(f);
 +
 +    return 0;
 +}
 +
 +static int opt_old2new(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s = av_asprintf("%s:%c", opt + 1, *opt);
 +    int ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_bitrate(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +
 +    if(!strcmp(opt, "ab")){
 +        av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
 +        return 0;
 +    } else if(!strcmp(opt, "b")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 +        av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
 +        return 0;
 +    }
 +    av_dict_set(&o->g->codec_opts, opt, arg, 0);
 +    return 0;
 +}
 +
 +static int opt_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s;
 +    int ret;
 +    if(!strcmp(opt, "qscale")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 +        return parse_option(o, "q:v", arg, options);
 +    }
 +    s = av_asprintf("q%s", opt + 6);
 +    ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_profile(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    if(!strcmp(opt, "profile")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
 +        av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
 +        return 0;
 +    }
 +    av_dict_set(&o->g->codec_opts, opt, arg, 0);
 +    return 0;
 +}
 +
 +static int opt_video_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:v", arg, options);
 +}
 +
 +static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:a", arg, options);
 +}
 +
 +static int opt_vsync(void *optctx, 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;
 +    else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
 +
 +    if (video_sync_method == VSYNC_AUTO)
 +        video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
 +    return 0;
 +}
 +
 +static int opt_timecode(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *tcr = av_asprintf("timecode=%s", arg);
 +    int ret = parse_option(o, "metadata:g", tcr, options);
 +    if (ret >= 0)
 +        ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
 +    av_free(tcr);
 +    return 0;
 +}
 +
 +static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char layout_str[32];
 +    char *stream_str;
 +    char *ac_str;
 +    int ret, channels, ac_str_size;
 +    uint64_t layout;
 +
 +    layout = av_get_channel_layout(arg);
 +    if (!layout) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
 +    ret = opt_default_new(o, opt, layout_str);
 +    if (ret < 0)
 +        return ret;
 +
 +    /* set 'ac' option based on channel layout */
 +    channels = av_get_channel_layout_nb_channels(layout);
 +    snprintf(layout_str, sizeof(layout_str), "%d", channels);
 +    stream_str = strchr(opt, ':');
 +    ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
 +    ac_str = av_mallocz(ac_str_size);
 +    if (!ac_str)
 +        return AVERROR(ENOMEM);
 +    av_strlcpy(ac_str, "ac", 3);
 +    if (stream_str)
 +        av_strlcat(ac_str, stream_str, ac_str_size);
 +    ret = parse_option(o, ac_str, layout_str, options);
 +    av_free(ac_str);
 +
 +    return ret;
 +}
 +
 +static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "q:a", arg, options);
 +}
 +
 +static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
 +{
 +    GROW_ARRAY(filtergraphs, nb_filtergraphs);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
 +    if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
 +        return AVERROR(ENOMEM);
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
 +{
 +    uint8_t *graph_desc = read_file(arg);
 +    if (!graph_desc)
 +        return AVERROR(EINVAL);
 +
 +    GROW_ARRAY(filtergraphs, nb_filtergraphs);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +void show_help_default(const char *opt, const char *arg)
 +{
 +    /* per-file options have at least one of those set */
 +    const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
 +    int show_advanced = 0, show_avoptions = 0;
 +
 +    if (opt && *opt) {
 +        if (!strcmp(opt, "long"))
 +            show_advanced = 1;
 +        else if (!strcmp(opt, "full"))
 +            show_advanced = show_avoptions = 1;
 +        else
 +            av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
 +    }
 +
 +    show_usage();
 +
 +    printf("Getting help:\n"
 +           "    -h      -- print basic options\n"
 +           "    -h long -- print more options\n"
 +           "    -h full -- print all options (including all format and codec specific options, very long)\n"
 +           "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
 +           "    See man %s for detailed description of the options.\n"
 +           "\n", program_name);
 +
 +    show_help_options(options, "Print help / information / capabilities:",
 +                      OPT_EXIT, 0, 0);
 +
 +    show_help_options(options, "Global options (affect whole program "
 +                      "instead of just one file:",
 +                      0, per_file | OPT_EXIT | OPT_EXPERT, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced global options:", OPT_EXPERT,
 +                          per_file | OPT_EXIT, 0);
 +
 +    show_help_options(options, "Per-file main options:", 0,
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
 +                      OPT_EXIT, per_file);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced per-file options:",
 +                          OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
 +
 +    show_help_options(options, "Video options:",
 +                      OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Video options:",
 +                          OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
 +
 +    show_help_options(options, "Audio options:",
 +                      OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Audio options:",
 +                          OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
 +    show_help_options(options, "Subtitle options:",
 +                      OPT_SUBTITLE, 0, 0);
 +    printf("\n");
 +
 +    if (show_avoptions) {
 +        int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 +        show_help_children(avcodec_get_class(), flags);
 +        show_help_children(avformat_get_class(), flags);
 +#if CONFIG_SWSCALE
 +        show_help_children(sws_get_class(), flags);
 +#endif
 +        show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
 +        show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
 +    }
 +}
 +
 +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");
 +}
 +
 +enum OptGroup {
 +    GROUP_OUTFILE,
 +    GROUP_INFILE,
 +};
 +
 +static const OptionGroupDef groups[] = {
 +    [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
 +    [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
 +};
 +
 +static int open_files(OptionGroupList *l, const char *inout,
 +                      int (*open_file)(OptionsContext*, const char*))
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < l->nb_groups; i++) {
 +        OptionGroup *g = &l->groups[i];
 +        OptionsContext o;
 +
 +        init_options(&o);
 +        o.g = g;
 +
 +        ret = parse_optgroup(&o, g);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
 +                   "%s.\n", inout, g->arg);
 +            return ret;
 +        }
 +
 +        av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
 +        ret = open_file(&o, g->arg);
 +        uninit_options(&o);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
 +                   inout, g->arg);
 +            return ret;
 +        }
 +        av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
 +    }
 +
 +    return 0;
 +}
 +
 +int ffmpeg_parse_options(int argc, char **argv)
 +{
 +    OptionParseContext octx;
 +    uint8_t error[128];
 +    int ret;
 +
 +    memset(&octx, 0, sizeof(octx));
 +
 +    /* split the commandline into an internal representation */
 +    ret = split_commandline(&octx, argc, argv, options, groups,
 +                            FF_ARRAY_ELEMS(groups));
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
 +        goto fail;
 +    }
 +
 +    /* apply global options */
 +    ret = parse_optgroup(NULL, &octx.global_opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
 +        goto fail;
 +    }
 +
 +    /* configure terminal and setup signal handlers */
 +    term_init();
 +
 +    /* open input files */
 +    ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
 +        goto fail;
 +    }
 +
 +    /* create the complex filtergraphs */
 +    ret = init_complex_filters();
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
 +        goto fail;
 +    }
 +
 +    /* open output files */
 +    ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
 +        goto fail;
 +    }
 +
 +fail:
 +    uninit_parse_context(&octx);
 +    if (ret < 0) {
 +        av_strerror(ret, error, sizeof(error));
 +        av_log(NULL, AV_LOG_FATAL, "%s\n", error);
 +    }
 +    return ret;
 +}
 +
 +static int opt_progress(void *optctx, const char *opt, const char *arg)
 +{
 +    AVIOContext *avio = NULL;
 +    int ret;
 +
 +    if (!strcmp(arg, "-"))
 +        arg = "pipe:";
 +    ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
 +               arg, av_err2str(ret));
 +        return ret;
 +    }
 +    progress_avio = avio;
 +    return 0;
 +}
 +
 +#define OFFSET(x) offsetof(OptionsContext, x)
 +const OptionDef options[] = {
 +    /* main options */
 +#include "cmdutils_common_opts.h"
 +    { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
 +        "force format", "fmt" },
 +    { "y",              OPT_BOOL,                                    {              &file_overwrite },
 +        "overwrite output files" },
 +    { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
 +        "never overwrite output files" },
 +    { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
 +        "Ignore unknown stream types" },
 +    { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
 +        "Copy unknown stream types" },
 +    { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
 +        "preset name", "preset" },
 +    { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_map },
 +        "set input stream mapping",
 +        "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 +    { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
 +        "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
 +    { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
 +        "set metadata information of outfile from infile",
 +        "outfile[,metadata]:infile[,metadata]" },
 +    { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
 +        "set chapters mapping", "input_file_index" },
 +    { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
 +        "record or transcode \"duration\" seconds of audio/video",
 +        "duration" },
 +    { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
 +        "record or transcode stop time", "time_stop" },
 +    { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
 +        "set the limit file size in bytes", "limit_size" },
 +    { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
 +        "set the start time offset", "time_off" },
 +    { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
 +        "set the start time offset relative to EOF", "time_off" },
 +    { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
 +                        OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
 +        "enable/disable seeking by timestamp with -ss" },
 +    { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
 +                        OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
 +        "enable/disable accurate seeking with -ss" },
 +    { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
 +        "set the input ts offset", "time_off" },
 +    { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
 +                        OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
 +        "set the input ts scale", "scale" },
 +    { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
 +        "set the recording timestamp ('now' to set the current time)", "time" },
 +    { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
 +        "add metadata", "string=string" },
 +    { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
 +        "add program with specified streams", "title=string:st=number..." },
 +    { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
 +        "set the number of data frames to output", "number" },
 +    { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
 +        "add timings for benchmarking" },
 +    { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
 +      "add timings for each task" },
 +    { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
 +      "write program-readable progress information", "url" },
 +    { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
 +      "enable or disable interaction on standard input" },
 +    { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
 +        "set max runtime in seconds", "limit" },
 +    { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
 +        "dump each input packet" },
 +    { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
 +        "when dumping packets, also dump the payload" },
 +    { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
 +        "read input at native frame rate", "" },
 +    { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
 +        "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
 +        "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
 +    { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
 +        "video sync method", "" },
 +    { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
 +        "frame drop threshold", "" },
 +    { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
 +        "audio sync method", "" },
 +    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
 +        "audio drift threshold", "threshold" },
 +    { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
 +        "copy timestamps" },
 +    { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
 +        "shift input timestamps to start at 0 when using copyts" },
 +    { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
 +        "copy input stream time base when stream copying", "mode" },
 +    { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
 +        "finish encoding within shortest input" },
 +    { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(apad) },
 +        "audio pad", "" },
 +    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
 +        "timestamp discontinuity delta threshold", "threshold" },
 +    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
 +        "timestamp error delta threshold", "threshold" },
 +    { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
 +        "exit on error", "error" },
 +    { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
 +        "abort on the specified condition flags", "flags" },
 +    { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
 +        "copy initial non-keyframes" },
 +    { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
 +        "copy or discard frames before start time" },
 +    { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
 +        "set the number of frames to output", "number" },
 +    { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
 +        "force codec tag/fourcc", "fourcc/tag" },
 +    { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
 +                        OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_qscale },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
 +        "set profile", "profile" },
 +    { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
 +        "set stream filtergraph", "filter_graph" },
 +    { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
 +        "number of non-complex filter threads" },
 +    { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
 +        "read stream filtergraph description from a file", "filename" },
 +    { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
 +        "reinit filtergraph on input parameter changes", "" },
 +    { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
 +        "create a complex filtergraph", "graph_description" },
 +    { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
 +        "number of threads for -filter_complex" },
 +    { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
 +        "create a complex filtergraph", "graph_description" },
 +    { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
 +        "read complex filtergraph description from a file", "filename" },
 +    { "stats",          OPT_BOOL,                                    { &print_stats },
 +        "print progress report during encoding", },
 +    { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_attach },
 +        "add an attachment to the output file", "filename" },
 +    { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
 +                         OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
 +        "extract an attachment into a file", "filename" },
 +    { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
 +                        OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
 +    { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
 +        "print timestamp debugging info" },
 +    { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
 +        "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
 +    { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_INPUT,                                   { .off = OFFSET(discard) },
 +        "discard", "" },
 +    { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
 +        "disposition", "" },
 +    { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 +                                                                     { .off = OFFSET(thread_queue_size) },
 +        "set the maximum number of queued packets from the demuxer" },
 +
 +    /* video options */
 +    { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
 +        "set the number of video frames to output", "number" },
 +    { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
 +        "set frame rate (Hz value, fraction or abbreviation)", "rate" },
 +    { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
 +        "set frame size (WxH or abbreviation)", "size" },
 +    { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
 +        "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 +    { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
 +        "set pixel format", "format" },
 +    { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
 +        "set the number of bits per raw sample", "number" },
 +    { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
 +        "deprecated use -g 1" },
 +    { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
 +        "disable video" },
 +    { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
 +        "rate control override for specific intervals", "override" },
 +    { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
 +                      OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
 +        "force video codec ('copy' to copy stream)", "codec" },
 +    { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
 +        "Removed" },
 +    { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
 +        "Removed" },
 +    { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
 +        "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
 +    { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
 +        "select the pass number (1 to 3)", "n" },
 +    { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
 +        "select two pass log file name prefix", "prefix" },
 +    { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
 +        "this option is deprecated, use the yadif filter instead" },
 +    { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
 +        "calculate PSNR of compressed frames" },
 +    { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
 +        "dump video coding statistics to file" },
 +    { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
 +        "dump video coding statistics to file", "file" },
 +    { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
 +        "Version of the vstats format to use."},
 +    { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
 +        "set video filters", "filter_graph" },
 +    { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
 +        "specify intra matrix coeffs", "matrix" },
 +    { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
 +        "specify inter matrix coeffs", "matrix" },
 +    { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
 +        "specify intra matrix coeffs", "matrix" },
 +    { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
 +        "top=1/bottom=0/auto=-1 field first", "" },
 +    { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
 +        "force video tag/fourcc", "fourcc/tag" },
 +    { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
 +        "show QP histogram" },
 +    { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
 +        "force the selected framerate, disable the best supported framerate selection" },
 +    { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                      OPT_OUTPUT,                                                { .func_arg = opt_streamid },
 +        "set the value of an outfile streamid", "streamIndex:value" },
 +    { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
 +        "force key frames at specified timestamps", "timestamps" },
 +    { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
 +        "audio bitrate (please use -b:a)", "bitrate" },
 +    { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
 +        "video bitrate (please use -b:v)", "bitrate" },
 +    { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
 +        "use HW accelerated decoding", "hwaccel name" },
 +    { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
 +        "select a device for HW acceleration", "devicename" },
 +    { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
 +        "select output format used with HW accelerated decoding", "format" },
 +#if CONFIG_VDA || CONFIG_VIDEOTOOLBOX
 +    { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
 +#endif
 +    { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
 +        "show available HW acceleration methods" },
 +    { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
 +                          OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
 +        "automatically insert correct rotate filters" },
 +    { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,                        { &hwaccel_lax_profile_check},
 +        "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
 +
 +    /* audio options */
 +    { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
 +        "set the number of audio frames to output", "number" },
 +    { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
 +        "set audio quality (codec-specific)", "quality", },
 +    { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
 +        "set audio sampling rate (in Hz)", "rate" },
 +    { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
 +        "set number of audio channels", "channels" },
 +    { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
 +        "disable audio" },
 +    { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
 +        "force audio codec ('copy' to copy stream)", "codec" },
 +    { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                                { .func_arg = opt_old2new },
 +        "force audio tag/fourcc", "fourcc/tag" },
 +    { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
 +        "change audio volume (256=normal)" , "volume" },
 +    { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
 +                        OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
 +        "set sample format", "format" },
 +    { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
 +        "set channel layout", "layout" },
 +    { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
 +        "set audio filters", "filter_graph" },
 +    { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
 +      "set the maximum number of channels to try to guess the channel layout" },
 +
 +    /* subtitle options */
 +    { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
 +        "disable subtitle" },
 +    { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
 +        "force subtitle codec ('copy' to copy stream)", "codec" },
 +    { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
 +        , "force subtitle tag/fourcc", "fourcc/tag" },
 +    { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
 +        "fix subtitles duration" },
 +    { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
 +        "set canvas size (WxH or abbreviation)", "size" },
 +
 +    /* grab options */
 +    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
 +        "deprecated, use -channel", "channel" },
 +    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
 +        "deprecated, use -standard", "standard" },
 +    { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
 +
 +    /* muxer options */
 +    { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
 +        "set the maximum demux-decode delay", "seconds" },
 +    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
 +        "set the initial demux-decode delay", "seconds" },
 +    { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
 +        "override the options from ffserver", "" },
 +    { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
 +        "specify a file in which to print sdp information", "file" },
 +
 +    { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
 +        "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
 +
 +    { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
 +        "A comma-separated list of bitstream filters", "bitstream_filters" },
 +    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
 +        "deprecated", "audio bitstream_filters" },
 +    { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
 +        "deprecated", "video bitstream_filters" },
 +
 +    { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
 +        "set the audio options to the indicated preset", "preset" },
 +    { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
 +        "set the video options to the indicated preset", "preset" },
 +    { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
 +        "set the subtitle options to the indicated preset", "preset" },
 +    { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
 +        "set options from indicated preset file", "filename" },
 +
 +    { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
 +        "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
 +
 +    /* data codec support */
 +    { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
 +        "force data codec ('copy' to copy stream)", "codec" },
 +    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
 +        "disable data" },
 +
 +#if CONFIG_VAAPI
 +    { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
 +        "set VAAPI hardware device (DRM path or X11 display name)", "device" },
 +#endif
 +
 +#if CONFIG_QSV
 +    { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
 +        "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
 +#endif
 +
 +    { NULL, },
 +};



More information about the ffmpeg-cvslog mailing list