[FFmpeg-cvslog] avconv: cosmetics, reformat transcode_init()
Anton Khirnov
git at videolan.org
Tue Nov 22 03:10:59 CET 2011
ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Sun Nov 20 12:32:27 2011 +0100| [03f30c837ba5f55e5bd98d32618173e8cd77e587] | committer: Anton Khirnov
avconv: cosmetics, reformat transcode_init()
Fix spacing, vertically align, break some long lines, add some empty
lines for readability.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=03f30c837ba5f55e5bd98d32618173e8cd77e587
---
avconv.c | 83 ++++++++++++++++++++++++++++++++++---------------------------
1 files changed, 46 insertions(+), 37 deletions(-)
diff --git a/avconv.c b/avconv.c
index de737ec..c962b2b 100644
--- a/avconv.c
+++ b/avconv.c
@@ -1977,7 +1977,7 @@ static int transcode_init(OutputFile *output_files,
}
/* output stream init */
- for(i=0;i<nb_output_files;i++) {
+ for (i = 0; i < nb_output_files; i++) {
oc = output_files[i].ctx;
if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
av_dump_format(oc, i, oc->filename, 1);
@@ -1989,17 +1989,17 @@ static int transcode_init(OutputFile *output_files,
/* for each output stream, we compute the right encoding parameters */
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
- oc = output_files[ost->file_index].ctx;
+ oc = output_files[ost->file_index].ctx;
ist = &input_streams[ost->source_index];
if (ost->attachment_filename)
continue;
- codec = ost->st->codec;
+ codec = ost->st->codec;
icodec = ist->st->codec;
- ost->st->disposition = ist->st->disposition;
- codec->bits_per_raw_sample= icodec->bits_per_raw_sample;
+ ost->st->disposition = ist->st->disposition;
+ codec->bits_per_raw_sample = icodec->bits_per_raw_sample;
codec->chroma_sample_location = icodec->chroma_sample_location;
if (ost->stream_copy) {
@@ -2010,52 +2010,55 @@ static int transcode_init(OutputFile *output_files,
}
/* if stream_copy is selected, no need to decode or encode */
- codec->codec_id = icodec->codec_id;
+ codec->codec_id = icodec->codec_id;
codec->codec_type = icodec->codec_type;
- if(!codec->codec_tag){
- if( !oc->oformat->codec_tag
- || av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id
- || av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
+ if (!codec->codec_tag) {
+ if (!oc->oformat->codec_tag ||
+ av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
+ av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
codec->codec_tag = icodec->codec_tag;
}
- codec->bit_rate = icodec->bit_rate;
+ codec->bit_rate = icodec->bit_rate;
codec->rc_max_rate = icodec->rc_max_rate;
codec->rc_buffer_size = icodec->rc_buffer_size;
- codec->extradata= av_mallocz(extra_size);
+ codec->extradata = av_mallocz(extra_size);
if (!codec->extradata) {
return AVERROR(ENOMEM);
}
memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
- codec->extradata_size= icodec->extradata_size;
- if(!copy_tb && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) && av_q2d(ist->st->time_base) < 1.0/500){
- codec->time_base = icodec->time_base;
+ codec->extradata_size = icodec->extradata_size;
+ if (!copy_tb &&
+ av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base) &&
+ av_q2d(ist->st->time_base) < 1.0/500) {
+ codec->time_base = icodec->time_base;
codec->time_base.num *= icodec->ticks_per_frame;
av_reduce(&codec->time_base.num, &codec->time_base.den,
codec->time_base.num, codec->time_base.den, INT_MAX);
- }else
+ } else
codec->time_base = ist->st->time_base;
+
switch(codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
if(audio_volume != 256) {
av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n");
exit_program(1);
}
- codec->channel_layout = icodec->channel_layout;
- codec->sample_rate = icodec->sample_rate;
- codec->channels = icodec->channels;
- codec->frame_size = icodec->frame_size;
+ codec->channel_layout = icodec->channel_layout;
+ codec->sample_rate = icodec->sample_rate;
+ codec->channels = icodec->channels;
+ codec->frame_size = icodec->frame_size;
codec->audio_service_type = icodec->audio_service_type;
- codec->block_align= icodec->block_align;
+ codec->block_align = icodec->block_align;
break;
case AVMEDIA_TYPE_VIDEO:
- codec->pix_fmt = icodec->pix_fmt;
- codec->width = icodec->width;
- codec->height = icodec->height;
- codec->has_b_frames = icodec->has_b_frames;
+ codec->pix_fmt = icodec->pix_fmt;
+ codec->width = icodec->width;
+ codec->height = icodec->height;
+ codec->has_b_frames = icodec->has_b_frames;
if (!codec->sample_aspect_ratio.num) {
- codec->sample_aspect_ratio =
+ codec->sample_aspect_ratio =
ost->st->sample_aspect_ratio =
ist->st->sample_aspect_ratio.num ? ist->st->sample_aspect_ratio :
ist->st->codec->sample_aspect_ratio.num ?
@@ -2063,7 +2066,7 @@ static int transcode_init(OutputFile *output_files,
}
break;
case AVMEDIA_TYPE_SUBTITLE:
- codec->width = icodec->width;
+ codec->width = icodec->width;
codec->height = icodec->height;
break;
case AVMEDIA_TYPE_DATA:
@@ -2075,29 +2078,35 @@ static int transcode_init(OutputFile *output_files,
} else {
if (!ost->enc)
ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
+
ist->decoding_needed = 1;
ost->encoding_needed = 1;
+
switch(codec->codec_type) {
case AVMEDIA_TYPE_AUDIO:
- ost->fifo= av_fifo_alloc(1024);
+ ost->fifo = av_fifo_alloc(1024);
if (!ost->fifo) {
return AVERROR(ENOMEM);
}
ost->reformat_pair = MAKE_SFMT_PAIR(AV_SAMPLE_FMT_NONE,AV_SAMPLE_FMT_NONE);
+
if (!codec->sample_rate)
codec->sample_rate = icodec->sample_rate;
choose_sample_rate(ost->st, ost->enc);
codec->time_base = (AVRational){1, codec->sample_rate};
+
if (codec->sample_fmt == AV_SAMPLE_FMT_NONE)
codec->sample_fmt = icodec->sample_fmt;
choose_sample_fmt(ost->st, ost->enc);
+
if (!codec->channels)
codec->channels = icodec->channels;
codec->channel_layout = icodec->channel_layout;
if (av_get_channel_layout_nb_channels(codec->channel_layout) != codec->channels)
codec->channel_layout = 0;
- ost->audio_resample = codec->sample_rate != icodec->sample_rate || audio_sync_method > 1;
- icodec->request_channels = codec->channels;
+
+ ost->audio_resample = codec-> sample_rate != icodec->sample_rate || audio_sync_method > 1;
+ icodec->request_channels = codec-> channels;
ost->resample_sample_fmt = icodec->sample_fmt;
ost->resample_sample_rate = icodec->sample_rate;
ost->resample_channels = icodec->channels;
@@ -2144,9 +2153,9 @@ static int transcode_init(OutputFile *output_files,
codec->bits_per_raw_sample= 0;
}
- ost->resample_height = icodec->height;
- ost->resample_width = icodec->width;
- ost->resample_pix_fmt= icodec->pix_fmt;
+ ost->resample_height = icodec->height;
+ ost->resample_width = icodec->width;
+ ost->resample_pix_fmt = icodec->pix_fmt;
if (!ost->frame_rate.num)
ost->frame_rate = ist->st->r_frame_rate.num ? ist->st->r_frame_rate : (AVRational){25,1};
@@ -2198,8 +2207,8 @@ static int transcode_init(OutputFile *output_files,
}
}
if(codec->codec_type == AVMEDIA_TYPE_VIDEO){
- int size= codec->width * codec->height;
- bit_buffer_size= FFMAX(bit_buffer_size, 6*size + 200);
+ int size = codec->width * codec->height;
+ bit_buffer_size = FFMAX(bit_buffer_size, 6*size + 200);
}
}
@@ -2215,7 +2224,7 @@ static int transcode_init(OutputFile *output_files,
for (i = 0; i < nb_output_streams; i++) {
ost = &output_streams[i];
if (ost->encoding_needed) {
- AVCodec *codec = ost->enc;
+ AVCodec *codec = ost->enc;
AVCodecContext *dec = input_streams[ost->source_index].st->codec;
if (!codec) {
snprintf(error, sizeof(error), "Encoder (codec id %d) not found for output stream #%d:%d",
@@ -2289,7 +2298,7 @@ static int transcode_init(OutputFile *output_files,
dump_format:
/* dump the file output parameters - cannot be done before in case
of stream copy */
- for(i=0;i<nb_output_files;i++) {
+ for (i = 0; i < nb_output_files; i++) {
av_dump_format(output_files[i].ctx, i, output_files[i].ctx->filename, 1);
}
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