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ffmpeg: add -apad option which injects a apad filter only in the presence of video streams

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-05-08 23:43:19 +02:00
parent 410905f7fd
commit 33ff943f70
4 changed files with 25 additions and 0 deletions
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15
ffmpeg_filter.c
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@@ -424,6 +424,7 @@ static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter,
OutputStream *ost = ofilter->ost;
AVCodecContext *codec = ost->st->codec;
AVFilterContext *last_filter = out->filter_ctx;
OutputFile *of = output_files[ost->file_index];
int pad_idx = out->pad_idx;
char *sample_fmts, *sample_rates, *channel_layouts;
char name[255];
@@ -519,6 +520,20 @@ static int configure_output_audio_filter(FilterGraph *fg, OutputFilter *ofilter,
AUTO_INSERT_FILTER("-vol", "volume", args);
}
if (ost->apad && of->shortest) {
char args[256];
int i;
for (i=0; i<of->ctx->nb_streams; i++)
if (of->ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
break;
if (i<of->ctx->nb_streams) {
snprintf(args, sizeof(args), "%s", ost->apad);
AUTO_INSERT_FILTER("-apad", "apad", args);
}
}
ret = insert_trim(ost, &last_filter, &pad_idx);
if (ret < 0)
return ret;