stream selection.
Make the counting starts from 0, and disable the corresponding playbck
when the selected stream number is negative.
See the thread:
" [FFmpeg-devel] [PATCH] Add documentation for -ast, -vst, -sst".
Originally committed as revision 17693 to svn://svn.ffmpeg.org/ffmpeg/trunk
ic->streams[i]->discard = AVDISCARD_ALL;
switch(enc->codec_type) {
case CODEC_TYPE_AUDIO:
- if ((audio_index < 0 || wanted_audio_stream-- > 0) && !audio_disable)
+ if (wanted_audio_stream-- >= 0 && !audio_disable)
audio_index = i;
break;
case CODEC_TYPE_VIDEO:
- if ((video_index < 0 || wanted_video_stream-- > 0) && !video_disable)
+ if (wanted_video_stream-- >= 0 && !video_disable)
video_index = i;
break;
case CODEC_TYPE_SUBTITLE: