When using an 'agroup' within var_stream_map - the audio stream is being added to the master playlist file as both an audio rendition and an individual stream (with an AUDIO reference back to itself).
This patch ensures an audio rendition does not also appear within the stream info list. What follows is an example of the command to create this issue and the contents of the master playlist before and after this patch is applied: ffmpeg -i in.ts -b:a:0 128k -b:v:0 1800k -b:v:1 1024k -map 0:a \ -map 0:v -map 0:v -f hls -var_stream_map "a:0,agroup:audio_0 "\ "v:0,agroup:audio_0 v:1,agroup:audio_0" -master_pl_name \ tv_hls.m3u8 tv_hls_%v.m3u8 Before: #EXTM3U #EXT-X-VERSION:3 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_audio_0",NAME="audio_0",DEFAULT=YES,URI="tv_hls_0.m3u8" #EXT-X-STREAM-INF:BANDWIDTH=140800,AUDIO="group_audio_0" tv_hls_0.m3u8 #EXT-X-STREAM-INF:BANDWIDTH=2120800,RESOLUTION=1920x1080,AUDIO="group_audio_0" tv_hls_1.m3u8 #EXT-X-STREAM-INF:BANDWIDTH=1267200,RESOLUTION=1920x1080,AUDIO="group_audio_0" tv_hls_2.m3u8 After: #EXTM3U #EXT-X-VERSION:3 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="group_audio_0",NAME="audio_0",DEFAULT=YES,URI="tv_hls_0.m3u8" #EXT-X-STREAM-INF:BANDWIDTH=2120800,RESOLUTION=1920x1080,AUDIO="group_audio_0" tv_hls_1.m3u8 #EXT-X-STREAM-INF:BANDWIDTH=1267200,RESOLUTION=1920x1080,AUDIO="group_audio_0" tv_hls_2.m3u8 Signed-off-by: Brendan McGrath <red...@redmandi.dyndns.org> --- Pre-patch - the hls stream I was testing would not play on the iOS devices I was testing with. With the patch applied - they now play the stream libavformat/hlsenc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c index e36120c..a75853b 100644 --- a/libavformat/hlsenc.c +++ b/libavformat/hlsenc.c @@ -1172,6 +1172,9 @@ static int create_master_playlist(AVFormatContext *s, for (i = 0; i < hls->nb_varstreams; i++) { vs = &(hls->var_streams[i]); + if (!vs->has_video && !vs->has_subtitle && vs->agroup) + continue; + m3u8_name_size = strlen(vs->m3u8_name) + 1; m3u8_rel_name = av_malloc(m3u8_name_size); if (!m3u8_rel_name) { -- 2.7.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel