[FFmpeg-devel] [PATCH] lavf: allow av_find_best_stream to return AV_DISPOSITION_*_IMPAIRED wanted_streams

[Marton Balint]

Previously these type of streams were not returned even if wanted stream was
set to a stream of such. Now they are only skipped if they are not wanted
streams.

Fixes ffplay -sst <stream number> out.ts where stream number is a *_IMPAIRED stream.

Signed-off-by: Marton Balint <cus at passwd.hu>
---
 libavformat/utils.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 2be4279..5cb7561 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -3373,7 +3373,8 @@ int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type,
             continue;
         if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
             continue;
-        if (st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED |
+        if (wanted_stream_nb != real_stream_index &&
+            st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED |
                                AV_DISPOSITION_VISUAL_IMPAIRED))
             continue;
         if (type == AVMEDIA_TYPE_AUDIO && !avctx->channels)
-- 
1.8.4