That number represents the number of streams, not the number of channels
---
libavformat/mpegts.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 97da0a3..f4250c8 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1758,10 +1758,9 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc,
AVStream *st, int stream_type
if (channel_config_code <= 0x8) {
st->codec->extradata[9] = channels = channel_config_code
? channel_config_code : 2;
st->codec->extradata[18] = channels > 2;
- st->codec->extradata[19] = channel_config_code;
+ st->codec->extradata[19] = channels -
opus_coupled_stream_cnt[channel_config_code];
if (channel_config_code == 0) { /* Dual Mono */
st->codec->extradata[18] = 255; /* Mapping */
- st->codec->extradata[19] = 2; /* Stream Count */
}
st->codec->extradata[20] =
opus_coupled_stream_cnt[channel_config_code];
memcpy(&st->codec->extradata[21],
opus_channel_map[channels - 1], channels);
--
2.1.3
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