[FFmpeg-devel] [PATCH] avcodec/ac4dec: process immersive stereo

[Peter Ross]

---
This doesn't apply to git master, but is for anyone with AC-4 decoder branch.

 libavcodec/ac4dec.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libavcodec/ac4dec.c b/libavcodec/ac4dec.c
index 9ac866eb4f..e9f7991c9e 100644
--- a/libavcodec/ac4dec.c
+++ b/libavcodec/ac4dec.c
@@ -1171,6 +1171,13 @@ static int ac4_substream_info_chan(AC4DecodeContext *s, SubstreamGroupInfo *g,
     if (ssi->channel_mode == 16)
         ssi->channel_mode += variable_bits(gb, 2);
 
+    if (ssi->channel_mode == 6) {
+        for (int i = 0; i < s->nb_presentations; i++)
+            if (s->pinfo[i].presentation_version == 2) {
+                ssi->channel_mode = 1; /* immersive stereo */
+                break;
+            }
+
     if (ssi->channel_mode == 11 ||
         ssi->channel_mode == 12 ||
         ssi->channel_mode == 13 ||
-- 
2.45.2

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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