Fixes: poc-iamf-2025-04
Found-by: 苏童 <220235...@seu.edu.cn>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavformat/iamfdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/iamfdec.c b/libavformat/iamfdec.c
index 0f273bdd438..3a6276dcdea 100644
--- a/libavformat/iamfdec.c
+++ b/libavformat/iamfdec.c
@@ -126,7 +126,7 @@ static int iamf_read_header(AVFormatContext *s)
// Swap back and side stream ids as our native channel layout ordering
doen't match the
// order from ITU-R - BS.2051-3 for Systems I and J (where side
channels come before back ones).
- if (back_substream_id >= 0 &&
av_channel_layout_compare(&layer->ch_layout,
+ if (back_substream_id >= 0 && side_substream_id >= 0 &&
av_channel_layout_compare(&layer->ch_layout,
&(AVChannelLayout)AV_CHANNEL_LAYOUT_9POINT1POINT6)) {
const IAMFSubStream *back_substream =
&audio_element->substreams[back_substream_id];
const IAMFSubStream *side_substream =
&audio_element->substreams[side_substream_id];
--
2.49.0
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