ffmpeg | branch: master | Zhao Zhili <zhiliz...@tencent.com> | Thu Mar  6 
15:56:27 2025 +0800| [1c170613975d3cbcbb5aaa469b4a3cf0df5d4c2b] | committer: 
Zhao Zhili

avcodec/decode: Fix avcodec parameters when bsfs are enable by decoder

BSF can update extradata, e.g., vvc_mp4toannexb. If we don't copy
bsf->par_out back to avcodec context, decoder can get extradata in
mp4 format, while packets are in annexb format.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1c170613975d3cbcbb5aaa469b4a3cf0df5d4c2b
---

 libavcodec/decode.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index fca0c7ff58..14702fb041 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -202,6 +202,9 @@ static int decode_bsfs_init(AVCodecContext *avctx)
         goto fail;
 
     ret = av_bsf_init(avci->bsf);
+    if (ret < 0)
+        goto fail;
+    ret = avcodec_parameters_to_context(avctx, avci->bsf->par_out);
     if (ret < 0)
         goto fail;
 

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