From 1c170613975d3cbcbb5aaa469b4a3cf0df5d4c2b Mon Sep 17 00:00:00 2001
From: Zhao Zhili <zhilizhao@tencent.com>
Date: Thu, 6 Mar 2025 15:56:27 +0800
Subject: [PATCH] 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.
---
 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;