On Tue, 27 Jun 2023, Marton Balint wrote:
AVID IMX MPEG2 files in MOV seems to have extradata like this:
00000000: 0000 0018 4143 4c52 4143 4c52 3030 3031 ....ACLRACLR0001
00000010: 0000 0001 0000 0000 ........
Will apply.
Regards,
Marton
Signed-off-by: Marton Balint <c...@passwd.hu>
---
libavcodec/mpeg12dec.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 27c862ffb2..27b45c6fc4 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -2522,6 +2522,11 @@ static int decode_chunks(AVCodecContext *avctx, AVFrame
*picture,
}
picture_start_code_seen = 1;
+ if (buf == avctx->extradata && avctx->codec_tag ==
AV_RL32("AVmp")) {
+ av_log(avctx, AV_LOG_WARNING, "ignoring picture start code in AVmp
extradata\n");
+ break;
+ }
+
if (s2->width <= 0 || s2->height <= 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid frame dimensions %dx%d.\n",
s2->width, s2->height);
--
2.35.3
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