When flushing, the parser receives a dummy buffer with padding that lives on the stack of av_parser_parse2(). Certain parsers (e.g. Dolby E) only analyze the input, but don't repack it. When flushing, such parsers return a pointer to the stack buffer and a size of 0. And this is also what av_parser_parse2() returns.
Fix this by always resetting poutbuf in case poutbuf_size is zero. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com> --- This needs to be applied before https://ffmpeg.org/pipermail/ffmpeg-devel/2021-March/278004.html libavcodec/parser.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/parser.c b/libavcodec/parser.c index f4bc00da7d..11c41d6a0a 100644 --- a/libavcodec/parser.c +++ b/libavcodec/parser.c @@ -179,6 +179,9 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx, /* offset of the next frame */ s->next_frame_offset = s->cur_offset + index; s->fetch_timestamp = 1; + } else { + /* Don't return a pointer to dummy_buf. */ + *poutbuf = NULL; } if (index < 0) index = 0; -- 2.27.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
