ffmpeg | branch: master | James Almer <jamr...@gmail.com> | Thu Jun 5 21:07:14 2025 -0300| [efbcd312060a9598e7e63f0e8ca8515d8ce109ef] | committer: James Almer
avcodec/ac3_parser: use a padded buffer in av_ac3_parse_header() The GetBitContext API requires the buffer to be padded, and the documentation for av_ac3_parse_header() does not specify it, so use a temporary local buffer. Signed-off-by: James Almer <jamr...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=efbcd312060a9598e7e63f0e8ca8515d8ce109ef --- libavcodec/ac3_parser.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c index 69989690dd..1d9a40a8d9 100644 --- a/libavcodec/ac3_parser.c +++ b/libavcodec/ac3_parser.c @@ -202,9 +202,13 @@ int av_ac3_parse_header(const uint8_t *buf, size_t size, { GetBitContext gb; AC3HeaderInfo hdr; + uint8_t tmp[32 + AV_INPUT_BUFFER_PADDING_SIZE]; int err; - err = init_get_bits8(&gb, buf, size); + size = FFMIN(32, size); + memcpy(tmp, buf, size); + memset(tmp + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); + err = init_get_bits8(&gb, tmp, size); if (err < 0) return AVERROR_INVALIDDATA; err = ff_ac3_parse_header(&gb, &hdr); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
