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ffmpeg.wasm-core
Commit 06137a49 authored by Michael Niedermayer's avatar Michael Niedermayer
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mpeg4videodec: check resolution marker bits 

Signed-off-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parent 5717689c
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Showing with 3 additions and 3 deletions
libavcodec/mpeg4videodec.c
View file @ 06137a49
......@@ -1626,11 +1626,11 @@ static int decode_vol_header(MpegEncContext *s, GetBitContext *gb){
if (s->shape != BIN_ONLY_SHAPE) {
if (s->shape == RECT_SHAPE) {
skip_bits1(gb); /* marker */
check_marker(gb, "before width");
width = get_bits(gb, 13);
skip_bits1(gb); /* marker */
check_marker(gb, "before height");
height = get_bits(gb, 13);
skip_bits1(gb); /* marker */
check_marker(gb, "after height");
if(width && height && !(s->width && s->codec_tag == AV_RL32("MP4S"))){ /* they should be non zero but who knows ... */
if (s->width && s->height &&
(s->width != width || s->height != height))
......
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