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ffmpeg.wasm-core
Commit b9d1f5bf authored by Zhao Zhili's avatar Zhao Zhili Committed by Michael Niedermayer
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avcodec/h264dec: check number of SPS in is_extra 

Signed-off-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
parent 9f60c585
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libavcodec/h264dec.c
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...@@ -855,6 +855,8 @@ static int is_extra(const uint8_t *buf, int buf_size) ...@@ -855,6 +855,8 @@ static int is_extra(const uint8_t *buf, int buf_size)
{ {
int cnt= buf[5]&0x1f; int cnt= buf[5]&0x1f;
const uint8_t *p= buf+6; const uint8_t *p= buf+6;
if (!cnt)
return 0;
while(cnt--){ while(cnt--){
int nalsize= AV_RB16(p) + 2; int nalsize= AV_RB16(p) + 2;
if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7) if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
......
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