[FFmpeg-devel] [PATCH] avcodec/h264dec: check number of SPS in is_extra

[Zhao Zhili]

---
 libavcodec/h264dec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index bffce52..6f7530d 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -871,6 +871,8 @@ static int is_extra(const uint8_t *buf, int buf_size)
 {
 int cnt= buf[5]&0x1f;
 const uint8_t *p= buf+6;
+if (!cnt)
+return 0;
 while(cnt--){
 int nalsize= AV_RB16(p) + 2;
 if(nalsize > buf_size - (p-buf) || (p[2] & 0x9F) != 7)
-- 
2.9.5



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Re: [FFmpeg-devel] [PATCH] avcodec/h264dec: check number of SPS in is_extra

[Michael Niedermayer]

On Thu, Sep 06, 2018 at 05:15:11PM +0800, Zhao Zhili wrote:
> ---
>  libavcodec/h264dec.c | 2 ++
>  1 file changed, 2 insertions(+)

will apply

thx

[...]
-- 
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Breaking DRM is a little like attempting to break through a door even
though the window is wide open and the only thing in the house is a bunch
of things you dont want and which you would get tomorrow for free anyway


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