apps/ffmpeg-rockchip
1
0
Fork 0
mirror of https://github.com/nyanmisaka/ffmpeg-rockchip.git synced 2025-10-31 12:36:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

avformat/sccenc: avoid potential invalid access

Browse Source 
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This commit is contained in:
Limin Wang
2022-04-10 22:20:04 +08:00
parent 4607868b98
commit 8e828ee1ad
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavformat/sccenc.c
View File

@@ -72,11 +72,11 @@ static int scc_write_packet(AVFormatContext *avf, AVPacket *pkt)
s = (int)(pts / 1000) % 60; s = (int)(pts / 1000) % 60;
f = (int)(pts % 1000) / 33; f = (int)(pts % 1000) / 33;
for (i = 0; i < pkt->size; i+=3) { for (i = 0; i < pkt->size - 2; i+=3) {
if (pkt->data[i] == 0xfc && ((pkt->data[i + 1] != 0x80 || pkt->data[i + 2] != 0x80))) if (pkt->data[i] == 0xfc && ((pkt->data[i + 1] != 0x80 || pkt->data[i + 2] != 0x80)))
break; break;
} }
if (i >= pkt->size) if (i >= pkt->size - 2)
return 0; return 0;
if (!scc->inside && (scc->prev_h != h || scc->prev_m != m || scc->prev_s != s || scc->prev_f != f)) { if (!scc->inside && (scc->prev_h != h || scc->prev_m != m || scc->prev_s != s || scc->prev_f != f)) {