mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-11 17:55:21 +00:00
avcodec/a64multienc: don't set incorrect packet size
This fixes invalid reads of the packet buffer in av_dup_packet Based on patch by Andreas Cadhalpun <andreas.cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
parent
39e4ed7c1d
commit
d96142e9af
@ -336,8 +336,8 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
||||
req_size = 0;
|
||||
/* any frames to encode? */
|
||||
if (c->mc_lifetime) {
|
||||
req_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
|
||||
if ((ret = ff_alloc_packet2(avctx, pkt, req_size)) < 0)
|
||||
int alloc_size = charset_size + c->mc_lifetime*(screen_size + colram_size);
|
||||
if ((ret = ff_alloc_packet2(avctx, pkt, alloc_size)) < 0)
|
||||
return ret;
|
||||
buf = pkt->data;
|
||||
|
||||
@ -359,6 +359,7 @@ static int a64multi_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
|
||||
|
||||
/* advance pointers */
|
||||
buf += charset_size;
|
||||
req_size += charset_size;
|
||||
}
|
||||
|
||||
/* write x frames to buf */
|
||||
|
Loading…
Reference in New Issue
Block a user