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Check for alloc failures.

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Originally committed as revision 17497 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-02-21 20:57:46 +00:00
parent 8ebe099ac0
commit c60a0f85ee
1 changed files with 9 additions and 4 deletions
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13
libavformat/avidec.c
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@ -718,7 +718,7 @@ resync:
if(avi->stream_index >= 0){
AVStream *st= s->streams[ avi->stream_index ];
AVIStream *ast= st->priv_data;
int size;
int size, err;
if(ast->sample_size <= 1) // minorityreport.AVI block_align=1024 sample_size=1 IMA-ADPCM
size= INT_MAX;
@ -730,14 +730,19 @@ resync:
if(size > ast->remaining)
size= ast->remaining;
avi->last_pkt_pos= url_ftell(pb);
av_get_packet(pb, pkt, size);
err= av_get_packet(pb, pkt, size);
if(err<0)
return err;
if(ast->has_pal && pkt->data && pkt->size<(unsigned)INT_MAX/2){
void *ptr= av_realloc(pkt->data, pkt->size + 4*256 + FF_INPUT_BUFFER_PADDING_SIZE);
if(ptr){
ast->has_pal=0;
pkt->size += 4*256;
pkt->data = av_realloc(pkt->data, pkt->size + FF_INPUT_BUFFER_PADDING_SIZE);
if(pkt->data)
pkt->data= ptr;
memcpy(pkt->data + pkt->size - 4*256, ast->pal, 4*256);
}else
av_log(s, AV_LOG_ERROR, "Failed to append palette\n");
}
if (CONFIG_DV_DEMUXER && avi->dv_demux) {