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Make sure av_new_packet() initializes the data and destruct pointers. 

Some code does call av_free_packet() on failed av_new_packets(), this
prevents the freeing of uninitialized pointers.

Originally committed as revision 20801 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2009-12-11 21:49:30 +00:00
parent 15a316c014
commit a0b468f5db
1 changed files with 7 additions and 5 deletions
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12
libavcodec/avpacket.c
View File

@ -47,18 +47,20 @@ void av_init_packet(AVPacket *pkt)
int av_new_packet(AVPacket *pkt, int size)
{
uint8_t *data;
if((unsigned)size > (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
return AVERROR(ENOMEM);
uint8_t *data= NULL;
if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!data)
return AVERROR(ENOMEM);
if (data){
memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
}else
size=0;
av_init_packet(pkt);
pkt->data = data;
pkt->size = size;
pkt->destruct = av_destruct_packet;
if(!data)
return AVERROR(ENOMEM);
return 0;
}