This allows simple and generic limiting of allocations used for packets.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
*/
int seekable;
+
+ /**
+ * max filesize, used to limit allocations
+ * This field is internal to libavformat and access from outside is not allowed.
+ */
+ int64_t maxsize;
} AVIOContext;
/* unbuffered I/O */
int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
{
- int ret= av_new_packet(pkt, size);
+ int ret;
+
+ if(s->maxsize>0){
+ int64_t remaining= s->maxsize - avio_tell(s);
+ if(remaining>=0)
+ size= FFMIN(size, remaining);
+ }
+
+ ret= av_new_packet(pkt, size);
if(ret<0)
return ret;