Hi,
I am trying to count the number of packets in an mpeg2 elementary stream.
Doing it in two different ways, I get different results.
*Method 1:*
I use "packet_buffer" data member of my AVForamtContext media handle(let's
name if "pFormatCtx"), and simly count the number of the nodes in the linked
list like this:
AVPacketList *packetBuffer;
> int packet_count;
> packetBuffer = pFormatCtx -> packet_buffer;
> while(packetBuffer->next != NULL){
> packet_count++;
> packetBuffer = packetBuffer->next;
> }
>
*Method 2:*
I increment a counter whenever I read a packet using "av_read_frame()":
int packet_count;
> while(av_read_frame(pFormatCtx, &packet)>=0) {
> packet_count++;
> /*some code*/
> }
>
The first method results in "packet_count = 76", the second results in
"packet_count=375", while I know that "av_read_frame" in my case is simply
reading the "pkt" of the linked list "packet_buffer"(which is in
AVFormatContext object)
So, why is the result for the two case so different?
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