void ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt, int (*compare)(AVFormatContext *, AVPacket *, AVPacket *)) { AVPacketList **next_point, *this_pktl; this_pktl = av_mallocz(sizeof(AVPacketList)); this_pktl->pkt= *pkt; pkt->destruct= NULL; // do not free original but only the copy av_dup_packet(&this_pktl->pkt); // duplicate the packet if it uses non-alloced memory if(s->streams[pkt->stream_index]->last_in_packet_buffer){ next_point = &(s->streams[pkt->stream_index]->last_in_packet_buffer->next); }else next_point = &s->packet_buffer; if(*next_point){ if(compare(s, &s->packet_buffer_end->pkt, pkt)){ while(!compare(s, &(*next_point)->pkt, pkt)){ next_point= &(*next_point)->next; } goto next_non_null; }else{ next_point = &(s->packet_buffer_end->next); } } assert(!*next_point); s->packet_buffer_end= this_pktl; next_non_null: this_pktl->next= *next_point; s->streams[pkt->stream_index]->last_in_packet_buffer= *next_point= this_pktl; }