static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){ ASFContext *asf = s->priv_data; int rsize = 1; int num = avio_r8(pb); int64_t ts0, ts1; asf->packet_segments--; asf->packet_key_frame = num >> 7; asf->stream_index = asf->asfid2avid[num & 0x7f]; // sequence should be ignored! DO_2BITS(asf->packet_property >> 4, asf->packet_seq, 0); DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0); DO_2BITS(asf->packet_property, asf->packet_replic_size, 0); //printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size); if (asf->packet_replic_size >= 8) { asf->packet_obj_size = avio_rl32(pb); if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){ av_log(s, AV_LOG_ERROR, "packet_obj_size invalid\n"); asf->packet_frag_timestamp = avio_rl32(pb); // timestamp if(asf->packet_replic_size >= 8+38+4){ // for(i=0; i<asf->packet_replic_size-8; i++) // av_log(s, AV_LOG_DEBUG, "%02X ",avio_r8(pb)); // av_log(s, AV_LOG_DEBUG, "\n"); avio_skip(pb, 10); ts0= avio_rl64(pb); ts1= avio_rl64(pb); avio_skip(pb, 12); avio_rl32(pb); avio_skip(pb, asf->packet_replic_size - 8 - 38 - 4); if(ts0!= -1) asf->packet_frag_timestamp= ts0/10000; else asf->packet_frag_timestamp= AV_NOPTS_VALUE; }else avio_skip(pb, asf->packet_replic_size - 8); rsize += asf->packet_replic_size; // FIXME - check validity } else if (asf->packet_replic_size==1){ // multipacket - frag_offset is beginning timestamp asf->packet_time_start = asf->packet_frag_offset; asf->packet_frag_offset = 0; asf->packet_frag_timestamp = asf->packet_timestamp; asf->packet_time_delta = avio_r8(pb); rsize++; }else if(asf->packet_replic_size!=0){ av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size); if (asf->packet_flags & 0x01) { DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal if(asf->packet_frag_size > asf->packet_size_left - rsize){ if (asf->packet_frag_size > asf->packet_size_left - rsize + asf->packet_padsize) { av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid (%d-%d)\n", asf->packet_size_left, rsize); } else { int diff = asf->packet_frag_size - (asf->packet_size_left - rsize); asf->packet_size_left += diff; asf->packet_padsize -= diff; //printf("Fragsize %d\n", asf->packet_frag_size); } else { asf->packet_frag_size = asf->packet_size_left - rsize; //printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize); if (asf->packet_replic_size == 1) { asf->packet_multi_size = asf->packet_frag_size; if (asf->packet_multi_size > asf->packet_size_left) asf->packet_size_left -= rsize; //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize); return 0;