Lines Matching defs:asf
24 #include "asf.h"
269 /* write an asf chunk (only used in streaming case) */
272 ASFContext *asf = s->priv_data;
279 avio_wl32(pb, asf->seqno);//sequence number
282 asf->seqno++;
298 ASFContext *asf = s->priv_data;
317 duration = asf->duration + PREROLL_TIME * 10000;
330 if (asf->is_streamed) {
347 avio_wl64(pb, asf->nb_packets); /* number of packets */
349 avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
351 avio_wl32(pb, (asf->is_streamed || !pb->seekable ) ? 3 : 2); /* ??? */
399 // ASFStream *stream = &asf->streams[n];
402 asf->streams[n].num = n + 1;
403 asf->streams[n].seq = 0;
527 if (asf->is_streamed) {
543 asf->data_offset = cur_pos;
547 avio_wl64(pb, asf->nb_packets); /* nb packets */
555 ASFContext *asf = s->priv_data;
558 asf->nb_packets = 0;
560 asf->last_indexed_pts = 0;
561 asf->index_ptr = av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK );
562 asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
563 asf->nb_index_count = 0;
564 asf->maximum_packet = 0;
566 /* the data-chunk-size has to be 50, which is data_size - asf->data_offset
567 * at the moment this function is done. It is needed to use asf as
570 //av_free(asf);
576 asf->packet_nb_payloads = 0;
577 asf->packet_timestamp_start = -1;
578 asf->packet_timestamp_end = -1;
579 ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
587 ASFContext *asf = s->priv_data;
589 asf->is_streamed = 1;
602 ASFContext *asf = s->priv_data;
610 if(asf->multi_payloads_present)
619 if (asf->multi_payloads_present)
639 if (asf->multi_payloads_present)
649 ASFContext *asf = s->priv_data;
652 assert(asf->packet_timestamp_end >= asf->packet_timestamp_start);
654 if (asf->is_streamed) {
660 asf->packet_timestamp_start,
661 asf->packet_timestamp_end - asf->packet_timestamp_start,
662 asf->packet_nb_payloads,
663 asf->packet_size_left
666 packet_filled_size = PACKET_SIZE - asf->packet_size_left;
667 assert(packet_hdr_size <= asf->packet_size_left);
668 memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
670 avio_write(s->pb, asf->packet_buf, s->packet_size - packet_hdr_size);
673 asf->nb_packets++;
674 asf->packet_nb_payloads = 0;
675 asf->packet_timestamp_start = -1;
676 asf->packet_timestamp_end = -1;
677 ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
691 ASFContext *asf = s->priv_data;
692 AVIOContext *pb = &asf->pb;
713 if (asf->multi_payloads_present){
728 ASFContext *asf = s->priv_data;
734 if (asf->packet_timestamp_start == -1) {
735 asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT);
737 asf->packet_size_left = PACKET_SIZE;
738 if (asf->multi_payloads_present){
744 asf->packet_timestamp_start = timestamp;
748 frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1;
762 avio_write(&asf->pb, buf, payload_len);
764 if (asf->multi_payloads_present)
765 asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
767 asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
768 asf->packet_timestamp_end = timestamp;
770 asf->packet_nb_payloads++;
777 if (!asf->multi_payloads_present)
779 else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1))
787 ASFContext *asf = s->priv_data;
796 stream = &asf->streams[pkt->stream_index];
804 asf->duration= FFMAX(asf->duration, duration + pkt->duration * 10000);
806 packet_st = asf->nb_packets;
810 if ((!asf->is_streamed) && (flags & AV_PKT_FLAG_KEY)) {
812 if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) {
813 for(i=asf->nb_index_count;i<start_sec;i++) {
814 if (i>=asf->nb_index_memory_alloc) {
815 asf->nb_index_memory_alloc += ASF_INDEX_BLOCK;
816 asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc );
819 asf->index_ptr[i].packet_number = (uint32_t)packet_st;
820 asf->index_ptr[i].packet_count = (uint16_t)(asf->nb_packets-packet_st);
821 asf->maximum_packet = FFMAX(asf->maximum_packet, (uint16_t)(asf->nb_packets-packet_st));
823 asf->nb_index_count = start_sec;
824 asf->last_indexed_pts = duration;
852 ASFContext *asf = s->priv_data;
856 if (asf->pb.buf_ptr > asf->pb.buffer)
861 if ((!asf->is_streamed) && (asf->nb_index_count != 0)) {
862 asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count);
866 if (asf->is_streamed || !s->pb->seekable) {
872 asf_write_header1(s, file_size, data_size - asf->data_offset);
876 av_free(asf->index_ptr);
882 .name = "asf",
884 .mime_type = "video/x-ms-asf",
885 .extensions = "asf,wmv,wma",
905 .mime_type = "video/x-ms-asf",
906 .extensions = "asf,wmv,wma",