6e6a2de48f
- Use an internal packet format instead of passing around TS packets - Use an on-disk storage for pause/seek of live TV - Fix RTSP interface - Fix h264 recording - Set correct DTS/PTS on all packets
112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
/*
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* tvheadend, RTP interface
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* Copyright (C) 2007 Andreas Öman
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include "tvhead.h"
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#include "channels.h"
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#include "rtp.h"
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#include "dispatch.h"
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#include <ffmpeg/avformat.h>
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#include <ffmpeg/random.h>
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//static int64_t lts;
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//static int pkts;
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void
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rtp_output_ts(void *opaque, struct th_subscription *s,
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uint8_t *pkt, int blocks, int64_t pcr)
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{
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th_rtp_streamer_t *trs = opaque;
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struct msghdr msg;
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struct iovec vec[2];
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int r;
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AVRational mpeg_tc = {1, 90000};
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char hdr[12];
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#if 0
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int64_t ts;
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ts = getclock_hires();
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pkts++;
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if(ts - lts > 100000) {
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printf("%d packet per sec\n", pkts * 10);
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pkts = 0;
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lts = ts;
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}
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#endif
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pcr = av_rescale_q(pcr, AV_TIME_BASE_Q, mpeg_tc);
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hdr[0] = 0x80;
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hdr[1] = 33; /* M2TS */
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hdr[2] = trs->trs_seq >> 8;
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hdr[3] = trs->trs_seq;
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hdr[4] = pcr >> 24;
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hdr[5] = pcr >> 16;
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hdr[6] = pcr >> 8;
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hdr[7] = pcr;
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hdr[8] = 0;
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hdr[9] = 0;
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hdr[10] = 0;
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hdr[11] = 0;
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vec[0].iov_base = hdr;
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vec[0].iov_len = 12;
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vec[1].iov_base = pkt;
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vec[1].iov_len = blocks * 188;
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memset(&msg, 0, sizeof(msg));
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msg.msg_name = &trs->trs_dest;
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msg.msg_namelen = sizeof(struct sockaddr_in);
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msg.msg_iov = vec;
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msg.msg_iovlen = 2;
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r = sendmsg(trs->trs_fd, &msg, 0);
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if(r < 0)
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perror("sendmsg");
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trs->trs_seq++;
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}
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void
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rtp_streamer_init(th_rtp_streamer_t *trs, int fd, struct sockaddr_in *dst)
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{
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trs->trs_fd = fd;
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trs->trs_dest = *dst;
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trs->trs_seq = 0;
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}
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