2007-08-09 15:42:01 +00:00
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/*
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* TV Input - Linux analogue (v4lv2) interface
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* Copyright (C) 2007 Andreas <EFBFBD>man
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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 <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <fcntl.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 <inttypes.h>
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#include <ffmpeg/avio.h>
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#include <ffmpeg/avformat.h>
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extern AVInputFormat mpegps_demuxer;
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#define __user
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#include <linux/videodev2.h>
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#include <libhts/htscfg.h>
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#include "tvhead.h"
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#include "v4l.h"
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#include "channels.h"
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2007-08-19 15:28:06 +00:00
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#include "dispatch.h"
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#include "transports.h"
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2007-08-09 15:42:01 +00:00
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static struct th_v4l_adapter_list v4l_adapters;
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2007-08-19 15:28:06 +00:00
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static void v4l_fd_callback(int events, void *opaque, int fd);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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static int v4l_setfreq(th_v4l_adapter_t *tva, int frequency);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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static void v4l_pes_packet(th_v4l_adapter_t *tva, uint8_t *buf, int len,
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int type);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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static void v4l_ts_generate(th_v4l_adapter_t *tva, uint8_t *ptr, int len,
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int type, int64_t pts, int64_t dts);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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static void v4l_add_adapter(const char *path);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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void
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v4l_add_adapters(void)
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{
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v4l_add_adapter("/dev/video0");
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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int
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v4l_configure_transport(th_transport_t *t, const char *muxname)
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2007-08-09 15:42:01 +00:00
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{
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2007-08-19 15:28:06 +00:00
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config_entry_t *ce;
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char buf[100];
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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if((ce = find_mux_config("v4lmux", muxname)) == NULL)
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return -1;
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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t->tht_type = TRANSPORT_V4L;
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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t->tht_v4l_frequency =
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atoi(config_get_str_sub(&ce->ce_sub, "frequency", "0"));
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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transport_add_pid(t, 100, HTSTV_MPEG2VIDEO);
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transport_add_pid(t, 101, HTSTV_MPEG2AUDIO);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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snprintf(buf, sizeof(buf), "Analog: %s (%.2f MHz)", muxname,
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(float)t->tht_v4l_frequency / 1000000.0f);
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t->tht_name = strdup(buf);
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2007-08-09 15:42:01 +00:00
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return 0;
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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static void
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2007-08-19 15:28:06 +00:00
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v4l_add_adapter(const char *path)
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2007-08-09 15:42:01 +00:00
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{
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2007-08-19 15:28:06 +00:00
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int fd, r;
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th_v4l_adapter_t *tva;
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struct v4l2_capability caps;
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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fd = open(path, O_RDWR);
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if(fd == -1)
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2007-08-09 15:42:01 +00:00
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return;
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2007-08-19 15:28:06 +00:00
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r = ioctl(fd, VIDIOC_QUERYCAP, &caps);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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close(fd);
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if(r < 0)
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return;
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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tva = calloc(1, sizeof(th_v4l_adapter_t));
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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pthread_cond_init(&tva->tva_run_cond, NULL);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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tva->tva_path = strdup(path);
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LIST_INSERT_HEAD(&v4l_adapters, tva, tva_link);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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tva->tva_name = strdup((char *)caps.card);
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}
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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static int
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v4l_setfreq(th_v4l_adapter_t *tva, int frequency)
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{
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struct v4l2_frequency vf;
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struct v4l2_tuner vt;
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int result;
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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vf.tuner = 0;
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vf.type = V4L2_TUNER_ANALOG_TV;
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vf.frequency = (frequency * 16) / 1000000;
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result = ioctl(tva->tva_fd, VIDIOC_S_FREQUENCY, &vf);
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if(result < 0) {
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2007-08-19 16:48:05 +00:00
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syslog(LOG_ERR, "%s: Unable to tune to %dHz\n", tva->tva_path, frequency);
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2007-08-19 15:28:06 +00:00
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return 1;
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}
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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vt.index = 0;
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result = ioctl(tva->tva_fd, VIDIOC_G_TUNER, &vt);
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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if(result < 0) {
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2007-08-19 16:48:05 +00:00
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syslog(LOG_ERR, "%s: Unable read tuner status\n", tva->tva_path);
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2007-08-19 15:28:06 +00:00
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return 1;
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2007-08-09 15:42:01 +00:00
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}
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2007-08-19 15:28:06 +00:00
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2007-08-19 16:48:05 +00:00
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syslog(LOG_DEBUG, "%s: Tuned to %.3f MHz%s",
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tva->tva_path, (float)frequency/1000000.0,
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vt.signal ? " (Signal Detected)" : "");
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2007-08-09 15:42:01 +00:00
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2007-08-19 15:28:06 +00:00
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return 0;
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2007-08-09 15:42:01 +00:00
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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static void
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v4l_stop(th_v4l_adapter_t *tva)
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{
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2007-08-19 15:28:06 +00:00
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if(tva->tva_dispatch_handle != NULL) {
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close(dispatch_delfd(tva->tva_dispatch_handle));
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tva->tva_dispatch_handle = NULL;
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}
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2007-08-09 15:42:01 +00:00
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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void
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v4l_stop_feed(th_transport_t *t)
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{
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th_v4l_adapter_t *tva = t->tht_v4l_adapter;
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t->tht_v4l_adapter = NULL;
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LIST_REMOVE(t, tht_adapter_link);
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t->tht_status = TRANSPORT_IDLE;
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transport_flush_subscribers(t);
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if(LIST_FIRST(&tva->tva_transports) == NULL)
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v4l_stop(tva);
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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static void
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v4l_adapter_clean(th_v4l_adapter_t *tva)
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{
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th_transport_t *t;
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while((t = LIST_FIRST(&tva->tva_transports)) != NULL)
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v4l_stop_feed(t);
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v4l_stop(tva);
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}
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2007-08-19 15:28:06 +00:00
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/*
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*
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*/
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2007-08-09 15:42:01 +00:00
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int
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v4l_start_feed(th_transport_t *t, unsigned int weight)
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{
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th_v4l_adapter_t *tva, *cand = NULL;
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2007-08-19 15:28:06 +00:00
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int w, fd;
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AVCodec *c;
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2007-08-09 15:42:01 +00:00
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LIST_FOREACH(tva, &v4l_adapters, tva_link) {
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w = transport_compute_weight(&tva->tva_transports);
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if(w < weight)
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cand = tva;
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if(tva->tva_frequency == t->tht_v4l_frequency)
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break;
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}
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if(tva == NULL) {
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if(cand == NULL)
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return 1;
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v4l_adapter_clean(cand);
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tva = cand;
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}
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2007-08-19 15:28:06 +00:00
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if(tva->tva_streams[0].tva_ctx == NULL) {
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c = avcodec_find_decoder(CODEC_ID_MPEG2VIDEO);
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tva->tva_streams[0].tva_ctx = avcodec_alloc_context();
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avcodec_open(tva->tva_streams[0].tva_ctx, c);
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tva->tva_streams[0].tva_parser = av_parser_init(CODEC_ID_MPEG2VIDEO);
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}
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if(tva->tva_streams[1].tva_ctx == NULL) {
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c = avcodec_find_decoder(CODEC_ID_MP2);
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tva->tva_streams[1].tva_ctx = avcodec_alloc_context();
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avcodec_open(tva->tva_streams[1].tva_ctx, c);
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tva->tva_streams[1].tva_parser = av_parser_init(CODEC_ID_MP2);
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}
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if(tva->tva_dispatch_handle == NULL) {
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fd = open(tva->tva_path, O_RDWR);
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if(fd == -1)
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return 1;
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tva->tva_dispatch_handle =
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dispatch_addfd(fd, v4l_fd_callback, tva, DISPATCH_READ);
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tva->tva_fd = fd;
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}
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2007-08-09 15:42:01 +00:00
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tva->tva_frequency = t->tht_v4l_frequency;
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2007-08-19 15:28:06 +00:00
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if(v4l_setfreq(tva, tva->tva_frequency))
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return 1;
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2007-08-09 15:42:01 +00:00
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LIST_INSERT_HEAD(&tva->tva_transports, t, tht_adapter_link);
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t->tht_v4l_adapter = tva;
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t->tht_status = TRANSPORT_RUNNING;
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2007-08-19 15:28:06 +00:00
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return 0;
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}
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2007-08-09 15:42:01 +00:00
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|
2007-08-19 15:28:06 +00:00
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|
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|
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|
|
static void
|
|
|
|
|
v4l_fd_callback(int events, void *opaque, int fd)
|
|
|
|
|
{
|
|
|
|
|
th_v4l_adapter_t *tva = opaque;
|
|
|
|
|
uint8_t buf[4000];
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|
|
uint8_t *ptr, *pkt;
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|
int len, s = 0, l, r;
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|
if(!(events & DISPATCH_READ))
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|
return;
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|
len = read(fd, buf, 4000);
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|
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|
if(len < 1)
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|
return;
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ptr = buf;
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|
|
|
while(len > 0) {
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|
|
|
switch(tva->tva_startcode) {
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|
|
|
|
default:
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|
|
|
|
tva->tva_startcode = tva->tva_startcode << 8 | *ptr;
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|
|
tva->tva_lenlock = 0;
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ptr++; len--;
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|
continue;
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case 0x000001e0:
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|
s = 0; /* video */
|
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|
break;
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|
case 0x000001c0:
|
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|
|
s = 1; /* audio */
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|
break;
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}
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|
|
if(tva->tva_lenlock == 2) {
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|
l = tva->tva_streams[s].tva_pes_packet_len;
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|
|
|
pkt = realloc(tva->tva_streams[s].tva_pes_packet, l);
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|
tva->tva_streams[s].tva_pes_packet = pkt;
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|
r = l - tva->tva_streams[s].tva_pes_packet_pos;
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|
|
if(r > len)
|
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|
|
r = len;
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|
|
memcpy(pkt + tva->tva_streams[s].tva_pes_packet_pos, ptr, r);
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|
ptr += r;
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|
len -= r;
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|
tva->tva_streams[s].tva_pes_packet_pos += r;
|
|
|
|
|
if(tva->tva_streams[s].tva_pes_packet_pos == l) {
|
|
|
|
|
v4l_pes_packet(tva, pkt, l, s);
|
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|
|
|
tva->tva_startcode = 0;
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|
|
|
}
|
|
|
|
|
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|
|
} else {
|
|
|
|
|
tva->tva_streams[s].tva_pes_packet_len =
|
|
|
|
|
tva->tva_streams[s].tva_pes_packet_len << 8 | *ptr;
|
|
|
|
|
tva->tva_lenlock++;
|
|
|
|
|
if(tva->tva_lenlock == 2) {
|
|
|
|
|
tva->tva_streams[s].tva_pes_packet_pos = 0;
|
|
|
|
|
}
|
|
|
|
|
ptr++; len--;
|
|
|
|
|
}
|
|
|
|
|
}
|
2007-08-09 15:42:01 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
#define getu32(b, l) ({ \
|
|
|
|
|
uint32_t x = (b[0] << 24 | b[1] << 16 | b[2] << 8 | b[3]); \
|
|
|
|
|
b+=4; \
|
|
|
|
|
l-=4; \
|
|
|
|
|
x; \
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
#define getu16(b, l) ({ \
|
|
|
|
|
uint16_t x = (b[0] << 8 | b[1]); \
|
|
|
|
|
b+=2; \
|
|
|
|
|
l-=2; \
|
|
|
|
|
x; \
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
#define getu8(b, l) ({ \
|
|
|
|
|
uint8_t x = b[0]; \
|
|
|
|
|
b+=1; \
|
|
|
|
|
l-=1; \
|
|
|
|
|
x; \
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
#define getpts(b, l) ({ \
|
|
|
|
|
int64_t _pts; \
|
|
|
|
|
_pts = (int64_t)((getu8(b, l) >> 1) & 0x07) << 30; \
|
|
|
|
|
_pts |= (int64_t)(getu16(b, l) >> 1) << 15; \
|
|
|
|
|
_pts |= (int64_t)(getu16(b, l) >> 1); \
|
|
|
|
|
_pts; \
|
|
|
|
|
})
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
*
|
|
|
|
|
*/
|
2007-08-19 15:28:06 +00:00
|
|
|
|
static void
|
|
|
|
|
v4l_pes_packet(th_v4l_adapter_t *tva, uint8_t *buf, int len, int type)
|
|
|
|
|
{
|
|
|
|
|
uint8_t flags, hlen, x;
|
|
|
|
|
int64_t dts = AV_NOPTS_VALUE, pts = AV_NOPTS_VALUE;
|
|
|
|
|
uint8_t *outbuf;
|
|
|
|
|
int outlen, rlen;
|
|
|
|
|
AVCodecParserContext *p;
|
|
|
|
|
|
|
|
|
|
x = getu8(buf, len);
|
|
|
|
|
flags = getu8(buf, len);
|
|
|
|
|
hlen = getu8(buf, len);
|
|
|
|
|
|
|
|
|
|
if(len < hlen)
|
|
|
|
|
return;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
if((x & 0xc0) != 0x80)
|
|
|
|
|
/* no MPEG 2 PES */
|
|
|
|
|
return;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
if((flags & 0xc0) == 0xc0) {
|
|
|
|
|
if(hlen < 10)
|
|
|
|
|
return;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
pts = getpts(buf, len);
|
|
|
|
|
dts = getpts(buf, len);
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
hlen -= 10;
|
|
|
|
|
} else if((flags & 0xc0) == 0x80) {
|
|
|
|
|
if(hlen < 5)
|
|
|
|
|
return;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
dts = pts = getpts(buf, len);
|
|
|
|
|
hlen -= 5;
|
|
|
|
|
}
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
buf += hlen;
|
|
|
|
|
len -= hlen;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
p = tva->tva_streams[type].tva_parser;
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
while(len > 0) {
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
rlen = av_parser_parse(p, tva->tva_streams[type].tva_ctx,
|
|
|
|
|
&outbuf, &outlen, buf, len,
|
|
|
|
|
pts, dts);
|
|
|
|
|
|
|
|
|
|
if(outlen)
|
|
|
|
|
v4l_ts_generate(tva, outbuf, outlen, type, pts, dts);
|
|
|
|
|
|
|
|
|
|
buf += rlen;
|
|
|
|
|
len -= rlen;
|
|
|
|
|
}
|
2007-08-09 15:42:01 +00:00
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2007-08-19 15:28:06 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
static void
|
|
|
|
|
v4l_ts_generate(th_v4l_adapter_t *tva, uint8_t *ptr, int len, int type,
|
|
|
|
|
int64_t pts, int64_t dts)
|
|
|
|
|
{
|
|
|
|
|
th_pid_t p;
|
|
|
|
|
uint32_t sc;
|
|
|
|
|
uint8_t tsb0[188];
|
|
|
|
|
uint8_t *tsb, *src;
|
2007-09-14 21:45:21 +00:00
|
|
|
|
int64_t ts, pcr = AV_NOPTS_VALUE;
|
2007-08-19 15:28:06 +00:00
|
|
|
|
int hlen, tlen, slen, plen, cc, pad;
|
|
|
|
|
uint16_t u16;
|
|
|
|
|
th_transport_t *t;
|
|
|
|
|
|
|
|
|
|
memset(&p, 0, sizeof(p));
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if(type) {
|
|
|
|
|
sc = 0x1c0;
|
|
|
|
|
p.tp_type = HTSTV_MPEG2AUDIO;
|
|
|
|
|
p.tp_pid = 101;
|
|
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
sc = 0x1e0;
|
|
|
|
|
p.tp_type = HTSTV_MPEG2VIDEO;
|
|
|
|
|
p.tp_pid = 100;
|
2007-09-14 21:45:21 +00:00
|
|
|
|
if(pts != AV_NOPTS_VALUE)
|
|
|
|
|
pcr = dts;
|
2007-08-19 15:28:06 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tsb = tsb0;
|
|
|
|
|
|
|
|
|
|
slen = len;
|
|
|
|
|
len += 13;
|
|
|
|
|
|
2007-09-14 21:45:21 +00:00
|
|
|
|
*tsb++ = 0x47;
|
2007-08-19 15:28:06 +00:00
|
|
|
|
*tsb++ = p.tp_pid >> 8 | 0x40; /* payload unit start indicator */
|
|
|
|
|
*tsb++ = p.tp_pid;
|
|
|
|
|
|
|
|
|
|
cc = ++tva->tva_streams[type].tva_cc;
|
|
|
|
|
|
|
|
|
|
*tsb++ = (cc & 0xf) | 0x10;
|
|
|
|
|
|
|
|
|
|
*tsb++ = 0;
|
|
|
|
|
*tsb++ = 0;
|
|
|
|
|
*tsb++ = sc >> 8;
|
|
|
|
|
*tsb++ = sc;
|
|
|
|
|
|
|
|
|
|
*tsb++ = len >> 8;
|
|
|
|
|
*tsb++ = len;
|
|
|
|
|
|
|
|
|
|
*tsb++ = 0x80; /* MPEG2 */
|
|
|
|
|
|
|
|
|
|
if(pts == AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE) {
|
|
|
|
|
*tsb++ = 0x00; /* no ts */
|
|
|
|
|
*tsb++ = 0; /* hdrlen */
|
|
|
|
|
hlen = 0;
|
|
|
|
|
} else {
|
|
|
|
|
|
|
|
|
|
*tsb++ = 0xc0; /* pts & dts */
|
|
|
|
|
*tsb++ = 10; /* pts & dts */
|
|
|
|
|
hlen = 10;
|
|
|
|
|
|
|
|
|
|
ts = pts;
|
|
|
|
|
*tsb++ = (((ts >> 30) & 7) << 1) | 1;
|
|
|
|
|
u16 = (((ts >> 15) & 0x7fff) << 1) | 1;
|
|
|
|
|
*tsb++ = u16 >> 8;
|
|
|
|
|
*tsb++ = u16;
|
|
|
|
|
u16 = ((ts & 0x7fff) << 1) | 1;
|
|
|
|
|
*tsb++ = u16 >> 8;
|
|
|
|
|
*tsb++ = u16;
|
|
|
|
|
|
|
|
|
|
ts = dts;
|
|
|
|
|
*tsb++ = (((ts >> 30) & 7) << 1) | 1;
|
|
|
|
|
u16 = (((ts >> 15) & 0x7fff) << 1) | 1;
|
|
|
|
|
*tsb++ = u16 >> 8;
|
|
|
|
|
*tsb++ = u16;
|
|
|
|
|
u16 = ((ts & 0x7fff) << 1) | 1;
|
|
|
|
|
*tsb++ = u16 >> 8;
|
|
|
|
|
*tsb++ = u16;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tlen = 188 - 4 - 4 - 2 - 3 - hlen;
|
|
|
|
|
|
|
|
|
|
src = ptr;
|
|
|
|
|
|
|
|
|
|
plen = FFMIN(tlen, slen);
|
|
|
|
|
|
|
|
|
|
while(1) {
|
|
|
|
|
assert(plen != 0);
|
|
|
|
|
assert(slen > 0);
|
|
|
|
|
|
|
|
|
|
memcpy(tsb, src, plen);
|
|
|
|
|
|
|
|
|
|
|
2007-09-14 21:45:21 +00:00
|
|
|
|
LIST_FOREACH(t, &tva->tva_transports, tht_adapter_link) {
|
|
|
|
|
transport_recv_tsb(t, p.tp_pid, tsb0, 0, pcr);
|
|
|
|
|
pcr = AV_NOPTS_VALUE;
|
|
|
|
|
}
|
2007-08-19 15:28:06 +00:00
|
|
|
|
|
|
|
|
|
slen -= plen;
|
|
|
|
|
if(slen == 0)
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
src += plen;
|
|
|
|
|
|
|
|
|
|
tsb = tsb0;
|
|
|
|
|
|
2007-09-14 21:45:21 +00:00
|
|
|
|
*tsb++ = 0x47;
|
2007-08-19 15:28:06 +00:00
|
|
|
|
*tsb++ = p.tp_pid >> 8;
|
|
|
|
|
*tsb++ = p.tp_pid;
|
|
|
|
|
|
|
|
|
|
tlen = 188 - 4;
|
|
|
|
|
|
|
|
|
|
cc = ++tva->tva_streams[type].tva_cc;
|
|
|
|
|
|
|
|
|
|
plen = FFMIN(tlen, slen);
|
|
|
|
|
if(plen == slen) {
|
|
|
|
|
tlen -= 2;
|
|
|
|
|
plen = FFMIN(tlen, slen);
|
|
|
|
|
pad = tlen - plen;
|
|
|
|
|
|
|
|
|
|
*tsb++ = (cc & 0xf) | 0x30;
|
|
|
|
|
*tsb++ = pad + 1;
|
|
|
|
|
*tsb++ = 0;
|
|
|
|
|
tsb += pad;
|
|
|
|
|
|
|
|
|
|
} else {
|
|
|
|
|
*tsb++ = (cc & 0xf) | 0x10;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|