mirror of https://github.com/mpv-player/mpv
396 lines
9.2 KiB
C
396 lines
9.2 KiB
C
// Don't change for DVB card, it must be 2048
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#define PES_MAX_SIZE 2048
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/*
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* Based on:
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*
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* test_av.c - Test program for new API
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*
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* Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
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* & Marcus Metzler <marcus@convergence.de>
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* for convergence integrated media GmbH
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*
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* libav - MPEG-PS multiplexer, part of ffmpeg
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* Copyright Gerard Lantau (see http://ffmpeg.sf.net)
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*
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "mp_msg.h"
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#ifdef HAVE_DVB_HEAD
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#define HAVE_DVB 1
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#endif
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#ifdef HAVE_DVB
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#ifndef HAVE_DVB_HEAD
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#include <sys/poll.h>
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#include <sys/ioctl.h>
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#include <stdio.h>
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#include <time.h>
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#include <ost/dmx.h>
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#include <ost/frontend.h>
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#include <ost/sec.h>
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#include <ost/video.h>
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#include <ost/audio.h>
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#else
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#define true 1
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#define false 0
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#include <sys/poll.h>
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#include <sys/ioctl.h>
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#include <stdio.h>
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#include <time.h>
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#include <linux/dvb/dmx.h>
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#include <linux/dvb/frontend.h>
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#include <linux/dvb/video.h>
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#include <linux/dvb/audio.h>
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#endif
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#endif
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#include "config.h"
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#include "video_out.h"
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#include "video_out_internal.h"
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int vo_mpegpes_fd=-1;
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int vo_mpegpes_fd2=-1;
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static vo_info_t info =
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{
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#ifdef HAVE_DVB
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"Mpeg-PES to DVB card",
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#else
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"Mpeg-PES file",
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#endif
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"mpegpes",
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"A'rpi",
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""
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};
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LIBVO_EXTERN (mpegpes)
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static uint32_t
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config(uint32_t s_width, uint32_t s_height, uint32_t width, uint32_t height, uint32_t fullscreen, char *title, uint32_t format)
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{
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#ifdef HAVE_DVB
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switch(s_height){
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case 288:
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case 576:
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case 240:
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case 480:
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break;
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default:
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mp_msg(MSGT_VO,MSGL_ERR,"DVB: height=%d not supported (try 240/480 (ntsc) or 288/576 (pal)\n",s_height);
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return -1;
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}
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#endif
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return 0;
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}
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static uint32_t preinit(const char *arg){
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#ifdef HAVE_DVB
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int card = 0;
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char vo_file[30], ao_file[30], *tmp;
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if(arg != NULL){
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if((tmp = strstr(arg, "card=")) != NULL) {
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card = atoi(&tmp[5]);
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if((card < 1) || (card > 4)) {
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mp_msg(MSGT_VO, MSGL_ERR, "DVB card number must be between 1 and 4\n");
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return -1;
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}
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card--;
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arg = NULL;
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}
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}
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if(!arg){
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//|O_NONBLOCK
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#ifndef HAVE_DVB_HEAD
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mp_msg(MSGT_VO,MSGL_INFO, "Opening /dev/ost/video+audio\n");
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sprintf(vo_file, "/dev/ost/video");
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sprintf(ao_file, "/dev/ost/audio");
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#else
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mp_msg(MSGT_VO,MSGL_INFO, "Opening /dev/dvb/adapter%d/video0+audio0\n", card);
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sprintf(vo_file, "/dev/dvb/adapter%d/video0", card);
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sprintf(ao_file, "/dev/dvb/adapter%d/audio0", card);
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#endif
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if((vo_mpegpes_fd = open(vo_file,O_RDWR)) < 0){
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perror("DVB VIDEO DEVICE: ");
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return -1;
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}
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if((vo_mpegpes_fd2 = open(ao_file,O_RDWR|O_NONBLOCK)) < 0){
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perror("DVB AUDIO DEVICE: ");
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return -1;
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}
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if ( (ioctl(vo_mpegpes_fd,VIDEO_SET_BLANK, false) < 0)){
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perror("DVB VIDEO SET BLANK: ");
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return -1;
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}
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if ( (ioctl(vo_mpegpes_fd,VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY) < 0)){
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perror("DVB VIDEO SELECT SOURCE: ");
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return -1;
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}
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#if 1
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if ( (ioctl(vo_mpegpes_fd2,AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY) < 0)){
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perror("DVB AUDIO SELECT SOURCE: ");
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return -1;
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}
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if ( (ioctl(vo_mpegpes_fd2,AUDIO_PLAY) < 0)){
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perror("DVB AUDIO PLAY: ");
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return -1;
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}
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#else
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if ( (ioctl(vo_mpegpes_fd2,AUDIO_STOP,0) < 0)){
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perror("DVB AUDIO STOP: ");
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return -1;
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}
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#endif
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if ( (ioctl(vo_mpegpes_fd,VIDEO_PLAY) < 0)){
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perror("DVB VIDEO PLAY: ");
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return -1;
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}
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if ( (ioctl(vo_mpegpes_fd2,AUDIO_SET_AV_SYNC, true) < 0)){
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perror("DVB AUDIO SET AV SYNC: ");
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return -1;
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}
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// if ( (ioctl(vo_mpegpes_fd2,AUDIO_SET_MUTE, false) < 0)){
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if ( (ioctl(vo_mpegpes_fd2,AUDIO_SET_MUTE, true) < 0)){
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perror("DVB AUDIO SET MUTE: ");
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return -1;
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}
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return 0;
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}
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#endif
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arg = (arg ? arg : "grab.mpg");
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mp_msg(MSGT_VO,MSGL_INFO, "Saving PES stream to %s\n", arg);
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vo_mpegpes_fd=open(arg,O_WRONLY|O_CREAT,0666);
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if(vo_mpegpes_fd<0){
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perror("vo_mpegpes");
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return -1;
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}
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vo_mpegpes_fd2=vo_mpegpes_fd;
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return 0;
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}
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static void draw_osd(void)
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{
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}
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static void my_write(unsigned char* data,int len){
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#ifdef HAVE_DVB
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#define NFD 2
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struct pollfd pfd[NFD];
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// printf("write %d bytes \n",len);
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pfd[0].fd = vo_mpegpes_fd;
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pfd[0].events = POLLOUT;
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pfd[1].fd = vo_mpegpes_fd2;
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pfd[1].events = POLLOUT;
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while(len>0){
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if (poll(pfd,NFD,1)){
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if (pfd[0].revents & POLLOUT){
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int ret=write(vo_mpegpes_fd,data,len);
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// printf("ret=%d \n",ret);
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if(ret<=0){
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perror("write");
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usleep(0);
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} else {
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len-=ret; data+=ret;
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}
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} else usleep(1000);
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}
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}
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#else
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write(vo_mpegpes_fd,data,len); // write to file
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#endif
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}
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static unsigned char pes_header[PES_MAX_SIZE];
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void send_pes_packet(unsigned char* data,int len,int id,int timestamp){
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int ptslen=timestamp?5:1;
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// startcode:
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pes_header[0]=pes_header[1]=0;
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pes_header[2]=id>>8; pes_header[3]=id&255;
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while(len>0){
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int payload_size=len; // data + PTS
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if(6+ptslen+payload_size>PES_MAX_SIZE) payload_size=PES_MAX_SIZE-(6+ptslen);
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// construct PES header: (code from ffmpeg's libav)
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// packetsize:
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pes_header[4]=(ptslen+payload_size)>>8;
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pes_header[5]=(ptslen+payload_size)&255;
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if(ptslen==5){
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int x;
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// presentation time stamp:
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x=(0x02 << 4) | (((timestamp >> 30) & 0x07) << 1) | 1;
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pes_header[6]=x;
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x=((((timestamp >> 15) & 0x7fff) << 1) | 1);
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pes_header[7]=x>>8; pes_header[8]=x&255;
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x=((((timestamp) & 0x7fff) << 1) | 1);
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pes_header[9]=x>>8; pes_header[10]=x&255;
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} else {
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// stuffing and header bits:
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pes_header[6]=0x0f;
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}
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memcpy(&pes_header[6+ptslen],data,payload_size);
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my_write(pes_header,6+ptslen+payload_size);
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len-=payload_size; data+=payload_size;
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ptslen=1; // store PTS only once, at first packet!
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}
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// printf("PES: draw frame! pts=%d size=%d \n",timestamp,len);
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}
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void send_lpcm_packet(unsigned char* data,int len,int id,unsigned int timestamp,int freq_id){
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int ptslen=timestamp?5:0;
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// startcode:
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pes_header[0]=pes_header[1]=0;
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pes_header[2]=1; pes_header[3]=0xBD;
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while(len>=4){
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int payload_size;
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payload_size=PES_MAX_SIZE-6-20; // max possible data len
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if(payload_size>len) payload_size=len;
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payload_size&=(~3); // align!
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//if(6+payload_size>PES_MAX_SIZE) payload_size=PES_MAX_SIZE-6;
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// packetsize:
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pes_header[4]=(payload_size+3+ptslen+7)>>8;
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pes_header[5]=(payload_size+3+ptslen+7)&255;
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// stuffing:
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// TTCCxxxx CC=css TT=type: 1=STD 0=mpeg1 2=vob
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pes_header[6]=0x81;
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// FFxxxxxx FF=pts flags=2 vs 0
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pes_header[7]=ptslen ? 0x80 : 0;
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// hdrlen:
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pes_header[8]=ptslen;
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if(ptslen){
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int x;
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// presentation time stamp:
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x=(0x02 << 4) | (((timestamp >> 30) & 0x07) << 1) | 1;
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pes_header[9]=x;
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x=((((timestamp >> 15) & 0x7fff) << 1) | 1);
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pes_header[10]=x>>8; pes_header[11]=x&255;
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x=((((timestamp) & 0x7fff) << 1) | 1);
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pes_header[12]=x>>8; pes_header[13]=x&255;
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}
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// ============ LPCM header: (7 bytes) =================
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// Info by mocm@convergence.de
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// ID:
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pes_header[ptslen+9]=id;
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// number of frames:
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pes_header[ptslen+10]=0x07;
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// first acces unit pointer, i.e. start of audio frame:
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pes_header[ptslen+11]=0x00;
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pes_header[ptslen+12]=0x04;
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// audio emphasis on-off 1 bit
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// audio mute on-off 1 bit
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// reserved 1 bit
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// audio frame number 5 bit
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pes_header[ptslen+13]=0x0C;
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// quantization word length 2 bit
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// audio sampling frequency (48khz = 0, 96khz = 1) 2 bit
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// reserved 1 bit
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// number of audio channels - 1 (e.g. stereo = 1) 3 bit
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pes_header[ptslen+14]=1|(freq_id<<4);
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// dynamic range control (0x80 if off)
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pes_header[ptslen+15]=0x80;
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memcpy(&pes_header[6+3+ptslen+7],data,payload_size);
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my_write(pes_header,6+3+ptslen+7+payload_size);
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len-=payload_size; data+=payload_size;
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ptslen=0; // store PTS only once, at first packet!
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}
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// printf("PES: draw frame! pts=%d size=%d \n",timestamp,len);
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}
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static uint32_t draw_frame(uint8_t * src[])
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{
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vo_mpegpes_t *p=(vo_mpegpes_t *)src[0];
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send_pes_packet(p->data,p->size,p->id,(p->timestamp>0)?p->timestamp:vo_pts); // video data
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return 0;
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}
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static void flip_page (void)
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{
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}
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static uint32_t draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x0,int y0)
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{
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return 0;
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}
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static uint32_t
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query_format(uint32_t format)
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{
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if(format==IMGFMT_MPEGPES) return 3|VFCAP_TIMER;
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return 0;
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}
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static void
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uninit(void)
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{
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if(vo_mpegpes_fd2>=0 && vo_mpegpes_fd2!=vo_mpegpes_fd) close(vo_mpegpes_fd2);
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vo_mpegpes_fd2=-1;
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if(vo_mpegpes_fd>=0){ close(vo_mpegpes_fd);vo_mpegpes_fd=-1;}
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}
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static void check_events(void)
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{
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}
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static uint32_t control(uint32_t request, void *data, ...)
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{
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switch (request) {
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case VOCTRL_QUERY_FORMAT:
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return query_format(*((uint32_t*)data));
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}
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return VO_NOTIMPL;
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}
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