summaryrefslogtreecommitdiffstats
path: root/libvo/vo_mpegpes.c
blob: a113fa32f2d0a0f68aefde083ec63a785e1003f1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
/* 
 * Based on:
 *
 * test_av.c - Test program for new API
 *
 * Copyright (C) 2000 Ralph  Metzler <ralph@convergence.de>
 *                  & Marcus Metzler <marcus@convergence.de>
 *                    for convergence integrated media GmbH
 *
 * libav - MPEG-PS multiplexer, part of ffmpeg
 * Copyright Gerard Lantau  (see http://ffmpeg.sf.net)
 *
 */

#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include "mp_msg.h"

#ifdef HAVE_DVB
#ifndef HAVE_DVB_HEAD
#include <sys/poll.h>

#include <sys/ioctl.h>
#include <stdio.h>
#include <time.h>

#include <ost/dmx.h>
#include <ost/frontend.h>
#include <ost/sec.h>
#include <ost/video.h>
#include <ost/audio.h>

#else
#define true 1
#define false 0
#include <sys/poll.h>

#include <sys/ioctl.h>
#include <stdio.h>
#include <time.h>

#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#endif
#endif

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "libmpdemux/mpeg_packetizer.h"

int vo_mpegpes_fd=-1;
extern int vo_mpegpes_fd2;

static const vo_info_t info = 
{
#ifdef HAVE_DVB
	"MPEG-PES to DVB card",
#else
	"MPEG-PES file",
#endif
	"mpegpes",
	"A'rpi",
	""
};

const LIBVO_EXTERN (mpegpes)

static int
config(uint32_t s_width, uint32_t s_height, uint32_t width, uint32_t height, uint32_t flags, char *title, uint32_t format)
{
#ifdef HAVE_DVB
    switch(s_height){
    case 288:
    case 576:
    case 240:
    case 480:
	break;
    default:
	mp_msg(MSGT_VO,MSGL_ERR,"DVB: height=%d not supported (try 240/480 (ntsc) or 288/576 (pal)\n",s_height);
	return -1;
    }
#endif
    return 0;
}

static int preinit(const char *arg){
#ifdef HAVE_DVB
    int card = -1;
    char vo_file[30], ao_file[30], *tmp;
    
    if(arg != NULL){
	if((tmp = strstr(arg, "card=")) != NULL) {
	    card = atoi(&tmp[5]);
	    if((card < 1) || (card > 4)) {
		mp_msg(MSGT_VO, MSGL_ERR, "DVB card number must be between 1 and 4\n");
		return -1;
	    }
	    card--;
	    arg = NULL;
	}
    }
    
    if(!arg){
    //|O_NONBLOCK
        //search the first usable card
        if(card==-1) {
          int n;
          for(n=0; n<4; n++) {
            sprintf(vo_file, "/dev/dvb/adapter%d/video0", n);
            if(access(vo_file, F_OK | W_OK)==0) {
              card = n;
              break;
            }
          }
        }
        if(card==-1) {
          mp_msg(MSGT_VO,MSGL_INFO, "Couldn't find a usable dvb video device, exiting\n");
          return -1;
        }
#ifndef HAVE_DVB_HEAD
	mp_msg(MSGT_VO,MSGL_INFO, "Opening /dev/ost/video+audio\n");
	sprintf(vo_file, "/dev/ost/video");
	sprintf(ao_file, "/dev/ost/audio");
#else
	mp_msg(MSGT_VO,MSGL_INFO, "Opening /dev/dvb/adapter%d/video0+audio0\n", card);
	sprintf(vo_file, "/dev/dvb/adapter%d/video0", card);
	sprintf(ao_file, "/dev/dvb/adapter%d/audio0", card);
#endif
	if((vo_mpegpes_fd = open(vo_file,O_RDWR)) < 0){
        	perror("DVB VIDEO DEVICE: ");
        	return -1;
	}
	if ( (ioctl(vo_mpegpes_fd,VIDEO_SET_BLANK, false) < 0)){
		perror("DVB VIDEO SET BLANK: ");
		return -1;
	}
	if ( (ioctl(vo_mpegpes_fd,VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY) < 0)){
		perror("DVB VIDEO SELECT SOURCE: ");
		return -1;
	}
	if ( (ioctl(vo_mpegpes_fd,VIDEO_PLAY) < 0)){
		perror("DVB VIDEO PLAY: ");
		return -1;
	}
	return 0;
    }
#endif
    arg = (arg ? arg : "grab.mpg");
    mp_msg(MSGT_VO,MSGL_INFO, "Saving PES stream to %s\n", arg);
    vo_mpegpes_fd=open(arg,O_WRONLY|O_CREAT,0666);
    if(vo_mpegpes_fd<0){	
	perror("vo_mpegpes");
	return -1;
    }
    return 0;
}


static void draw_osd(void)
{
}


static int my_write(unsigned char* data,int len){
    int orig_len = len;
#ifdef HAVE_DVB
#define NFD   2
    struct pollfd pfd[NFD];

//    printf("write %d bytes  \n",len);

	pfd[0].fd = vo_mpegpes_fd;
	pfd[0].events = POLLOUT;
	
	pfd[1].fd = vo_mpegpes_fd2;
	pfd[1].events = POLLOUT;

    while(len>0){
	if (poll(pfd,NFD,1)){
	    if (pfd[0].revents & POLLOUT){
		int ret=write(vo_mpegpes_fd,data,len);
//		printf("ret=%d  \n",ret); 
		if(ret<=0){
		    perror("write");
		    usleep(0);
		} else {
		    len-=ret; data+=ret;
		}
	    } else usleep(1000);
	}
    }

#else
    write(vo_mpegpes_fd,data,len); // write to file
#endif
    return orig_len;
}

static void send_pes_packet(unsigned char* data,int len,int id,int timestamp){
    send_mpeg_pes_packet (data, len, id, timestamp, 1, my_write);
}

static int draw_frame(uint8_t * src[])
{
    vo_mpegpes_t *p=(vo_mpegpes_t *)src[0];
    send_pes_packet(p->data,p->size,p->id,(p->timestamp>0)?p->timestamp:vo_pts);  // video data
    return 0;
}

static void flip_page (void)
{
}

static int draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x0,int y0)
{
    return 0;
}


static int
query_format(uint32_t format)
{
    if(format==IMGFMT_MPEGPES) return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_TIMER;
    return 0;
}

static void
uninit(void)
{
    if(vo_mpegpes_fd2>=0 && vo_mpegpes_fd2!=vo_mpegpes_fd) close(vo_mpegpes_fd2);
    vo_mpegpes_fd2=-1;
    if(vo_mpegpes_fd>=0){ close(vo_mpegpes_fd);vo_mpegpes_fd=-1;}
}


static void check_events(void)
{
}

static int control(uint32_t request, void *data)
{
  switch (request) {
  case VOCTRL_QUERY_FORMAT:
    return query_format(*((uint32_t*)data));
  }
  return VO_NOTIMPL;
}