summaryrefslogtreecommitdiffstats
path: root/libvo/vo_zr.c
blob: af9cc9b00a4e0e3dc5f3529abf4753cdfc67e9ae (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
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
/*
 * playback on Zoran cards
 * copyright (C) 2001, 2003 Rik Snel
 *
 * This file is part of MPlayer.
 *
 * MPlayer is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * MPlayer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/* $Id$ */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/videodev.h>
#include "config.h"
#include "videodev_mjpeg.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "mp_msg.h"
#include "m_option.h"
#include "fastmemcpy.h"
#include "jpeg_enc.h"
#include "vo_zr.h"

static const vo_info_t info =
{
	"Zoran ZR360[56]7/ZR36060 Driver (DC10(+)/buz/lml33/MatroxRR)",
	"zr",
	"Rik Snel <rsnel@cube.dyndns.org>",
	""
};

const LIBVO_EXTERN (zr)

#define	ZR_MAX_DEVICES 4
/* General variables */

typedef struct {
	int width;
	int height;
	int xoff;
	int yoff;
	int set;
} geo_t;

static int zr_count = 1;
static int zr_parsing = 0;
static int framenum;

typedef struct {
	/* commandline args given for this device (and defaults) */
	int vdec, hdec; 	/* requested decimation 1,2,4 */
	int fd; 		/* force decimation */
	int xdoff, ydoff;	/* offset from upperleft of screen
				 * default is 'centered' */
	int quality; 		/* jpeg quality 1=best, 20=bad */
	geo_t g;		/* view window (zrcrop) */
	char *device;		/* /dev/video1 */
	int bw;			/* if bw == 1, display in black&white */
	int norm;	 	/* PAL/NTSC */

	/* buffers + pointers + info */

	unsigned char *image;
	int image_width, image_height, size;
	int off_y, off_c, stride;    /* for use by 'draw slice/frame' */

	unsigned char *buf;   /* the jpeg images will be placed here */
	jpeg_enc_t *j;
	unsigned char *y_data, *u_data, *v_data; /* used by the jpeg encoder */
	int y_stride, u_stride, v_stride; /* these point somewhere in image */

	/* information for (and about) the zoran card */

	int vdes;			/* file descriptor of card */
	int frame, synco, queue; 	/* buffer management */
	struct mjpeg_sync zs;		/* state information */
	struct mjpeg_params p;
	struct mjpeg_requestbuffers zrq;
	struct video_capability vc;	/* max resolution and so on */
	int fields, stretchy; /* must the *image be interlaced
					   or stretched to fit on the screen? */
} zr_info_t;

static zr_info_t zr_info[ZR_MAX_DEVICES] = {
	{1, 1, 1, -1, -1, 2, {0, 0, 0, 0, 0}, NULL, 0, VIDEO_MODE_AUTO, NULL, 0, 0, 0, 0, 0,
	0, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
	{1, 1, 1, -1, -1, 2, {0, 0, 0, 0, 0}, NULL, 0, VIDEO_MODE_AUTO, NULL, 0, 0, 0, 0, 0,
	0, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
	{1, 1, 1, -1, -1, 2, {0, 0, 0, 0, 0}, NULL, 0, VIDEO_MODE_AUTO, NULL, 0, 0, 0, 0, 0,
	0, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
	{1, 1, 1, -1, -1, 2, {0, 0, 0, 0, 0}, NULL, 0, VIDEO_MODE_AUTO, NULL, 0, 0, 0, 0, 0,
	0, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};




#define MJPEG_NBUFFERS	2
#define MJPEG_SIZE	1024*256


static int zoran_getcap(zr_info_t *zr)
{
	char* dev = NULL;

	if (zr->device)
		dev = zr->device;
	else {
		struct stat vstat;
		const char *devs[] = {
		    "/dev/video",
		    "/dev/video0",
		    "/dev/v4l/video0",
		    "/dev/v4l0",
		    "/dev/v4l",
		    NULL
		};
		int i = 0;

		do
		{
		    if ((stat(devs[i], &vstat) == 0) && S_ISCHR(vstat.st_mode))
		    {
			dev = devs[i];
			mp_msg(MSGT_VO, MSGL_V, "zr: found video device %s\n", dev);
			break;
		    }
		} while (devs[++i] != NULL);

		if (!dev)
		{
		    mp_msg(MSGT_VO, MSGL_ERR, "zr: unable to find video device\n");
		    return 1;
		}
	}

	zr->vdes = open(dev, O_RDWR);

	if (zr->vdes < 0) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error opening %s: %s\n",
		       dev, strerror(errno));
		return 1;
	}

	/* before we can ask for the maximum resolution, we must set
	 * the correct tv norm */

	if (ioctl(zr->vdes, MJPIOC_G_PARAMS, &zr->p) < 0) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: device at %s is probably not a DC10(+)/buz/lml33\n", dev);
		return 1;
	}

	if (zr->p.norm != zr->norm && zr->norm != VIDEO_MODE_AUTO) {
		/* attempt to set requested norm */
		zr->p.norm = zr->norm;
		if (ioctl(zr->vdes, MJPIOC_S_PARAMS, &zr->p) < 0) {
			mp_msg(MSGT_VO, MSGL_ERR,
				"zr: unable to change video norm, use another program to change it (XawTV)\n");
			return 1;
		}
		ioctl(zr->vdes, MJPIOC_G_PARAMS, &zr->p);
		if (zr->norm != zr->p.norm) {
			mp_msg(MSGT_VO, MSGL_ERR,
				"zr: unable to change video norm, use another program to change it (XawTV)\n");
			return 1;
		}
	}

	if (ioctl(zr->vdes, VIDIOCGCAP, &zr->vc) < 0) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error getting video capabilities from %s\n", dev);
		return 1;
	}
	mp_msg(MSGT_VO, MSGL_V, "zr: MJPEG card reports maxwidth=%d, maxheight=%d\n", zr->vc.maxwidth, zr->vc.maxheight);

	return 0;
}

static int init_zoran(zr_info_t *zr, int stretchx, int stretchy)
{
	/* center the image, and stretch it as far as possible (try to keep
	 * aspect) and check if it fits */
	if (zr->image_width > zr->vc.maxwidth) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: movie to be played is too wide, max width currently %d\n", zr->vc.maxwidth);
		return 1;
	}

	if (zr->image_height > zr->vc.maxheight) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: movie to be played is too high, max height currently %d\n", zr->vc.maxheight);
		return 1;
	}

	zr->p.decimation = 0;
	zr->p.HorDcm = stretchx;
	zr->p.VerDcm = stretchy;
	zr->p.TmpDcm = 1;
	zr->p.field_per_buff = zr->fields;
	if (zr->xdoff == -1) {
		zr->p.img_x = (zr->vc.maxwidth -
				zr->p.HorDcm*(int)zr->image_width/zr->hdec)/2;
	} else {
		zr->p.img_x = zr->xdoff;
	}
	if (zr->ydoff == -1) {
		zr->p.img_y = (zr->vc.maxheight - zr->p.VerDcm*
				(3-zr->fields)*(int)zr->image_height)/4;
	} else {
		zr->p.img_y = zr->ydoff;
	}
	zr->p.img_width = zr->p.HorDcm*zr->image_width/zr->hdec;
	zr->p.img_height = zr->p.VerDcm*zr->image_height/zr->fields;
	mp_msg(MSGT_VO, MSGL_V, "zr: geometry (after 'scaling'): %dx%d+%d+%d fields=%d, w=%d, h=%d\n", zr->p.img_width, (3-zr->fields)*zr->p.img_height, zr->p.img_x, zr->p.img_y, zr->fields, zr->image_width/zr->hdec, zr->image_height);

	if (ioctl(zr->vdes, MJPIOC_S_PARAMS, &zr->p) < 0) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error setting display parameters\n");
		return 1;
	}

	zr->zrq.count = MJPEG_NBUFFERS;
	zr->zrq.size = MJPEG_SIZE;

	if (ioctl(zr->vdes, MJPIOC_REQBUFS, &zr->zrq)) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error requesting %ld buffers of size %ld\n", zr->zrq.count, zr->zrq.size);
		return 1;
	}

	/* the buffer count allocated may be different to the request */
	zr->buf = (unsigned char*)mmap(0, zr->zrq.count*zr->zrq.size,
			PROT_READ|PROT_WRITE, MAP_SHARED, zr->vdes, 0);

	if (zr->buf == MAP_FAILED) {
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error requesting %ld buffers of size %ld\n", zr->zrq.count, zr->zrq.size);
		return 1;
	}

	mp_msg(MSGT_VO, MSGL_V, "zr: got %ld buffers of size %ld (wanted %d buffers of size %d)\n", zr->zrq.count, zr->zrq.size, MJPEG_NBUFFERS, MJPEG_SIZE);
	if (zr->zrq.count < MJPEG_NBUFFERS) {
		mp_msg(MSGT_VO, MSGL_V, "zr: got not enough buffers\n");
		return 1;
	}

	zr->queue = 0;
	zr->synco = 0;

	return 0;
}

static void uninit_zoran(zr_info_t *zr)
{
	if (zr->image) {
		free(zr->image);
		zr->image=NULL;
	}
	while (zr->queue > zr->synco + 1) {
		if (ioctl(zr->vdes, MJPIOC_SYNC, &zr->zs) < 0)
			mp_msg(MSGT_VO, MSGL_ERR, "zr: error waiting for buffers to become free\n");
		zr->synco++;
	}
	/* stop streaming */
	zr->frame = -1;
	if (ioctl(zr->vdes, MJPIOC_QBUF_PLAY, &zr->frame) < 0)
		mp_msg(MSGT_VO, MSGL_ERR, "zr: error stopping playback of last frame\n");
	if (munmap(zr->buf,zr->zrq.count*zr->zrq.size))
	   mp_msg(MSGT_VO, MSGL_ERR, "zr: error unmapping buffer\n");
	close(zr->vdes);
}

static int zr_geometry_sane(geo_t *g, unsigned int width, unsigned int height)
{
	if (g->set) {
		if (g->width%2 != 0 || g->height%2 != 0 ||
				g->xoff%2 != 0 || g->yoff%2 != 0) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: arguments in -zrcrop must be multiples of 2\n");
			return 1;
		}
		if (g->width <= 0 || g->height <= 0 ||
				g->xoff < 0 || g->yoff < 0) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: width and height must be positive and offset nonnegative\n");
			return 1;
		}
		if (g->width + g->xoff > width) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: width+xoffset (%d+%d>%d) is too big\n", g->width, g->xoff, width);
			return 1;
		}
		if (g->height + g->yoff > height) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: height+yoffset (%d+%d>%d) is too big\n", g->height, g->yoff, height);
			return 1;
		}
	} else {
		g->width = width;
		g->height = height;
		g->xoff = 0;
		g->yoff = 0;
		g->set = 1;
	}
	return 0;
}


static int config(uint32_t width, uint32_t height, uint32_t d_width,
	uint32_t d_height, uint32_t flags, char *title, uint32_t format)
{
	int i, tmp, stretchx, stretchy;
	framenum = 0;
	if (format != IMGFMT_YV12 && format != IMGFMT_YUY2) {
		printf("vo_zr called with wrong format");
		return 1;
	}
	for (i = 0; i < zr_count; i++) {
		zr_info_t *zr = &zr_info[i];
		geo_t *g = &zr->g;

		zr->stride = 2*width;
		if (zr_geometry_sane(g, width, height)) return 1;

		/* we must know the maximum resolution of the device
	 	 * it differs for DC10+ and buz for example */
		zoran_getcap(zr); /*must be called before init_zoran */
		/* make the scaling decision
		 * we are capable of stretching the image in the horizontal
		 * direction by factors 1, 2 and 4
		 * we can stretch the image in the vertical direction by a
		 * factor of 1 and 2 AND we must decide about interlacing */
		if (g->width > zr->vc.maxwidth/2 ||
				g->height > zr->vc.maxheight/2) {
			stretchx = 1;
			stretchy = 1;
			zr->fields = 2;
			if (zr->vdec == 2) {
				zr->fields = 1;
			} else if (zr->vdec == 4) {
				zr->fields = 1;
				stretchy = 2;
			}
			stretchx = zr->hdec;
		} else if (g->width > zr->vc.maxwidth/4 ||
				g->height > zr->vc.maxheight/4) {
			stretchx = 2;
			stretchy = 1;
			zr->fields = 1;
			if (zr->vdec == 2) {
				stretchy = 2;
			} else if (zr->vdec == 4) {
				if (!zr->fd) {
					mp_msg(MSGT_VO, MSGL_WARN, "zr: vertical decimation too high, changing to 2 (use -zrfd to keep vdec=4)\n");
					zr->vdec = 2;
				}
				stretchy = 2;
			}
			if (zr->hdec == 2) {
				stretchx = 4;
			} else if (zr->hdec == 4){
				if (!zr->fd) {
					mp_msg(MSGT_VO, MSGL_WARN, "zr: horizontal decimation too high, changing to 2 (use -zrfd to keep hdec=4)\n");
					zr->hdec = 2;
				}
				stretchx = 4;
			}
		} else {
			/* output image is maximally stretched */
			stretchx = 4;
			stretchy = 2;
			zr->fields = 1;
			if (zr->vdec != 1 && !zr->fd) {
				mp_msg(MSGT_VO, MSGL_WARN, "zr: vertical decimation too high, changing to 1 (use -zrfd to keep vdec=%d)\n", zr->vdec);
				zr->vdec = 1;
			}
			if (zr->hdec != 1 && !zr->fd) {
				mp_msg(MSGT_VO, MSGL_WARN, "zr: vertical decimation too high, changing to 1 (use -zrfd to keep hdec=%d)\n", zr->hdec);
				zr->hdec = 1;
			}
		}
		/* It can be that the original frame was too big for display,
		 * or that the width of the decimated image (for example) after
		 * padding up to a multiple of 16 has become too big. (orig
		 * width 720 (exactly right for the Buz) after decimation 360,
		 * after padding up to a multiple of 16 368, display 736 -> too
		 * large). In these situations we auto(re)crop. */
		tmp = 16*((g->width - 1)/(zr->hdec*16) + 1);
		if (stretchx*tmp > zr->vc.maxwidth) {
			g->xoff += 2*((g->width - zr->hdec*(tmp-16))/4);
			/* g->off must be a multiple of 2 */
			g->width = zr->hdec*(tmp - 16);
			g->set = 0; /* we abuse this field to
				       report that g has changed*/
		}
		tmp = 8*zr->fields*((g->height - 1)/(zr->vdec*zr->fields*8)+1);
		if (stretchy*tmp > zr->vc.maxheight) {
			g->yoff += 2*((g->height - zr->vdec*
						(tmp - 8*zr->fields))/4);
			g->height = zr->vdec*(tmp - 8*zr->fields);
			g->set = 0;
		}
		if (!g->set)
			mp_msg(MSGT_VO, MSGL_V, "zr: auto(re)cropping %dx%d+%d+%d to make the image fit on the screen\n", g->width, g->height, g->xoff, g->yoff);

		/* the height must be a multiple of fields*8 and the width
		 * must be a multiple of 16 */
		/* add some black borders to make it so, and center the image*/
		zr->image_height = zr->fields*8*((g->height/zr->vdec - 1)/
				(zr->fields*8) + 1);
		zr->image_width = (zr->hdec*16)*((g->width - 1)/(zr->hdec*16) + 1);
		zr->off_y = (zr->image_height - g->height/zr->vdec)/2;
		if (zr->off_y%2 != 0) zr->off_y++;
		zr->off_y *= zr->image_width;
		zr->off_c = zr->off_y/4;
		zr->off_y += (zr->image_width - g->width)/2;
		if (zr->off_y%2 != 0) zr->off_y--;
		zr->off_c += (zr->image_width - g->width)/4;
		zr->size = zr->image_width*zr->image_height;
		mp_msg(MSGT_VO, MSGL_V, "zr: input: %dx%d, cropped: %dx%d, output: %dx%d, off_y=%d, off_c=%d\n", width, height, g->width, g->height, zr->image_width, zr->image_height, zr->off_y, zr->off_c);

		zr->image = malloc(2*zr->size); /* this buffer allows for YUV422 data,
					 * so it is a bit too big for YUV420 */
		if (!zr->image) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: Memory exhausted\n");
			return 1;
		}
		/* and make sure that the borders are _really_ black */
		switch (format) {
			case IMGFMT_YV12:
				memset(zr->image, 0, zr->size);
				memset(zr->image + zr->size, 0x80, zr->size/4);
				memset(zr->image + 3*zr->size/2, 0x80, zr->size/4);
				zr->y_data = zr->image;
				zr->u_data = zr->image + zr->size;
				zr->v_data = zr->image + 3*zr->size/2;

				zr->y_stride = zr->image_width;
				zr->u_stride = zr->image_width/2;
				zr->v_stride = zr->image_width/2;

				zr->j = jpeg_enc_init(zr->image_width/zr->hdec,
						zr->image_height/zr->fields,
						zr->hdec, zr->y_stride*zr->fields,
						zr->hdec, zr->u_stride*zr->fields,
						zr->hdec, zr->v_stride*zr->fields,
						1, zr->quality, zr->bw);
				break;
			case IMGFMT_YUY2:
				for (tmp = 0; tmp < 2*zr->size; tmp+=4) {
					zr->image[tmp] = 0;
					zr->image[tmp+1] = 0x80;
					zr->image[tmp+2] = 0;
					zr->image[tmp+3] = 0x80;
				}

				zr->y_data = zr->image;
				zr->u_data = zr->image + 1;
				zr->v_data = zr->image + 3;

				zr->y_stride = 2*zr->image_width;
				zr->u_stride = 2*zr->image_width;
				zr->v_stride = 2*zr->image_width;

				zr->j = jpeg_enc_init(zr->image_width/zr->hdec,
						zr->image_height/zr->fields,
						zr->hdec*2,
						zr->y_stride*zr->fields,
						zr->hdec*4,
						zr->u_stride*zr->fields,
						zr->hdec*4,
						zr->v_stride*zr->fields,
						0, zr->quality, zr->bw);
				break;
			default:
				mp_msg(MSGT_VO, MSGL_FATAL, "zr: internal inconsistency in vo_zr\n");
		}


		if (zr->j == NULL) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: error initializing the jpeg encoder\n");
			return 1;
		}

		if (init_zoran(zr, stretchx, stretchy)) {
			return 1;
		}

	}
	return 0;
}

static void draw_osd(void) {
}

static void flip_page (void) {
	int i, j, k;
	//FILE *fp;
	//char filename[100];
	/* do we have a free buffer? */
	for (j = 0; j < zr_count; j++) {
		zr_info_t *zr = &zr_info[j];
		/* using MJPEG_NBUFFERS here, using the real number of
		 * buffers may give sync issues (real number of buffers
		 * is always sufficient) */
		if (zr->queue-zr->synco < MJPEG_NBUFFERS) {
			zr->frame = zr->queue;
		} else {
			if (ioctl(zr->vdes, MJPIOC_SYNC, &zr->zs) < 0)
				mp_msg(MSGT_VO, MSGL_ERR, "zr: error waiting for buffers to become free\n");
			zr->frame = zr->zs.frame;
			zr->synco++;
		}
		k=0;
		for (i = 0; i < zr->fields; i++)
			k+=jpeg_enc_frame(zr->j, zr->y_data + i*zr->y_stride,
					zr->u_data + i*zr->u_stride,
					zr->v_data + i*zr->v_stride,
					zr->buf + zr->frame*zr->zrq.size+k);
		if (k > zr->zrq.size) mp_msg(MSGT_VO, MSGL_WARN, "zr: jpeg image too large for maximum buffer size. Lower the jpeg encoding\nquality or the resolution of the movie.\n");
	}
	/* Warning: Only the first jpeg image contains huffman- and
	 * quantisation tables, so don't expect files other than
	 * test0001.jpg to be readable */
	/*sprintf(filename, "test%04d.jpg", framenum);
	fp = fopen(filename, "w");
	if (!fp) exit(1);
	fwrite(buf+frame*zrq.size, 1, k, fp);
	fclose(fp);*/
	/*fp = fopen("test1.jpg", "r");
	fread(buf+frame*zrq.size, 1, 2126, fp);
	fclose(fp);*/

	for (j = 0; j < zr_count; j++) {
		zr_info_t *zr = &zr_info[j];
		if (ioctl(zr->vdes, MJPIOC_QBUF_PLAY, &zr->frame) < 0)
			mp_msg(MSGT_VO, MSGL_ERR, "zr: error queueing buffer for playback\n");
		zr->queue++;
	}

	framenum++;
	return;
}

static int draw_frame(uint8_t * src[]) {
	int i, j;
	char *source, *dest;
	//printf("draw frame called\n");
	for (j = 0; j < zr_count; j++) {
		zr_info_t *zr = &zr_info[j];
		geo_t *g = &zr->g;
		source = src[0] + 2*g->yoff*zr->vdec*zr->stride + 2*g->xoff;
		dest = zr->image + 2*zr->off_y;
		for (i = 0; i < g->height/zr->vdec; i++) {
			fast_memcpy(dest, source, zr->image_width*2);
			dest += 2*zr->image_width;
			source += zr->vdec*zr->stride;
		}
	}
	return 0;
}

static int query_format(uint32_t format) {
	if(format==IMGFMT_YV12 || format==IMGFMT_YUY2)
	    return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
	return 0;
}

static void uninit(void) {
	int j;
	mp_msg(MSGT_VO, MSGL_V, "zr: uninit called\n");
	for (j = 0; j < zr_count; j++) {
		jpeg_enc_uninit(zr_info[j].j);
		uninit_zoran(&zr_info[j]);
	}
}

static void check_events(void) {
}


static int draw_slice(uint8_t *srcimg[], int stride[],
		int wf, int hf, int xf, int yf) {
	int i, j, w, h, x, y;
	/* Apply 'geometry', crop unwanted parts */
	uint8_t *dst;
	//printf("before: w=%d, h=%d, x=%d, y=%d, src0=%p, src1=%p, src2=%p\n", w, h, x, y, srcimg[0], srcimg[1], srcimg[2]);
	for (j = 0; j < zr_count; j++) {
		uint8_t *src=srcimg[0];
		uint8_t *src1=srcimg[1];
		uint8_t *src2=srcimg[2];
		zr_info_t *zr = &zr_info[j];
		geo_t *g = &zr->g;
		w = wf; h = hf; x = xf; y = yf;
		if (x < g->xoff) {
			src += g->xoff - x;
			src1 += (g->xoff - x)/2;
			src2 += (g->xoff - x)/2;
			w -= g->xoff - x;
			if (w < 0) break; //return 0;
			x = 0 /*g.xoff*/;
		} else {
			x -= g->xoff;
		}
		if (x + w > g->width) {
			w = g->width - x;
			if (w < 0) break; //return 0;
		}
		if (y < g->yoff) {
			src += (g->yoff - y)*stride[0];
			src1 += ((g->yoff - y)/2)*stride[1];
			src2 += ((g->yoff - y)/2)*stride[2];
			h -= g->yoff - y;
			if (h < 0) break; //return 0;
			y = 0;
		} else {
			y -= g->yoff;
		}
		if (y + h > g->height) {
			h = g->height - y;
			if (h < 0) break; //return 0;
		}
		//printf("after: w=%d, h=%d, x=%d, y=%d, src0=%p, src1=%p, src2=%p\n", w, h, x, y, srcimg[0], srcimg[1], srcimg[2]);
		dst=zr->image + zr->off_y + zr->image_width*(y/zr->vdec)+x;
		// copy Y:
		for (i = 0; i < h; i++) {
			if ((i + x)%zr->vdec == 0) {
				fast_memcpy(dst,src,w);
				dst+=zr->image_width;
			}
			src+=stride[0];

		}
		if (!zr->bw) {
    			// copy U+V:
			uint8_t *dst1=zr->image + zr->size + zr->off_c+ (y/(zr->vdec*2))*zr->image_width/2+(x/2);
			uint8_t *dst2=zr->image + 3*zr->size/2 + zr->off_c +
					(y/(zr->vdec*2))*
					zr->image_width/2+(x/2);
			for (i = 0; i< h/2; i++) {
				if ((i+x/2)%zr->vdec == 0) {
					fast_memcpy(dst1,src1,w/2);
					fast_memcpy(dst2,src2,w/2);
					dst1+=zr->image_width/2;
					dst2+=zr->image_width/2;
				}
				src1+=stride[1];
				src2+=stride[2];
			}
    		}
	}
 	return 0;
}


/* copied and adapted from vo_aa_parseoption */
int
vo_zr_parseoption(const m_option_t* conf, const char *opt, const char *param){
    /* got an option starting with zr */
    zr_info_t *zr = &zr_info[zr_parsing];
    int i;
    /* do WE need it ?, always */
    if (!strcasecmp(opt, "zrdev")) {
	if (param == NULL) return ERR_MISSING_PARAM;
	//if ((i=getcolor(param))==-1) return ERR_OUT_OF_RANGE;
	//aaopt_osdcolor=i;
	free(zr->device);
	zr->device = malloc(strlen(param)+1);
	strcpy(zr->device, param);
	mp_msg(MSGT_VO, MSGL_V, "zr: using device %s\n", zr->device);
	return 1;
    } else if (!strcasecmp(opt, "zrbw")) {
	    if (param != NULL) {
		    return ERR_OUT_OF_RANGE;
	    }
	    zr->bw = 1;
	    return 1;
    } else if (!strcasecmp(opt, "zrfd")) {
	    if (param != NULL) {
		    return ERR_OUT_OF_RANGE;
	    }
	    zr->fd = 1;
	    return 1;
    } else if (!strcasecmp(opt, "zrcrop")){
        geo_t *g = &zr->g;
	if (g->set == 1) {
		zr_parsing++;
		zr_count++;
    		zr = &zr_info[zr_parsing];
        	g = &zr->g;
		if (zr_count > 4) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: too many simultaneus display devices requested (max. is 4)\n");
			return ERR_OUT_OF_RANGE;
		}
	}
	if (param == NULL) return ERR_MISSING_PARAM;
	if (sscanf(param, "%dx%d+%d+%d", &g->width, &g->height,
				&g->xoff, &g->yoff) != 4) {
		g->xoff = 0; g->yoff = 0;
		if (sscanf(param, "%dx%d", &g->width, &g->height) != 2) {
			mp_msg(MSGT_VO, MSGL_ERR, "zr: argument to -zrcrop must be of the form 352x288+16+0\n");
			return ERR_OUT_OF_RANGE;
		}
	}
	g->set = 1;
	mp_msg(MSGT_VO, MSGL_V, "zr: cropping %s\n", param);
	return 1;
    }else if (!strcasecmp(opt, "zrhdec")) {
        i = atoi(param);
	if (i != 1 && i != 2 && i != 4) return ERR_OUT_OF_RANGE;
	zr->hdec = i;
	return 1;
    }else if (!strcasecmp(opt, "zrvdec")) {
        i = atoi(param);
	if (i != 1 && i != 2 && i != 4) return ERR_OUT_OF_RANGE;
	zr->vdec = i;
	return 1;
    }else if (!strcasecmp(opt, "zrxdoff")) {
        i = atoi(param);
	zr->xdoff = i;
	return 1;
    }else if (!strcasecmp(opt, "zrydoff")) {
        i = atoi(param);
	zr->ydoff = i;
	return 1;
    }else if (!strcasecmp(opt, "zrquality")) {
        i = atoi(param);
	if (i < 1 || i > 20) return ERR_OUT_OF_RANGE;
	zr->quality = i;
	return 1;
    }else if (!strcasecmp(opt, "zrnorm")) {
	if (param == NULL) return ERR_MISSING_PARAM;
	if (!strcasecmp(param, "NTSC")) {
            mp_msg(MSGT_VO, MSGL_V, "zr: Norm set to NTSC\n");
            zr->norm = VIDEO_MODE_NTSC;
	    return 1;
	} else if (!strcasecmp(param, "PAL")) {
	    mp_msg(MSGT_VO, MSGL_V, "zr: Norm set to PAL\n");
            zr->norm = VIDEO_MODE_PAL;
	    return 1;
	} else {
           return ERR_OUT_OF_RANGE;
        }
    }else if (!strcasecmp(opt, "zrhelp")){
	printf("Help for -vo zr: Zoran ZR360[56]7/ZR36060 based MJPEG capture/playback cards\n");
	printf("\n");
	printf("Here are the zr options:\n");
	printf(
		    "\n"
		    "  -zrcrop     specify part of the input image that\n"
		    "              you want to see as an x-style geometry string\n"
		    "              example: -zrcrop 352x288+16+0\n"
		    "  -zrvdec     vertical decimation 1, 2 or 4\n"
		    "  -zrhdec     horizontal decimation 1, 2 or 4\n"
		    "  -zrfd       decimation is only done if the primitive\n"
		    "              hardware upscaler can correct for the decimation,\n"
		    "              this switch allows you to see the effects\n"
		    "              of too much decimation\n"
		    "  -zrbw       display in black&white (speed increase)\n"
		    "  -zrxdoff    x offset from upper-left of TV screen (default is 'centered')\n"
		    "  -zrydoff    y offset from upper-left of TV screen (default is 'centered')\n"
		    "  -zrquality  jpeg compression quality [BEST] 1 - 20 [VERY BAD]\n"
		    "  -zrdev      playback device (example -zrdev /dev/video1)\n"
		    "  -zrnorm     specify norm PAL/NTSC (default: leave at current setting)\n"
		    "\n"
		    "Cinerama support: additional occurances of -zrcrop activate cinerama mode,\n"
		    "suppose you have a 704x272 movie, two DC10+ cards and two beamers (or tv's),\n"
		    "then you would issue the following command:\n\n"
		    "mplayer -vo zr -zrcrop 352x272+0+0 -zrdev /dev/video0 -zrcrop 352x272+352+0 \\\n"
		    "       -zrdev /dev/video1 movie.avi\n\n"
		    "Options appearing after the second -zrcrop apply to the second card, it is\n"
		    "possible to dispay at a different jpeg quality or at different decimations.\n\n"
		    "The parameters -zrxdoff and -zrydoff can be used to align the two images.\n"
		    "The maximum number of zoran cards participating in cinerama is 4, so you can\n"
		    "build a 2x2 vidiwall. (untested for obvious reasons, the setup wit a buz and\n"
		    "a DC10+ (and no beamers) is tested, however)\n"
	      );
	exit(0);

    }
    return ERR_NOT_AN_OPTION;
}

void vo_zr_revertoption(const m_option_t* opt,const char* param) {

  zr_info_t *zr = &zr_info[1];
  zr_count = 1;
  zr_parsing = 0;

  if (!strcasecmp(param, "zrdev")) {
    if(zr->device)
      free(zr->device);
    zr->device=NULL;
  } else if (!strcasecmp(param, "zrbw"))
    zr->bw=0;
  else if (!strcasecmp(param, "zrfd"))
    zr->fd=0;
  else if (!strcasecmp(param, "zrcrop"))
    zr->g.set = zr->g.xoff = zr->g.yoff = 0;
  else if (!strcasecmp(param, "zrhdec"))
    zr->hdec = 1;
  else if (!strcasecmp(param, "zrvdec"))
    zr->vdec = 1;
  else if (!strcasecmp(param, "zrxdoff"))
    zr->xdoff = -1;
  else if (!strcasecmp(param, "zrydoff"))
    zr->ydoff = -1;
  else if (!strcasecmp(param, "zrquality"))
    zr->quality = 2;
  else if (!strcasecmp(param, "zrnorm"))
    zr->norm = VIDEO_MODE_AUTO;

}

static int preinit(const char *arg)
{
    if(arg)
    {
	printf("vo_zr: Unknown subdevice: %s\n",arg);
	return ENOSYS;
    }
    return 0;
}

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