forked from sackmotion/motion
-
Notifications
You must be signed in to change notification settings - Fork 1
/
video2.c
1133 lines (912 loc) · 37.5 KB
/
video2.c
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
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* video2.c
*
* V4L2 interface with basically JPEG decompression support and even more ...
* Copyright 2006 Krzysztof Blaszkowski ([email protected])
* 2007 Angel Carpintero ([email protected])
* Supported features and TODO
- preferred palette is JPEG which seems to be very popular for many 640x480 usb cams
- other supported palettes (NOT TESTED)
V4L2_PIX_FMT_SN9C10X (sonix)
V4L2_PIX_FMT_SBGGR16,
V4L2_PIX_FMT_SBGGR8, (sonix)
V4L2_PIX_FMT_SPCA561,
V4L2_PIX_FMT_SGBRG8,
V4L2_PIX_FMT_SGRBG8,
V4L2_PIX_FMT_PAC207,
V4L2_PIX_FMT_PJPG,
V4L2_PIX_FMT_MJPEG, (tested)
V4L2_PIX_FMT_JPEG, (tested)
V4L2_PIX_FMT_RGB24,
V4L2_PIX_FMT_SPCA501,
V4L2_PIX_FMT_SPCA505,
V4L2_PIX_FMT_SPCA508,
V4L2_PIX_FMT_UYVY, (tested)
V4L2_PIX_FMT_YUV422P,
V4L2_PIX_FMT_YUV420, (tested)
V4L2_PIX_FMT_YUYV (tested)
* - setting tuner - NOT TESTED
* - access to V4L2 device controls is missing. Partially added but requires some improvements likely.
* - changing resolution at run-time may not work.
* - ucvideo svn r75 or above to work with MJPEG ( e.g. Logitech 5000 pro )
* This work is inspired by fswebcam and current design of motion.
* This interface has been tested with ZC0301 driver from kernel 2.6.17.3 and Labtec's usb camera (PAS202 sensor)
* I'm very pleased by achieved image quality and cpu usage comparing to junky v4l1 spca5xx driver with
* it nonsensical kernel messy jpeg decompressor.
* Default sensor settings used by ZC0301 driver are very reasonable choosen.
* apparently brigthness should be controlled automatically by motion still for light compensation.
* it can be done by adjusting ADC gain and also exposure time.
* Kernel 2.6.27
V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1') YUYV per line
V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5') YYUV per line
V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8') YUVY per line
V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') 8 GBGB.. RGRG..
V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G') 8 GRGR.. BGBG..
V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') 16 BGBG.. GRGR..
V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') compressed GBRG bayer
V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G') Pixart 73xx JPEG
V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') compressed BGGR bayer
*
* This program 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.
*
* This program 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.
let's go :)
*/
#if !defined(WITHOUT_V4L) && defined(MOTION_V4L2)
#include "motion.h"
#include "video.h"
#ifdef MOTION_V4L2_OLD
// Seems that is needed for some system
#include <linux/time.h>
#include <linux/videodev2.h>
#endif
#define u8 unsigned char
#define u16 unsigned short
#define u32 unsigned int
#define s32 signed int
#define MMAP_BUFFERS 4
#define MIN_MMAP_BUFFERS 2
#ifndef V4L2_PIX_FMT_SBGGR8
/* see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */
#endif
#ifndef V4L2_PIX_FMT_MJPEG
#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
#endif
#ifndef V4L2_PIX_FMT_SN9C10X
#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
#endif
#ifndef V4L2_PIX_FMT_SGBRG8
#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
#endif
#ifndef V4L2_PIX_FMT_SGRBG8
#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */
#endif
#ifndef V4L2_PIX_FMT_SBGGR16
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
#endif
#ifndef V4L2_PIX_FMT_SPCA561
#define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
#endif
#ifndef V4L2_PIX_FMT_PJPG
#define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
#endif
#ifndef V4L2_PIX_FMT_PAC207
#define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
#endif
#ifndef V4L2_PIX_FMT_SPCA501
#define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
#endif
#ifndef V4L2_PIX_FMT_SPCA505
#define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
#endif
#ifndef V4L2_PIX_FMT_SPCA508
#define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
#endif
#define ZC301_V4L2_CID_DAC_MAGN V4L2_CID_PRIVATE_BASE
#define ZC301_V4L2_CID_GREEN_BALANCE (V4L2_CID_PRIVATE_BASE+1)
static const u32 queried_ctrls[] = {
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
/* first added in Linux kernel v2.6.26 */
#ifdef V4L2_CID_POWER_LINE_FREQUENCY
V4L2_CID_POWER_LINE_FREQUENCY,
#endif
V4L2_CID_RED_BALANCE,
V4L2_CID_BLUE_BALANCE,
V4L2_CID_GAMMA,
V4L2_CID_EXPOSURE,
V4L2_CID_AUTOGAIN,
V4L2_CID_GAIN,
ZC301_V4L2_CID_DAC_MAGN,
ZC301_V4L2_CID_GREEN_BALANCE,
0
};
typedef struct {
int fd;
u32 fps;
struct v4l2_capability cap;
struct v4l2_format src_fmt;
struct v4l2_format dst_fmt;
struct v4l2_requestbuffers req;
struct v4l2_buffer buf;
video_buff *buffers;
s32 pframe;
u32 ctrl_flags;
struct v4l2_queryctrl *controls;
volatile unsigned int *finish; /* End the thread */
} src_v4l2_t;
/**
* xioctl
*/
static int xioctl(src_v4l2_t *vid_source, int request, void *arg)
{
int ret;
do
ret = ioctl(vid_source->fd, request, arg);
while (-1 == ret && EINTR == errno && !vid_source->finish);
return ret;
}
/**
* v4l2_get_capability
*/
static int v4l2_get_capability(src_v4l2_t * vid_source)
{
if (xioctl(vid_source, VIDIOC_QUERYCAP, &vid_source->cap) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "%s: Not a V4L2 device?");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: \n------------------------\n"
"cap.driver: \"%s\"\n"
"cap.card: \"%s\"\n"
"cap.bus_info: \"%s\"\n"
"cap.capabilities=0x%08X\n------------------------",
vid_source->cap.driver, vid_source->cap.card, vid_source->cap.bus_info,
vid_source->cap.capabilities);
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OVERLAY)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_OVERLAY");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VBI_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VBI_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_RDS_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - RDS_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TUNER");
if (vid_source->cap.capabilities & V4L2_CAP_AUDIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - AUDIO");
if (vid_source->cap.capabilities & V4L2_CAP_READWRITE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - READWRITE");
if (vid_source->cap.capabilities & V4L2_CAP_ASYNCIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - ASYNCIO");
if (vid_source->cap.capabilities & V4L2_CAP_STREAMING)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - STREAMING");
if (vid_source->cap.capabilities & V4L2_CAP_TIMEPERFRAME)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TIMEPERFRAME");
if (!(vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "%s: Device does not support capturing.");
return -1;
}
return 0;
}
/**
* v4l2_select_input
*/
static int v4l2_select_input(struct config *conf, struct video_dev *viddev,
src_v4l2_t * vid_source, int in, int norm,
unsigned long freq_, int tuner_number ATTRIBUTE_UNUSED)
{
struct v4l2_input input;
struct v4l2_standard standard;
v4l2_std_id std_id;
/* Set the input. */
memset(&input, 0, sizeof (input));
if (in == IN_DEFAULT)
input.index = IN_TV;
else input.index = in;
if (xioctl(vid_source, VIDIOC_ENUMINPUT, &input) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to query input %d."
" VIDIOC_ENUMINPUT, if you use a WEBCAM change input value in conf by -1",
input.index);
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: name = \"%s\", type 0x%08X,"
" status %08x", input.name, input.type, input.status);
if (input.type & V4L2_INPUT_TYPE_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TUNER");
if (input.type & V4L2_INPUT_TYPE_CAMERA)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - CAMERA");
if (xioctl(vid_source, VIDIOC_S_INPUT, &input.index) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error selecting input %d"
" VIDIOC_S_INPUT", input.index);
return -1;
}
viddev->input = conf->input = in;
/*
* Set video standard usually webcams doesn't support the ioctl or
* return V4L2_STD_UNKNOWN
*/
if (xioctl(vid_source, VIDIOC_G_STD, &std_id) == -1) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: Device doesn't support VIDIOC_G_STD");
norm = std_id = 0; // V4L2_STD_UNKNOWN = 0
}
if (std_id) {
memset(&standard, 0, sizeof(standard));
standard.index = 0;
while (xioctl(vid_source, VIDIOC_ENUMSTD, &standard) == 0) {
if (standard.id & std_id)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - video standard %s",
standard.name);
standard.index++;
}
switch (norm) {
case 1:
std_id = V4L2_STD_NTSC;
break;
case 2:
std_id = V4L2_STD_SECAM;
break;
default:
std_id = V4L2_STD_PAL;
}
if (xioctl(vid_source, VIDIOC_S_STD, &std_id) == -1)
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error selecting standard"
" method %d VIDIOC_S_STD", (int)std_id);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set standard method %d",
(int)std_id);
}
viddev->norm = conf->norm = norm;
/* If this input is attached to a tuner, set the frequency. */
if (input.type & V4L2_INPUT_TYPE_TUNER) {
struct v4l2_tuner tuner;
struct v4l2_frequency freq;
/* Query the tuners capabilities. */
memset(&tuner, 0, sizeof(struct v4l2_tuner));
tuner.index = input.tuner;
if (xioctl(vid_source, VIDIOC_G_TUNER, &tuner) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: tuner %d VIDIOC_G_TUNER",
tuner.index);
return 0;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set tuner %d",
tuner.index);
/* Set the frequency. */
memset(&freq, 0, sizeof(struct v4l2_frequency));
freq.tuner = input.tuner;
freq.type = V4L2_TUNER_ANALOG_TV;
freq.frequency = (freq_ / 1000) * 16;
if (xioctl(vid_source, VIDIOC_S_FREQUENCY, &freq) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: freq %ul VIDIOC_S_FREQUENCY",
freq.frequency);
return 0;
}
viddev->freq = conf->frequency = freq_;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set Frequency to %ul",
freq.frequency);
} else {
viddev->freq = conf->frequency = 0;
}
return 0;
}
/* *
* v4l2_do_set_pix_format
*
* This routine does the actual request to the driver
*
* Returns: 0 Ok
* -1 Problems setting palette or not supported
*
* Our algorithm for setting the picture format for the data which the
* driver returns to us will be as follows:
*
* First, we request that the format be set to whatever is in the config
* file (which is either the motion default, or a value chosen by the user).
* If that request is successful, we are finished.
*
* If the driver responds that our request is not accepted, we then enumerate
* the formats which the driver claims to be able to supply. From this list,
* we choose whichever format is "most efficient" for motion. The enumerated
* list is also printed to the motion log so that the user can consider
* choosing a different value for the config file.
*
* We then request the driver to set the format we have chosen. That request
* should never fail, so if it does we log the fact and give up.
*/
static int v4l2_do_set_pix_format(u32 pixformat, src_v4l2_t * vid_source,
int *width, int *height)
{
CLEAR(vid_source->dst_fmt);
vid_source->dst_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->dst_fmt.fmt.pix.width = *width;
vid_source->dst_fmt.fmt.pix.height = *height;
vid_source->dst_fmt.fmt.pix.pixelformat = pixformat;
vid_source->dst_fmt.fmt.pix.field = V4L2_FIELD_ANY;
if (xioctl(vid_source, VIDIOC_TRY_FMT, &vid_source->dst_fmt) != -1 &&
vid_source->dst_fmt.fmt.pix.pixelformat == pixformat) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Testing palette %c%c%c%c (%dx%d)",
pixformat >> 0, pixformat >> 8,
pixformat >> 16, pixformat >> 24, *width, *height);
if (vid_source->dst_fmt.fmt.pix.width != (unsigned int) *width ||
vid_source->dst_fmt.fmt.pix.height != (unsigned int) *height) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: Adjusting resolution "
"from %ix%i to %ix%i.",
*width, *height, vid_source->dst_fmt.fmt.pix.width,
vid_source->dst_fmt.fmt.pix.height);
*width = vid_source->dst_fmt.fmt.pix.width;
*height = vid_source->dst_fmt.fmt.pix.height;
}
if (xioctl(vid_source, VIDIOC_S_FMT, &vid_source->dst_fmt) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error setting pixel "
"format.\nVIDIOC_S_FMT: ");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Using palette %c%c%c%c (%dx%d)"
" bytesperlines %d sizeimage %d colorspace %08x", pixformat >> 0,
pixformat >> 8, pixformat >> 16, pixformat >> 24, *width,
*height, vid_source->dst_fmt.fmt.pix.bytesperline,
vid_source->dst_fmt.fmt.pix.sizeimage,
vid_source->dst_fmt.fmt.pix.colorspace);
return 0;
}
return -1;
}
/**
* v4l2_set_pix_format
*
* Returns: 0 Ok
* -1 Problems setting palette or not supported
*/
static int v4l2_set_pix_format(struct context *cnt, src_v4l2_t * vid_source,
int *width, int *height)
{
struct v4l2_fmtdesc fmtd;
int v4l2_pal;
/*
* Note that this array MUST exactly match the config file list.
* A higher index means better chance to be used
*/
static const u32 supported_formats[] = {
V4L2_PIX_FMT_SN9C10X,
V4L2_PIX_FMT_SBGGR16,
V4L2_PIX_FMT_SBGGR8,
V4L2_PIX_FMT_SPCA561,
V4L2_PIX_FMT_SGBRG8,
V4L2_PIX_FMT_SGRBG8,
V4L2_PIX_FMT_PAC207,
V4L2_PIX_FMT_PJPG,
V4L2_PIX_FMT_MJPEG,
V4L2_PIX_FMT_JPEG,
V4L2_PIX_FMT_RGB24,
V4L2_PIX_FMT_SPCA501,
V4L2_PIX_FMT_SPCA505,
V4L2_PIX_FMT_SPCA508,
V4L2_PIX_FMT_UYVY,
V4L2_PIX_FMT_YUYV,
V4L2_PIX_FMT_YUV422P,
V4L2_PIX_FMT_YUV420 /* most efficient for motion */
};
int array_size = sizeof(supported_formats) / sizeof(supported_formats[0]);
int index_format = -1; /* -1 says not yet chosen */
CLEAR(fmtd);
fmtd.index = v4l2_pal = 0;
fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
/* First we try a shortcut of just setting the config file value */
if (cnt->conf.v4l2_palette >= 0) {
char name[5] = {supported_formats[cnt->conf.v4l2_palette] >> 0,
supported_formats[cnt->conf.v4l2_palette] >> 8,
supported_formats[cnt->conf.v4l2_palette] >> 16,
supported_formats[cnt->conf.v4l2_palette] >> 24, 0};
if (v4l2_do_set_pix_format(supported_formats[cnt->conf.v4l2_palette],
vid_source, width, height) >= 0)
return 0;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Config palette index %d (%s)"
" doesn't work.", cnt->conf.v4l2_palette, name);
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Supported palettes:");
while (xioctl(vid_source, VIDIOC_ENUM_FMT, &fmtd) != -1) {
int i;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: (%i) %c%c%c%c (%s)",
v4l2_pal, fmtd.pixelformat >> 0,
fmtd.pixelformat >> 8, fmtd.pixelformat >> 16,
fmtd.pixelformat >> 24, fmtd.description);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: %d - %s (compressed : %d) (%#x)",
fmtd.index, fmtd.description, fmtd.flags, fmtd.pixelformat);
/* Adjust index_format if larger value found */
for (i = index_format + 1; i < array_size; i++)
if (supported_formats[i] == fmtd.pixelformat)
index_format = i;
CLEAR(fmtd);
fmtd.index = ++v4l2_pal;
fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
if (index_format >= 0) {
char name[5] = {supported_formats[index_format] >> 0,
supported_formats[index_format] >> 8,
supported_formats[index_format] >> 16,
supported_formats[index_format] >> 24, 0};
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s Selected palette %s", name);
if (v4l2_do_set_pix_format(supported_formats[index_format],
vid_source, width, height) >= 0)
return 0;
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_TRY_FMT failed for "
"format %s", name);
}
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "%s: Unable to find a compatible"
" palette format.");
return -1;
}
#if 0
static void v4l2_set_fps(src_v4l2_t * vid_source) {
struct v4l2_streamparm* setfps;
setfps = (struct v4l2_streamparm *) calloc(1, sizeof(struct v4l2_streamparm));
memset(setfps, 0, sizeof(struct v4l2_streamparm));
setfpvid_source->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
setfpvid_source->parm.capture.timeperframe.numerator = 1;
setfpvid_source->parm.capture.timeperframe.denominator = vid_source->fps;
if (xioctl(vid_source, VIDIOC_S_PARM, setfps) == -1)
MOTION_LOG(ERR, 1, "%s: v4l2_set_fps VIDIOC_S_PARM");
}
#endif
/**
* v4l2_set_mmap
*/
static int v4l2_set_mmap(src_v4l2_t * vid_source)
{
enum v4l2_buf_type type;
u32 buffer_index;
/* Does the device support streaming? */
if (!(vid_source->cap.capabilities & V4L2_CAP_STREAMING))
return -1;
memset(&vid_source->req, 0, sizeof(struct v4l2_requestbuffers));
vid_source->req.count = MMAP_BUFFERS;
vid_source->req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->req.memory = V4L2_MEMORY_MMAP;
if (xioctl(vid_source, VIDIOC_REQBUFS, &vid_source->req) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error requesting buffers"
" %d for memory map. VIDIOC_REQBUFS",
vid_source->req.count);
return -1;
}
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "%s: mmap information: frames=%d",
vid_source->req.count);
if (vid_source->req.count < MIN_MMAP_BUFFERS) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Insufficient buffer memory"
" %d < MIN_MMAP_BUFFERS.", vid_source->req.count);
return -1;
}
vid_source->buffers = calloc(vid_source->req.count, sizeof(video_buff));
if (!vid_source->buffers) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Out of memory.");
return -1;
}
for (buffer_index = 0; buffer_index < vid_source->req.count; buffer_index++) {
struct v4l2_buffer buf;
memset(&buf, 0, sizeof(struct v4l2_buffer));
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = buffer_index;
if (xioctl(vid_source, VIDIOC_QUERYBUF, &buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error querying buffer"
" %i\nVIDIOC_QUERYBUF: ", buffer_index);
free(vid_source->buffers);
return -1;
}
vid_source->buffers[buffer_index].size = buf.length;
vid_source->buffers[buffer_index].ptr = mmap(NULL, buf.length, PROT_READ | PROT_WRITE,
MAP_SHARED, vid_source->fd, buf.m.offset);
if (vid_source->buffers[buffer_index].ptr == MAP_FAILED) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error mapping buffer %i mmap",
buffer_index);
free(vid_source->buffers);
return -1;
}
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "%s: %i length=%d Address (%x)",
buffer_index, buf.length, vid_source->buffers[buffer_index].ptr);
}
for (buffer_index = 0; buffer_index < vid_source->req.count; buffer_index++) {
memset(&vid_source->buf, 0, sizeof(struct v4l2_buffer));
vid_source->buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->buf.memory = V4L2_MEMORY_MMAP;
vid_source->buf.index = buffer_index;
if (xioctl(vid_source, VIDIOC_QBUF, &vid_source->buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: VIDIOC_QBUF");
return -1;
}
}
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (xioctl(vid_source, VIDIOC_STREAMON, &type) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error starting stream."
" VIDIOC_STREAMON");
return -1;
}
return 0;
}
/**
* v4l2_scan_controls
*/
static int v4l2_scan_controls(src_v4l2_t * vid_source)
{
int count, i;
struct v4l2_queryctrl queryctrl;
memset(&queryctrl, 0, sizeof(struct v4l2_queryctrl));
for (i = 0, count = 0; queried_ctrls[i]; i++) {
queryctrl.id = queried_ctrls[i];
if (xioctl(vid_source, VIDIOC_QUERYCTRL, &queryctrl))
continue;
count++;
vid_source->ctrl_flags |= 1 << i;
}
if (count) {
struct v4l2_queryctrl *ctrl = vid_source->controls
= calloc(count, sizeof(struct v4l2_queryctrl));
if (!ctrl) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Insufficient buffer memory.");
return -1;
}
for (i = 0; queried_ctrls[i]; i++) {
if (vid_source->ctrl_flags & (1 << i)) {
struct v4l2_control control;
queryctrl.id = queried_ctrls[i];
if (xioctl(vid_source, VIDIOC_QUERYCTRL, &queryctrl))
continue;
memcpy(ctrl, &queryctrl, sizeof(struct v4l2_queryctrl));
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: found control 0x%08x, \"%s\","
" range %d,%d %s",
ctrl->id, ctrl->name, ctrl->minimum, ctrl->maximum,
ctrl->flags & V4L2_CTRL_FLAG_DISABLED ? "!DISABLED!" : "");
memset(&control, 0, sizeof (control));
control.id = queried_ctrls[i];
xioctl(vid_source, VIDIOC_G_CTRL, &control);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: \t\"%s\", default %d, current %d",
ctrl->name, ctrl->default_value, control.value);
ctrl++;
}
}
}
return 0;
}
/**
* v4l2_set_control
*/
static int v4l2_set_control(src_v4l2_t * vid_source, u32 cid, int value)
{
int i, count;
if (!vid_source->controls)
return -1;
for (i = 0, count = 0; queried_ctrls[i]; i++) {
if (vid_source->ctrl_flags & (1 << i)) {
if (cid == queried_ctrls[i]) {
struct v4l2_queryctrl *ctrl = vid_source->controls + count;
struct v4l2_control control;
int ret;
memset(&control, 0, sizeof (control));
control.id = queried_ctrls[i];
switch (ctrl->type) {
case V4L2_CTRL_TYPE_INTEGER:
value = control.value =
(value * (ctrl->maximum - ctrl->minimum) / 256) + ctrl->minimum;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
case V4L2_CTRL_TYPE_BOOLEAN:
value = control.value = value ? 1 : 0;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
case V4L2_CTRL_TYPE_MENU:
/* set as is, no adjustments */
control.value = value;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
default:
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: control type not supported yet");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: setting control \"%s\" to %d"
" (ret %d %s) %s", ctrl->name, value, ret, ret ? strerror(errno) : "",
ctrl->flags & V4L2_CTRL_FLAG_DISABLED ? "Control is DISABLED!" : "");
return 0;
}
count++;
}
}
return -1;
}
/**
* v4l2_picture_controls
*/
static void v4l2_picture_controls(struct context *cnt, struct video_dev *viddev)
{
src_v4l2_t *vid_source = (src_v4l2_t *) viddev->v4l2_private;
if (cnt->conf.contrast && cnt->conf.contrast != viddev->contrast) {
viddev->contrast = cnt->conf.contrast;
v4l2_set_control(vid_source, V4L2_CID_CONTRAST, viddev->contrast);
}
if (cnt->conf.saturation && cnt->conf.saturation != viddev->saturation) {
viddev->saturation = cnt->conf.saturation;
v4l2_set_control(vid_source, V4L2_CID_SATURATION, viddev->saturation);
}
if (cnt->conf.hue && cnt->conf.hue != viddev->hue) {
viddev->hue = cnt->conf.hue;
v4l2_set_control(vid_source, V4L2_CID_HUE, viddev->hue);
}
#ifdef V4L2_CID_POWER_LINE_FREQUENCY
/* -1 is don't modify as 0 is an option to disable the power line filter */
if (cnt->conf.power_line_frequency != -1 && cnt->conf.power_line_frequency != viddev->power_line_frequency) {
viddev->power_line_frequency = cnt->conf.power_line_frequency;
v4l2_set_control(vid_source, V4L2_CID_POWER_LINE_FREQUENCY, viddev->power_line_frequency);
}
#endif
if (cnt->conf.autobright) {
if (vid_do_autobright(cnt, viddev)) {
if (v4l2_set_control(vid_source, V4L2_CID_BRIGHTNESS, viddev->brightness))
v4l2_set_control(vid_source, V4L2_CID_GAIN, viddev->brightness);
}
} else {
if (cnt->conf.brightness && cnt->conf.brightness != viddev->brightness) {
viddev->brightness = cnt->conf.brightness;
if (v4l2_set_control(vid_source, V4L2_CID_BRIGHTNESS, viddev->brightness))
v4l2_set_control(vid_source, V4L2_CID_GAIN, viddev->brightness);
}
}
}
/* public functions */
/**
* v4l2_start
*/
unsigned char *v4l2_start(struct context *cnt, struct video_dev *viddev, int width, int height,
int input, int norm, unsigned long freq, int tuner_number)
{
src_v4l2_t *vid_source;
/* Allocate memory for the state structure. */
if (!(vid_source = calloc(sizeof(src_v4l2_t), 1))) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Out of memory.");
goto err;
}
viddev->v4l2_private = vid_source;
vid_source->fd = viddev->fd;
vid_source->fps = cnt->conf.frame_limit;
vid_source->pframe = -1;
vid_source->finish = &cnt->finish;
struct config *conf = &cnt->conf;
if (v4l2_get_capability(vid_source))
goto err;
if (v4l2_select_input(conf, viddev, vid_source, input, norm, freq, tuner_number))
goto err;
if (v4l2_set_pix_format(cnt, vid_source, &width, &height))
goto err;
if (v4l2_scan_controls(vid_source))
goto err;
#if 0
v4l2_set_fps(vid_source);
#endif
if (v4l2_set_mmap(vid_source))
goto err;
viddev->size_map = 0;
viddev->v4l_buffers[0] = NULL;
viddev->v4l_maxbuffer = 1;
viddev->v4l_curbuffer = 0;
viddev->v4l_fmt = VIDEO_PALETTE_YUV420P;
viddev->v4l_bufsize = (width * height * 3) / 2;
/* Update width and height with supported values from camera driver */
viddev->width = width;
viddev->height = height;
return (void *) 1;
err:
if (vid_source)
free(vid_source);
viddev->v4l2_private = NULL;
viddev->v4l2 = 0;
return NULL;
}
/**
* v4l2_set_input
*/
void v4l2_set_input(struct context *cnt, struct video_dev *viddev, unsigned char *map,
int width, int height, struct config *conf)
{
int input = conf->input;
int norm = conf->norm;
unsigned long freq = conf->frequency;
int tuner_number = conf->tuner_number;
if (input != viddev->input || width != viddev->width || height != viddev->height ||
freq != viddev->freq || tuner_number != viddev->tuner_number || norm != viddev->norm) {
unsigned int i;
struct timeval switchTime;
unsigned int skip = conf->roundrobin_skip;
if (conf->roundrobin_skip < 0)
skip = 1;
v4l2_select_input(conf, viddev, (src_v4l2_t *) viddev->v4l2_private,
input, norm, freq, tuner_number);
gettimeofday(&switchTime, NULL);
v4l2_picture_controls(cnt, viddev);
viddev->width = width;
viddev->height = height;
/*
viddev->input = input;
viddev->norm = norm;
viddev->width = width;
viddev->height = height;
viddev->freq = freq;
viddev->tuner_number = tuner_number;
*/
/* Skip all frames captured before switchtime, capture 1 after switchtime */
{
src_v4l2_t *vid_source = (src_v4l2_t *) viddev->v4l2_private;
unsigned int counter = 0;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: set_input_skip_frame "
"switch_time=%ld:%ld", switchTime.tv_sec, switchTime.tv_usec);
/* Avoid hang using the number of mmap buffers */
while(counter < vid_source->req.count) {
counter++;
if (v4l2_next(cnt, viddev, map, width, height))
break;
if (vid_source->buf.timestamp.tv_sec > switchTime.tv_sec ||
(vid_source->buf.timestamp.tv_sec == switchTime.tv_sec &&
vid_source->buf.timestamp.tv_usec > switchTime.tv_usec))
break;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: got frame before "
" switch timestamp=%ld:%ld",
vid_source->buf.timestamp.tv_sec,
vid_source->buf.timestamp.tv_usec);
}
}
/* skip a few frames if needed */
for (i = 1; i < skip; i++)
v4l2_next(cnt, viddev, map, width, height);
} else {
/* No round robin - we only adjust picture controls */
v4l2_picture_controls(cnt, viddev);
}
}
/**
* v4l2_next
*/
int v4l2_next(struct context *cnt, struct video_dev *viddev, unsigned char *map,
int width, int height)
{
sigset_t set, old;
src_v4l2_t *vid_source = (src_v4l2_t *) viddev->v4l2_private;
if (viddev->v4l_fmt != VIDEO_PALETTE_YUV420P)
return V4L_FATAL_ERROR;
/* Block signals during IOCTL */
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigaddset(&set, SIGALRM);
sigaddset(&set, SIGUSR1);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGHUP);
pthread_sigmask(SIG_BLOCK, &set, &old);
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "%s: 1) vid_source->pframe %i",
vid_source->pframe);
if (vid_source->pframe >= 0) {
if (xioctl(vid_source, VIDIOC_QBUF, &vid_source->buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: VIDIOC_QBUF");
pthread_sigmask(SIG_UNBLOCK, &old, NULL);
return -1;
}
}
memset(&vid_source->buf, 0, sizeof(struct v4l2_buffer));
vid_source->buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->buf.memory = V4L2_MEMORY_MMAP;
if (xioctl(vid_source, VIDIOC_DQBUF, &vid_source->buf) == -1) {
int ret;
/*