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authorKoen Kooi <koen@dominion.thruhere.net>2012-06-22 11:28:27 +0000
committerKoen Kooi <koen@dominion.thruhere.net>2012-06-25 09:07:25 +0200
commitc26f69aab1abb7eeea2c9240feb16506e7200320 (patch)
treeafaefedf42d4ee94ff971d156f758856a516ea60 /meta-oe/recipes-multimedia
parent7e14b17c3725a4baf7558bbe108eb41f0a5f3f67 (diff)
downloadmeta-openembedded-c26f69aab1abb7eeea2c9240feb16506e7200320.tar.gz
yavta: add patch to enable streaming to stdout
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Diffstat (limited to 'meta-oe/recipes-multimedia')
-rw-r--r--meta-oe/recipes-multimedia/v4l2apps/yavta/0001-Add-stdout-mode-to-allow-streaming-over-the-network-.patch854
-rw-r--r--meta-oe/recipes-multimedia/v4l2apps/yavta_git.bb5
2 files changed, 857 insertions, 2 deletions
diff --git a/meta-oe/recipes-multimedia/v4l2apps/yavta/0001-Add-stdout-mode-to-allow-streaming-over-the-network-.patch b/meta-oe/recipes-multimedia/v4l2apps/yavta/0001-Add-stdout-mode-to-allow-streaming-over-the-network-.patch
new file mode 100644
index 0000000000..430836fee1
--- /dev/null
+++ b/meta-oe/recipes-multimedia/v4l2apps/yavta/0001-Add-stdout-mode-to-allow-streaming-over-the-network-.patch
@@ -0,0 +1,854 @@
1From 1146a0f01fc8730d5633b46b85d00154a721abbe Mon Sep 17 00:00:00 2001
2From: Koen Kooi <koen@dominion.thruhere.net>
3Date: Fri, 22 Jun 2012 12:40:23 +0200
4Subject: [PATCH] Add stdout mode to allow streaming over the network with nc
5
6Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
7---
8 yavta.c | 288 ++++++++++++++++++++++++++++++++++-----------------------------
9 1 file changed, 157 insertions(+), 131 deletions(-)
10
11diff --git a/yavta.c b/yavta.c
12index f3deae0..8020209 100644
13--- a/yavta.c
14+++ b/yavta.c
15@@ -188,12 +188,12 @@ static int video_open(struct device *dev, const char *devname, int no_query)
16
17 dev->fd = open(devname, O_RDWR);
18 if (dev->fd < 0) {
19- printf("Error opening device %s: %s (%d).\n", devname,
20+ fprintf(stderr, "Error opening device %s: %s (%d).\n", devname,
21 strerror(errno), errno);
22 return dev->fd;
23 }
24
25- printf("Device %s opened.\n", devname);
26+ fprintf(stderr, "Device %s opened.\n", devname);
27
28 if (no_query) {
29 /* Assume capture device. */
30@@ -211,13 +211,13 @@ static int video_open(struct device *dev, const char *devname, int no_query)
31 else if (cap.capabilities & V4L2_CAP_VIDEO_OUTPUT)
32 dev->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
33 else {
34- printf("Error opening device %s: neither video capture "
35+ fprintf(stderr, "Error opening device %s: neither video capture "
36 "nor video output supported.\n", devname);
37 close(dev->fd);
38 return -EINVAL;
39 }
40
41- printf("Device `%s' on `%s' is a video %s device.\n",
42+ fprintf(stderr, "Device `%s' on `%s' is a video %s device.\n",
43 cap.card, cap.bus_info,
44 dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ? "capture" : "output");
45 return 0;
46@@ -280,7 +280,7 @@ static int get_control(struct device *dev, unsigned int id, int type,
47 }
48 }
49
50- printf("unable to get control 0x%8.8x: %s (%d).\n",
51+ fprintf(stderr, "unable to get control 0x%8.8x: %s (%d).\n",
52 id, strerror(errno), errno);
53 return -1;
54 }
55@@ -322,12 +322,12 @@ static void set_control(struct device *dev, unsigned int id, int type,
56 val = old.value;
57 }
58 if (ret == -1) {
59- printf("unable to set control 0x%8.8x: %s (%d).\n",
60+ fprintf(stderr, "unable to set control 0x%8.8x: %s (%d).\n",
61 id, strerror(errno), errno);
62 return;
63 }
64
65- printf("Control 0x%08x set to %" PRId64 ", is %" PRId64 "\n",
66+ fprintf(stderr, "Control 0x%08x set to %" PRId64 ", is %" PRId64 "\n",
67 id, old_val, val);
68 }
69
70@@ -341,7 +341,7 @@ static int video_get_format(struct device *dev)
71
72 ret = ioctl(dev->fd, VIDIOC_G_FMT, &fmt);
73 if (ret < 0) {
74- printf("Unable to get format: %s (%d).\n", strerror(errno),
75+ fprintf(stderr, "Unable to get format: %s (%d).\n", strerror(errno),
76 errno);
77 return ret;
78 }
79@@ -351,7 +351,7 @@ static int video_get_format(struct device *dev)
80 dev->bytesperline = fmt.fmt.pix.bytesperline;
81 dev->imagesize = fmt.fmt.pix.bytesperline ? fmt.fmt.pix.sizeimage : 0;
82
83- printf("Video format: %s (%08x) %ux%u (stride %u) buffer size %u\n",
84+ fprintf(stderr, "Video format: %s (%08x) %ux%u (stride %u) buffer size %u\n",
85 v4l2_format_name(fmt.fmt.pix.pixelformat), fmt.fmt.pix.pixelformat,
86 fmt.fmt.pix.width, fmt.fmt.pix.height, fmt.fmt.pix.bytesperline,
87 fmt.fmt.pix.sizeimage);
88@@ -374,12 +374,12 @@ static int video_set_format(struct device *dev, unsigned int w, unsigned int h,
89
90 ret = ioctl(dev->fd, VIDIOC_S_FMT, &fmt);
91 if (ret < 0) {
92- printf("Unable to set format: %s (%d).\n", strerror(errno),
93+ fprintf(stderr, "Unable to set format: %s (%d).\n", strerror(errno),
94 errno);
95 return ret;
96 }
97
98- printf("Video format set: %s (%08x) %ux%u (stride %u) buffer size %u\n",
99+ fprintf(stderr, "Video format set: %s (%08x) %ux%u (stride %u) buffer size %u\n",
100 v4l2_format_name(fmt.fmt.pix.pixelformat), fmt.fmt.pix.pixelformat,
101 fmt.fmt.pix.width, fmt.fmt.pix.height, fmt.fmt.pix.bytesperline,
102 fmt.fmt.pix.sizeimage);
103@@ -396,16 +396,16 @@ static int video_set_framerate(struct device *dev, struct v4l2_fract *time_per_f
104
105 ret = ioctl(dev->fd, VIDIOC_G_PARM, &parm);
106 if (ret < 0) {
107- printf("Unable to get frame rate: %s (%d).\n",
108+ fprintf(stderr, "Unable to get frame rate: %s (%d).\n",
109 strerror(errno), errno);
110 return ret;
111 }
112
113- printf("Current frame rate: %u/%u\n",
114+ fprintf(stderr, "Current frame rate: %u/%u\n",
115 parm.parm.capture.timeperframe.numerator,
116 parm.parm.capture.timeperframe.denominator);
117
118- printf("Setting frame rate to: %u/%u\n",
119+ fprintf(stderr, "Setting frame rate to: %u/%u\n",
120 time_per_frame->numerator,
121 time_per_frame->denominator);
122
123@@ -414,19 +414,19 @@ static int video_set_framerate(struct device *dev, struct v4l2_fract *time_per_f
124
125 ret = ioctl(dev->fd, VIDIOC_S_PARM, &parm);
126 if (ret < 0) {
127- printf("Unable to set frame rate: %s (%d).\n", strerror(errno),
128+ fprintf(stderr, "Unable to set frame rate: %s (%d).\n", strerror(errno),
129 errno);
130 return ret;
131 }
132
133 ret = ioctl(dev->fd, VIDIOC_G_PARM, &parm);
134 if (ret < 0) {
135- printf("Unable to get frame rate: %s (%d).\n", strerror(errno),
136+ fprintf(stderr, "Unable to get frame rate: %s (%d).\n", strerror(errno),
137 errno);
138 return ret;
139 }
140
141- printf("Frame rate set: %u/%u\n",
142+ fprintf(stderr, "Frame rate set: %u/%u\n",
143 parm.parm.capture.timeperframe.numerator,
144 parm.parm.capture.timeperframe.denominator);
145 return 0;
146@@ -449,12 +449,12 @@ static int video_alloc_buffers(struct device *dev, int nbufs,
147
148 ret = ioctl(dev->fd, VIDIOC_REQBUFS, &rb);
149 if (ret < 0) {
150- printf("Unable to request buffers: %s (%d).\n", strerror(errno),
151+ fprintf(stderr, "Unable to request buffers: %s (%d).\n", strerror(errno),
152 errno);
153 return ret;
154 }
155
156- printf("%u buffers requested.\n", rb.count);
157+ fprintf(stderr, "%u buffers requested.\n", rb.count);
158
159 buffers = malloc(rb.count * sizeof buffers[0]);
160 if (buffers == NULL)
161@@ -470,35 +470,35 @@ static int video_alloc_buffers(struct device *dev, int nbufs,
162 buf.memory = dev->memtype;
163 ret = ioctl(dev->fd, VIDIOC_QUERYBUF, &buf);
164 if (ret < 0) {
165- printf("Unable to query buffer %u: %s (%d).\n", i,
166+ fprintf(stderr, "Unable to query buffer %u: %s (%d).\n", i,
167 strerror(errno), errno);
168 return ret;
169 }
170- printf("length: %u offset: %u\n", buf.length, buf.m.offset);
171+ fprintf(stderr, "length: %u offset: %u\n", buf.length, buf.m.offset);
172
173 switch (dev->memtype) {
174 case V4L2_MEMORY_MMAP:
175 buffers[i].mem = mmap(0, buf.length, PROT_READ | PROT_WRITE, MAP_SHARED, dev->fd, buf.m.offset);
176 if (buffers[i].mem == MAP_FAILED) {
177- printf("Unable to map buffer %u: %s (%d)\n", i,
178+ fprintf(stderr, "Unable to map buffer %u: %s (%d)\n", i,
179 strerror(errno), errno);
180 return ret;
181 }
182 buffers[i].size = buf.length;
183 buffers[i].padding = 0;
184- printf("Buffer %u mapped at address %p.\n", i, buffers[i].mem);
185+ fprintf(stderr, "Buffer %u mapped at address %p.\n", i, buffers[i].mem);
186 break;
187
188 case V4L2_MEMORY_USERPTR:
189 ret = posix_memalign(&buffers[i].mem, page_size, buf.length + offset + padding);
190 if (ret < 0) {
191- printf("Unable to allocate buffer %u (%d)\n", i, ret);
192+ fprintf(stderr, "Unable to allocate buffer %u (%d)\n", i, ret);
193 return -ENOMEM;
194 }
195 buffers[i].mem += offset;
196 buffers[i].size = buf.length;
197 buffers[i].padding = padding;
198- printf("Buffer %u allocated at address %p.\n", i, buffers[i].mem);
199+ fprintf(stderr, "Buffer %u allocated at address %p.\n", i, buffers[i].mem);
200 break;
201
202 default:
203@@ -525,7 +525,7 @@ static int video_free_buffers(struct device *dev)
204 case V4L2_MEMORY_MMAP:
205 ret = munmap(dev->buffers[i].mem, dev->buffers[i].size);
206 if (ret < 0) {
207- printf("Unable to unmap buffer %u: %s (%d)\n", i,
208+ fprintf(stderr, "Unable to unmap buffer %u: %s (%d)\n", i,
209 strerror(errno), errno);
210 return ret;
211 }
212@@ -549,12 +549,12 @@ static int video_free_buffers(struct device *dev)
213
214 ret = ioctl(dev->fd, VIDIOC_REQBUFS, &rb);
215 if (ret < 0) {
216- printf("Unable to release buffers: %s (%d).\n",
217+ fprintf(stderr, "Unable to release buffers: %s (%d).\n",
218 strerror(errno), errno);
219 return ret;
220 }
221
222- printf("%u buffers released.\n", dev->nbufs);
223+ fprintf(stderr, "%u buffers released.\n", dev->nbufs);
224
225 free(dev->buffers);
226 dev->nbufs = 0;
227@@ -589,7 +589,7 @@ static int video_queue_buffer(struct device *dev, int index, enum buffer_fill_mo
228
229 ret = ioctl(dev->fd, VIDIOC_QBUF, &buf);
230 if (ret < 0)
231- printf("Unable to queue buffer: %s (%d).\n",
232+ fprintf(stderr, "Unable to queue buffer: %s (%d).\n",
233 strerror(errno), errno);
234
235 return ret;
236@@ -602,7 +602,7 @@ static int video_enable(struct device *dev, int enable)
237
238 ret = ioctl(dev->fd, enable ? VIDIOC_STREAMON : VIDIOC_STREAMOFF, &type);
239 if (ret < 0) {
240- printf("Unable to %s streaming: %s (%d).\n",
241+ fprintf(stderr, "Unable to %s streaming: %s (%d).\n",
242 enable ? "start" : "stop", strerror(errno), errno);
243 return ret;
244 }
245@@ -623,9 +623,9 @@ static void video_query_menu(struct device *dev, struct v4l2_queryctrl *query)
246 continue;
247
248 if (query->type == V4L2_CTRL_TYPE_MENU)
249- printf(" %u: %.32s\n", menu.index, menu.name);
250+ fprintf(stderr, " %u: %.32s\n", menu.index, menu.name);
251 else
252- printf(" %u: %lld\n", menu.index, menu.value);
253+ fprintf(stderr, " %u: %lld\n", menu.index, menu.value);
254 };
255 }
256
257@@ -655,7 +655,7 @@ static void video_list_controls(struct device *dev)
258 continue;
259
260 if (query.type == V4L2_CTRL_TYPE_CTRL_CLASS) {
261- printf("--- %s (class 0x%08x) ---\n", query.name, query.id);
262+ fprintf(stderr, "--- %s (class 0x%08x) ---\n", query.name, query.id);
263 continue;
264 }
265
266@@ -665,7 +665,7 @@ static void video_list_controls(struct device *dev)
267 else
268 sprintf(value, "%" PRId64, val64);
269
270- printf("control 0x%08x `%s' min %d max %d step %d default %d current %s.\n",
271+ fprintf(stderr, "control 0x%08x `%s' min %d max %d step %d default %d current %s.\n",
272 query.id, query.name, query.minimum, query.maximum,
273 query.step, query.default_value, value);
274
275@@ -677,9 +677,9 @@ static void video_list_controls(struct device *dev)
276 }
277
278 if (nctrls)
279- printf("%u control%s found.\n", nctrls, nctrls > 1 ? "s" : "");
280+ fprintf(stderr, "%u control%s found.\n", nctrls, nctrls > 1 ? "s" : "");
281 else
282- printf("No control found.\n");
283+ fprintf(stderr, "No control found.\n");
284 }
285
286 static void video_enum_frame_intervals(struct device *dev, __u32 pixelformat,
287@@ -700,30 +700,30 @@ static void video_enum_frame_intervals(struct device *dev, __u32 pixelformat,
288 break;
289
290 if (i != ival.index)
291- printf("Warning: driver returned wrong ival index "
292+ fprintf(stderr, "Warning: driver returned wrong ival index "
293 "%u.\n", ival.index);
294 if (pixelformat != ival.pixel_format)
295- printf("Warning: driver returned wrong ival pixel "
296+ fprintf(stderr, "Warning: driver returned wrong ival pixel "
297 "format %08x.\n", ival.pixel_format);
298 if (width != ival.width)
299- printf("Warning: driver returned wrong ival width "
300+ fprintf(stderr, "Warning: driver returned wrong ival width "
301 "%u.\n", ival.width);
302 if (height != ival.height)
303- printf("Warning: driver returned wrong ival height "
304+ fprintf(stderr, "Warning: driver returned wrong ival height "
305 "%u.\n", ival.height);
306
307 if (i != 0)
308- printf(", ");
309+ fprintf(stderr, ", ");
310
311 switch (ival.type) {
312 case V4L2_FRMIVAL_TYPE_DISCRETE:
313- printf("%u/%u",
314+ fprintf(stderr, "%u/%u",
315 ival.discrete.numerator,
316 ival.discrete.denominator);
317 break;
318
319 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
320- printf("%u/%u - %u/%u",
321+ fprintf(stderr, "%u/%u - %u/%u",
322 ival.stepwise.min.numerator,
323 ival.stepwise.min.denominator,
324 ival.stepwise.max.numerator,
325@@ -731,7 +731,7 @@ static void video_enum_frame_intervals(struct device *dev, __u32 pixelformat,
326 return;
327
328 case V4L2_FRMIVAL_TYPE_STEPWISE:
329- printf("%u/%u - %u/%u (by %u/%u)",
330+ fprintf(stderr, "%u/%u - %u/%u (by %u/%u)",
331 ival.stepwise.min.numerator,
332 ival.stepwise.min.denominator,
333 ival.stepwise.max.numerator,
334@@ -761,23 +761,23 @@ static void video_enum_frame_sizes(struct device *dev, __u32 pixelformat)
335 break;
336
337 if (i != frame.index)
338- printf("Warning: driver returned wrong frame index "
339+ fprintf(stderr, "Warning: driver returned wrong frame index "
340 "%u.\n", frame.index);
341 if (pixelformat != frame.pixel_format)
342- printf("Warning: driver returned wrong frame pixel "
343+ fprintf(stderr, "Warning: driver returned wrong frame pixel "
344 "format %08x.\n", frame.pixel_format);
345
346 switch (frame.type) {
347 case V4L2_FRMSIZE_TYPE_DISCRETE:
348- printf("\tFrame size: %ux%u (", frame.discrete.width,
349+ fprintf(stderr, "\tFrame size: %ux%u (", frame.discrete.width,
350 frame.discrete.height);
351 video_enum_frame_intervals(dev, frame.pixel_format,
352 frame.discrete.width, frame.discrete.height);
353- printf(")\n");
354+ fprintf(stderr, ")\n");
355 break;
356
357 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
358- printf("\tFrame size: %ux%u - %ux%u (",
359+ fprintf(stderr, "\tFrame size: %ux%u - %ux%u (",
360 frame.stepwise.min_width,
361 frame.stepwise.min_height,
362 frame.stepwise.max_width,
363@@ -785,11 +785,11 @@ static void video_enum_frame_sizes(struct device *dev, __u32 pixelformat)
364 video_enum_frame_intervals(dev, frame.pixel_format,
365 frame.stepwise.max_width,
366 frame.stepwise.max_height);
367- printf(")\n");
368+ fprintf(stderr, ")\n");
369 break;
370
371 case V4L2_FRMSIZE_TYPE_STEPWISE:
372- printf("\tFrame size: %ux%u - %ux%u (by %ux%u) (\n",
373+ fprintf(stderr, "\tFrame size: %ux%u - %ux%u (by %ux%u) (\n",
374 frame.stepwise.min_width,
375 frame.stepwise.min_height,
376 frame.stepwise.max_width,
377@@ -799,7 +799,7 @@ static void video_enum_frame_sizes(struct device *dev, __u32 pixelformat)
378 video_enum_frame_intervals(dev, frame.pixel_format,
379 frame.stepwise.max_width,
380 frame.stepwise.max_height);
381- printf(")\n");
382+ fprintf(stderr, ")\n");
383 break;
384
385 default:
386@@ -823,19 +823,19 @@ static void video_enum_formats(struct device *dev, enum v4l2_buf_type type)
387 break;
388
389 if (i != fmt.index)
390- printf("Warning: driver returned wrong format index "
391+ fprintf(stderr, "Warning: driver returned wrong format index "
392 "%u.\n", fmt.index);
393 if (type != fmt.type)
394- printf("Warning: driver returned wrong format type "
395+ fprintf(stderr, "Warning: driver returned wrong format type "
396 "%u.\n", fmt.type);
397
398- printf("\tFormat %u: %s (%08x)\n", i,
399+ fprintf(stderr, "\tFormat %u: %s (%08x)\n", i,
400 v4l2_format_name(fmt.pixelformat), fmt.pixelformat);
401- printf("\tType: %s (%u)\n", v4l2_buf_type_name(fmt.type),
402+ fprintf(stderr, "\tType: %s (%u)\n", v4l2_buf_type_name(fmt.type),
403 fmt.type);
404- printf("\tName: %.32s\n", fmt.description);
405+ fprintf(stderr, "\tName: %.32s\n", fmt.description);
406 video_enum_frame_sizes(dev, fmt.pixelformat);
407- printf("\n");
408+ fprintf(stderr, "\n");
409 }
410 }
411
412@@ -853,13 +853,13 @@ static void video_enum_inputs(struct device *dev)
413 break;
414
415 if (i != input.index)
416- printf("Warning: driver returned wrong input index "
417+ fprintf(stderr, "Warning: driver returned wrong input index "
418 "%u.\n", input.index);
419
420- printf("\tInput %u: %s.\n", i, input.name);
421+ fprintf(stderr, "\tInput %u: %s.\n", i, input.name);
422 }
423
424- printf("\n");
425+ fprintf(stderr, "\n");
426 }
427
428 static int video_get_input(struct device *dev)
429@@ -869,7 +869,7 @@ static int video_get_input(struct device *dev)
430
431 ret = ioctl(dev->fd, VIDIOC_G_INPUT, &input);
432 if (ret < 0) {
433- printf("Unable to get current input: %s (%d).\n",
434+ fprintf(stderr, "Unable to get current input: %s (%d).\n",
435 strerror(errno), errno);
436 return ret;
437 }
438@@ -884,7 +884,7 @@ static int video_set_input(struct device *dev, unsigned int input)
439
440 ret = ioctl(dev->fd, VIDIOC_S_INPUT, &_input);
441 if (ret < 0)
442- printf("Unable to select input %u: %s (%d).\n", input,
443+ fprintf(stderr, "Unable to select input %u: %s (%d).\n", input,
444 strerror(errno), errno);
445
446 return ret;
447@@ -903,14 +903,14 @@ static int video_set_quality(struct device *dev, unsigned int quality)
448
449 ret = ioctl(dev->fd, VIDIOC_S_JPEGCOMP, &jpeg);
450 if (ret < 0) {
451- printf("Unable to set quality to %u: %s (%d).\n", quality,
452+ fprintf(stderr, "Unable to set quality to %u: %s (%d).\n", quality,
453 strerror(errno), errno);
454 return ret;
455 }
456
457 ret = ioctl(dev->fd, VIDIOC_G_JPEGCOMP, &jpeg);
458 if (ret >= 0)
459- printf("Quality set to %u\n", jpeg.quality);
460+ fprintf(stderr, "Quality set to %u\n", jpeg.quality);
461
462 return 0;
463 }
464@@ -930,7 +930,7 @@ static int video_load_test_pattern(struct device *dev, const char *filename)
465
466 if (filename == NULL) {
467 if (dev->bytesperline == 0) {
468- printf("Compressed format detect and no test pattern filename given.\n"
469+ fprintf(stderr, "Compressed format detect and no test pattern filename given.\n"
470 "The test pattern can't be generated automatically.\n");
471 return -EINVAL;
472 }
473@@ -947,7 +947,7 @@ static int video_load_test_pattern(struct device *dev, const char *filename)
474
475 fd = open(filename, O_RDONLY);
476 if (fd == -1) {
477- printf("Unable to open test pattern file '%s': %s (%d).\n",
478+ fprintf(stderr, "Unable to open test pattern file '%s': %s (%d).\n",
479 filename, strerror(errno), errno);
480 return -errno;
481 }
482@@ -956,7 +956,7 @@ static int video_load_test_pattern(struct device *dev, const char *filename)
483 close(fd);
484
485 if (ret != (int)size && dev->bytesperline != 0) {
486- printf("Test pattern file size %u doesn't match image size %u\n",
487+ fprintf(stderr, "Test pattern file size %u doesn't match image size %u\n",
488 ret, size);
489 return -EINVAL;
490 }
491@@ -1012,16 +1012,16 @@ static void video_verify_buffer(struct device *dev, int index)
492 }
493
494 if (errors) {
495- printf("Warning: %u bytes overwritten among %u first padding bytes\n",
496+ fprintf(stderr, "Warning: %u bytes overwritten among %u first padding bytes\n",
497 errors, dirty);
498
499 dirty = (dirty + 15) & ~15;
500 dirty = dirty > 32 ? 32 : dirty;
501
502 for (i = 0; i < dirty; ++i) {
503- printf("%02x ", data[i]);
504+ fprintf(stderr, "%02x ", data[i]);
505 if (i % 16 == 15)
506- printf("\n");
507+ fprintf(stderr, "\n");
508 }
509 }
510 }
511@@ -1061,15 +1061,29 @@ static void video_save_image(struct device *dev, struct v4l2_buffer *buf,
512 close(fd);
513
514 if (ret < 0)
515- printf("write error: %s (%d)\n", strerror(errno), errno);
516+ fprintf(stderr, "write error: %s (%d)\n", strerror(errno), errno);
517 else if (ret != (int)buf->bytesused)
518- printf("write error: only %d bytes written instead of %u\n",
519+ fprintf(stderr, "write error: only %d bytes written instead of %u\n",
520+ ret, buf->bytesused);
521+}
522+
523+static void video_stdout_image(struct device *dev, struct v4l2_buffer *buf)
524+{
525+ int ret;
526+
527+ fprintf(stderr, "stdout");
528+ ret = fwrite(dev->buffers[buf->index].mem, buf->bytesused, 1, stdout);
529+
530+ if (ret < 0)
531+ fprintf(stderr, "write error: %s (%d)\n", strerror(errno), errno);
532+ else if (ret != (int)buf->bytesused)
533+ fprintf(stderr, "write error: only %d bytes written instead of %u\n",
534 ret, buf->bytesused);
535 }
536
537 static int video_do_capture(struct device *dev, unsigned int nframes,
538 unsigned int skip, unsigned int delay, const char *pattern,
539- int do_requeue_last, enum buffer_fill_mode fill)
540+ int do_requeue_last, enum buffer_fill_mode fill, int do_stdout)
541 {
542 struct timespec start;
543 struct timeval last;
544@@ -1099,7 +1113,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
545 ret = ioctl(dev->fd, VIDIOC_DQBUF, &buf);
546 if (ret < 0) {
547 if (errno != EIO) {
548- printf("Unable to dequeue buffer: %s (%d).\n",
549+ fprintf(stderr, "Unable to dequeue buffer: %s (%d).\n",
550 strerror(errno), errno);
551 goto done;
552 }
553@@ -1111,7 +1125,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
554
555 if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
556 dev->imagesize != 0 && buf.bytesused != dev->imagesize)
557- printf("Warning: bytes used %u != image size %u\n",
558+ fprintf(stderr, "Warning: bytes used %u != image size %u\n",
559 buf.bytesused, dev->imagesize);
560
561 if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
562@@ -1124,7 +1138,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
563 fps = fps ? 1000000.0 / fps : 0.0;
564
565 clock_gettime(CLOCK_MONOTONIC, &ts);
566- printf("%u (%u) [%c] %u %u bytes %ld.%06ld %ld.%06ld %.3f fps\n", i, buf.index,
567+ fprintf(stderr, "%u (%u) [%c] %u %u bytes %ld.%06ld %ld.%06ld %.3f fps\n", i, buf.index,
568 (buf.flags & V4L2_BUF_FLAG_ERROR) ? 'E' : '-',
569 buf.sequence, buf.bytesused, buf.timestamp.tv_sec,
570 buf.timestamp.tv_usec, ts.tv_sec, ts.tv_nsec/1000, fps);
571@@ -1132,8 +1146,13 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
572 last = buf.timestamp;
573
574 /* Save the image. */
575- if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pattern && !skip)
576+ if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pattern && !skip) {
577 video_save_image(dev, &buf, pattern, i);
578+ }
579+
580+ if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && do_stdout && !skip) {
581+ video_stdout_image(dev, &buf);
582+ }
583
584 if (skip)
585 --skip;
586@@ -1149,7 +1168,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
587
588 ret = video_queue_buffer(dev, buf.index, fill);
589 if (ret < 0) {
590- printf("Unable to requeue buffer: %s (%d).\n",
591+ fprintf(stderr, "Unable to requeue buffer: %s (%d).\n",
592 strerror(errno), errno);
593 goto done;
594 }
595@@ -1159,7 +1178,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
596 video_enable(dev, 0);
597
598 if (nframes == 0) {
599- printf("No frames captured.\n");
600+ fprintf(stderr, "No frames captured.\n");
601 goto done;
602 }
603
604@@ -1176,7 +1195,7 @@ static int video_do_capture(struct device *dev, unsigned int nframes,
605 bps = size/(ts.tv_nsec/1000.0+1000000.0*ts.tv_sec)*1000000.0;
606 fps = i/(ts.tv_nsec/1000.0+1000000.0*ts.tv_sec)*1000000.0;
607
608- printf("Captured %u frames in %lu.%06lu seconds (%f fps, %f B/s).\n",
609+ fprintf(stderr, "Captured %u frames in %lu.%06lu seconds (%f fps, %f B/s).\n",
610 i, ts.tv_sec, ts.tv_nsec/1000, fps, bps);
611
612 done:
613@@ -1188,37 +1207,38 @@ done:
614
615 static void usage(const char *argv0)
616 {
617- printf("Usage: %s [options] device\n", argv0);
618- printf("Supported options:\n");
619- printf("-c, --capture[=nframes] Capture frames\n");
620- printf("-C, --check-overrun Verify dequeued frames for buffer overrun\n");
621- printf("-d, --delay Delay (in ms) before requeuing buffers\n");
622- printf("-f, --format format Set the video format\n");
623- printf("-F, --file[=name] Read/write frames from/to disk\n");
624- printf("\tFor video capture devices, the first '#' character in the file name is\n");
625- printf("\texpanded to the frame sequence number. The default file name is\n");
626- printf("\t'frame-#.bin'.\n");
627- printf("-h, --help Show this help screen\n");
628- printf("-i, --input input Select the video input\n");
629- printf("-I, --fill-frames Fill frames with check pattern before queuing them\n");
630- printf("-l, --list-controls List available controls\n");
631- printf("-n, --nbufs n Set the number of video buffers\n");
632- printf("-p, --pause Pause before starting the video stream\n");
633- printf("-q, --quality n MJPEG quality (0-100)\n");
634- printf("-r, --get-control ctrl Get control 'ctrl'\n");
635- printf("-R, --realtime=[priority] Enable realtime RR scheduling\n");
636- printf("-s, --size WxH Set the frame size\n");
637- printf("-t, --time-per-frame num/denom Set the time per frame (eg. 1/25 = 25 fps)\n");
638- printf("-u, --userptr Use the user pointers streaming method\n");
639- printf("-w, --set-control 'ctrl value' Set control 'ctrl' to 'value'\n");
640- printf(" --enum-formats Enumerate formats\n");
641- printf(" --enum-inputs Enumerate inputs\n");
642- printf(" --no-query Don't query capabilities on open\n");
643- printf(" --offset User pointer buffer offset from page start\n");
644- printf(" --requeue-last Requeue the last buffers before streamoff\n");
645- printf(" --skip n Skip the first n frames\n");
646- printf(" --sleep-forever Sleep forever after configuring the device\n");
647- printf(" --stride value Line stride in bytes\n");
648+ fprintf(stderr, "Usage: %s [options] device\n", argv0);
649+ fprintf(stderr, "Supported options:\n");
650+ fprintf(stderr, "-c, --capture[=nframes] Capture frames\n");
651+ fprintf(stderr, "-C, --check-overrun Verify dequeued frames for buffer overrun\n");
652+ fprintf(stderr, "-d, --delay Delay (in ms) before requeuing buffers\n");
653+ fprintf(stderr, "-f, --format format Set the video format\n");
654+ fprintf(stderr, "-F, --file[=name] Read/write frames from/to disk\n");
655+ fprintf(stderr, "\tFor video capture devices, the first '#' character in the file name is\n");
656+ fprintf(stderr, "\texpanded to the frame sequence number. The default file name is\n");
657+ fprintf(stderr, "\t'frame-#.bin'.\n");
658+ fprintf(stderr, " --stdout write frames to stdout\n");
659+ fprintf(stderr, "-h, --help Show this help screen\n");
660+ fprintf(stderr, "-i, --input input Select the video input\n");
661+ fprintf(stderr, "-I, --fill-frames Fill frames with check pattern before queuing them\n");
662+ fprintf(stderr, "-l, --list-controls List available controls\n");
663+ fprintf(stderr, "-n, --nbufs n Set the number of video buffers\n");
664+ fprintf(stderr, "-p, --pause Pause before starting the video stream\n");
665+ fprintf(stderr, "-q, --quality n MJPEG quality (0-100)\n");
666+ fprintf(stderr, "-r, --get-control ctrl Get control 'ctrl'\n");
667+ fprintf(stderr, "-R, --realtime=[priority] Enable realtime RR scheduling\n");
668+ fprintf(stderr, "-s, --size WxH Set the frame size\n");
669+ fprintf(stderr, "-t, --time-per-frame num/denom Set the time per frame (eg. 1/25 = 25 fps)\n");
670+ fprintf(stderr, "-u, --userptr Use the user pointers streaming method\n");
671+ fprintf(stderr, "-w, --set-control 'ctrl value' Set control 'ctrl' to 'value'\n");
672+ fprintf(stderr, " --enum-formats Enumerate formats\n");
673+ fprintf(stderr, " --enum-inputs Enumerate inputs\n");
674+ fprintf(stderr, " --no-query Don't query capabilities on open\n");
675+ fprintf(stderr, " --offset User pointer buffer offset from page start\n");
676+ fprintf(stderr, " --requeue-last Requeue the last buffers before streamoff\n");
677+ fprintf(stderr, " --skip n Skip the first n frames\n");
678+ fprintf(stderr, " --sleep-forever Sleep forever after configuring the device\n");
679+ fprintf(stderr, " --stride value Line stride in bytes\n");
680 }
681
682 #define OPT_ENUM_FORMATS 256
683@@ -1229,6 +1249,7 @@ static void usage(const char *argv0)
684 #define OPT_USERPTR_OFFSET 261
685 #define OPT_REQUEUE_LAST 262
686 #define OPT_STRIDE 263
687+#define OPT_STDOUT 264
688
689 static struct option opts[] = {
690 {"capture", 2, 0, 'c'},
691@@ -1238,6 +1259,7 @@ static struct option opts[] = {
692 {"enum-inputs", 0, 0, OPT_ENUM_INPUTS},
693 {"file", 2, 0, 'F'},
694 {"fill-frames", 0, 0, 'I'},
695+ {"stdout", 0, 0, OPT_STDOUT},
696 {"format", 1, 0, 'f'},
697 {"help", 0, 0, 'h'},
698 {"input", 1, 0, 'i'},
699@@ -1274,7 +1296,8 @@ int main(int argc, char *argv[])
700 int do_list_controls = 0, do_get_control = 0, do_set_control = 0;
701 int do_sleep_forever = 0, do_requeue_last = 0;
702 int do_rt = 0;
703- int no_query = 0;
704+ int no_query = 0;
705+ int do_stdout = 0;
706 char *endptr;
707 int c;
708
709@@ -1321,7 +1344,7 @@ int main(int argc, char *argv[])
710 do_set_format = 1;
711 pixelformat = v4l2_format_code(optarg);
712 if (pixelformat == 0) {
713- printf("Unsupported video format '%s'\n", optarg);
714+ fprintf(stderr, "Unsupported video format '%s'\n", optarg);
715 return 1;
716 }
717 break;
718@@ -1357,7 +1380,7 @@ int main(int argc, char *argv[])
719 case 'r':
720 ctrl_name = strtol(optarg, &endptr, 0);
721 if (*endptr != 0) {
722- printf("Invalid control name '%s'\n", optarg);
723+ fprintf(stderr, "Invalid control name '%s'\n", optarg);
724 return 1;
725 }
726 do_get_control = 1;
727@@ -1371,12 +1394,12 @@ int main(int argc, char *argv[])
728 do_set_format = 1;
729 width = strtol(optarg, &endptr, 10);
730 if (*endptr != 'x' || endptr == optarg) {
731- printf("Invalid size '%s'\n", optarg);
732+ fprintf(stderr, "Invalid size '%s'\n", optarg);
733 return 1;
734 }
735 height = strtol(endptr + 1, &endptr, 10);
736 if (*endptr != 0) {
737- printf("Invalid size '%s'\n", optarg);
738+ fprintf(stderr, "Invalid size '%s'\n", optarg);
739 return 1;
740 }
741 break;
742@@ -1384,12 +1407,12 @@ int main(int argc, char *argv[])
743 do_set_time_per_frame = 1;
744 time_per_frame.numerator = strtol(optarg, &endptr, 10);
745 if (*endptr != '/' || endptr == optarg) {
746- printf("Invalid time per frame '%s'\n", optarg);
747+ fprintf(stderr, "Invalid time per frame '%s'\n", optarg);
748 return 1;
749 }
750 time_per_frame.denominator = strtol(endptr + 1, &endptr, 10);
751 if (*endptr != 0) {
752- printf("Invalid time per frame '%s'\n", optarg);
753+ fprintf(stderr, "Invalid time per frame '%s'\n", optarg);
754 return 1;
755 }
756 break;
757@@ -1399,12 +1422,12 @@ int main(int argc, char *argv[])
758 case 'w':
759 ctrl_name = strtol(optarg, &endptr, 0);
760 if (*endptr != ' ' || endptr == optarg) {
761- printf("Invalid control name '%s'\n", optarg);
762+ fprintf(stderr, "Invalid control name '%s'\n", optarg);
763 return 1;
764 }
765 ctrl_value = strtol(endptr + 1, &endptr, 0);
766 if (*endptr != 0) {
767- printf("Invalid control value '%s'\n", optarg);
768+ fprintf(stderr, "Invalid control value '%s'\n", optarg);
769 return 1;
770 }
771 do_set_control = 1;
772@@ -1433,15 +1456,18 @@ int main(int argc, char *argv[])
773 case OPT_USERPTR_OFFSET:
774 userptr_offset = atoi(optarg);
775 break;
776+ case OPT_STDOUT:
777+ do_stdout = 1;
778+ break;
779 default:
780- printf("Invalid option -%c\n", c);
781- printf("Run %s -h for help.\n", argv[0]);
782+ fprintf(stderr, "Invalid option -%c\n", c);
783+ fprintf(stderr, "Run %s -h for help.\n", argv[0]);
784 return 1;
785 }
786 }
787
788 if ((fill_mode & BUFFER_FILL_PADDING) && memtype != V4L2_MEMORY_USERPTR) {
789- printf("Buffer overrun can only be checked in USERPTR mode.\n");
790+ fprintf(stderr, "Buffer overrun can only be checked in USERPTR mode.\n");
791 return 1;
792 }
793
794@@ -1470,7 +1496,7 @@ int main(int argc, char *argv[])
795 ret = get_control(&dev, ctrl_name,
796 get_control_type(&dev, ctrl_name), &val);
797 if (ret >= 0)
798- printf("Control 0x%08x value %" PRId64 "\n", ctrl_name, val);
799+ fprintf(stderr, "Control 0x%08x value %" PRId64 "\n", ctrl_name, val);
800 }
801
802 if (do_set_control)
803@@ -1481,21 +1507,21 @@ int main(int argc, char *argv[])
804 video_list_controls(&dev);
805
806 if (do_enum_formats) {
807- printf("- Available formats:\n");
808+ fprintf(stderr, "- Available formats:\n");
809 video_enum_formats(&dev, V4L2_BUF_TYPE_VIDEO_CAPTURE);
810 video_enum_formats(&dev, V4L2_BUF_TYPE_VIDEO_OUTPUT);
811 video_enum_formats(&dev, V4L2_BUF_TYPE_VIDEO_OVERLAY);
812 }
813
814 if (do_enum_inputs) {
815- printf("- Available inputs:\n");
816+ fprintf(stderr, "- Available inputs:\n");
817 video_enum_inputs(&dev);
818 }
819
820 if (do_set_input) {
821 video_set_input(&dev, input);
822 ret = video_get_input(&dev);
823- printf("Input %d selected\n", ret);
824+ fprintf(stderr, "Input %d selected\n", ret);
825 }
826
827 /* Set the video format. */
828@@ -1537,7 +1563,7 @@ int main(int argc, char *argv[])
829 }
830
831 if (do_pause) {
832- printf("Press enter to start capture\n");
833+ fprintf(stderr, "Press enter to start capture\n");
834 getchar();
835 }
836
837@@ -1546,12 +1572,12 @@ int main(int argc, char *argv[])
838 sched.sched_priority = rt_priority;
839 ret = sched_setscheduler(0, SCHED_RR, &sched);
840 if (ret < 0)
841- printf("Failed to select RR scheduler: %s (%d)\n",
842+ fprintf(stderr, "Failed to select RR scheduler: %s (%d)\n",
843 strerror(errno), errno);
844 }
845
846 if (video_do_capture(&dev, nframes, skip, delay, filename,
847- do_requeue_last, fill_mode) < 0) {
848+ do_requeue_last, fill_mode, do_stdout) < 0) {
849 video_close(&dev);
850 return 1;
851 }
852--
8531.7.10
854
diff --git a/meta-oe/recipes-multimedia/v4l2apps/yavta_git.bb b/meta-oe/recipes-multimedia/v4l2apps/yavta_git.bb
index 054912d66a..d007bcb609 100644
--- a/meta-oe/recipes-multimedia/v4l2apps/yavta_git.bb
+++ b/meta-oe/recipes-multimedia/v4l2apps/yavta_git.bb
@@ -2,11 +2,12 @@ DESCRIPTION = "Yet Another V4L2 Test Application"
2LICENSE = "GPLv2" 2LICENSE = "GPLv2"
3LIC_FILES_CHKSUM = "file://COPYING.GPL;md5=751419260aa954499f7abaabaa882bbe" 3LIC_FILES_CHKSUM = "file://COPYING.GPL;md5=751419260aa954499f7abaabaa882bbe"
4 4
5SRC_URI = "git://git.ideasonboard.org/yavta.git;protocol=git" 5SRC_URI = "git://git.ideasonboard.org/yavta.git;protocol=git \
6 file://0001-Add-stdout-mode-to-allow-streaming-over-the-network-.patch"
6SRCREV = "82ff2efdb9787737b9f21b6f4759f077c827b238" 7SRCREV = "82ff2efdb9787737b9f21b6f4759f077c827b238"
7 8
8PV = "0.0" 9PV = "0.0"
9PR = "r1" 10PR = "r2"
10S = "${WORKDIR}/git" 11S = "${WORKDIR}/git"
11 12
12do_install() { 13do_install() {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2026-07-21 11:20:53 +0000