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failed if dv timings are not available

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This commit is contained in:
Maxim Devaev
2024-03-03 20:04:47 +02:00
parent 299b3886af
commit 6827a72097
1 changed files with 52 additions and 58 deletions
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60
src/libs/device.c
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@@ -87,7 +87,6 @@ static void _v4l2_buffer_copy(const struct v4l2_buffer *src, struct v4l2_buffer
static bool _device_is_buffer_valid(us_device_s *dev, const struct v4l2_buffer *buf, const u8 *data); static bool _device_is_buffer_valid(us_device_s *dev, const struct v4l2_buffer *buf, const u8 *data);
static int _device_open_check_cap(us_device_s *dev); static int _device_open_check_cap(us_device_s *dev);
static int _device_open_dv_timings(us_device_s *dev); static int _device_open_dv_timings(us_device_s *dev);
static int _device_apply_dv_timings(us_device_s *dev);
static int _device_open_format(us_device_s *dev, bool first); static int _device_open_format(us_device_s *dev, bool first);
static void _device_open_hw_fps(us_device_s *dev); static void _device_open_hw_fps(us_device_s *dev);
static void _device_open_jpeg_quality(us_device_s *dev); static void _device_open_jpeg_quality(us_device_s *dev);
@@ -185,7 +184,10 @@ int us_device_open(us_device_s *dev) {
if (_device_open_check_cap(dev) < 0) { if (_device_open_check_cap(dev) < 0) {
goto error; goto error;
} }
if (_device_open_dv_timings(dev) < 0) { if (_device_apply_resolution(dev, dev->width, dev->height, dev->run->hz)) {
goto error;
}
if (dev->dv_timings && _device_open_dv_timings(dev) < 0) {
goto error; goto error;
} }
if (_device_open_format(dev, true) < 0) { if (_device_open_format(dev, true) < 0) {
@@ -585,31 +587,14 @@ static int _device_open_check_cap(us_device_s *dev) {
} }
static int _device_open_dv_timings(us_device_s *dev) { static int _device_open_dv_timings(us_device_s *dev) {
_device_apply_resolution(dev, dev->width, dev->height, dev->run->hz); const us_device_runtime_s *const run = dev->run;
if (dev->dv_timings) {
_D_LOG_DEBUG("Using DV-timings");
if (_device_apply_dv_timings(dev) < 0) {
return -1;
}
struct v4l2_event_subscription sub = {.type = V4L2_EVENT_SOURCE_CHANGE};
_D_LOG_DEBUG("Subscribing to DV-timings events ...")
if (us_xioctl(dev->run->fd, VIDIOC_SUBSCRIBE_EVENT, &sub) < 0) {
_D_LOG_PERROR("Can't subscribe to DV-timings events");
return -1;
}
}
return 0;
}
static int _device_apply_dv_timings(us_device_s *dev) {
us_device_runtime_s *const run = dev->run; // cppcheck-suppress constVariablePointer
struct v4l2_dv_timings dv = {0}; struct v4l2_dv_timings dv = {0};
_D_LOG_DEBUG("Querying DV-timings ...");
if (us_xioctl(run->fd, VIDIOC_QUERY_DV_TIMINGS, &dv) < 0) {
goto querystd;
}
_D_LOG_DEBUG("Calling us_xioctl(VIDIOC_QUERY_DV_TIMINGS) ...");
if (us_xioctl(run->fd, VIDIOC_QUERY_DV_TIMINGS, &dv) == 0) {
float hz = 0; float hz = 0;
if (dv.type == V4L2_DV_BT_656_1120) { if (dv.type == V4L2_DV_BT_656_1120) {
// See v4l2_print_dv_timings() in the kernel // See v4l2_print_dv_timings() in the kernel
@@ -626,25 +611,34 @@ static int _device_apply_dv_timings(us_device_s *dev) {
(ull)dv.bt.pixelclock, dv.bt.vsync, dv.bt.hsync); (ull)dv.bt.pixelclock, dv.bt.vsync, dv.bt.hsync);
} }
_D_LOG_DEBUG("Calling us_xioctl(VIDIOC_S_DV_TIMINGS) ..."); _D_LOG_DEBUG("Applying DV-timings ...");
if (us_xioctl(run->fd, VIDIOC_S_DV_TIMINGS, &dv) < 0) { if (us_xioctl(run->fd, VIDIOC_S_DV_TIMINGS, &dv) < 0) {
_D_LOG_PERROR("Failed to set DV-timings"); _D_LOG_PERROR("Failed to apply DV-timings");
return -1; return -1;
} }
if (_device_apply_resolution(dev, dv.bt.width, dv.bt.height, hz) < 0) { if (_device_apply_resolution(dev, dv.bt.width, dv.bt.height, hz) < 0) {
return -1; return -1;
} }
goto subscribe;
} else { querystd:
_D_LOG_DEBUG("Calling us_xioctl(VIDIOC_QUERYSTD) ..."); _D_LOG_DEBUG("Failed to query DV-timings, trying QuerySTD ...");
if (us_xioctl(run->fd, VIDIOC_QUERYSTD, &dev->standard) == 0) { if (us_xioctl(run->fd, VIDIOC_QUERYSTD, &dev->standard) < 0) {
_D_LOG_INFO("Applying the new VIDIOC_S_STD: %s ...", _standard_to_string(dev->standard)); _D_LOG_ERROR("Failed to query DV-timings and QuerySTD");
if (us_xioctl(run->fd, VIDIOC_S_STD, &dev->standard) < 0) {
_D_LOG_PERROR("Can't set video standard");
return -1; return -1;
} }
if (us_xioctl(run->fd, VIDIOC_S_STD, &dev->standard) < 0) {
_D_LOG_PERROR("Can't set apply standard: %s", _standard_to_string(dev->standard));
return -1;
} }
_D_LOG_DEBUG("Applied new video standard: %s", _standard_to_string(dev->standard));
subscribe:
struct v4l2_event_subscription sub = {.type = V4L2_EVENT_SOURCE_CHANGE};
_D_LOG_DEBUG("Subscribing to V4L2_EVENT_SOURCE_CHANGE ...")
if (us_xioctl(dev->run->fd, VIDIOC_SUBSCRIBE_EVENT, &sub) < 0) {
_D_LOG_PERROR("Can't subscribe to V4L2_EVENT_SOURCE_CHANGE");
return -1;
} }
return 0; return 0;
} }