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First implementation of image settings

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This commit is contained in:
Devaev Maxim
2019-03-05 09:54:15 +03:00
parent e683d1d370
commit 09fc14d63d
3 changed files with 124 additions and 19 deletions
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45
src/device.c
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@@ -65,6 +65,7 @@ static int _device_open_check_cap(struct device_t *dev);
static int _device_open_dv_timings(struct device_t *dev);
static int _device_apply_dv_timings(struct device_t *dev);
static int _device_open_format(struct device_t *dev);
static void _device_open_set_image_settings(struct device_t *dev);
static void _device_open_alloc_picbufs(struct device_t *dev);
static int _device_open_mmap(struct device_t *dev);
static int _device_open_queue_buffers(struct device_t *dev);
@@ -77,9 +78,12 @@ static const char *_standard_to_string(v4l2_std_id standard);
struct device_t *device_init() {
struct image_settings_t *img;
struct device_runtime_t *run;
struct device_t *dev;
A_CALLOC(img, 1);
A_CALLOC(run, 1);
run->fd = -1;
@@ -93,12 +97,14 @@ struct device_t *device_init() {
dev->n_workers = dev->n_buffers;
dev->timeout = 1;
dev->error_delay = 1;
dev->img = img;
dev->run = run;
return dev;
}
void device_destroy(struct device_t *dev) {
free(dev->run);
free(dev->img);
free(dev);
}
@@ -136,6 +142,7 @@ int device_open(struct device_t *dev) {
if (_device_open_format(dev) < 0) {
goto error;
}
_device_open_set_image_settings(dev);
if (_device_open_mmap(dev) < 0) {
goto error;
}
@@ -350,6 +357,44 @@ static int _device_open_format(struct device_t *dev) {
return 0;
}
static void _device_open_set_image_settings(struct device_t *dev) {
struct v4l2_queryctrl query;
struct v4l2_control ctl;
# define SET_CID(_cid, _dest) { \
MEMSET_ZERO(query); query.id = _cid; \
if (xioctl(dev->run->fd, VIDIOC_QUERYCTRL, &query) != 0) { \
LOG_INFO("Changing image " #_dest " is unsupported"); \
} else { \
MEMSET_ZERO(ctl); ctl.id = _cid; ctl.value = (int)dev->img->_dest; \
if (xioctl(dev->run->fd, VIDIOC_S_CTRL, &ctl) < 0) { LOG_PERROR("Can't set image " #_dest); } \
else { LOG_INFO("Using image " #_dest ": %d", ctl.value); } \
} \
}
# define SET_CID_MANUAL(_cid, _dest) { \
if (dev->img->_dest##_set) { SET_CID(_cid, _dest); } \
}
# define SET_CID_AUTO(_cid_auto, _cid_manual, _dest) { \
if (dev->img->_dest##_set) { \
SET_CID(_cid_auto, _dest##_auto); \
if (!dev->img->_dest##_auto) { SET_CID(_cid_manual, _dest); } \
} \
}
SET_CID_AUTO (V4L2_CID_AUTOBRIGHTNESS, V4L2_CID_BRIGHTNESS, brightness);
SET_CID_MANUAL ( V4L2_CID_CONTRAST, contrast);
SET_CID_MANUAL ( V4L2_CID_SATURATION, saturation);
SET_CID_AUTO (V4L2_CID_HUE_AUTO, V4L2_CID_HUE, hue);
SET_CID_MANUAL ( V4L2_CID_GAMMA, gamma);
SET_CID_MANUAL ( V4L2_CID_SHARPNESS, sharpness);
# undef SET_CID_AUTO
# undef SET_CID_MANUAL
# undef SET_CID
}
static int _device_open_mmap(struct device_t *dev) {
struct v4l2_requestbuffers req;