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device: add helpers for count enqueued

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This commit is contained in:
Kamil Trzcinski
2023-02-22 13:29:28 +01:00
parent 23491cef49
commit 86e89a6291
2 changed files with 28 additions and 0 deletions
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25
device/device.c
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@ -309,3 +309,28 @@ void device_set_option_list(device_t *dev, const char *option_list)
free(start); free(start);
} }
int device_output_enqueued(device_t *dev)
{
if (dev->output_list)
return buffer_list_count_enqueued(dev->output_list);
return 0;
}
int device_capture_enqueued(device_t *dev, int *max)
{
int min_val = 100;
int max_val = 0;
for (int i = 0; i < dev->n_capture_list; i++) {
int count = buffer_list_count_enqueued(dev->capture_lists[i]);
min_val = MIN(min_val, count);
max_val = MAX(max_val, count);
}
min_val = MIN(min_val, max_val);
if (max) {
*max = max_val;
}
return min_val;
}

3
device/device.h
View File

@ -75,6 +75,9 @@ int device_set_rotation(device_t *dev, bool vflip, bool hflip);
int device_set_option_string(device_t *dev, const char *option, const char *value); int device_set_option_string(device_t *dev, const char *option, const char *value);
void device_set_option_list(device_t *dev, const char *option_list); void device_set_option_list(device_t *dev, const char *option_list);
int device_output_enqueued(device_t *dev);
int device_capture_enqueued(device_t *dev, int *max);
device_t *device_v4l2_open(const char *name, const char *path); device_t *device_v4l2_open(const char *name, const char *path);
device_t *device_libcamera_open(const char *name, const char *path); device_t *device_libcamera_open(const char *name, const char *path);
device_t *device_dummy_open(const char *name, const char *path); device_t *device_dummy_open(const char *name, const char *path);