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libcamera: add camera location property on nodes

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This commit is contained in:
George Kiagiadakis 2022-05-26 13:37:37 +03:00 • committed by Wim Taymans
parent d4efdb44e3
commit cd8ac5c1a6
2 changed files with 24 additions and 1 deletions
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2
spa/include/spa/utils/keys.h
View file

@ -93,6 +93,8 @@ extern "C" {
#define SPA_KEY_API_LIBCAMERA "api.libcamera" /**< key for the libcamera api */
#define SPA_KEY_API_LIBCAMERA_PATH "api.libcamera.path" /**< libcamera device path as can be
* used in open() */
#define SPA_KEY_API_LIBCAMERA_LOCATION "api.libcamera.location" /**< location of the camera:
* "front", "back" or "external" */
/** info from libcamera_capability */
#define SPA_KEY_API_LIBCAMERA_CAP_DRIVER "api.libcamera.cap.driver" /**< driver from capbility */

23
spa/plugins/libcamera/libcamera-device.cpp
View file

@ -108,6 +108,25 @@ std::string cameraDesc(const Camera *camera)
return name;
}
std::string cameraLoc(const Camera *camera)
{
const ControlList &props = camera->properties();
std::string location;
if (props.contains(properties::Location)) {
switch (props.get(properties::Location)) {
case properties::CameraLocationFront:
location = "front";
break;
case properties::CameraLocationBack:
location = "back";
break;
case properties::CameraLocationExternal:
location = "external";
break;
}
}
return location;
}
static int emit_info(struct impl *impl, bool full)
{
@ -116,7 +135,7 @@ static int emit_info(struct impl *impl, bool full)
uint32_t n_items = 0;
struct spa_device_info info;
struct spa_param_info params[2];
char path[256], desc[256], name[256];
char path[256], location[10], desc[256], name[256];
info = SPA_DEVICE_INFO_INIT();
@ -128,6 +147,8 @@ static int emit_info(struct impl *impl, bool full)
ADD_ITEM(SPA_KEY_DEVICE_API, "libcamera");
ADD_ITEM(SPA_KEY_MEDIA_CLASS, "Video/Device");
ADD_ITEM(SPA_KEY_API_LIBCAMERA_PATH, (char *)impl->props.device);
snprintf(location, sizeof(location), "%s", cameraLoc(impl->camera.get()).c_str());
ADD_ITEM(SPA_KEY_API_LIBCAMERA_LOCATION, location);
snprintf(desc, sizeof(desc), "%s", cameraDesc(impl->camera.get()).c_str());
ADD_ITEM(SPA_KEY_DEVICE_DESCRIPTION, desc);
snprintf(name, sizeof(name), "libcamera_device.%s", impl->props.device);