// in Device Thread (a.k.a. Audio Thread).
class MEDIA_EXPORT VideoCaptureDeviceFactory {
public:
+ static scoped_ptr<VideoCaptureDeviceFactory> CreateFactory(
+ scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
+
VideoCaptureDeviceFactory();
- virtual ~VideoCaptureDeviceFactory() {}
+ virtual ~VideoCaptureDeviceFactory();
// Creates a VideoCaptureDevice object. Returns NULL if something goes wrong.
virtual scoped_ptr<VideoCaptureDevice> Create(
- const VideoCaptureDevice::Name& device_name);
+ const VideoCaptureDevice::Name& device_name) = 0;
- // Gets the names of all video capture devices connected to this computer.
- virtual void GetDeviceNames(VideoCaptureDevice::Names* device_names);
+ // Asynchronous version of GetDeviceNames calling back to |callback|.
+ virtual void EnumerateDeviceNames(const base::Callback<
+ void(scoped_ptr<media::VideoCaptureDevice::Names>)>& callback);
// Gets the supported formats of a particular device attached to the system.
// This method should be called before allocating or starting a device. In
// formats array will be empty.
virtual void GetDeviceSupportedFormats(
const VideoCaptureDevice::Name& device,
- VideoCaptureFormats* supported_formats);
+ VideoCaptureFormats* supported_formats) = 0;
+
+ // Gets the supported formats for still image of a particular device attached
+ // to the system. In case format enumeration is not supported, or there was
+ // a problem, the formats array will be empty.
+ virtual void GetDeviceSupportedImageFormats(
+ const VideoCaptureDevice::Name& device,
+ ImageCaptureFormats* supported_formats) {}
protected:
+ // Gets the names of all video capture devices connected to this computer.
+ // Used by the default implementation of EnumerateDeviceNames().
+ virtual void GetDeviceNames(VideoCaptureDevice::Names* device_names) = 0;
+
base::ThreadChecker thread_checker_;
private: