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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
#ifndef DOM_MEDIA_SYSTEMSERVICES_FAKE_VIDEO_CAPTURE_DEVICE_INFO_EMPTY_H_
#define DOM_MEDIA_SYSTEMSERVICES_FAKE_VIDEO_CAPTURE_DEVICE_INFO_EMPTY_H_
#include "device_info_fake.h"
#include "modules/video_capture/device_info_impl.h"
namespace webrtc::videocapturemodule {
/**
* DeviceInfo implementation that reports a single device with zero
* capabilities. Paired with VideoCaptureFake for capturing, this simulates
* real cameras (e.g. v4l2loopback) that do not enumerate capabilities.
*/
class DeviceInfoEmpty : public DeviceInfoImpl {
public:
~DeviceInfoEmpty() override = default;
int32_t Init() override { return 0; }
uint32_t NumberOfDevices() override { return 1; }
int32_t GetDeviceName(uint32_t aDeviceNumber, char* aDeviceNameUTF8,
uint32_t aDeviceNameLength, char* aDeviceUniqueIdUTF8,
uint32_t aDeviceUniqueIdUTF8Length,
char* aProductUniqueIdUTF8 = nullptr,
uint32_t aProductUniqueIdUTF8Length = 0,
pid_t* aPid = nullptr,
bool* deviceIsPlaceholder = nullptr) override;
int32_t NumberOfCapabilities(const char*) override { return 0; }
int32_t GetCapability(const char*, const uint32_t,
VideoCaptureCapability&) override {
return -1;
}
int32_t DisplayCaptureSettingsDialogBox(const char*, const char*, void*,
uint32_t, uint32_t) override {
return -1;
}
int32_t CreateCapabilityMap(const char*) override { return -1; }
static constexpr const char* kName = "Fake Empty Video Source";
// Reuse DeviceInfoFake's unique id so VideoCaptureFake (which writes
// DeviceInfoFake::kId into its _deviceUniqueId) continues to match.
static constexpr const char* kId = DeviceInfoFake::kId;
};
} // namespace webrtc::videocapturemodule
#endif