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/*
* Copyright 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef TEST_SCENARIO_VIDEO_STREAM_H_
#define TEST_SCENARIO_VIDEO_STREAM_H_
#include <memory>
#include <string>
#include <vector>
#include "rtc_base/synchronization/mutex.h"
#include "test/fake_encoder.h"
#include "test/fake_videorenderer.h"
#include "test/frame_generator_capturer.h"
#include "test/logging/log_writer.h"
#include "test/scenario/call_client.h"
#include "test/scenario/column_printer.h"
#include "test/scenario/network_node.h"
#include "test/scenario/scenario_config.h"
#include "test/scenario/video_frame_matcher.h"
#include "test/test_video_capturer.h"
namespace webrtc {
namespace test {
// SendVideoStream provides an interface for changing parameters and retrieving
// states at run time.
class SendVideoStream {
public:
~SendVideoStream();
SendVideoStream(const SendVideoStream&) = delete;
SendVideoStream& operator=(const SendVideoStream&) = delete;
void SetCaptureFramerate(int framerate);
VideoSendStream::Stats GetStats() const;
ColumnPrinter StatsPrinter();
void Start();
void Stop();
void UpdateConfig(std::function<void(VideoStreamConfig*)> modifier);
void UpdateActiveLayers(std::vector<bool> active_layers);
bool UsingSsrc(uint32_t ssrc) const;
bool UsingRtxSsrc(uint32_t ssrc) const;
private:
friend class Scenario;
friend class VideoStreamPair;
friend class ReceiveVideoStream;
// Handles RTCP feedback for this stream.
SendVideoStream(CallClient* sender,
VideoStreamConfig config,
Transport* send_transport,
VideoFrameMatcher* matcher);
Mutex mutex_;
std::vector<uint32_t> ssrcs_;
std::vector<uint32_t> rtx_ssrcs_;
VideoSendStream* send_stream_ = nullptr;
CallClient* const sender_;
VideoStreamConfig config_ RTC_GUARDED_BY(mutex_);
std::unique_ptr<VideoEncoderFactory> encoder_factory_;
std::vector<test::FakeEncoder*> fake_encoders_ RTC_GUARDED_BY(mutex_);
std::unique_ptr<VideoBitrateAllocatorFactory> bitrate_allocator_factory_;
std::unique_ptr<FrameGeneratorCapturer> video_capturer_;
std::unique_ptr<ForwardingCapturedFrameTap> frame_tap_;
int next_local_network_id_ = 0;
int next_remote_network_id_ = 0;
};
// ReceiveVideoStream represents a video receiver. It can't be used directly.
class ReceiveVideoStream {
public:
~ReceiveVideoStream();
ReceiveVideoStream(const ReceiveVideoStream&) = delete;
ReceiveVideoStream& operator=(const ReceiveVideoStream&) = delete;
void Start();
void Stop();
VideoReceiveStreamInterface::Stats GetStats() const;
private:
friend class Scenario;
friend class VideoStreamPair;
ReceiveVideoStream(CallClient* receiver,
VideoStreamConfig config,
SendVideoStream* send_stream,
size_t chosen_stream,
Transport* feedback_transport,
VideoFrameMatcher* matcher);
std::vector<VideoReceiveStreamInterface*> receive_streams_;
FlexfecReceiveStream* flecfec_stream_ = nullptr;
FakeVideoRenderer fake_renderer_;
std::vector<std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>>>
render_taps_;
CallClient* const receiver_;
const VideoStreamConfig config_;
std::unique_ptr<VideoDecoderFactory> decoder_factory_;
};
// VideoStreamPair represents a video streaming session. It can be used to
// access underlying send and receive classes. It can also be used in calls to
// the Scenario class.
class VideoStreamPair {
public:
~VideoStreamPair();
VideoStreamPair(const VideoStreamPair&) = delete;
VideoStreamPair& operator=(const VideoStreamPair&) = delete;
SendVideoStream* send() { return &send_stream_; }
ReceiveVideoStream* receive() { return &receive_stream_; }
VideoFrameMatcher* matcher() { return &matcher_; }
private:
friend class Scenario;
VideoStreamPair(CallClient* sender,
CallClient* receiver,
VideoStreamConfig config);
const VideoStreamConfig config_;
VideoFrameMatcher matcher_;
SendVideoStream send_stream_;
ReceiveVideoStream receive_stream_;
};
std::vector<RtpExtension> GetVideoRtpExtensions(const VideoStreamConfig config);
} // namespace test
} // namespace webrtc
#endif // TEST_SCENARIO_VIDEO_STREAM_H_
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