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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_
#define MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_
#include <stddef.h>
#include <stdint.h>
#include <list>
#include <vector>
#include "base/callback.h"
#include "base/containers/queue.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "media/base/bitrate.h"
#include "media/base/bitstream_buffer.h"
#include "media/video/video_encode_accelerator.h"
namespace base {
class SequencedTaskRunner;
} // namespace base
namespace media {
static const size_t kMinimumOutputBufferSize = 123456;
class FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
public:
explicit FakeVideoEncodeAccelerator(
const scoped_refptr<base::SequencedTaskRunner>& task_runner);
FakeVideoEncodeAccelerator(const FakeVideoEncodeAccelerator&) = delete;
FakeVideoEncodeAccelerator& operator=(const FakeVideoEncodeAccelerator&) =
delete;
~FakeVideoEncodeAccelerator() override;
VideoEncodeAccelerator::SupportedProfiles GetSupportedProfiles() override;
bool Initialize(const Config& config,
Client* client,
std::unique_ptr<MediaLog> media_log = nullptr) override;
void Encode(scoped_refptr<VideoFrame> frame, bool force_keyframe) override;
void UseOutputBitstreamBuffer(BitstreamBuffer buffer) override;
void RequestEncodingParametersChange(const Bitrate& bitrate,
uint32_t framerate) override;
void RequestEncodingParametersChange(const VideoBitrateAllocation& bitrate,
uint32_t framerate) override;
bool IsGpuFrameResizeSupported() override;
void Destroy() override;
const std::vector<Bitrate>& stored_bitrates() const {
return stored_bitrates_;
}
const std::vector<VideoBitrateAllocation>& stored_bitrate_allocations()
const {
return stored_bitrate_allocations_;
}
void SetWillInitializationSucceed(bool will_initialization_succeed);
void SetWillEncodingSucceed(bool will_encoding_succeed);
size_t minimum_output_buffer_size() const { return kMinimumOutputBufferSize; }
struct FrameToEncode {
FrameToEncode();
FrameToEncode(const FrameToEncode&);
~FrameToEncode();
scoped_refptr<VideoFrame> frame;
bool force_keyframe;
};
using EncodingCallback = base::RepeatingCallback<BitstreamBufferMetadata(
BitstreamBuffer&,
bool keyframe,
scoped_refptr<VideoFrame> frame)>;
void SetEncodingCallback(EncodingCallback callback) {
encoding_callback_ = std::move(callback);
}
void SupportResize() { resize_supported_ = true; }
private:
void DoRequireBitstreamBuffers(unsigned int input_count,
const gfx::Size& input_coded_size,
size_t output_buffer_size) const;
void EncodeTask();
void DoBitstreamBufferReady(BitstreamBuffer buffer,
FrameToEncode frame_to_encode) const;
// Our original (constructor) calling message loop used for all tasks.
const scoped_refptr<base::SequencedTaskRunner> task_runner_;
std::vector<Bitrate> stored_bitrates_;
std::vector<VideoBitrateAllocation> stored_bitrate_allocations_;
bool will_initialization_succeed_;
bool will_encoding_succeed_;
bool resize_supported_ = false;
raw_ptr<VideoEncodeAccelerator::Client> client_;
// Keeps track of if the current frame is the first encoded frame. This
// is used to force a fake key frame for the first encoded frame.
bool next_frame_is_first_frame_;
// A queue containing the necessary data for incoming frames.
base::queue<FrameToEncode> queued_frames_;
// A list of buffers available for putting fake encoded frames in.
std::list<BitstreamBuffer> available_buffers_;
// Callback that, if set, does actual frame to buffer conversion.
EncodingCallback encoding_callback_;
base::WeakPtrFactory<FakeVideoEncodeAccelerator> weak_this_factory_{this};
};
} // namespace media
#endif // MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_