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// Copyright 2014 The Chromium Authors. All rights reserved.
// 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 <queue>
#include <vector>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "media/base/bitstream_buffer.h"
#include "media/base/media_export.h"
#include "media/video/video_encode_accelerator.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace media {
static const size_t kMinimumOutputBufferSize = 123456;
class MEDIA_EXPORT FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
public:
explicit FakeVideoEncodeAccelerator(
const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
~FakeVideoEncodeAccelerator() override;
VideoEncodeAccelerator::SupportedProfiles GetSupportedProfiles() override;
bool Initialize(VideoPixelFormat input_format,
const gfx::Size& input_visible_size,
VideoCodecProfile output_profile,
uint32_t initial_bitrate,
Client* client) override;
void Encode(const scoped_refptr<VideoFrame>& frame,
bool force_keyframe) override;
void UseOutputBitstreamBuffer(const BitstreamBuffer& buffer) override;
void RequestEncodingParametersChange(uint32_t bitrate,
uint32_t framerate) override;
void Destroy() override;
const std::vector<uint32_t>& stored_bitrates() const {
return stored_bitrates_;
}
void SendDummyFrameForTesting(bool key_frame);
void SetWillInitializationSucceed(bool will_initialization_succeed);
size_t minimum_output_buffer_size() const { return kMinimumOutputBufferSize; }
private:
void DoRequireBitstreamBuffers(unsigned int input_count,
const gfx::Size& input_coded_size,
size_t output_buffer_size) const;
void EncodeTask();
void DoBitstreamBufferReady(int32_t bitstream_buffer_id,
size_t payload_size,
bool key_frame) const;
// Our original (constructor) calling message loop used for all tasks.
const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
std::vector<uint32_t> stored_bitrates_;
bool will_initialization_succeed_;
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. The boolean
// represent whether the queued frame should force a key frame.
std::queue<bool> queued_frames_;
// A list of buffers available for putting fake encoded frames in.
std::list<BitstreamBuffer> available_buffers_;
base::WeakPtrFactory<FakeVideoEncodeAccelerator> weak_this_factory_;
DISALLOW_COPY_AND_ASSIGN(FakeVideoEncodeAccelerator);
};
} // namespace media
#endif // MEDIA_VIDEO_FAKE_VIDEO_ENCODE_ACCELERATOR_H_