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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_CHROMEOS_CAMERA_FAKE_MJPEG_DECODE_ACCELERATOR_H_
#define COMPONENTS_CHROMEOS_CAMERA_FAKE_MJPEG_DECODE_ACCELERATOR_H_
#include <stdint.h>
#include "base/memory/raw_ptr.h"
#include "base/memory/shared_memory_mapping.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread.h"
#include "components/chromeos_camera/mjpeg_decode_accelerator.h"
#include "media/base/bitstream_buffer.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace chromeos_camera {
// Uses software-based decoding. The purpose of this class is to enable testing
// of communication to the MjpegDecodeAccelerator without requiring an actual
// hardware decoder.
class FakeMjpegDecodeAccelerator : public MjpegDecodeAccelerator {
public:
FakeMjpegDecodeAccelerator(
const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
FakeMjpegDecodeAccelerator(const FakeMjpegDecodeAccelerator&) = delete;
FakeMjpegDecodeAccelerator& operator=(const FakeMjpegDecodeAccelerator&) =
delete;
~FakeMjpegDecodeAccelerator() override;
// MjpegDecodeAccelerator implementation.
void InitializeAsync(chromeos_camera::MjpegDecodeAccelerator::Client* client,
InitCB init_cb) override;
void Decode(media::BitstreamBuffer bitstream_buffer,
scoped_refptr<media::VideoFrame> video_frame) override;
void Decode(int32_t task_id,
base::ScopedFD src_dmabuf_fd,
size_t src_size,
off_t src_offset,
scoped_refptr<media::VideoFrame> dst_frame) override;
bool IsSupported() override;
private:
void DecodeOnDecoderThread(int32_t task_id,
scoped_refptr<media::VideoFrame> video_frame,
base::WritableSharedMemoryMapping src_shm_mapping);
void NotifyError(int32_t task_id, Error error);
void NotifyErrorOnClientThread(int32_t task_id, Error error);
void OnDecodeDoneOnClientThread(int32_t task_id);
void InitializeOnTaskRunner(
chromeos_camera::MjpegDecodeAccelerator::Client* client,
InitCB init_cb);
// Task runner for calls to |client_|.
const scoped_refptr<base::SingleThreadTaskRunner> client_task_runner_;
// GPU IO task runner.
const scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
raw_ptr<Client> client_ = nullptr;
base::Thread decoder_thread_;
scoped_refptr<base::SingleThreadTaskRunner> decoder_task_runner_;
base::WeakPtrFactory<FakeMjpegDecodeAccelerator> weak_factory_{this};
};
} // namespace chromeos_camera
#endif // COMPONENTS_CHROMEOS_CAMERA_FAKE_MJPEG_DECODE_ACCELERATOR_H_
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