blob: 6b67a9078c8f4c15114c7bc6bc7b27b17b55c46b [file] [log] [blame]
// Copyright 2015 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_MOJO_CLIENTS_MOJO_JPEG_DECODE_ACCELERATOR_H_
#define MEDIA_MOJO_CLIENTS_MOJO_JPEG_DECODE_ACCELERATOR_H_
#include <stdint.h>
#include <memory>
#include "base/macros.h"
#include "media/mojo/interfaces/jpeg_decode_accelerator.mojom.h"
#include "media/video/jpeg_decode_accelerator.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace media {
// A JpegDecodeAccelerator, for use in the browser process, that proxies to a
// mojom::JpegDecodeAccelerator. Created on the owner's thread, otherwise
// operating and deleted on the IO thread.
class MojoJpegDecodeAccelerator : public JpegDecodeAccelerator {
public:
MojoJpegDecodeAccelerator(
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
mojom::JpegDecodeAcceleratorPtrInfo jpeg_decoder);
~MojoJpegDecodeAccelerator() override;
// JpegDecodeAccelerator implementation.
// |client| is called on the IO thread, but is never called into after the
// MojoJpegDecodeAccelerator is destroyed.
bool Initialize(Client* client) override;
void InitializeAsync(Client* client, InitCB init_cb) override;
void Decode(const BitstreamBuffer& bitstream_buffer,
const scoped_refptr<VideoFrame>& video_frame) override;
bool IsSupported() override;
private:
void OnInitializeDone(InitCB init_cb,
JpegDecodeAccelerator::Client* client,
bool success);
void OnDecodeAck(int32_t bitstream_buffer_id,
::media::JpegDecodeAccelerator::Error error);
void OnLostConnectionToJpegDecoder();
// Browser IO task runner.
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
Client* client_ = nullptr;
// Used to safely pass the mojom::JpegDecodeAcceleratorPtr from one thread to
// another. It is set in the constructor and consumed in InitializeAsync().
// TODO(mcasas): s/jpeg_decoder_/jda_/ https://crbug.com/699255.
mojom::JpegDecodeAcceleratorPtrInfo jpeg_decoder_info_;
mojom::JpegDecodeAcceleratorPtr jpeg_decoder_;
DISALLOW_COPY_AND_ASSIGN(MojoJpegDecodeAccelerator);
};
} // namespace media
#endif // MEDIA_MOJO_CLIENTS_MOJO_JPEG_DECODE_ACCELERATOR_H_