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// Copyright (c) 2011 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 CONTENT_RENDERER_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_
#define CONTENT_RENDERER_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "base/shared_memory.h"
#include "ipc/ipc_channel.h"
#include "media/video/video_decode_accelerator.h"
class MessageLoop;
class MessageRouter;
// This class is used to talk to VideoDecodeAccelerator in the Gpu process
// through IPC messages.
class GpuVideoDecodeAcceleratorHost : public IPC::Channel::Listener,
public media::VideoDecodeAccelerator {
public:
// |router| is used to dispatch IPC messages to this object.
// |ipc_sender| is used to send IPC messages to Gpu process.
GpuVideoDecodeAcceleratorHost(MessageRouter* router,
IPC::Message::Sender* ipc_sender,
int32 decoder_host_id,
media::VideoDecodeAccelerator::Client* client);
virtual ~GpuVideoDecodeAcceleratorHost();
// IPC::Channel::Listener implementation.
virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
virtual void OnChannelError() OVERRIDE;
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// media::VideoDecodeAccelerator implementation.
virtual void GetConfigs(
const std::vector<uint32>& requested_configs,
std::vector<uint32>* matched_configs) OVERRIDE;
virtual bool Initialize(const std::vector<uint32>& configs) OVERRIDE;
virtual bool Decode(const media::BitstreamBuffer& bitstream_buffer) OVERRIDE;
virtual void AssignGLESBuffers(
const std::vector<media::GLESBuffer>& buffers) OVERRIDE;
virtual void AssignSysmemBuffers(
const std::vector<media::SysmemBuffer>& buffers) OVERRIDE;
virtual void ReusePictureBuffer(int32 picture_buffer_id) OVERRIDE;
virtual bool Flush() OVERRIDE;
virtual bool Abort() OVERRIDE;
private:
void OnBitstreamBufferProcessed(int32 bitstream_buffer_id);
void OnProvidePictureBuffer(
uint32 num_requested_buffers, const gfx::Size& buffer_size, int32 mem_type);
void OnDismissPictureBuffer(int32 picture_buffer_id);
void OnCreateDone(int32 decoder_id);
void OnInitializeDone();
void OnPictureReady(int32 picture_buffer_id,
int32 bitstream_buffer_id,
const gfx::Size& visible_size,
const gfx::Size& decoded_size);
void OnFlushDone();
void OnAbortDone();
void OnEndOfStream();
void OnErrorNotification(uint32 error);
// A router used to send us IPC messages.
MessageRouter* router_;
// Sends IPC messages to the Gpu process.
IPC::Message::Sender* ipc_sender_;
// ID of this GpuVideoDecodeAcceleratorHost.
int32 decoder_host_id_;
// ID of VideoDecodeAccelerator in the Gpu process.
int32 decoder_id_;
// Temporarily store configs here in between Create and Initialize phase.
std::vector<uint32> configs_;
// Reference to the client that will receive callbacks from the decoder.
media::VideoDecodeAccelerator::Client* client_;
DISALLOW_COPY_AND_ASSIGN(GpuVideoDecodeAcceleratorHost);
};
#endif // CONTENT_RENDERER_GPU_VIDEO_DECODE_ACCELERATOR_HOST_H_
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