blob: 86e575035128f779de58f5bc5eb30aad8bb91fd2 [file] [log] [blame]
// Copyright 2016 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.
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "media/base/video_decoder.h"
#include "media/mojo/interfaces/video_decoder.mojom.h"
#include "mojo/public/cpp/bindings/associated_binding.h"
namespace base {
class SingleThreadTaskRunner;
namespace media {
class GpuVideoAcceleratorFactories;
class MojoDecoderBufferWriter;
// A VideoDecoder, for use in the renderer process, that proxies to a
// mojom::VideoDecoder. It is assumed that the other side will be implemented by
// MojoVideoDecoderService, running in the GPU process, and that the remote
// decoder will be hardware accelerated.
class MojoVideoDecoder final : public VideoDecoder,
public mojom::VideoDecoderClient {
MojoVideoDecoder(scoped_refptr<base::SingleThreadTaskRunner> task_runner,
GpuVideoAcceleratorFactories* gpu_factories,
mojom::VideoDecoderPtr remote_decoder);
~MojoVideoDecoder() final;
// VideoDecoder implementation.
std::string GetDisplayName() const final;
void Initialize(const VideoDecoderConfig& config,
bool low_delay,
CdmContext* cdm_context,
const InitCB& init_cb,
const OutputCB& output_cb) final;
void Decode(const scoped_refptr<DecoderBuffer>& buffer,
const DecodeCB& decode_cb) final;
void Reset(const base::Closure& closure) final;
bool NeedsBitstreamConversion() const final;
bool CanReadWithoutStalling() const final;
int GetMaxDecodeRequests() const final;
// mojom::VideoDecoderClient implementation.
void OnVideoFrameDecoded(
mojom::VideoFramePtr frame,
const base::Optional<base::UnguessableToken>& release_token) final;
void OnInitializeDone(bool status,
bool needs_bitstream_conversion,
int32_t max_decode_requests);
void OnDecodeDone(uint64_t decode_id, DecodeStatus status);
void OnResetDone();
void BindRemoteDecoder();
void OnReleaseMailbox(const base::UnguessableToken& release_token,
const gpu::SyncToken& release_sync_token);
// Cleans up callbacks and blocks future calls.
void Stop();
// Task runner that the decoder runs on (media thread).
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
// Used to pass the remote decoder from the constructor (on the main thread)
// to Initialize() (on the media thread).
mojom::VideoDecoderPtrInfo remote_decoder_info_;
GpuVideoAcceleratorFactories* gpu_factories_ = nullptr;
InitCB init_cb_;
OutputCB output_cb_;
uint64_t decode_counter_ = 0;
std::map<uint64_t, DecodeCB> pending_decodes_;
base::Closure reset_cb_;
mojom::VideoDecoderPtr remote_decoder_;
std::unique_ptr<MojoDecoderBufferWriter> mojo_decoder_buffer_writer_;
bool remote_decoder_bound_ = false;
bool has_connection_error_ = false;
mojo::AssociatedBinding<VideoDecoderClient> client_binding_;
bool initialized_ = false;
bool needs_bitstream_conversion_ = false;
int32_t max_decode_requests_ = 1;
base::WeakPtr<MojoVideoDecoder> weak_this_;
base::WeakPtrFactory<MojoVideoDecoder> weak_factory_;
} // namespace media