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// 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 <stdint.h>
#include <memory>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "media/base/audio_decoder.h"
#include "media/mojo/interfaces/audio_decoder.mojom.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
namespace media {
class MediaKeys;
class MojoCdmServiceContext;
class MojoDecoderBufferReader;
class MojoAudioDecoderService : public mojom::AudioDecoder {
base::WeakPtr<MojoCdmServiceContext> mojo_cdm_service_context,
std::unique_ptr<media::AudioDecoder> decoder,
mojo::InterfaceRequest<mojom::AudioDecoder> request);
~MojoAudioDecoderService() final;
// mojom::AudioDecoder implementation
void Initialize(mojom::AudioDecoderClientPtr client,
mojom::AudioDecoderConfigPtr config,
int32_t cdm_id,
const InitializeCallback& callback) final;
void SetDataSource(mojo::ScopedDataPipeConsumerHandle receive_pipe) final;
void Decode(mojom::DecoderBufferPtr buffer,
const DecodeCallback& callback) final;
void Reset(const ResetCallback& callback) final;
// Called by |decoder_| upon finishing initialization.
void OnInitialized(const InitializeCallback& callback,
scoped_refptr<MediaKeys> cdm,
bool success);
// Called by |decoder_| when DecoderBuffer is accepted or rejected.
void OnDecodeStatus(const DecodeCallback& callback,
media::DecodeStatus status);
// Called by |decoder_| when reset sequence is finished.
void OnResetDone(const ResetCallback& callback);
// Called by |decoder_| for each decoded buffer.
void OnAudioBufferReady(const scoped_refptr<AudioBuffer>& audio_buffer);
// A binding represents the association between the service and the
// communication channel, i.e. the pipe.
mojo::StrongBinding<mojom::AudioDecoder> binding_;
std::unique_ptr<MojoDecoderBufferReader> mojo_decoder_buffer_reader_;
// A helper object required to get CDM from CDM id.
base::WeakPtr<MojoCdmServiceContext> mojo_cdm_service_context_;
// The AudioDecoder that does actual decoding work.
std::unique_ptr<media::AudioDecoder> decoder_;
// The destination for the decoded buffers.
mojom::AudioDecoderClientPtr client_;
// Hold a reference to the CDM to keep it alive for the lifetime of the
// |decoder_|. The |cdm_| owns the CdmContext which is passed to |decoder_|.
scoped_refptr<MediaKeys> cdm_;
base::WeakPtr<MojoAudioDecoderService> weak_this_;
base::WeakPtrFactory<MojoAudioDecoderService> weak_factory_;
} // namespace media