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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 "media/mojo/services/mojo_audio_decoder_service.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/logging.h"
#include "media/base/cdm_context.h"
#include "media/base/content_decryption_module.h"
#include "media/mojo/common/media_type_converters.h"
#include "media/mojo/common/mojo_decoder_buffer_converter.h"
#include "media/mojo/services/mojo_cdm_service_context.h"
namespace media {
MojoAudioDecoderService::MojoAudioDecoderService(
MojoCdmServiceContext* mojo_cdm_service_context,
std::unique_ptr<media::AudioDecoder> decoder)
: mojo_cdm_service_context_(mojo_cdm_service_context),
decoder_(std::move(decoder)),
weak_factory_(this) {
DCHECK(mojo_cdm_service_context_);
weak_this_ = weak_factory_.GetWeakPtr();
}
MojoAudioDecoderService::~MojoAudioDecoderService() = default;
void MojoAudioDecoderService::Construct(
mojom::AudioDecoderClientAssociatedPtrInfo client) {
DVLOG(1) << __func__;
client_.Bind(std::move(client));
}
void MojoAudioDecoderService::Initialize(const AudioDecoderConfig& config,
int32_t cdm_id,
InitializeCallback callback) {
DVLOG(1) << __func__ << " " << config.AsHumanReadableString();
// Get CdmContext from cdm_id if the stream is encrypted.
CdmContext* cdm_context = nullptr;
if (config.is_encrypted()) {
cdm_context_ref_ = mojo_cdm_service_context_->GetCdmContextRef(cdm_id);
if (!cdm_context_ref_) {
DVLOG(1) << "CdmContextRef not found for CDM id: " << cdm_id;
std::move(callback).Run(false, false);
return;
}
cdm_context = cdm_context_ref_->GetCdmContext();
DCHECK(cdm_context);
}
decoder_->Initialize(
config, cdm_context,
base::Bind(&MojoAudioDecoderService::OnInitialized, weak_this_,
base::Passed(&callback)),
base::Bind(&MojoAudioDecoderService::OnAudioBufferReady, weak_this_),
base::Bind(&MojoAudioDecoderService::OnWaiting, weak_this_));
}
void MojoAudioDecoderService::SetDataSource(
mojo::ScopedDataPipeConsumerHandle receive_pipe) {
DVLOG(1) << __func__;
mojo_decoder_buffer_reader_.reset(
new MojoDecoderBufferReader(std::move(receive_pipe)));
}
void MojoAudioDecoderService::Decode(mojom::DecoderBufferPtr buffer,
DecodeCallback callback) {
DVLOG(3) << __func__;
mojo_decoder_buffer_reader_->ReadDecoderBuffer(
std::move(buffer), base::BindOnce(&MojoAudioDecoderService::OnReadDone,
weak_this_, std::move(callback)));
}
void MojoAudioDecoderService::Reset(ResetCallback callback) {
DVLOG(1) << __func__;
// Reset the reader so that pending decodes will be dispatches first.
mojo_decoder_buffer_reader_->Flush(
base::Bind(&MojoAudioDecoderService::OnReaderFlushDone, weak_this_,
base::Passed(&callback)));
}
void MojoAudioDecoderService::OnInitialized(InitializeCallback callback,
bool success) {
DVLOG(1) << __func__ << " success:" << success;
if (!success) {
cdm_context_ref_.reset();
// Do not call decoder_->NeedsBitstreamConversion() if init failed.
std::move(callback).Run(false, false);
return;
}
std::move(callback).Run(success, decoder_->NeedsBitstreamConversion());
}
// The following methods are needed so that we can bind them with a weak pointer
// to avoid running the |callback| after connection error happens and |this| is
// deleted. It's not safe to run the |callback| after a connection error.
void MojoAudioDecoderService::OnReadDone(DecodeCallback callback,
scoped_refptr<DecoderBuffer> buffer) {
DVLOG(3) << __func__ << " success:" << !!buffer;
if (!buffer) {
std::move(callback).Run(DecodeStatus::DECODE_ERROR);
return;
}
decoder_->Decode(buffer, base::Bind(&MojoAudioDecoderService::OnDecodeStatus,
weak_this_, base::Passed(&callback)));
}
void MojoAudioDecoderService::OnReaderFlushDone(ResetCallback callback) {
decoder_->Reset(base::Bind(&MojoAudioDecoderService::OnResetDone, weak_this_,
base::Passed(&callback)));
}
void MojoAudioDecoderService::OnDecodeStatus(DecodeCallback callback,
media::DecodeStatus status) {
DVLOG(3) << __func__ << " status:" << status;
std::move(callback).Run(status);
}
void MojoAudioDecoderService::OnResetDone(ResetCallback callback) {
DVLOG(1) << __func__;
std::move(callback).Run();
}
void MojoAudioDecoderService::OnAudioBufferReady(
const scoped_refptr<AudioBuffer>& audio_buffer) {
DVLOG(1) << __func__;
// TODO(timav): Use DataPipe.
client_->OnBufferDecoded(mojom::AudioBuffer::From(audio_buffer));
}
void MojoAudioDecoderService::OnWaiting(WaitingReason reason) {
DVLOG(1) << __func__;
client_->OnWaiting(reason);
}
} // namespace media
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