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// Copyright (c) 2012 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 "remoting/client/audio_decode_scheduler.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/macros.h"
#include "base/single_thread_task_runner.h"
#include "remoting/client/audio_player.h"
#include "remoting/codec/audio_decoder.h"
#include "remoting/proto/audio.pb.h"
namespace remoting {
class AudioDecodeScheduler::Core : public base::RefCountedThreadSafe<Core> {
public:
Core(scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
scoped_ptr<AudioPlayer> audio_player);
void Initialize(const protocol::SessionConfig& config);
void ProcessAudioPacket(scoped_ptr<AudioPacket> packet,
const base::Closure& done);
// Called by AudioDecodeScheduler when it is destroyed.
void Detach();
private:
friend class base::RefCountedThreadSafe<Core>;
virtual ~Core();
// Called on the audio decoder thread.
void DecodePacket(scoped_ptr<AudioPacket> packet, const base::Closure& done);
// Called on the main thread.
void ProcessDecodedPacket(scoped_ptr<AudioPacket> packet,
const base::Closure& done);
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner_;
scoped_ptr<AudioDecoder> decoder_;
scoped_ptr<AudioPlayer> audio_player_;
DISALLOW_COPY_AND_ASSIGN(Core);
};
AudioDecodeScheduler::Core::Core(
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
scoped_ptr<AudioPlayer> audio_player)
: main_task_runner_(main_task_runner),
audio_decode_task_runner_(audio_decode_task_runner),
audio_player_(audio_player.Pass()) {
}
AudioDecodeScheduler::Core::~Core() {
}
void AudioDecodeScheduler::Core::Initialize(
const protocol::SessionConfig& config) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
decoder_.reset(AudioDecoder::CreateAudioDecoder(config).release());
}
void AudioDecodeScheduler::Core::ProcessAudioPacket(
scoped_ptr<AudioPacket> packet,
const base::Closure& done) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
audio_decode_task_runner_->PostTask(FROM_HERE, base::Bind(
&AudioDecodeScheduler::Core::DecodePacket, this,
base::Passed(&packet), done));
}
void AudioDecodeScheduler::Core::Detach() {
DCHECK(main_task_runner_->BelongsToCurrentThread());
audio_player_.reset();
}
void AudioDecodeScheduler::Core::DecodePacket(
scoped_ptr<AudioPacket> packet,
const base::Closure& done) {
DCHECK(audio_decode_task_runner_->BelongsToCurrentThread());
scoped_ptr<AudioPacket> decoded_packet = decoder_->Decode(packet.Pass());
main_task_runner_->PostTask(FROM_HERE, base::Bind(
&AudioDecodeScheduler::Core::ProcessDecodedPacket, this,
base::Passed(&decoded_packet), done));
}
void AudioDecodeScheduler::Core::ProcessDecodedPacket(
scoped_ptr<AudioPacket> packet,
const base::Closure& done) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
// Only process |packet| if it is non-null.
if (packet.get() && audio_player_.get())
audio_player_->ProcessAudioPacket(packet.Pass());
done.Run();
}
AudioDecodeScheduler::AudioDecodeScheduler(
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
scoped_ptr<AudioPlayer> audio_player)
: core_(new Core(main_task_runner, audio_decode_task_runner,
audio_player.Pass())) {
}
AudioDecodeScheduler::~AudioDecodeScheduler() {
core_->Detach();
}
void AudioDecodeScheduler::Initialize(const protocol::SessionConfig& config) {
core_->Initialize(config);
}
void AudioDecodeScheduler::ProcessAudioPacket(scoped_ptr<AudioPacket> packet,
const base::Closure& done) {
core_->ProcessAudioPacket(packet.Pass(), done);
}
} // namespace remoting
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