Added files for audio readers.

remoting/protocol/audio_reader.cc

 // 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/protocol/protobuf_video_reader.h"
+#include "remoting/protocol/audio_reader.h"
 
 #include "base/bind.h"
 #include "net/socket/stream_socket.h"
 #include "remoting/base/constants.h"
-#include "remoting/proto/video.pb.h"
 #include "remoting/protocol/session.h"
+#include "remoting/protocol/session_config.h"
 
 namespace remoting {
 namespace protocol {
 
-ProtobufVideoReader::ProtobufVideoReader(VideoPacketFormat::Encoding encoding)
+AudioReader::AudioReader(AudioPacket::Encoding encoding)
     : session_(NULL),
       encoding_(encoding),
-      video_stub_(NULL) {
+      audio_stub_(NULL) {
 }
 
-ProtobufVideoReader::~ProtobufVideoReader() {
+AudioReader::~AudioReader() {
   if (session_)
-    session_->CancelChannelCreation(kVideoChannelName);
+    session_->CancelChannelCreation(kAudioChannelName);
 }
 
-void ProtobufVideoReader::Init(protocol::Session* session,
-                               VideoStub* video_stub,
+void AudioReader::Init(protocol::Session* session,
+                               AudioStub* audio_stub,
                                const InitializedCallback& callback) {
   session_ = session;
   initialized_callback_ = callback;
-  video_stub_ = video_stub;
+  audio_stub_ = audio_stub;
 
   session_->CreateStreamChannel(
-      kVideoChannelName,
-      base::Bind(&ProtobufVideoReader::OnChannelReady, base::Unretained(this)));
+      kAudioChannelName,
+      base::Bind(&AudioReader::OnChannelReady, base::Unretained(this)));
 }
 
-bool ProtobufVideoReader::is_connected() {
+bool AudioReader::is_connected() {
   return channel_.get() != NULL;
 }
 
-void ProtobufVideoReader::OnChannelReady(scoped_ptr<net::StreamSocket> socket) {
+void AudioReader::OnChannelReady(scoped_ptr<net::StreamSocket> socket) {
   if (!socket.get()) {
     initialized_callback_.Run(false);
     return;
   }
 
   DCHECK(!channel_.get());
   channel_ = socket.Pass();
-  reader_.Init(channel_.get(), base::Bind(&ProtobufVideoReader::OnNewData,
+  reader_.Init(channel_.get(), base::Bind(&AudioReader::OnNewData,
                                           base::Unretained(this)));
   initialized_callback_.Run(true);
 }
 
-void ProtobufVideoReader::OnNewData(scoped_ptr<VideoPacket> packet,
+void AudioReader::OnNewData(scoped_ptr<AudioPacket> packet,
                                     const base::Closure& done_task) {
-  video_stub_->ProcessVideoPacket(packet.Pass(), done_task);
+  audio_stub_->ProcessAudioPacket(packet.Pass(), done_task);
+}
+
+// static
+AudioReader* AudioReader::Create(const SessionConfig& config) {
+  // TODO(kxing): Support different session configurations.
+  return new AudioReader(AudioPacket::ENCODING_RAW);
 }
 
 }  // namespace protocol
 }  // namespace remoting