1 files changed, 63 insertions, 0 deletions
diff --git a/media/cast/audio_sender/audio_encoder.h b/media/cast/audio_sender/audio_encoder.h
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+++ b/media/cast/audio_sender/audio_encoder.h
@@ -0,0 +1,63 @@
+// Copyright 2013 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.
+
+#ifndef MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_
+#define MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "media/cast/cast_config.h"
+#include "media/cast/cast_thread.h"
+#include "media/cast/rtp_sender/rtp_sender.h"
+
+namespace webrtc {
+class AudioCodingModule;
+}
+
+namespace media {
+namespace cast {
+
+class WebrtEncodedDataCallback;
+
+// Thread safe class.
+// It should be called from the main cast thread; however that is not required.
+class AudioEncoder : public base::RefCountedThreadSafe<AudioEncoder> {
+ public:
+  typedef base::Callback<void(scoped_ptr<EncodedAudioFrame>,
+                              const base::TimeTicks&)> FrameEncodedCallback;
+
+  AudioEncoder(scoped_refptr<CastThread> cast_thread,
+               const AudioSenderConfig& audio_config);
+
+  virtual ~AudioEncoder();
+
+  // The audio_frame must be valid until the closure callback is called.
+  // The closure callback is called from the main cast thread as soon as
+  // the encoder is done with the frame; it does not mean that the encoded frame
+  // has been sent out.
+  void InsertRawAudioFrame(const PcmAudioFrame* audio_frame,
+                           const base::TimeTicks& recorded_time,
+                           const FrameEncodedCallback& frame_encoded_callback,
+                           const base::Closure callback);
+
+ private:
+  void EncodeAudioFrameThread(
+      const PcmAudioFrame* audio_frame,
+      const base::TimeTicks& recorded_time,
+      const FrameEncodedCallback& frame_encoded_callback,
+      const base::Closure release_callback);
+
+  scoped_refptr<CastThread> cast_thread_;
+  // Can't use scoped_ptr due to protected constructor within webrtc.
+  webrtc::AudioCodingModule* audio_encoder_;
+  scoped_ptr<WebrtEncodedDataCallback> webrtc_encoder_callback_;
+  uint32 timestamp_;
+
+  DISALLOW_COPY_AND_ASSIGN(AudioEncoder);
+};
+
+}  // namespace cast
+}  // namespace media
+
+#endif  // MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_