| // Copyright (c) 2010 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 REMOTING_BASE_ENCODER_H_ |
| #define REMOTING_BASE_ENCODER_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/callback_old.h" |
| #include "media/base/data_buffer.h" |
| |
| namespace media { |
| class DataBuffer; |
| } |
| |
| namespace remoting { |
| |
| class CaptureData; |
| class VideoPacket; |
| |
| // A class to perform the task of encoding a continous stream of |
| // images. |
| // This class operates asynchronously to enable maximum throughput. |
| class Encoder { |
| public: |
| |
| // DataAvailableCallback is called as blocks of data are made available |
| // from the encoder. Data made available by the encoder is in the form |
| // of HostMessage to reduce the amount of memory copies. |
| // The callback takes ownership of the HostMessage and is responsible for |
| // deleting it. |
| typedef Callback1<VideoPacket*>::Type DataAvailableCallback; |
| |
| virtual ~Encoder() {} |
| |
| // Encode an image stored in |capture_data|. |
| // |
| // If |key_frame| is true, the encoder should not reference |
| // previous encode and encode the full frame. |
| // |
| // When encoded data is available, partial or full |data_available_callback| |
| // is called. |
| virtual void Encode(scoped_refptr<CaptureData> capture_data, |
| bool key_frame, |
| DataAvailableCallback* data_available_callback) = 0; |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_BASE_ENCODER_H_ |