| // 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. |
| |
| #ifndef REMOTING_CODEC_VIDEO_ENCODER_H_ |
| #define REMOTING_CODEC_VIDEO_ENCODER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| namespace webrtc { |
| class DesktopFrame; |
| } // namespace webrtc |
| |
| namespace remoting { |
| namespace protocol { |
| class SessionConfig; |
| } // namespace protocol |
| class VideoPacket; |
| |
| // A class to perform the task of encoding a continuous stream of images. The |
| // interface is asynchronous to enable maximum throughput. |
| class VideoEncoder { |
| public: |
| virtual ~VideoEncoder() {} |
| |
| // Request that the encoder provide lossless encoding, or color, if possible. |
| virtual void SetLosslessEncode(bool want_lossless) {} |
| virtual void SetLosslessColor(bool want_lossless) {} |
| |
| // Encode an image stored in |frame|. If |frame.updated_region()| is empty |
| // then the encoder may return a packet (e.g. to top-off previously-encoded |
| // portions of the frame to higher quality) or return nullptr to indicate that |
| // there is no work to do. |
| virtual std::unique_ptr<VideoPacket> Encode( |
| const webrtc::DesktopFrame& frame) = 0; |
| |
| static std::unique_ptr<VideoEncoder> Create( |
| const protocol::SessionConfig& config); |
| }; |
| |
| } // namespace remoting |
| |
| #endif // REMOTING_CODEC_VIDEO_ENCODER_H_ |