// Copyright (c) 2011 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_DECODER_ROW_BASED_H_ #define REMOTING_BASE_DECODER_ROW_BASED_H_ #include "remoting/base/decoder.h" namespace remoting { class Decompressor; class DecoderRowBased : public Decoder { public: virtual ~DecoderRowBased(); static DecoderRowBased* CreateZlibDecoder(); static DecoderRowBased* CreateVerbatimDecoder(); // Decoder implementation. virtual bool IsReadyForData(); virtual void Initialize(scoped_refptr<media::VideoFrame> frame); virtual DecodeResult DecodePacket(const VideoPacket* packet); virtual void GetUpdatedRects(RectVector* rects); virtual void Reset(); virtual VideoPacketFormat::Encoding Encoding(); private: enum State { kUninitialized, kReady, kProcessing, kPartitionDone, kDone, kError, }; DecoderRowBased(Decompressor* decompressor, VideoPacketFormat::Encoding encoding); // Helper method. Called from DecodePacket to updated state of the decoder. void UpdateStateForPacket(const VideoPacket* packet); // The internal state of the decoder. State state_; // Keeps track of the updating rect. SkIRect clip_; // The video frame to write to. scoped_refptr<media::VideoFrame> frame_; // The compression for the input byte stream. scoped_ptr<Decompressor> decompressor_; // The encoding of the incoming stream. VideoPacketFormat::Encoding encoding_; // The position in the row that we are updating. int row_pos_; // The current row in the rect that we are updaing. int row_y_; RectVector updated_rects_; DISALLOW_COPY_AND_ASSIGN(DecoderRowBased); }; } // namespace remoting #endif // REMOTING_BASE_DECODER_ROW_BASED_H_