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// 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_ENCODER_VP8_H_
#define REMOTING_BASE_ENCODER_VP8_H_
#include <vector>
#include "remoting/base/encoder.h"
#include "ui/gfx/rect.h"
typedef struct vpx_codec_ctx vpx_codec_ctx_t;
typedef struct vpx_image vpx_image_t;
namespace remoting {
// A class that uses VP8 to perform encoding.
class EncoderVp8 : public Encoder {
public:
EncoderVp8();
virtual ~EncoderVp8();
virtual void Encode(scoped_refptr<CaptureData> capture_data,
bool key_frame,
DataAvailableCallback* data_available_callback);
private:
// Initialize the encoder. Returns true if successful.
bool Init(const gfx::Size& size);
// Prepare |image_| for encoding. Write updated rectangles into
// |updated_rects|. Returns true if successful.
bool PrepareImage(scoped_refptr<CaptureData> capture_data,
std::vector<gfx::Rect>* updated_rects);
// Update the active map according to |updated_rects|. Active map is then
// given to the encoder to speed up encoding.
void PrepareActiveMap(const std::vector<gfx::Rect>& updated_rects);
// True if the encoder is initialized.
bool initialized_;
scoped_ptr<vpx_codec_ctx_t> codec_;
scoped_ptr<vpx_image_t> image_;
scoped_array<uint8> active_map_;
int active_map_width_;
int active_map_height_;
int last_timestamp_;
// Buffer for storing the yuv image.
scoped_array<uint8> yuv_image_;
// The current frame size.
gfx::Size size_;
DISALLOW_COPY_AND_ASSIGN(EncoderVp8);
};
} // namespace remoting
#endif // REMOTING_BASE_ENCODER_VP8_H_
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