blob: 33ec147e2790f61fdd209a062607864171479a32 [file] [log] [blame]
// 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.
#include "remoting/base/decoder.h"
typedef struct vpx_codec_ctx vpx_codec_ctx_t;
typedef struct vpx_image vpx_image_t;
namespace remoting {
class DecoderVp8 : public Decoder {
virtual ~DecoderVp8();
// Decoder implementations.
virtual void Initialize(scoped_refptr<media::VideoFrame> frame) OVERRIDE;
virtual DecodeResult DecodePacket(const VideoPacket* packet) OVERRIDE;
virtual void GetUpdatedRects(RectVector* rects) OVERRIDE;
virtual bool IsReadyForData() OVERRIDE;
virtual void Reset() OVERRIDE;
virtual VideoPacketFormat::Encoding Encoding() OVERRIDE;
virtual void SetScaleRatios(double horizontal_ratio,
double vertical_ratio) OVERRIDE;
virtual void SetClipRect(const SkIRect& clip_rect) OVERRIDE;
virtual void RefreshRects(const RectVector& rects) OVERRIDE;
enum State {
// Return true if scaling is enabled
bool DoScaling() const;
// Perform color space conversion on the specified rectangles.
// Write the updated rectangles to |output_rects|.
void ConvertRects(const RectVector& rects,
RectVector* output_rects);
// Perform scaling and color space conversion on the specified
// rectangles.
// Write the updated rectangles to |output_rects|.
void ScaleAndConvertRects(const RectVector& rects,
RectVector* output_rects);
// The internal state of the decoder.
State state_;
// The video frame to write to.
scoped_refptr<media::VideoFrame> frame_;
vpx_codec_ctx_t* codec_;
// Pointer to the last decoded image.
vpx_image_t* last_image_;
// Record the updated rects in the last decode.
RectVector updated_rects_;
// Clipping rect for the output of the decoder.
SkIRect clip_rect_;
// Scale factors of the decoded output.
double horizontal_scale_ratio_;
double vertical_scale_ratio_;
} // namespace remoting