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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef REMOTING_BASE_ENCODER_VP8_H_ | |
| 6 #define REMOTING_BASE_ENCODER_VP8_H_ | |
| 7 | |
| 8 #include "base/gtest_prod_util.h" | |
| 9 #include "remoting/base/encoder.h" | |
| 10 #include "third_party/skia/include/core/SkRegion.h" | |
| 11 | |
| 12 typedef struct vpx_codec_ctx vpx_codec_ctx_t; | |
| 13 typedef struct vpx_image vpx_image_t; | |
| 14 | |
| 15 namespace remoting { | |
| 16 | |
| 17 // A class that uses VP8 to perform encoding. | |
| 18 class EncoderVp8 : public Encoder { | |
| 19 public: | |
| 20 EncoderVp8(); | |
| 21 virtual ~EncoderVp8(); | |
| 22 | |
| 23 virtual void Encode( | |
| 24 scoped_refptr<CaptureData> capture_data, | |
| 25 bool key_frame, | |
| 26 const DataAvailableCallback& data_available_callback) OVERRIDE; | |
| 27 | |
| 28 private: | |
| 29 FRIEND_TEST_ALL_PREFIXES(EncoderVp8Test, AlignAndClipRect); | |
| 30 | |
| 31 // Initialize the encoder. Returns true if successful. | |
| 32 bool Init(const SkISize& size); | |
| 33 | |
| 34 // Destroy the encoder. | |
| 35 void Destroy(); | |
| 36 | |
| 37 // Prepare |image_| for encoding. Write updated rectangles into | |
| 38 // |updated_region|. | |
| 39 void PrepareImage(scoped_refptr<CaptureData> capture_data, | |
| 40 SkRegion* updated_region); | |
| 41 | |
| 42 // Update the active map according to |updated_region|. Active map is then | |
| 43 // given to the encoder to speed up encoding. | |
| 44 void PrepareActiveMap(const SkRegion& updated_region); | |
| 45 | |
| 46 // True if the encoder is initialized. | |
| 47 bool initialized_; | |
| 48 | |
| 49 scoped_ptr<vpx_codec_ctx_t> codec_; | |
| 50 scoped_ptr<vpx_image_t> image_; | |
| 51 scoped_array<uint8> active_map_; | |
| 52 int active_map_width_; | |
| 53 int active_map_height_; | |
| 54 int last_timestamp_; | |
| 55 | |
| 56 // Buffer for storing the yuv image. | |
| 57 scoped_array<uint8> yuv_image_; | |
| 58 | |
| 59 DISALLOW_COPY_AND_ASSIGN(EncoderVp8); | |
| 60 }; | |
| 61 | |
| 62 } // namespace remoting | |
| 63 | |
| 64 #endif // REMOTING_BASE_ENCODER_VP8_H_ | |
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