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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ | 5 #ifndef MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ |
| 6 #define MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ | 6 #define MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ |
| 7 | 7 |
| 8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
| 9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
| 10 #include "base/threading/thread_checker.h" | 10 #include "base/threading/thread_checker.h" |
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| 26 const int kNumberOfVp8VideoBuffers = 3; | 26 const int kNumberOfVp8VideoBuffers = 3; |
| 27 | 27 |
| 28 class Vp8Encoder : public SoftwareVideoEncoder { | 28 class Vp8Encoder : public SoftwareVideoEncoder { |
| 29 public: | 29 public: |
| 30 Vp8Encoder(const VideoSenderConfig& video_config, int max_unacked_frames); | 30 Vp8Encoder(const VideoSenderConfig& video_config, int max_unacked_frames); |
| 31 | 31 |
| 32 virtual ~Vp8Encoder(); | 32 virtual ~Vp8Encoder(); |
| 33 | 33 |
| 34 // Initialize the encoder before Encode() can be called. This method | 34 // Initialize the encoder before Encode() can be called. This method |
| 35 // must be called on the thread that Encode() is called. | 35 // must be called on the thread that Encode() is called. |
| 36 virtual void Initialize() OVERRIDE; | 36 virtual void Initialize() override; |
| 37 | 37 |
| 38 // Encode a raw image (as a part of a video stream). | 38 // Encode a raw image (as a part of a video stream). |
| 39 virtual bool Encode(const scoped_refptr<media::VideoFrame>& video_frame, | 39 virtual bool Encode(const scoped_refptr<media::VideoFrame>& video_frame, |
| 40 EncodedFrame* encoded_image) OVERRIDE; | 40 EncodedFrame* encoded_image) override; |
| 41 | 41 |
| 42 // Update the encoder with a new target bit rate. | 42 // Update the encoder with a new target bit rate. |
| 43 virtual void UpdateRates(uint32 new_bitrate) OVERRIDE; | 43 virtual void UpdateRates(uint32 new_bitrate) override; |
| 44 | 44 |
| 45 // Set the next frame to be a key frame. | 45 // Set the next frame to be a key frame. |
| 46 virtual void GenerateKeyFrame() OVERRIDE; | 46 virtual void GenerateKeyFrame() override; |
| 47 | 47 |
| 48 virtual void LatestFrameIdToReference(uint32 frame_id) OVERRIDE; | 48 virtual void LatestFrameIdToReference(uint32 frame_id) override; |
| 49 | 49 |
| 50 private: | 50 private: |
| 51 enum Vp8Buffers { | 51 enum Vp8Buffers { |
| 52 kAltRefBuffer = 0, | 52 kAltRefBuffer = 0, |
| 53 kGoldenBuffer = 1, | 53 kGoldenBuffer = 1, |
| 54 kLastBuffer = 2, | 54 kLastBuffer = 2, |
| 55 kNoBuffer = 3 // Note: must be last. | 55 kNoBuffer = 3 // Note: must be last. |
| 56 }; | 56 }; |
| 57 | 57 |
| 58 enum Vp8BufferState { | 58 enum Vp8BufferState { |
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| 101 // This is bound to the thread where Initialize() is called. | 101 // This is bound to the thread where Initialize() is called. |
| 102 base::ThreadChecker thread_checker_; | 102 base::ThreadChecker thread_checker_; |
| 103 | 103 |
| 104 DISALLOW_COPY_AND_ASSIGN(Vp8Encoder); | 104 DISALLOW_COPY_AND_ASSIGN(Vp8Encoder); |
| 105 }; | 105 }; |
| 106 | 106 |
| 107 } // namespace cast | 107 } // namespace cast |
| 108 } // namespace media | 108 } // namespace media |
| 109 | 109 |
| 110 #endif // MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ | 110 #endif // MEDIA_CAST_SENDER_CODECS_VP8_VP8_ENCODER_H_ |
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