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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ | 5 #ifndef REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ |
6 #define REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ | 6 #define REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
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44 std::unique_ptr<EncodedFrame> Encode(const webrtc::DesktopFrame& frame, | 44 std::unique_ptr<EncodedFrame> Encode(const webrtc::DesktopFrame& frame, |
45 const FrameParams& params) override; | 45 const FrameParams& params) override; |
46 | 46 |
47 private: | 47 private: |
48 explicit WebrtcVideoEncoderVpx(bool use_vp9); | 48 explicit WebrtcVideoEncoderVpx(bool use_vp9); |
49 | 49 |
50 // (Re)Configures this instance to encode frames of the specified |size|, | 50 // (Re)Configures this instance to encode frames of the specified |size|, |
51 // with the configured lossless color & encoding modes. | 51 // with the configured lossless color & encoding modes. |
52 void Configure(const webrtc::DesktopSize& size); | 52 void Configure(const webrtc::DesktopSize& size); |
53 | 53 |
54 // Updates target bitrate. | 54 // Updates codec configuration. |
55 void UpdateTargetBitrate(int new_bitrate_kbps); | 55 void UpdateConfig(const FrameParams& params); |
56 | 56 |
57 // Prepares |image_| for encoding. Writes updated rectangles into | 57 // Prepares |image_| for encoding. Writes updated rectangles into |
58 // |updated_region|. | 58 // |updated_region|. |
59 void PrepareImage(const webrtc::DesktopFrame& frame, | 59 void PrepareImage(const webrtc::DesktopFrame& frame, |
60 webrtc::DesktopRegion* updated_region); | 60 webrtc::DesktopRegion* updated_region); |
61 | 61 |
| 62 // Clears active map. |
| 63 void ClearActiveMap(); |
| 64 |
62 // Updates the active map according to |updated_region|. Active map is then | 65 // Updates the active map according to |updated_region|. Active map is then |
63 // given to the encoder to speed up encoding. | 66 // given to the encoder to speed up encoding. |
64 void SetActiveMapFromRegion(const webrtc::DesktopRegion& updated_region); | 67 void SetActiveMapFromRegion(const webrtc::DesktopRegion& updated_region); |
65 | 68 |
66 // Adds areas changed in the most recent frame to |updated_region|. This | 69 // Adds areas changed in the most recent frame to |updated_region|. This |
67 // includes both content changes and areas enhanced by cyclic refresh. | 70 // includes both content changes and areas enhanced by cyclic refresh. |
68 void UpdateRegionFromActiveMap(webrtc::DesktopRegion* updated_region); | 71 void UpdateRegionFromActiveMap(webrtc::DesktopRegion* updated_region); |
69 | 72 |
70 // True if the encoder is for VP9, false for VP8. | 73 // True if the encoder is for VP9, false for VP8. |
71 const bool use_vp9_; | 74 const bool use_vp9_; |
72 | 75 |
73 // Options controlling VP9 encode quantization and color space. | 76 // Options controlling VP9 encode quantization and color space. |
74 // These are always off (false) for VP8. | 77 // These are always off (false) for VP8. |
75 bool lossless_encode_ = false; | 78 bool lossless_encode_ = false; |
76 bool lossless_color_ = false; | 79 bool lossless_color_ = false; |
77 | 80 |
78 // Holds the initialized & configured codec. | 81 // Holds the initialized & configured codec. |
79 ScopedVpxCodec codec_; | 82 ScopedVpxCodec codec_; |
80 | 83 |
81 vpx_codec_enc_cfg_t config_; | 84 vpx_codec_enc_cfg_t config_; |
82 uint32_t target_bitrate_kbps_; | |
83 | 85 |
84 // Used to generate zero-based frame timestamps. | 86 // Used to generate zero-based frame timestamps. |
85 base::TimeTicks timestamp_base_; | 87 base::TimeTicks timestamp_base_; |
86 | 88 |
87 // VPX image and buffer to hold the actual YUV planes. | 89 // VPX image and buffer to hold the actual YUV planes. |
88 std::unique_ptr<vpx_image_t> image_; | 90 std::unique_ptr<vpx_image_t> image_; |
89 std::unique_ptr<uint8_t[]> image_buffer_; | 91 std::unique_ptr<uint8_t[]> image_buffer_; |
90 | 92 |
91 // Active map used to optimize out processing of un-changed macroblocks. | 93 // Active map used to optimize out processing of un-changed macroblocks. |
92 std::unique_ptr<uint8_t[]> active_map_; | 94 std::unique_ptr<uint8_t[]> active_map_; |
93 webrtc::DesktopSize active_map_size_; | 95 webrtc::DesktopSize active_map_size_; |
94 | 96 |
95 // True if the codec wants unchanged frames to finish topping-off with. | |
96 bool encode_unchanged_frame_; | |
97 | |
98 base::DefaultTickClock default_tick_clock_; | 97 base::DefaultTickClock default_tick_clock_; |
99 base::TickClock* clock_; | 98 base::TickClock* clock_; |
100 | 99 |
101 DISALLOW_COPY_AND_ASSIGN(WebrtcVideoEncoderVpx); | 100 DISALLOW_COPY_AND_ASSIGN(WebrtcVideoEncoderVpx); |
102 }; | 101 }; |
103 | 102 |
104 } // namespace remoting | 103 } // namespace remoting |
105 | 104 |
106 #endif // REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ | 105 #endif // REMOTING_CODEC_WEBRTC_VIDEO_ENCODER_VPX_H_ |
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