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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_EXTERNAL_VIDEO_ENCODER_H_ | 5 #ifndef MEDIA_CAST_SENDER_EXTERNAL_VIDEO_ENCODER_H_ |
6 #define MEDIA_CAST_SENDER_EXTERNAL_VIDEO_ENCODER_H_ | 6 #define MEDIA_CAST_SENDER_EXTERNAL_VIDEO_ENCODER_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
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21 namespace media { | 21 namespace media { |
22 namespace cast { | 22 namespace cast { |
23 | 23 |
24 // Cast MAIN thread proxy to the internal media::VideoEncodeAccelerator | 24 // Cast MAIN thread proxy to the internal media::VideoEncodeAccelerator |
25 // implementation running on a separate thread. Encodes media::VideoFrames and | 25 // implementation running on a separate thread. Encodes media::VideoFrames and |
26 // emits media::cast::EncodedFrames. | 26 // emits media::cast::EncodedFrames. |
27 class ExternalVideoEncoder : public VideoEncoder { | 27 class ExternalVideoEncoder : public VideoEncoder { |
28 public: | 28 public: |
29 // Returns true if the current platform and system configuration supports | 29 // Returns true if the current platform and system configuration supports |
30 // using ExternalVideoEncoder with the given |video_config|. | 30 // using ExternalVideoEncoder with the given |video_config|. |
31 static bool IsSupported(const FrameSenderConfig& video_config); | 31 static bool IsSupported(const VideoSenderConfig& video_config); |
32 | 32 |
33 ExternalVideoEncoder( | 33 ExternalVideoEncoder( |
34 const scoped_refptr<CastEnvironment>& cast_environment, | 34 const scoped_refptr<CastEnvironment>& cast_environment, |
35 const FrameSenderConfig& video_config, | 35 const VideoSenderConfig& video_config, |
36 const gfx::Size& frame_size, | 36 const gfx::Size& frame_size, |
37 FrameId first_frame_id, | 37 FrameId first_frame_id, |
38 const StatusChangeCallback& status_change_cb, | 38 const StatusChangeCallback& status_change_cb, |
39 const CreateVideoEncodeAcceleratorCallback& create_vea_cb, | 39 const CreateVideoEncodeAcceleratorCallback& create_vea_cb, |
40 const CreateVideoEncodeMemoryCallback& create_video_encode_memory_cb); | 40 const CreateVideoEncodeMemoryCallback& create_video_encode_memory_cb); |
41 | 41 |
42 ~ExternalVideoEncoder() final; | 42 ~ExternalVideoEncoder() final; |
43 | 43 |
44 // VideoEncoder implementation. | 44 // VideoEncoder implementation. |
45 bool EncodeVideoFrame( | 45 bool EncodeVideoFrame( |
46 const scoped_refptr<media::VideoFrame>& video_frame, | 46 const scoped_refptr<media::VideoFrame>& video_frame, |
47 const base::TimeTicks& reference_time, | 47 const base::TimeTicks& reference_time, |
48 const FrameEncodedCallback& frame_encoded_callback) final; | 48 const FrameEncodedCallback& frame_encoded_callback) final; |
49 void SetBitRate(int new_bit_rate) final; | 49 void SetBitRate(int new_bit_rate) final; |
50 void GenerateKeyFrame() final; | 50 void GenerateKeyFrame() final; |
51 | 51 |
52 private: | 52 private: |
53 class VEAClientImpl; | 53 class VEAClientImpl; |
54 | 54 |
55 // Method invoked by the CreateVideoEncodeAcceleratorCallback to construct a | 55 // Method invoked by the CreateVideoEncodeAcceleratorCallback to construct a |
56 // VEAClientImpl to own and interface with a new |vea|. Upon return, | 56 // VEAClientImpl to own and interface with a new |vea|. Upon return, |
57 // |client_| holds a reference to the new VEAClientImpl. | 57 // |client_| holds a reference to the new VEAClientImpl. |
58 void OnCreateVideoEncodeAccelerator( | 58 void OnCreateVideoEncodeAccelerator( |
59 const FrameSenderConfig& video_config, | 59 const VideoSenderConfig& video_config, |
60 FrameId first_frame_id, | 60 FrameId first_frame_id, |
61 const StatusChangeCallback& status_change_cb, | 61 const StatusChangeCallback& status_change_cb, |
62 scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner, | 62 scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner, |
63 std::unique_ptr<media::VideoEncodeAccelerator> vea); | 63 std::unique_ptr<media::VideoEncodeAccelerator> vea); |
64 | 64 |
65 const scoped_refptr<CastEnvironment> cast_environment_; | 65 const scoped_refptr<CastEnvironment> cast_environment_; |
66 const CreateVideoEncodeMemoryCallback create_video_encode_memory_cb_; | 66 const CreateVideoEncodeMemoryCallback create_video_encode_memory_cb_; |
67 | 67 |
68 // The size of the visible region of the video frames to be encoded. | 68 // The size of the visible region of the video frames to be encoded. |
69 const gfx::Size frame_size_; | 69 const gfx::Size frame_size_; |
70 | 70 |
71 int bit_rate_; | 71 int bit_rate_; |
72 bool key_frame_requested_; | 72 bool key_frame_requested_; |
73 | 73 |
74 scoped_refptr<VEAClientImpl> client_; | 74 scoped_refptr<VEAClientImpl> client_; |
75 | 75 |
76 // Provides a weak pointer for the OnCreateVideoEncoderAccelerator() callback. | 76 // Provides a weak pointer for the OnCreateVideoEncoderAccelerator() callback. |
77 // NOTE: Weak pointers must be invalidated before all other member variables. | 77 // NOTE: Weak pointers must be invalidated before all other member variables. |
78 base::WeakPtrFactory<ExternalVideoEncoder> weak_factory_; | 78 base::WeakPtrFactory<ExternalVideoEncoder> weak_factory_; |
79 | 79 |
80 DISALLOW_COPY_AND_ASSIGN(ExternalVideoEncoder); | 80 DISALLOW_COPY_AND_ASSIGN(ExternalVideoEncoder); |
81 }; | 81 }; |
82 | 82 |
83 // An implementation of SizeAdaptableVideoEncoderBase to proxy for | 83 // An implementation of SizeAdaptableVideoEncoderBase to proxy for |
84 // ExternalVideoEncoder instances. | 84 // ExternalVideoEncoder instances. |
85 class SizeAdaptableExternalVideoEncoder : public SizeAdaptableVideoEncoderBase { | 85 class SizeAdaptableExternalVideoEncoder : public SizeAdaptableVideoEncoderBase { |
86 public: | 86 public: |
87 SizeAdaptableExternalVideoEncoder( | 87 SizeAdaptableExternalVideoEncoder( |
88 const scoped_refptr<CastEnvironment>& cast_environment, | 88 const scoped_refptr<CastEnvironment>& cast_environment, |
89 const FrameSenderConfig& video_config, | 89 const VideoSenderConfig& video_config, |
90 const StatusChangeCallback& status_change_cb, | 90 const StatusChangeCallback& status_change_cb, |
91 const CreateVideoEncodeAcceleratorCallback& create_vea_cb, | 91 const CreateVideoEncodeAcceleratorCallback& create_vea_cb, |
92 const CreateVideoEncodeMemoryCallback& create_video_encode_memory_cb); | 92 const CreateVideoEncodeMemoryCallback& create_video_encode_memory_cb); |
93 | 93 |
94 ~SizeAdaptableExternalVideoEncoder() final; | 94 ~SizeAdaptableExternalVideoEncoder() final; |
95 | 95 |
96 protected: | 96 protected: |
97 std::unique_ptr<VideoEncoder> CreateEncoder() final; | 97 std::unique_ptr<VideoEncoder> CreateEncoder() final; |
98 | 98 |
99 private: | 99 private: |
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157 std::unique_ptr<uint8_t[]> last_frame_pixel_buffer_; | 157 std::unique_ptr<uint8_t[]> last_frame_pixel_buffer_; |
158 gfx::Size last_frame_size_; | 158 gfx::Size last_frame_size_; |
159 | 159 |
160 DISALLOW_COPY_AND_ASSIGN(QuantizerEstimator); | 160 DISALLOW_COPY_AND_ASSIGN(QuantizerEstimator); |
161 }; | 161 }; |
162 | 162 |
163 } // namespace cast | 163 } // namespace cast |
164 } // namespace media | 164 } // namespace media |
165 | 165 |
166 #endif // MEDIA_CAST_SENDER_EXTERNAL_VIDEO_ENCODER_H_ | 166 #endif // MEDIA_CAST_SENDER_EXTERNAL_VIDEO_ENCODER_H_ |
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