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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 MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ | 5 #ifndef MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ |
6 #define MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ | 6 #define MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <memory> | 9 #include <memory> |
10 | 10 |
11 #include "base/bind.h" | 11 #include "base/bind.h" |
12 #include "base/mac/scoped_cftyperef.h" | 12 #include "base/mac/scoped_cftyperef.h" |
13 #include "base/memory/weak_ptr.h" | 13 #include "base/memory/weak_ptr.h" |
14 #include "base/single_thread_task_runner.h" | 14 #include "base/single_thread_task_runner.h" |
15 #include "base/threading/thread.h" | 15 #include "base/threading/thread.h" |
16 #include "base/threading/thread_checker.h" | 16 #include "base/threading/thread_checker.h" |
17 #include "media/base/mac/videotoolbox_glue.h" | |
18 #include "media/base/mac/videotoolbox_helpers.h" | 17 #include "media/base/mac/videotoolbox_helpers.h" |
19 #include "media/gpu/media_gpu_export.h" | 18 #include "media/gpu/media_gpu_export.h" |
20 #include "media/video/video_encode_accelerator.h" | 19 #include "media/video/video_encode_accelerator.h" |
21 #include "third_party/webrtc/common_video/include/bitrate_adjuster.h" | 20 #include "third_party/webrtc/common_video/include/bitrate_adjuster.h" |
22 | 21 |
23 namespace media { | 22 namespace media { |
24 | 23 |
25 // VideoToolbox.framework implementation of the VideoEncodeAccelerator | 24 // VideoToolbox.framework implementation of the VideoEncodeAccelerator |
26 // interface for MacOSX. VideoToolbox makes no guarantees that it is thread | 25 // interface for MacOSX. VideoToolbox makes no guarantees that it is thread |
27 // safe, so this object is pinned to the thread on which it is constructed. | 26 // safe, so this object is pinned to the thread on which it is constructed. |
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39 uint32_t initial_bitrate, | 38 uint32_t initial_bitrate, |
40 Client* client) override; | 39 Client* client) override; |
41 void Encode(const scoped_refptr<VideoFrame>& frame, | 40 void Encode(const scoped_refptr<VideoFrame>& frame, |
42 bool force_keyframe) override; | 41 bool force_keyframe) override; |
43 void UseOutputBitstreamBuffer(const BitstreamBuffer& buffer) override; | 42 void UseOutputBitstreamBuffer(const BitstreamBuffer& buffer) override; |
44 void RequestEncodingParametersChange(uint32_t bitrate, | 43 void RequestEncodingParametersChange(uint32_t bitrate, |
45 uint32_t framerate) override; | 44 uint32_t framerate) override; |
46 void Destroy() override; | 45 void Destroy() override; |
47 | 46 |
48 private: | 47 private: |
49 using CMSampleBufferRef = CoreMediaGlue::CMSampleBufferRef; | |
50 using VTCompressionSessionRef = VideoToolboxGlue::VTCompressionSessionRef; | |
51 using VTEncodeInfoFlags = VideoToolboxGlue::VTEncodeInfoFlags; | |
52 | |
53 // Holds the associated data of a video frame being processed. | 48 // Holds the associated data of a video frame being processed. |
54 struct InProgressFrameEncode; | 49 struct InProgressFrameEncode; |
55 | 50 |
56 // Holds output buffers coming from the encoder. | 51 // Holds output buffers coming from the encoder. |
57 struct EncodeOutput; | 52 struct EncodeOutput; |
58 | 53 |
59 // Holds output buffers coming from the client ready to be filled. | 54 // Holds output buffers coming from the client ready to be filled. |
60 struct BitstreamBufferRef; | 55 struct BitstreamBufferRef; |
61 | 56 |
62 // Encoding tasks to be run on |encoder_thread_|. | 57 // Encoding tasks to be run on |encoder_thread_|. |
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100 bool require_hw_encoding); | 95 bool require_hw_encoding); |
101 | 96 |
102 // Configure the current compression session using current encoder settings. | 97 // Configure the current compression session using current encoder settings. |
103 bool ConfigureCompressionSession(); | 98 bool ConfigureCompressionSession(); |
104 | 99 |
105 // Destroy the current compression session if any. Blocks until all pending | 100 // Destroy the current compression session if any. Blocks until all pending |
106 // frames have been flushed out (similar to EmitFrames without doing any | 101 // frames have been flushed out (similar to EmitFrames without doing any |
107 // encoding work). | 102 // encoding work). |
108 void DestroyCompressionSession(); | 103 void DestroyCompressionSession(); |
109 | 104 |
110 // VideoToolboxGlue provides access to VideoToolbox at runtime. | |
111 const VideoToolboxGlue* videotoolbox_glue_; | |
112 base::ScopedCFTypeRef<VTCompressionSessionRef> compression_session_; | 105 base::ScopedCFTypeRef<VTCompressionSessionRef> compression_session_; |
113 | 106 |
114 gfx::Size input_visible_size_; | 107 gfx::Size input_visible_size_; |
115 size_t bitstream_buffer_size_; | 108 size_t bitstream_buffer_size_; |
116 int32_t frame_rate_; | 109 int32_t frame_rate_; |
117 int32_t initial_bitrate_; | 110 int32_t initial_bitrate_; |
118 int32_t target_bitrate_; | 111 int32_t target_bitrate_; |
119 int32_t encoder_set_bitrate_; | 112 int32_t encoder_set_bitrate_; |
120 | 113 |
121 // Bitrate adjuster used to fix VideoToolbox's inconsistent bitrate issues. | 114 // Bitrate adjuster used to fix VideoToolbox's inconsistent bitrate issues. |
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149 // other destructors run. | 142 // other destructors run. |
150 base::WeakPtr<VTVideoEncodeAccelerator> encoder_weak_ptr_; | 143 base::WeakPtr<VTVideoEncodeAccelerator> encoder_weak_ptr_; |
151 base::WeakPtrFactory<VTVideoEncodeAccelerator> encoder_task_weak_factory_; | 144 base::WeakPtrFactory<VTVideoEncodeAccelerator> encoder_task_weak_factory_; |
152 | 145 |
153 DISALLOW_COPY_AND_ASSIGN(VTVideoEncodeAccelerator); | 146 DISALLOW_COPY_AND_ASSIGN(VTVideoEncodeAccelerator); |
154 }; | 147 }; |
155 | 148 |
156 } // namespace media | 149 } // namespace media |
157 | 150 |
158 #endif // MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ | 151 #endif // MEDIA_GPU_VT_VIDEO_ENCODE_ACCELERATOR_MAC_H_ |
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