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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 CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ | 5 #ifndef CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ |
6 #define CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ | 6 #define CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ |
7 | 7 |
8 #include <list> | 8 #include <list> |
9 #include <memory> | 9 #include <memory> |
10 #include <queue> | 10 #include <queue> |
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35 bool Initialize(const Config& config, | 35 bool Initialize(const Config& config, |
36 ArcVideoAccelerator::Client* client) override; | 36 ArcVideoAccelerator::Client* client) override; |
37 void SetNumberOfOutputBuffers(size_t number) override; | 37 void SetNumberOfOutputBuffers(size_t number) override; |
38 void BindSharedMemory(PortType port, | 38 void BindSharedMemory(PortType port, |
39 uint32_t index, | 39 uint32_t index, |
40 base::ScopedFD ashmem_fd, | 40 base::ScopedFD ashmem_fd, |
41 off_t offset, | 41 off_t offset, |
42 size_t length) override; | 42 size_t length) override; |
43 void BindDmabuf(PortType port, | 43 void BindDmabuf(PortType port, |
44 uint32_t index, | 44 uint32_t index, |
45 base::ScopedFD dmabuf_fd) override; | 45 base::ScopedFD dmabuf_fd, |
| 46 int32_t stride) override; |
46 void UseBuffer(PortType port, | 47 void UseBuffer(PortType port, |
47 uint32_t index, | 48 uint32_t index, |
48 const BufferMetadata& metadata) override; | 49 const BufferMetadata& metadata) override; |
49 void Reset() override; | 50 void Reset() override; |
50 void Flush() override; | 51 void Flush() override; |
51 | 52 |
52 // Implementation of the VideoDecodeAccelerator::Client interface. | 53 // Implementation of the VideoDecodeAccelerator::Client interface. |
53 void ProvidePictureBuffers(uint32_t requested_num_of_buffers, | 54 void ProvidePictureBuffers(uint32_t requested_num_of_buffers, |
54 uint32_t textures_per_buffer, | 55 uint32_t textures_per_buffer, |
55 const gfx::Size& dimensions, | 56 const gfx::Size& dimensions, |
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72 InputRecord(int32_t bitstream_buffer_id, | 73 InputRecord(int32_t bitstream_buffer_id, |
73 uint32_t buffer_index, | 74 uint32_t buffer_index, |
74 int64_t timestamp); | 75 int64_t timestamp); |
75 }; | 76 }; |
76 | 77 |
77 // The information about the shared memory used as an input buffer. | 78 // The information about the shared memory used as an input buffer. |
78 struct InputBufferInfo { | 79 struct InputBufferInfo { |
79 // The file handle to access the buffer. It is owned by this class and | 80 // The file handle to access the buffer. It is owned by this class and |
80 // should be closed after use. | 81 // should be closed after use. |
81 base::ScopedFD handle; | 82 base::ScopedFD handle; |
82 off_t offset; | 83 |
83 size_t length; | 84 // The offset of the payload to the beginning of the shared memory. |
| 85 off_t offset = 0; |
| 86 |
| 87 // The size of the payload in bytes. |
| 88 size_t length = 0; |
84 | 89 |
85 InputBufferInfo(); | 90 InputBufferInfo(); |
86 InputBufferInfo(InputBufferInfo&& other); | 91 InputBufferInfo(InputBufferInfo&& other); |
87 ~InputBufferInfo(); | 92 ~InputBufferInfo(); |
88 }; | 93 }; |
89 | 94 |
| 95 // The information about the dmabuf used as an output buffer. |
| 96 struct OutputBufferInfo { |
| 97 base::ScopedFD handle; |
| 98 int32_t stride = 0; // In bytes. |
| 99 |
| 100 OutputBufferInfo(); |
| 101 OutputBufferInfo(OutputBufferInfo&& other); |
| 102 ~OutputBufferInfo(); |
| 103 }; |
| 104 |
90 // Helper function to validate |port| and |index|. | 105 // Helper function to validate |port| and |index|. |
91 bool ValidatePortAndIndex(PortType port, uint32_t index); | 106 bool ValidatePortAndIndex(PortType port, uint32_t index) const; |
| 107 |
| 108 // Helper function to verify the length of stride is legal. |
| 109 bool VerifyStride(const base::ScopedFD& fd, int32_t stride) const; |
92 | 110 |
93 // Creates an InputRecord for the given |bitstream_buffer_id|. The | 111 // Creates an InputRecord for the given |bitstream_buffer_id|. The |
94 // |buffer_index| is the index of the associated input buffer. The |timestamp| | 112 // |buffer_index| is the index of the associated input buffer. The |timestamp| |
95 // is the time the video frame should be displayed. | 113 // is the time the video frame should be displayed. |
96 void CreateInputRecord(int32_t bitstream_buffer_id, | 114 void CreateInputRecord(int32_t bitstream_buffer_id, |
97 uint32_t buffer_index, | 115 uint32_t buffer_index, |
98 int64_t timestamp); | 116 int64_t timestamp); |
99 | 117 |
100 // Finds the InputRecord which matches to given |bitstream_buffer_id|. | 118 // Finds the InputRecord which matches to given |bitstream_buffer_id|. |
101 // Returns |nullptr| if it cannot be found. | 119 // Returns |nullptr| if it cannot be found. |
102 InputRecord* FindInputRecord(int32_t bitstream_buffer_id); | 120 InputRecord* FindInputRecord(int32_t bitstream_buffer_id); |
103 | 121 |
104 std::unique_ptr<media::VideoDecodeAccelerator> vda_; | 122 std::unique_ptr<media::VideoDecodeAccelerator> vda_; |
105 | 123 |
106 // It's safe to use the pointer here, the life cycle of the |arc_client_| | 124 // It's safe to use the pointer here, the life cycle of the |arc_client_| |
107 // is longer than this ArcGpuVideoDecodeAccelerator. | 125 // is longer than this ArcGpuVideoDecodeAccelerator. |
108 ArcVideoAccelerator::Client* arc_client_; | 126 ArcVideoAccelerator::Client* arc_client_; |
109 | 127 |
110 // The next ID for the bitstream buffer, started from 0. | 128 // The next ID for the bitstream buffer, started from 0. |
111 int32_t next_bitstream_buffer_id_; | 129 int32_t next_bitstream_buffer_id_; |
112 | 130 |
113 gfx::Size coded_size_; | 131 gfx::Size coded_size_; |
| 132 media::VideoPixelFormat output_pixel_format_; |
114 | 133 |
115 // A list of most recent |kMaxNumberOfInputRecord| InputRecords. | 134 // A list of most recent |kMaxNumberOfInputRecord| InputRecords. |
116 // |kMaxNumberOfInputRecord| is defined in the cc file. | 135 // |kMaxNumberOfInputRecord| is defined in the cc file. |
117 std::list<InputRecord> input_records_; | 136 std::list<InputRecord> input_records_; |
118 | 137 |
119 // The details of the shared memory of each input buffers. | 138 // The details of the shared memory of each input buffers. |
120 std::vector<InputBufferInfo> input_buffer_info_; | 139 std::vector<InputBufferInfo> input_buffer_info_; |
121 | 140 |
122 // To keep those output buffers which have been bound by bindDmabuf() but not | 141 // To keep those output buffers which have been bound by bindDmabuf() but |
123 // be used yet. Will call VDA::ImportBufferForPicture() when those buffers are | 142 // haven't been passed to VDA yet. Will call VDA::ImportBufferForPicture() |
124 // used for the first time. | 143 // when those buffers are used for the first time. |
125 std::vector<base::ScopedFD> buffers_pending_import_; | 144 std::vector<OutputBufferInfo> buffers_pending_import_; |
126 | 145 |
127 base::ThreadChecker thread_checker_; | 146 base::ThreadChecker thread_checker_; |
128 size_t output_buffer_size_; | 147 size_t output_buffer_size_; |
129 | 148 |
130 gpu::GpuPreferences gpu_preferences_; | 149 gpu::GpuPreferences gpu_preferences_; |
131 | 150 |
132 DISALLOW_COPY_AND_ASSIGN(ArcGpuVideoDecodeAccelerator); | 151 DISALLOW_COPY_AND_ASSIGN(ArcGpuVideoDecodeAccelerator); |
133 }; | 152 }; |
134 | 153 |
135 } // namespace arc | 154 } // namespace arc |
136 } // namespace chromeos | 155 } // namespace chromeos |
137 | 156 |
138 #endif // CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ | 157 #endif // CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_ |
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