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Side by Side Diff: media/gpu/v4l2_image_processor.h

Issue 1939683002: Test X11 header pollution (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 7 months ago
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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 CONTENT_COMMON_GPU_MEDIA_V4L2_IMAGE_PROCESSOR_H_ 5 #ifndef MEDIA_GPU_V4L2_IMAGE_PROCESSOR_H_
6 #define CONTENT_COMMON_GPU_MEDIA_V4L2_IMAGE_PROCESSOR_H_ 6 #define MEDIA_GPU_V4L2_IMAGE_PROCESSOR_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 #include <stdint.h> 9 #include <stdint.h>
10 10
11 #include <memory> 11 #include <memory>
12 #include <queue> 12 #include <queue>
13 #include <vector> 13 #include <vector>
14 14
15 #include "base/macros.h" 15 #include "base/macros.h"
16 #include "base/memory/linked_ptr.h" 16 #include "base/memory/linked_ptr.h"
17 #include "base/memory/ref_counted.h" 17 #include "base/memory/ref_counted.h"
18 #include "base/memory/weak_ptr.h" 18 #include "base/memory/weak_ptr.h"
19 #include "base/threading/thread.h" 19 #include "base/threading/thread.h"
20 #include "content/common/content_export.h"
21 #include "content/common/gpu/media/v4l2_device.h"
22 #include "media/base/video_frame.h" 20 #include "media/base/video_frame.h"
21 #include "media/gpu/media_gpu_export.h"
22 #include "media/gpu/v4l2_device.h"
23 23
24 namespace content { 24 namespace media {
25 25
26 // Handles image processing accelerators that expose a V4L2 memory-to-memory 26 // Handles image processing accelerators that expose a V4L2 memory-to-memory
27 // interface. The threading model of this class is the same as for other V4L2 27 // interface. The threading model of this class is the same as for other V4L2
28 // hardware accelerators (see V4L2VideoDecodeAccelerator) for more details. 28 // hardware accelerators (see V4L2VideoDecodeAccelerator) for more details.
29 class CONTENT_EXPORT V4L2ImageProcessor { 29 class MEDIA_GPU_EXPORT V4L2ImageProcessor {
30 public: 30 public:
31 explicit V4L2ImageProcessor(const scoped_refptr<V4L2Device>& device); 31 explicit V4L2ImageProcessor(const scoped_refptr<V4L2Device>& device);
32 virtual ~V4L2ImageProcessor(); 32 virtual ~V4L2ImageProcessor();
33 33
34 // Initializes the processor to convert from |input_format| to |output_format| 34 // Initializes the processor to convert from |input_format| to |output_format|
35 // and/or scale from |input_visible_size| to |output_visible_size|. 35 // and/or scale from |input_visible_size| to |output_visible_size|.
36 // Request the input buffers to be of at least |input_allocated_size| and the 36 // Request the input buffers to be of at least |input_allocated_size| and the
37 // output buffers to be of at least |output_allocated_size|. The number of 37 // output buffers to be of at least |output_allocated_size|. The number of
38 // input buffers and output buffers will be |num_buffers|. Provided |error_cb| 38 // input buffers and output buffers will be |num_buffers|. Provided |error_cb|
39 // will be called if an error occurs. Return true if the requested 39 // will be called if an error occurs. Return true if the requested
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173 // V4L2 device in use. 173 // V4L2 device in use.
174 scoped_refptr<V4L2Device> device_; 174 scoped_refptr<V4L2Device> device_;
175 175
176 // Thread to communicate with the device on. 176 // Thread to communicate with the device on.
177 base::Thread device_thread_; 177 base::Thread device_thread_;
178 // Thread used to poll the V4L2 for events only. 178 // Thread used to poll the V4L2 for events only.
179 base::Thread device_poll_thread_; 179 base::Thread device_poll_thread_;
180 180
181 // All the below members are to be accessed from device_thread_ only 181 // All the below members are to be accessed from device_thread_ only
182 // (if it's running). 182 // (if it's running).
183 std::queue<linked_ptr<JobRecord> > input_queue_; 183 std::queue<linked_ptr<JobRecord>> input_queue_;
184 std::queue<linked_ptr<JobRecord> > running_jobs_; 184 std::queue<linked_ptr<JobRecord>> running_jobs_;
185 185
186 // Input queue state. 186 // Input queue state.
187 bool input_streamon_; 187 bool input_streamon_;
188 // Number of input buffers enqueued to the device. 188 // Number of input buffers enqueued to the device.
189 int input_buffer_queued_count_; 189 int input_buffer_queued_count_;
190 // Input buffers ready to use; LIFO since we don't care about ordering. 190 // Input buffers ready to use; LIFO since we don't care about ordering.
191 std::vector<int> free_input_buffers_; 191 std::vector<int> free_input_buffers_;
192 // Mapping of int index to an input buffer record. 192 // Mapping of int index to an input buffer record.
193 std::vector<InputRecord> input_buffer_map_; 193 std::vector<InputRecord> input_buffer_map_;
194 194
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211 // thread to the device thread should use base::Unretained(this), 211 // thread to the device thread should use base::Unretained(this),
212 // and tasks posted the other way should use |weak_this_|. 212 // and tasks posted the other way should use |weak_this_|.
213 base::WeakPtr<V4L2ImageProcessor> weak_this_; 213 base::WeakPtr<V4L2ImageProcessor> weak_this_;
214 214
215 // Weak factory for producing weak pointers on the child thread. 215 // Weak factory for producing weak pointers on the child thread.
216 base::WeakPtrFactory<V4L2ImageProcessor> weak_this_factory_; 216 base::WeakPtrFactory<V4L2ImageProcessor> weak_this_factory_;
217 217
218 DISALLOW_COPY_AND_ASSIGN(V4L2ImageProcessor); 218 DISALLOW_COPY_AND_ASSIGN(V4L2ImageProcessor);
219 }; 219 };
220 220
221 } // namespace content 221 } // namespace media
222 222
223 #endif // CONTENT_COMMON_GPU_MEDIA_V4L2_IMAGE_PROCESSOR_H_ 223 #endif // MEDIA_GPU_V4L2_IMAGE_PROCESSOR_H_
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