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Side by Side Diff: content/browser/renderer_host/media/video_capture_buffer_pool.h

Issue 1204063005: Reland: Video Capture: extract storage info from pixel format in VideoCaptureFormat. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: dcheng@ nit on DCHECK_EQ(expected, actual) Created 5 years, 5 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_ 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_
7 7
8 #include <map> 8 #include <map>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
(...skipping 66 matching lines...) Expand 10 before | Expand all | Expand 10 after
77 // 77 //
78 // If successful, the reserved buffer remains reserved (and writable by the 78 // If successful, the reserved buffer remains reserved (and writable by the
79 // producer) until ownership is transferred either to the consumer via 79 // producer) until ownership is transferred either to the consumer via
80 // HoldForConsumers(), or back to the pool with 80 // HoldForConsumers(), or back to the pool with
81 // RelinquishProducerReservation(). 81 // RelinquishProducerReservation().
82 // 82 //
83 // On occasion, this call will decide to free an old buffer to make room for a 83 // On occasion, this call will decide to free an old buffer to make room for a
84 // new allocation at a larger size. If so, the ID of the destroyed buffer is 84 // new allocation at a larger size. If so, the ID of the destroyed buffer is
85 // returned via |buffer_id_to_drop|. 85 // returned via |buffer_id_to_drop|.
86 int ReserveForProducer(media::VideoPixelFormat format, 86 int ReserveForProducer(media::VideoPixelFormat format,
87 media::VideoPixelStorage storage,
87 const gfx::Size& dimensions, 88 const gfx::Size& dimensions,
88 int* buffer_id_to_drop); 89 int* buffer_id_to_drop);
89 90
90 // Indicate that a buffer held for the producer should be returned back to the 91 // Indicate that a buffer held for the producer should be returned back to the
91 // pool without passing on to the consumer. This effectively is the opposite 92 // pool without passing on to the consumer. This effectively is the opposite
92 // of ReserveForProducer(). 93 // of ReserveForProducer().
93 void RelinquishProducerReservation(int buffer_id); 94 void RelinquishProducerReservation(int buffer_id);
94 95
95 // Transfer a buffer from producer to consumer ownership. 96 // Transfer a buffer from producer to consumer ownership.
96 // |buffer_id| must be a buffer index previously returned by 97 // |buffer_id| must be a buffer index previously returned by
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110 class GpuMemoryBufferTracker; 111 class GpuMemoryBufferTracker;
111 class SharedMemTracker; 112 class SharedMemTracker;
112 // Generic class to keep track of the state of a given mappable resource. Each 113 // Generic class to keep track of the state of a given mappable resource. Each
113 // Tracker carries indication of pixel format and storage type. 114 // Tracker carries indication of pixel format and storage type.
114 class Tracker { 115 class Tracker {
115 public: 116 public:
116 static scoped_ptr<Tracker> CreateTracker(bool use_gmb); 117 static scoped_ptr<Tracker> CreateTracker(bool use_gmb);
117 118
118 Tracker() 119 Tracker()
119 : pixel_count_(0), held_by_producer_(false), consumer_hold_count_(0) {} 120 : pixel_count_(0), held_by_producer_(false), consumer_hold_count_(0) {}
120 virtual bool Init(media::VideoFrame::Format format, 121 virtual bool Init(media::VideoPixelFormat format,
121 media::VideoFrame::StorageType storage_type, 122 media::VideoPixelStorage storage_type,
122 const gfx::Size& dimensions) = 0; 123 const gfx::Size& dimensions) = 0;
123 virtual ~Tracker(); 124 virtual ~Tracker();
124 125
125 size_t pixel_count() const { return pixel_count_; } 126 size_t pixel_count() const { return pixel_count_; }
126 void set_pixel_count(size_t count) { pixel_count_ = count; } 127 void set_pixel_count(size_t count) { pixel_count_ = count; }
127 media::VideoFrame::Format pixel_format() const { return pixel_format_; } 128 media::VideoPixelFormat pixel_format() const { return pixel_format_; }
128 void set_pixel_format(media::VideoFrame::Format format) { 129 void set_pixel_format(media::VideoPixelFormat format) {
129 pixel_format_ = format; 130 pixel_format_ = format;
130 } 131 }
131 media::VideoFrame::StorageType storage_type() const { 132 media::VideoPixelStorage storage_type() const { return storage_type_; }
132 return storage_type_; 133 void set_storage_type(media::VideoPixelStorage storage_type) {
133 }
134 void set_storage_type(media::VideoFrame::StorageType storage_type) {
135 storage_type_ = storage_type; 134 storage_type_ = storage_type;
136 } 135 }
137 bool held_by_producer() const { return held_by_producer_; } 136 bool held_by_producer() const { return held_by_producer_; }
138 void set_held_by_producer(bool value) { held_by_producer_ = value; } 137 void set_held_by_producer(bool value) { held_by_producer_ = value; }
139 int consumer_hold_count() const { return consumer_hold_count_; } 138 int consumer_hold_count() const { return consumer_hold_count_; }
140 void set_consumer_hold_count(int value) { consumer_hold_count_ = value; } 139 void set_consumer_hold_count(int value) { consumer_hold_count_ = value; }
141 140
142 // Returns a handle to the underlying storage, be that a block of Shared 141 // Returns a handle to the underlying storage, be that a block of Shared
143 // Memory, or a GpuMemoryBuffer. 142 // Memory, or a GpuMemoryBuffer.
144 virtual scoped_ptr<BufferHandle> GetBufferHandle() = 0; 143 virtual scoped_ptr<BufferHandle> GetBufferHandle() = 0;
145 // The actual size of the underlying backing resource. 144 // The actual size of the underlying backing resource.
146 virtual size_t mapped_size() const = 0; 145 virtual size_t mapped_size() const = 0;
147 146
148 virtual bool ShareToProcess(base::ProcessHandle process_handle, 147 virtual bool ShareToProcess(base::ProcessHandle process_handle,
149 base::SharedMemoryHandle* new_handle) = 0; 148 base::SharedMemoryHandle* new_handle) = 0;
150 149
151 private: 150 private:
152 size_t pixel_count_; 151 size_t pixel_count_;
153 media::VideoFrame::Format pixel_format_; 152 media::VideoPixelFormat pixel_format_;
154 media::VideoFrame::StorageType storage_type_; 153 media::VideoPixelStorage storage_type_;
155 // Indicates whether this Tracker is currently referenced by the producer. 154 // Indicates whether this Tracker is currently referenced by the producer.
156 bool held_by_producer_; 155 bool held_by_producer_;
157 // Number of consumer processes which hold this Tracker. 156 // Number of consumer processes which hold this Tracker.
158 int consumer_hold_count_; 157 int consumer_hold_count_;
159 }; 158 };
160 159
161 friend class base::RefCountedThreadSafe<VideoCaptureBufferPool>; 160 friend class base::RefCountedThreadSafe<VideoCaptureBufferPool>;
162 virtual ~VideoCaptureBufferPool(); 161 virtual ~VideoCaptureBufferPool();
163 162
164 int ReserveForProducerInternal(media::VideoPixelFormat format, 163 int ReserveForProducerInternal(media::VideoPixelFormat format,
164 media::VideoPixelStorage storage,
165 const gfx::Size& dimensions, 165 const gfx::Size& dimensions,
166 int* tracker_id_to_drop); 166 int* tracker_id_to_drop);
167 167
168 Tracker* GetTracker(int buffer_id); 168 Tracker* GetTracker(int buffer_id);
169 169
170 // The max number of buffers that the pool is allowed to have at any moment. 170 // The max number of buffers that the pool is allowed to have at any moment.
171 const int count_; 171 const int count_;
172 172
173 // Protects everything below it. 173 // Protects everything below it.
174 mutable base::Lock lock_; 174 mutable base::Lock lock_;
175 175
176 // The ID of the next buffer. 176 // The ID of the next buffer.
177 int next_buffer_id_; 177 int next_buffer_id_;
178 178
179 // The buffers, indexed by the first parameter, a buffer id. 179 // The buffers, indexed by the first parameter, a buffer id.
180 using TrackerMap = std::map<int, Tracker*>; 180 using TrackerMap = std::map<int, Tracker*>;
181 TrackerMap trackers_; 181 TrackerMap trackers_;
182 182
183 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureBufferPool); 183 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureBufferPool);
184 }; 184 };
185 185
186 } // namespace content 186 } // namespace content
187 187
188 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_ 188 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_BUFFER_POOL_H_
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