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1 /* | 1 /* |
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 * | 9 * |
10 */ | 10 */ |
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91 } | 91 } |
92 return num_buffers_in_use; | 92 return num_buffers_in_use; |
93 } | 93 } |
94 | 94 |
95 void Vp9FrameBufferPool::ClearPool() { | 95 void Vp9FrameBufferPool::ClearPool() { |
96 rtc::CritScope cs(&buffers_lock_); | 96 rtc::CritScope cs(&buffers_lock_); |
97 allocated_buffers_.clear(); | 97 allocated_buffers_.clear(); |
98 } | 98 } |
99 | 99 |
100 // static | 100 // static |
101 int32 Vp9FrameBufferPool::VpxGetFrameBuffer(void* user_priv, | 101 int32_t Vp9FrameBufferPool::VpxGetFrameBuffer(void* user_priv, |
102 size_t min_size, | 102 size_t min_size, |
103 vpx_codec_frame_buffer* fb) { | 103 vpx_codec_frame_buffer* fb) { |
104 RTC_DCHECK(user_priv); | 104 RTC_DCHECK(user_priv); |
105 RTC_DCHECK(fb); | 105 RTC_DCHECK(fb); |
106 Vp9FrameBufferPool* pool = static_cast<Vp9FrameBufferPool*>(user_priv); | 106 Vp9FrameBufferPool* pool = static_cast<Vp9FrameBufferPool*>(user_priv); |
107 | 107 |
108 rtc::scoped_refptr<Vp9FrameBuffer> buffer = pool->GetFrameBuffer(min_size); | 108 rtc::scoped_refptr<Vp9FrameBuffer> buffer = pool->GetFrameBuffer(min_size); |
109 fb->data = buffer->GetData(); | 109 fb->data = buffer->GetData(); |
110 fb->size = buffer->GetDataSize(); | 110 fb->size = buffer->GetDataSize(); |
111 // Store Vp9FrameBuffer* in |priv| for use in VpxReleaseFrameBuffer. | 111 // Store Vp9FrameBuffer* in |priv| for use in VpxReleaseFrameBuffer. |
112 // This also makes vpx_codec_get_frame return images with their |fb_priv| set | 112 // This also makes vpx_codec_get_frame return images with their |fb_priv| set |
113 // to |buffer| which is important for external reference counting. | 113 // to |buffer| which is important for external reference counting. |
114 // Release from refptr so that the buffer's |ref_count_| remains 1 when | 114 // Release from refptr so that the buffer's |ref_count_| remains 1 when |
115 // |buffer| goes out of scope. | 115 // |buffer| goes out of scope. |
116 fb->priv = static_cast<void*>(buffer.release()); | 116 fb->priv = static_cast<void*>(buffer.release()); |
117 return 0; | 117 return 0; |
118 } | 118 } |
119 | 119 |
120 // static | 120 // static |
121 int32 Vp9FrameBufferPool::VpxReleaseFrameBuffer(void* user_priv, | 121 int32_t Vp9FrameBufferPool::VpxReleaseFrameBuffer(void* user_priv, |
122 vpx_codec_frame_buffer* fb) { | 122 vpx_codec_frame_buffer* fb) { |
123 RTC_DCHECK(user_priv); | 123 RTC_DCHECK(user_priv); |
124 RTC_DCHECK(fb); | 124 RTC_DCHECK(fb); |
125 Vp9FrameBuffer* buffer = static_cast<Vp9FrameBuffer*>(fb->priv); | 125 Vp9FrameBuffer* buffer = static_cast<Vp9FrameBuffer*>(fb->priv); |
126 if (buffer != nullptr) { | 126 if (buffer != nullptr) { |
127 buffer->Release(); | 127 buffer->Release(); |
128 // When libvpx fails to decode and you continue to try to decode (and fail) | 128 // When libvpx fails to decode and you continue to try to decode (and fail) |
129 // libvpx can for some reason try to release the same buffer multiple times. | 129 // libvpx can for some reason try to release the same buffer multiple times. |
130 // Setting |priv| to null protects against trying to Release multiple times. | 130 // Setting |priv| to null protects against trying to Release multiple times. |
131 fb->priv = nullptr; | 131 fb->priv = nullptr; |
132 } | 132 } |
133 return 0; | 133 return 0; |
134 } | 134 } |
135 | 135 |
136 } // namespace webrtc | 136 } // namespace webrtc |
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