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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 #include "content/common/gpu/media/fake_video_decode_accelerator.h" | 5 #include "content/common/gpu/media/fake_video_decode_accelerator.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/location.h" | 8 #include "base/location.h" |
| 9 #include "base/thread_task_runner_handle.h" |
9 #include "media/base/bitstream_buffer.h" | 10 #include "media/base/bitstream_buffer.h" |
10 #include "media/base/limits.h" | 11 #include "media/base/limits.h" |
11 #include "ui/gl/gl_context.h" | 12 #include "ui/gl/gl_context.h" |
12 #include "ui/gl/gl_implementation.h" | 13 #include "ui/gl/gl_implementation.h" |
13 #include "ui/gl/gl_surface.h" | 14 #include "ui/gl/gl_surface.h" |
14 #include "ui/gl/gl_surface_egl.h" | 15 #include "ui/gl/gl_surface_egl.h" |
15 #include "ui/gl/gl_surface_glx.h" | 16 #include "ui/gl/gl_surface_glx.h" |
16 | 17 |
17 namespace content { | 18 namespace content { |
18 | 19 |
19 static const uint32 kDefaultTextureTarget = GL_TEXTURE_2D; | 20 static const uint32 kDefaultTextureTarget = GL_TEXTURE_2D; |
20 // Must be at least 2 since the rendering helper will switch between textures | 21 // Must be at least 2 since the rendering helper will switch between textures |
21 // and if there is only one, it will wait for the next one that will never come. | 22 // and if there is only one, it will wait for the next one that will never come. |
22 // Must also be an even number as otherwise there won't be the same amount of | 23 // Must also be an even number as otherwise there won't be the same amount of |
23 // white and black frames. | 24 // white and black frames. |
24 static const unsigned int kNumBuffers = media::limits::kMaxVideoFrames + | 25 static const unsigned int kNumBuffers = media::limits::kMaxVideoFrames + |
25 (media::limits::kMaxVideoFrames & 1u); | 26 (media::limits::kMaxVideoFrames & 1u); |
26 | 27 |
27 FakeVideoDecodeAccelerator::FakeVideoDecodeAccelerator( | 28 FakeVideoDecodeAccelerator::FakeVideoDecodeAccelerator( |
28 gfx::GLContext* gl, | 29 gfx::GLContext* gl, |
29 gfx::Size size, | 30 gfx::Size size, |
30 const base::Callback<bool(void)>& make_context_current) | 31 const base::Callback<bool(void)>& make_context_current) |
31 : child_message_loop_proxy_(base::MessageLoopProxy::current()), | 32 : child_task_runner_(base::ThreadTaskRunnerHandle::Get()), |
32 client_(NULL), | 33 client_(NULL), |
33 make_context_current_(make_context_current), | 34 make_context_current_(make_context_current), |
34 gl_(gl), | 35 gl_(gl), |
35 frame_buffer_size_(size), | 36 frame_buffer_size_(size), |
36 flushing_(false), | 37 flushing_(false), |
37 weak_this_factory_(this) { | 38 weak_this_factory_(this) { |
38 } | 39 } |
39 | 40 |
40 FakeVideoDecodeAccelerator::~FakeVideoDecodeAccelerator() { | 41 FakeVideoDecodeAccelerator::~FakeVideoDecodeAccelerator() { |
41 } | 42 } |
42 | 43 |
43 bool FakeVideoDecodeAccelerator::Initialize(media::VideoCodecProfile profile, | 44 bool FakeVideoDecodeAccelerator::Initialize(media::VideoCodecProfile profile, |
44 Client* client) { | 45 Client* client) { |
45 DCHECK(child_message_loop_proxy_->BelongsToCurrentThread()); | 46 DCHECK(child_task_runner_->BelongsToCurrentThread()); |
46 if (profile == media::VIDEO_CODEC_PROFILE_UNKNOWN) { | 47 if (profile == media::VIDEO_CODEC_PROFILE_UNKNOWN) { |
47 LOG(ERROR) << "unknown codec profile"; | 48 LOG(ERROR) << "unknown codec profile"; |
48 return false; | 49 return false; |
49 } | 50 } |
50 // V4L2VideoDecodeAccelerator waits until first decode call to ask for buffers | 51 // V4L2VideoDecodeAccelerator waits until first decode call to ask for buffers |
51 // This class asks for it on initialization instead. | 52 // This class asks for it on initialization instead. |
52 client_ = client; | 53 client_ = client; |
53 client_->ProvidePictureBuffers(kNumBuffers, | 54 client_->ProvidePictureBuffers(kNumBuffers, |
54 frame_buffer_size_, | 55 frame_buffer_size_, |
55 kDefaultTextureTarget); | 56 kDefaultTextureTarget); |
56 return true; | 57 return true; |
57 } | 58 } |
58 | 59 |
59 void FakeVideoDecodeAccelerator::Decode( | 60 void FakeVideoDecodeAccelerator::Decode( |
60 const media::BitstreamBuffer& bitstream_buffer) { | 61 const media::BitstreamBuffer& bitstream_buffer) { |
61 int bitstream_buffer_id = bitstream_buffer.id(); | 62 int bitstream_buffer_id = bitstream_buffer.id(); |
62 queued_bitstream_ids_.push(bitstream_buffer_id); | 63 queued_bitstream_ids_.push(bitstream_buffer_id); |
63 child_message_loop_proxy_->PostTask( | 64 child_task_runner_->PostTask( |
64 FROM_HERE, | 65 FROM_HERE, base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, |
65 base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, | 66 weak_this_factory_.GetWeakPtr())); |
66 weak_this_factory_.GetWeakPtr())); | |
67 } | 67 } |
68 | 68 |
69 // Similar to UseOutputBitstreamBuffer for the encode accelerator. | 69 // Similar to UseOutputBitstreamBuffer for the encode accelerator. |
70 void FakeVideoDecodeAccelerator::AssignPictureBuffers( | 70 void FakeVideoDecodeAccelerator::AssignPictureBuffers( |
71 const std::vector<media::PictureBuffer>& buffers) { | 71 const std::vector<media::PictureBuffer>& buffers) { |
72 DCHECK(buffers.size() == kNumBuffers); | 72 DCHECK(buffers.size() == kNumBuffers); |
73 DCHECK(!(buffers.size()%2)); | 73 DCHECK(!(buffers.size()%2)); |
74 | 74 |
75 // Save buffers and mark all buffers as ready for use. | 75 // Save buffers and mark all buffers as ready for use. |
76 scoped_ptr<uint8[]> white_data( | 76 scoped_ptr<uint8[]> white_data( |
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100 GL_RGBA, | 100 GL_RGBA, |
101 GL_UNSIGNED_BYTE, | 101 GL_UNSIGNED_BYTE, |
102 data); | 102 data); |
103 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); | 103 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
104 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); | 104 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
105 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | 105 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
106 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | 106 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
107 glBindTexture(GL_TEXTURE_2D, 0); | 107 glBindTexture(GL_TEXTURE_2D, 0); |
108 free_output_buffers_.push(buffers[index].id()); | 108 free_output_buffers_.push(buffers[index].id()); |
109 } | 109 } |
110 child_message_loop_proxy_->PostTask( | 110 child_task_runner_->PostTask( |
111 FROM_HERE, | 111 FROM_HERE, base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, |
112 base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, | 112 weak_this_factory_.GetWeakPtr())); |
113 weak_this_factory_.GetWeakPtr())); | |
114 } | 113 } |
115 | 114 |
116 void FakeVideoDecodeAccelerator::ReusePictureBuffer(int32 picture_buffer_id) { | 115 void FakeVideoDecodeAccelerator::ReusePictureBuffer(int32 picture_buffer_id) { |
117 free_output_buffers_.push(picture_buffer_id); | 116 free_output_buffers_.push(picture_buffer_id); |
118 child_message_loop_proxy_->PostTask( | 117 child_task_runner_->PostTask( |
119 FROM_HERE, | 118 FROM_HERE, base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, |
120 base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, | 119 weak_this_factory_.GetWeakPtr())); |
121 weak_this_factory_.GetWeakPtr())); | |
122 } | 120 } |
123 | 121 |
124 void FakeVideoDecodeAccelerator::Flush() { | 122 void FakeVideoDecodeAccelerator::Flush() { |
125 flushing_ = true; | 123 flushing_ = true; |
126 child_message_loop_proxy_->PostTask( | 124 child_task_runner_->PostTask( |
127 FROM_HERE, | 125 FROM_HERE, base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, |
128 base::Bind(&FakeVideoDecodeAccelerator::DoPictureReady, | 126 weak_this_factory_.GetWeakPtr())); |
129 weak_this_factory_.GetWeakPtr())); | |
130 } | 127 } |
131 | 128 |
132 void FakeVideoDecodeAccelerator::Reset() { | 129 void FakeVideoDecodeAccelerator::Reset() { |
133 while (!queued_bitstream_ids_.empty()) { | 130 while (!queued_bitstream_ids_.empty()) { |
134 client_->NotifyEndOfBitstreamBuffer(queued_bitstream_ids_.front()); | 131 client_->NotifyEndOfBitstreamBuffer(queued_bitstream_ids_.front()); |
135 queued_bitstream_ids_.pop(); | 132 queued_bitstream_ids_.pop(); |
136 } | 133 } |
137 client_->NotifyResetDone(); | 134 client_->NotifyResetDone(); |
138 } | 135 } |
139 | 136 |
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169 // Bitstream no longer needed. | 166 // Bitstream no longer needed. |
170 client_->NotifyEndOfBitstreamBuffer(bitstream_id); | 167 client_->NotifyEndOfBitstreamBuffer(bitstream_id); |
171 if (flushing_ && queued_bitstream_ids_.empty()) { | 168 if (flushing_ && queued_bitstream_ids_.empty()) { |
172 flushing_ = false; | 169 flushing_ = false; |
173 client_->NotifyFlushDone(); | 170 client_->NotifyFlushDone(); |
174 } | 171 } |
175 } | 172 } |
176 } | 173 } |
177 | 174 |
178 } // namespace content | 175 } // namespace content |
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