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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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