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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // Notes about usage of this object by VideoCaptureImplManager. | 5 // Notes about usage of this object by VideoCaptureImplManager. |
| 6 // | 6 // |
| 7 // VideoCaptureImplManager access this object by using a Unretained() | 7 // VideoCaptureImplManager access this object by using a Unretained() |
| 8 // binding and tasks on the IO thread. It is then important that | 8 // binding and tasks on the IO thread. It is then important that |
| 9 // VideoCaptureImpl never post task to itself. All operations must be | 9 // VideoCaptureImpl never post task to itself. All operations must be |
| 10 // synchronous. | 10 // synchronous. |
| 11 | 11 |
| 12 #include "content/renderer/media/video_capture_impl.h" | 12 #include "content/renderer/media/video_capture_impl.h" |
| 13 | 13 |
| 14 #include <stddef.h> | 14 #include <stddef.h> |
| 15 #include <utility> | 15 #include <utility> |
| 16 | 16 |
| 17 #include "base/bind.h" | 17 #include "base/bind.h" |
| 18 #include "base/macros.h" | 18 #include "base/macros.h" |
| 19 #include "base/stl_util.h" | 19 #include "base/stl_util.h" |
| 20 #include "base/thread_task_runner_handle.h" | 20 #include "base/thread_task_runner_handle.h" |
| 21 #include "content/child/child_process.h" | 21 #include "content/child/child_process.h" |
| 22 #include "content/common/gpu/client/gpu_memory_buffer_impl.h" | |
| 23 #include "content/common/media/video_capture_messages.h" | 22 #include "content/common/media/video_capture_messages.h" |
| 23 #include "gpu/ipc/client/gpu_memory_buffer_impl.h" |
| 24 #include "media/base/bind_to_current_loop.h" | 24 #include "media/base/bind_to_current_loop.h" |
| 25 #include "media/base/limits.h" | 25 #include "media/base/limits.h" |
| 26 #include "media/base/video_frame.h" | 26 #include "media/base/video_frame.h" |
| 27 | 27 |
| 28 namespace content { | 28 namespace content { |
| 29 | 29 |
| 30 // A holder of a memory-backed buffer and accessors to it. | 30 // A holder of a memory-backed buffer and accessors to it. |
| 31 class VideoCaptureImpl::ClientBuffer | 31 class VideoCaptureImpl::ClientBuffer |
| 32 : public base::RefCountedThreadSafe<ClientBuffer> { | 32 : public base::RefCountedThreadSafe<ClientBuffer> { |
| 33 public: | 33 public: |
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| 56 ClientBuffer2( | 56 ClientBuffer2( |
| 57 const std::vector<gfx::GpuMemoryBufferHandle>& client_handles, | 57 const std::vector<gfx::GpuMemoryBufferHandle>& client_handles, |
| 58 const gfx::Size& size) | 58 const gfx::Size& size) |
| 59 : handles_(client_handles), | 59 : handles_(client_handles), |
| 60 size_(size) { | 60 size_(size) { |
| 61 const media::VideoPixelFormat format = media::PIXEL_FORMAT_I420; | 61 const media::VideoPixelFormat format = media::PIXEL_FORMAT_I420; |
| 62 DCHECK_EQ(handles_.size(), media::VideoFrame::NumPlanes(format)); | 62 DCHECK_EQ(handles_.size(), media::VideoFrame::NumPlanes(format)); |
| 63 for (size_t i = 0; i < handles_.size(); ++i) { | 63 for (size_t i = 0; i < handles_.size(); ++i) { |
| 64 const size_t width = media::VideoFrame::Columns(i, format, size_.width()); | 64 const size_t width = media::VideoFrame::Columns(i, format, size_.width()); |
| 65 const size_t height = media::VideoFrame::Rows(i, format, size_.height()); | 65 const size_t height = media::VideoFrame::Rows(i, format, size_.height()); |
| 66 buffers_.push_back(GpuMemoryBufferImpl::CreateFromHandle( | 66 buffers_.push_back(gpu::GpuMemoryBufferImpl::CreateFromHandle( |
| 67 handles_[i], gfx::Size(width, height), gfx::BufferFormat::R_8, | 67 handles_[i], gfx::Size(width, height), gfx::BufferFormat::R_8, |
| 68 gfx::BufferUsage::GPU_READ_CPU_READ_WRITE, | 68 gfx::BufferUsage::GPU_READ_CPU_READ_WRITE, |
| 69 base::Bind(&ClientBuffer2::DestroyGpuMemoryBuffer, | 69 base::Bind(&ClientBuffer2::DestroyGpuMemoryBuffer, |
| 70 base::Unretained(this)))); | 70 base::Unretained(this)))); |
| 71 bool rv = buffers_[i]->Map(); | 71 bool rv = buffers_[i]->Map(); |
| 72 DCHECK(rv); | 72 DCHECK(rv); |
| 73 data_[i] = reinterpret_cast<uint8_t*>(buffers_[i]->memory(0u)); | 73 data_[i] = reinterpret_cast<uint8_t*>(buffers_[i]->memory(0u)); |
| 74 strides_[i] = width; | 74 strides_[i] = width; |
| 75 } | 75 } |
| 76 } | 76 } |
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| 552 double consumer_resource_utilization = -1.0; | 552 double consumer_resource_utilization = -1.0; |
| 553 if (!metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION, | 553 if (!metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION, |
| 554 &consumer_resource_utilization)) { | 554 &consumer_resource_utilization)) { |
| 555 consumer_resource_utilization = -1.0; | 555 consumer_resource_utilization = -1.0; |
| 556 } | 556 } |
| 557 | 557 |
| 558 callback_to_io_thread.Run(*release_sync_token, consumer_resource_utilization); | 558 callback_to_io_thread.Run(*release_sync_token, consumer_resource_utilization); |
| 559 } | 559 } |
| 560 | 560 |
| 561 } // namespace content | 561 } // namespace content |
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