90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
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// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "libcef/browser/osr/video_consumer_osr.h"
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#include "libcef/browser/browser_host_impl.h"
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#include "libcef/browser/osr/render_widget_host_view_osr.h"
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#include "media/base/video_frame_metadata.h"
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#include "media/capture/mojom/video_capture_types.mojom.h"
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#include "ui/gfx/skbitmap_operations.h"
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CefVideoConsumerOSR::CefVideoConsumerOSR(CefRenderWidgetHostViewOSR* view)
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: view_(view),
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video_capturer_(view->CreateVideoCapturer()),
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weak_ptr_factory_(this) {
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const gfx::Size view_size = view_->SizeInPixels();
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video_capturer_->SetResolutionConstraints(view_size, view_size, true);
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video_capturer_->SetAutoThrottlingEnabled(false);
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video_capturer_->SetMinSizeChangePeriod(base::TimeDelta());
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video_capturer_->SetFormat(media::PIXEL_FORMAT_ARGB,
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gfx::ColorSpace::CreateREC709());
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}
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CefVideoConsumerOSR::~CefVideoConsumerOSR() = default;
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void CefVideoConsumerOSR::SetActive(bool active) {
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if (active) {
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video_capturer_->Start(this);
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} else {
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video_capturer_->Stop();
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}
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}
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void CefVideoConsumerOSR::SetFrameRate(base::TimeDelta frame_rate) {
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video_capturer_->SetMinCapturePeriod(frame_rate);
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}
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void CefVideoConsumerOSR::SizeChanged() {
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const gfx::Size view_size = view_->SizeInPixels();
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video_capturer_->SetResolutionConstraints(view_size, view_size, true);
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video_capturer_->RequestRefreshFrame();
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}
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void CefVideoConsumerOSR::OnFrameCaptured(
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base::ReadOnlySharedMemoryRegion data,
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::media::mojom::VideoFrameInfoPtr info,
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const gfx::Rect& content_rect,
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viz::mojom::FrameSinkVideoConsumerFrameCallbacksPtr callbacks) {
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const gfx::Size view_size = view_->SizeInPixels();
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if (view_size != content_rect.size()) {
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video_capturer_->SetResolutionConstraints(view_size, view_size, true);
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video_capturer_->RequestRefreshFrame();
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return;
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}
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if (!data.IsValid()) {
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callbacks->Done();
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return;
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}
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base::ReadOnlySharedMemoryMapping mapping = data.Map();
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if (!mapping.IsValid()) {
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DLOG(ERROR) << "Shared memory mapping failed.";
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return;
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}
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if (mapping.size() <
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media::VideoFrame::AllocationSize(info->pixel_format, info->coded_size)) {
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DLOG(ERROR) << "Shared memory size was less than expected.";
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return;
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}
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// The SkBitmap's pixels will be marked as immutable, but the installPixels()
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// API requires a non-const pointer. So, cast away the const.
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void* const pixels = const_cast<void*>(mapping.memory());
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media::VideoFrameMetadata metadata;
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metadata.MergeInternalValuesFrom(info->metadata);
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gfx::Rect damage_rect;
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if (!metadata.GetRect(media::VideoFrameMetadata::CAPTURE_UPDATE_RECT,
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&damage_rect)) {
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damage_rect = content_rect;
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}
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view_->OnPaint(damage_rect, content_rect.size(), pixels);
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}
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void CefVideoConsumerOSR::OnStopped() {}
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