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Reimplement FrameSubscriber with mojo VideoCapture APIs

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Heilig Benedek 2018-04-18 02:45:15 +02:00 • committed by Samuel Attard
parent 28f6e10e5a
commit 1de1ca906a
6 changed files with 99 additions and 104 deletions
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43
atom/browser/api/frame_subscriber.h
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@ -7,46 +7,53 @@
#include "base/callback.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/renderer_host/render_widget_host_view_frame_subscriber.h"
#include "content/public/browser/readback_types.h"
#include "content/public/browser/render_widget_host_view.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "services/viz/privileged/interfaces/compositing/frame_sink_video_capture.mojom.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
#include "v8/include/v8.h"
namespace atom {
namespace api {
class FrameSubscriber : public content::RenderWidgetHostViewFrameSubscriber {
class FrameSubscriber : public viz::mojom::FrameSinkVideoConsumer {
public:
using FrameCaptureCallback =
base::Callback<void(v8::Local<v8::Value>, v8::Local<v8::Value>)>;
FrameSubscriber(v8::Isolate* isolate,
content::RenderWidgetHostView* view,
const FrameCaptureCallback& callback,
bool only_dirty);
const FrameCaptureCallback& callback);
~FrameSubscriber() override;
bool ShouldCaptureFrame(const gfx::Rect& damage_rect,
base::TimeTicks present_time,
scoped_refptr<media::VideoFrame>* storage,
DeliverFrameCallback* callback) override;
const base::UnguessableToken& GetSourceIdForCopyRequest() override;
private:
void OnFrameDelivered(const FrameCaptureCallback& callback,
const gfx::Rect& damage_rect,
const SkBitmap& bitmap,
content::ReadbackResponse response);
void OnFrameCaptured(
mojo::ScopedSharedBufferHandle buffer,
uint32_t buffer_size,
::media::mojom::VideoFrameInfoPtr info,
const gfx::Rect& update_rect,
const gfx::Rect& content_rect,
viz::mojom::FrameSinkVideoConsumerFrameCallbacksPtr callbacks) override;
void OnTargetLost(const viz::FrameSinkId& frame_sink_id) override;
void OnStopped() override;
viz::mojom::FrameSinkVideoCapturerPtr CreateVideoCapturer();
v8::Isolate* isolate_;
content::RenderWidgetHostView* view_;
FrameCaptureCallback callback_;
bool only_dirty_;
base::UnguessableToken source_id_for_copy_request_;
SkBitmap frame_;
// This object keeps the shared memory that backs |frame_| mapped.
mojo::ScopedSharedBufferMapping shared_memory_mapping_;
// This object prevents FrameSinkVideoCapturer from recycling the shared
// memory that backs |frame_|.
viz::mojom::FrameSinkVideoConsumerFrameCallbacksPtr shared_memory_releaser_;
viz::mojom::FrameSinkVideoCapturerPtr video_capturer_;
mojo::Binding<viz::mojom::FrameSinkVideoConsumer> video_consumer_binding_;
base::WeakPtrFactory<FrameSubscriber> weak_factory_;