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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_FRAME_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_FRAME_H_
#include <stdint.h>
#include <optional>
#include "base/feature_list.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_typedefs.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_typedefs.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_video_pixel_format.h"
#include "third_party/blink/renderer/core/html/canvas/canvas_image_source.h"
#include "third_party/blink/renderer/core/imagebitmap/image_bitmap_source.h"
#include "third_party/blink/renderer/modules/canvas/canvas2d/canvas_image_source_util.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/webcodecs/array_buffer_util.h"
#include "third_party/blink/renderer/modules/webcodecs/video_frame_handle.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/graphics/predefined_color_space.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkRefCnt.h"
// Note: Don't include "media/base/video_frame.h" here without good reason,
// since it includes a lot of non-blink types which can pollute the namespace.
namespace media {
class VideoFrame;
}
namespace blink {
class CanvasImageSource;
class DOMRectReadOnly;
class ExceptionState;
class ExecutionContext;
class PlaneLayout;
class ScriptState;
class VideoColorSpace;
class VideoFrameBufferInit;
class VideoFrameCopyToOptions;
class VideoFrameInit;
class VideoFrameLayout;
class VideoFrameMetadata;
class MODULES_EXPORT VideoFrame final : public ScriptWrappable,
public CanvasImageSource,
public ImageBitmapSource {
DEFINE_WRAPPERTYPEINFO();
public:
// Creates a VideoFrame with a new VideoFrameHandle wrapping |frame|, and
// monitored using |monitoring_source_id|.
VideoFrame(scoped_refptr<media::VideoFrame> frame,
ExecutionContext*,
std::string monitoring_source_id = std::string(),
sk_sp<SkImage> sk_image = nullptr,
bool use_capture_timestamp = false);
// Creates a VideoFrame from an existing handle.
// All frames sharing |handle| will have their |handle_| invalidated if any of
// the frames receives a call to close().
explicit VideoFrame(scoped_refptr<VideoFrameHandle> handle);
~VideoFrame() override;
// video_frame.idl implementation.
static VideoFrame* Create(ScriptState* script_state,
const V8CanvasImageSource* source,
const VideoFrameInit* init,
ExceptionState& exception_state);
static VideoFrame* Create(ScriptState*,
const AllowSharedBufferSource*,
const VideoFrameBufferInit*,
ExceptionState&);
std::optional<V8VideoPixelFormat> format() const;
int64_t timestamp() const;
std::optional<uint64_t> duration() const;
uint32_t codedWidth() const;
uint32_t codedHeight() const;
DOMRectReadOnly* codedRect();
DOMRectReadOnly* visibleRect();
uint32_t rotation() const;
bool flip() const;
uint32_t displayWidth() const;
uint32_t displayHeight() const;
VideoColorSpace* colorSpace();
VideoFrameMetadata* metadata(ExceptionState&);
uint32_t allocationSize(VideoFrameCopyToOptions* options, ExceptionState&);
ScriptPromise<IDLSequence<PlaneLayout>> copyTo(
ScriptState* script_state,
const AllowSharedBufferSource* destination,
VideoFrameCopyToOptions* options,
ExceptionState& exception_state);
// Invalidates |handle_|, releasing underlying media::VideoFrame references.
// This effectively "destroys" all frames sharing the same Handle.
void close();
// Creates a clone of |this|, with a new Handle, referencing the same
// media::VideoFrame. The cloned frame will not be closed when |this| is,
// and its lifetime should be independently managed.
VideoFrame* clone(ExceptionState&);
// Convenience functions
scoped_refptr<VideoFrameHandle> handle() const { return handle_; }
scoped_refptr<media::VideoFrame> frame() const { return handle_->frame(); }
bool WouldTaintOrigin() const override;
// GarbageCollected override
void Trace(Visitor*) const override;
private:
// CanvasImageSource implementation
scoped_refptr<Image> GetSourceImageForCanvas(FlushReason,
SourceImageStatus*,
const gfx::SizeF&) override;
gfx::SizeF ElementSize(const gfx::SizeF&,
const RespectImageOrientationEnum) const override;
bool IsVideoFrame() const override;
bool IsOpaque() const override;
bool IsAccelerated() const override;
void ConvertAndCopyToRGB(scoped_refptr<media::VideoFrame> frame,
const gfx::Rect& src_rect,
const VideoFrameLayout& dest_layout,
base::span<uint8_t> buffer,
PredefinedColorSpace target_color_space);
bool CopyToAsync(ScriptPromiseResolver<IDLSequence<PlaneLayout>>*,
scoped_refptr<media::VideoFrame> frame,
gfx::Rect src_rect,
const AllowSharedBufferSource* destination,
const VideoFrameLayout& dest_layout);
// ImageBitmapSource implementation
static constexpr uint64_t kCpuEfficientFrameSize = 320u * 240u;
ImageBitmapSourceStatus CheckUsability() const override;
ScriptPromise<ImageBitmap> CreateImageBitmap(
ScriptState*,
std::optional<gfx::Rect> crop_rect,
const ImageBitmapOptions*,
ExceptionState&) override;
// Underlying frame
scoped_refptr<VideoFrameHandle> handle_;
// Caches
Member<DOMRectReadOnly> coded_rect_;
Member<DOMRectReadOnly> visible_rect_;
Member<VideoColorSpace> color_space_;
Member<VideoColorSpace> empty_color_space_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_VIDEO_FRAME_H_
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