playwright/browser_patches/firefox-beta/juggler/screencast/ScreencastEncoder.h
Yury Semikhatsky 02aa31048c
browser(firefox): cross thread sync in screencast (#16320)
* nsIScreencastServiceClient is not thread safe refcounted so we make nsScreencastService::Session a thread safe refcounted object and keep it alive while there are inflight frames. Once such frames get handled on the main thread we check if the session has been stopped.
* Removed mCaptureCallbackCs in favor of atomic counter (mClient is not accessed only on the main thread).
* HeadlessWindowCapturer now holds RefPtr to the headless window object to avoid use after free when clearing it as a listener on the widget.
* ScreencastEncoder is not ref counted anymore.

Pretty-diff: 5f5042ff1e
2022-08-05 15:25:26 -07:00

46 lines
1.1 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#pragma once
#include <functional>
#include <memory>
#include "mozilla/gfx/Rect.h"
#include "mozilla/Maybe.h"
#include "mozilla/TimeStamp.h"
#include "nsISupportsImpl.h"
#include "nsStringFwd.h"
namespace webrtc {
class VideoFrame;
}
namespace mozilla {
class ScreencastEncoder {
public:
static constexpr int fps = 25;
static std::unique_ptr<ScreencastEncoder> create(nsCString& errorString, const nsCString& filePath, int width, int height, const gfx::IntMargin& margin);
class VPXCodec;
ScreencastEncoder(std::unique_ptr<VPXCodec>, const gfx::IntMargin& margin);
~ScreencastEncoder();
void encodeFrame(const webrtc::VideoFrame& videoFrame);
void finish(std::function<void()>&& callback);
private:
void flushLastFrame();
std::unique_ptr<VPXCodec> m_vpxCodec;
gfx::IntMargin m_margin;
TimeStamp m_lastFrameTimestamp;
class VPXFrame;
std::unique_ptr<VPXFrame> m_lastFrame;
};
} // namespace mozilla