本文整理汇总了C++中VideoInfo::IsValid方法的典型用法代码示例。如果您正苦于以下问题：C++ VideoInfo::IsValid方法的具体用法？C++ VideoInfo::IsValid怎么用？C++ VideoInfo::IsValid使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VideoInfo的用法示例。
在下文中一共展示了VideoInfo::IsValid方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Redraw
void VideoSink::Redraw(const VideoInfo& aInfo) {
AssertOwnerThread();
// No video track, nothing to draw.
if (!aInfo.IsValid() || !mContainer) {
return;
}
auto now = TimeStamp::Now();
RefPtr<VideoData> video = VideoQueue().PeekFront();
if (video) {
if (mBlankImage) {
video->mImage = mBlankImage;
}
video->MarkSentToCompositor();
mContainer->SetCurrentFrame(video->mDisplay, video->mImage, now);
if (mSecondaryContainer) {
mSecondaryContainer->SetCurrentFrame(video->mDisplay, video->mImage, now);
}
return;
}
// When we reach here, it means there are no frames in this video track.
// Draw a blank frame to ensure there is something in the image container
// to fire 'loadeddata'.
RefPtr<Image> blank =
mContainer->GetImageContainer()->CreatePlanarYCbCrImage();
mContainer->SetCurrentFrame(aInfo.mDisplay, blank, now);
if (mSecondaryContainer) {
mSecondaryContainer->SetCurrentFrame(aInfo.mDisplay, blank, now);
}
}示例2: AssertOwnerThread
void
VideoSink::Redraw(const VideoInfo& aInfo)
{
AssertOwnerThread();
// No video track, nothing to draw.
if (!aInfo.IsValid() || !mContainer) {
return;
}
if (VideoQueue().GetSize() > 0) {
RenderVideoFrames(1);
return;
}
// When we reach here, it means there are no frames in this video track.
// Draw a blank frame to ensure there is something in the image container
// to fire 'loadeddata'.
RefPtr<Image> blank =
mContainer->GetImageContainer()->CreatePlanarYCbCrImage();
mContainer->SetCurrentFrame(aInfo.mDisplay, blank, TimeStamp::Now());
}