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bug 962719 provide frame ID service to clients r=roc

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This commit is contained in:
Karl Tomlinson 2015-08-07 11:37:08 +12:00
parent 306d61acef
commit 310d6ceba8
1 changed files with 11 additions and 2 deletions
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13
dom/media/VideoFrameContainer.h
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@ -56,6 +56,15 @@ public:
// E.g. if the last painted frame should have been painted at time t,
// but was actually painted at t+n, this returns n in seconds. Threadsafe.
double GetFrameDelay();
// Returns a new frame ID for SetCurrentFrames(). The client must either
// call this on only one thread or provide barriers. Do not use together
// with SetCurrentFrame().
ImageContainer::FrameID NewFrameID()
{
return ++mFrameID;
}
// Call on main thread
enum {
INVALIDATE_DEFAULT,
@ -83,8 +92,8 @@ protected:
// specifies that the Image should be stretched to have the correct aspect
// ratio.
gfxIntSize mIntrinsicSize;
// For SetCurrentFrame callers we maintain our own mFrameID which is auto-
// incremented at every SetCurrentFrame.
// We maintain our own mFrameID which is auto-incremented at every
// SetCurrentFrame() or NewFrameID() call.
ImageContainer::FrameID mFrameID;
// True when the intrinsic size has been changed by SetCurrentFrame() since
// the last call to Invalidate().