aiden/video-shader-toys
1
0
Fork 0
Code Issues Pull Requests Actions Releases 5 Wiki Activity

stutter fix
Some checks failed
CI / Native Windows Build And Tests (push) Has been cancelled
Details
CI / React UI Build (push) Has been cancelled
Details
CI / Windows Release Package (push) Has been cancelled
Details

Browse Source
This commit is contained in:
Aiden
2026-05-06 11:23:40 +10:00
parent 3cb8d3cfad
commit 2317a80ce5
4 changed files with 78 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
apps/LoopThroughWithOpenGLCompositing/gl/OpenGLDeckLinkBridge.cpp
View File

@@ -30,6 +30,37 @@ OpenGLDeckLinkBridge::OpenGLDeckLinkBridge(
{
}
void OpenGLDeckLinkBridge::RecordFramePacing(BMDOutputFrameCompletionResult completionResult)
{
const auto now = std::chrono::steady_clock::now();
if (mLastPlayoutCompletionTime != std::chrono::steady_clock::time_point())
{
mCompletionIntervalMilliseconds = std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(now - mLastPlayoutCompletionTime).count();
if (mSmoothedCompletionIntervalMilliseconds <= 0.0)
mSmoothedCompletionIntervalMilliseconds = mCompletionIntervalMilliseconds;
else
mSmoothedCompletionIntervalMilliseconds = mSmoothedCompletionIntervalMilliseconds * 0.9 + mCompletionIntervalMilliseconds * 0.1;
if (mCompletionIntervalMilliseconds > mMaxCompletionIntervalMilliseconds)
mMaxCompletionIntervalMilliseconds = mCompletionIntervalMilliseconds;
}
mLastPlayoutCompletionTime = now;
if (completionResult == bmdOutputFrameDisplayedLate)
++mLateFrameCount;
else if (completionResult == bmdOutputFrameDropped)
++mDroppedFrameCount;
else if (completionResult == bmdOutputFrameFlushed)
++mFlushedFrameCount;
mRuntimeHost.SetFramePacingStats(
mCompletionIntervalMilliseconds,
mSmoothedCompletionIntervalMilliseconds,
mMaxCompletionIntervalMilliseconds,
mLateFrameCount,
mDroppedFrameCount,
mFlushedFrameCount);
}
void OpenGLDeckLinkBridge::VideoFrameArrived(IDeckLinkVideoInputFrame* inputFrame, bool hasNoInputSource)
{
mDeckLink.SetInputSourceMissing(hasNoInputSource);
@@ -90,6 +121,8 @@ void OpenGLDeckLinkBridge::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedF
{
(void)completedFrame;
RecordFramePacing(completionResult);
EnterCriticalSection(&mMutex);
// Get the first frame from the queue
@@ -120,6 +153,7 @@ void OpenGLDeckLinkBridge::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedF
IDeckLinkVideoBuffer* outputVideoFrameBuffer;
if (outputVideoFrame->QueryInterface(IID_IDeckLinkVideoBuffer, (void**)&outputVideoFrameBuffer) != S_OK)
{
wglMakeCurrent(NULL, NULL);
LeaveCriticalSection(&mMutex);
return;
}
@@ -127,6 +161,7 @@ void OpenGLDeckLinkBridge::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedF
if (outputVideoFrameBuffer->StartAccess(bmdBufferAccessWrite) != S_OK)
{
outputVideoFrameBuffer->Release();
wglMakeCurrent(NULL, NULL);
LeaveCriticalSection(&mMutex);
return;
}
@@ -136,10 +171,6 @@ void OpenGLDeckLinkBridge::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedF
if (mRenderer.FastTransferAvailable())
{
// Finished sampling the capture texture for this frame.
if (mDeckLink.HasInputSource())
VideoFrameTransfer::endTextureInUse(VideoFrameTransfer::CPUtoGPU);
if (!mDeckLink.TransferPlayoutFrame(pFrame, mRenderer.OutputTexture()))
OutputDebugStringA("Playback: transferFrame() failed\n");