aiden/video-shader-toys
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Stage 1 rewrite

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Aiden
2026-05-12 00:52:33 +10:00
parent bf23cd880a
commit ac729dc2b9
20 changed files with 1047 additions and 25 deletions
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39
apps/LoopThroughWithOpenGLCompositing/videoio/decklink/DeckLinkSession.cpp
View File

@@ -2,6 +2,7 @@
#include <atlbase.h>
#include <atomic>
#include <chrono>
#include <cstdio>
#include <cstring>
#include <new>
@@ -526,8 +527,20 @@ bool DeckLinkSession::PopulateOutputFrame(IDeckLinkMutableVideoFrame* outputVide
bool DeckLinkSession::ScheduleFrame(IDeckLinkMutableVideoFrame* outputVideoFrame)
{
const VideoIOScheduleTime scheduleTime = mScheduler.NextScheduleTime();
return outputVideoFrame != nullptr &&
output->ScheduleVideoFrame(outputVideoFrame, scheduleTime.streamTime, scheduleTime.duration, scheduleTime.timeScale) == S_OK;
if (outputVideoFrame == nullptr || output == nullptr)
{
++mState.deckLinkScheduleFailureCount;
return false;
}
const auto scheduleStart = std::chrono::steady_clock::now();
const HRESULT result = output->ScheduleVideoFrame(outputVideoFrame, scheduleTime.streamTime, scheduleTime.duration, scheduleTime.timeScale);
const auto scheduleEnd = std::chrono::steady_clock::now();
mState.deckLinkScheduleCallMilliseconds = std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(scheduleEnd - scheduleStart).count();
if (result != S_OK)
++mState.deckLinkScheduleFailureCount;
RefreshBufferedVideoFrameCount();
return result == S_OK;
}
bool DeckLinkSession::ScheduleSystemMemoryFrame(const VideoIOOutputFrame& frame)
@@ -592,6 +605,26 @@ bool DeckLinkSession::ScheduleBlackFrame(IDeckLinkMutableVideoFrame* outputVideo
return ScheduleFrame(outputVideoFrame);
}
void DeckLinkSession::RefreshBufferedVideoFrameCount()
{
if (output == nullptr)
{
mState.actualDeckLinkBufferedFramesAvailable = false;
return;
}
unsigned int bufferedFrameCount = 0;
if (output->GetBufferedVideoFrameCount(&bufferedFrameCount) == S_OK)
{
mState.actualDeckLinkBufferedFrames = bufferedFrameCount;
mState.actualDeckLinkBufferedFramesAvailable = true;
}
else
{
mState.actualDeckLinkBufferedFramesAvailable = false;
}
}
bool DeckLinkSession::BeginOutputFrame(VideoIOOutputFrame& frame)
{
CComPtr<IDeckLinkMutableVideoFrame> outputVideoFrame;
@@ -736,6 +769,8 @@ void DeckLinkSession::HandleVideoInputFrame(IDeckLinkVideoInputFrame* inputFrame
void DeckLinkSession::HandlePlayoutFrameCompleted(IDeckLinkVideoFrame* completedFrame, BMDOutputFrameCompletionResult completionResult)
{
RefreshBufferedVideoFrameCount();
void* completedSystemBuffer = nullptr;
if (completedFrame != nullptr)
{

1
apps/LoopThroughWithOpenGLCompositing/videoio/decklink/DeckLinkSession.h
View File

@@ -74,6 +74,7 @@ private:
bool ScheduleFrame(IDeckLinkMutableVideoFrame* outputVideoFrame);
bool ScheduleSystemMemoryFrame(const VideoIOOutputFrame& frame);
bool ScheduleBlackFrame(IDeckLinkMutableVideoFrame* outputVideoFrame);
void RefreshBufferedVideoFrameCount();
static VideoIOCompletionResult TranslateCompletionResult(BMDOutputFrameCompletionResult completionResult);
CComPtr<CaptureDelegate> captureDelegate;