void test_pcm_source(int op)
{
if (op == 0)
{
if (g_test_source == nullptr)
{
auto mydsp = std::make_shared<MyTestAudioDSP>();
g_test_source = std::make_shared<MRP_PCMSource>(mydsp);
g_prev_reg.src = g_test_source.get();
g_prev_reg.volume = 1.0;
g_prev_reg.loop = true;
#ifdef WIN32
InitializeCriticalSection(&g_prev_reg.cs);
#else
// I wonder if pthread copies this stuff internally...
pthread_mutexattr_t mta;
pthread_mutexattr_init(&mta);
pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&g_prev_reg.mutex, &mta);
#endif
}
if (g_is_playing == false)
{
g_test_source->get_dsp()->prepare_audio(2, 44100.0, 512);
PlayPreview(&g_prev_reg);
g_is_playing = true;
}
else
{
StopPreview(&g_prev_reg);
g_test_source->get_dsp()->release_audio();
g_is_playing = false;
}
}
else if (op == 1) // Clean up on Reaper shutdown
{
if (g_is_playing == true)
StopPreview(&g_prev_reg);
g_test_source.reset();
#ifdef WIN32
DeleteCriticalSection(&g_prev_reg.cs);
#else
pthread_mutex_destroy(&g_prev_reg.mutex);
#endif
}
}
HRESULT CGraphRender::StartPreview(const RECT& rect, HWND hWnd)
{
StopPreview();
HRESULT hr =
PutIntoWindow( hWnd, rect, TRUE );
Run(); return hr;
}
HRESULT CVideoCapture::StartPreview(const RECT& rect, HWND hWnd)
{
StopPreview();
CComPtr<IBaseFilter> pCapture;
m_pGraphBuilder->FindFilterByName( L"Video Capture", &pCapture );
HRESULT hr =
m_pCapGraphBuilder->RenderStream( &PIN_CATEGORY_PREVIEW,
&MEDIATYPE_Video, pCapture, NULL, NULL );
if ( SUCCEEDED(hr) ) hr =
PutIntoWindow( hWnd, rect, TRUE );
Run(); return hr;
}
HRESULT CAccessSys::StartCapture(void)
{
HRESULT hr;
IBaseFilter *pSrcFilter = NULL;
IFilterGraph*pGraph = NULL;
if (e_psCurrent == Running){
StopPreview();
}
hr = BuildCapture();
if (FAILED(hr))
{
Msg(TEXT("Couldn't BuildCapture ! hr=0x%x"), hr);
return hr;
}
// Start previewing video & audio data
if (h_wnd){
hr = SetupVideoWindow(h_wnd);
if (FAILED(hr))
{
Msg(TEXT("Couldn't initialize video window! hr=0x%x"), hr);
return hr;
}
}
hr = p_control->Run();
if (FAILED(hr))
{
Msg(TEXT("Couldn't run the graph! hr=0x%x"), hr);
return hr;
}
// Remember current state
e_psCurrent = Running;
//m_remote = new CRemoteSys(p_loop);
//Msg(TEXT("StartCapture success"));
return S_OK;
}
void CPreviewCtrl::OnTimer(UINT nIDEvent)
{
if(m_nFrame < 0)
{
m_nFrame = 0;
}
else
{
m_nFrame++;
}
if(m_nFrame > m_nTotalFrames)
{
m_nFrame = 0;
StopPreview();
}
AfxTrace("OnTimer: m_nFrame=%d\n", m_nFrame);
InvalidateRect(NULL, TRUE);
CStatic::OnTimer(nIDEvent);
}
HRESULT CVideoRenderer::StartPreview(const RECT& rect, HWND hWnd)
{
StopPreview();
CComPtr<IBaseFilter> pSmartTee;
m_pGraphBuilder->FindFilterByName( L"Smart Tee", &pSmartTee );
// Compressor
CComPtr<IBaseFilter> pCompressor;
CreateFilter( CLSID_H263Decoder, L"H.263 Decoder", &pCompressor );
CComPtr<IPin> pPinOut;
pSmartTee->FindPin( L"Preview", &pPinOut );
if ( SUCCEEDED( m_pGraphBuilder->Render( pPinOut ) ) )
{
PutIntoWindow( hWnd, rect, TRUE );
}
return Run();
}
HRESULT CAccessSys::StartPreview(HWND h)
{
HRESULT hr;
IBaseFilter *pSrcFilter = NULL;
if (e_psCurrent == Running){
StopPreview();
}
hr = BuildPreview();
if (FAILED(hr)){
return hr;
}
//// Get DirectShow interfaces
//hr = GetInterfaces();
//if (FAILED(hr))
//{
// Msg(TEXT("Failed to get video interfaces! hr=0x%x"), hr);
// return hr;
//}
//// Attach the filter graph to the capture graph
//hr = p_capture_graph_builder2->SetFiltergraph(p_graph);
//if (FAILED(hr))
//{
// Msg(TEXT("Failed to set capture filter graph! hr=0x%x"), hr);
// return hr;
//}
//// Use the system device enumerator and class enumerator to find
//// a video capture/preview device, such as a desktop USB video camera.
//hr = FindCaptureDevice();
//if (FAILED(hr))
//{
// // Don't display a message because FindCaptureDevice will handle it
// return hr;
//}
//pSrcFilter = p_streams[0].p_device_filter;
//// Add Capture filter to our graph.
//hr = p_graph->AddFilter(pSrcFilter, L"Video Source");
//if (FAILED(hr))
//{
// Msg(TEXT("Couldn't add the capture filter to the graph! hr=0x%x\r\n\r\n")
// TEXT("If you have a working video capture device, please make sure\r\n")
// TEXT("that it is connected and is not being used by another application.\r\n\r\n")
// TEXT("The sample will now close."), hr);
// pSrcFilter->Release();
// return hr;
//}
// Render the preview pin on the video capture filter
// Use this instead of g_pGraph->RenderFile
//pSrcFilter = p_streams[0].p_device_filter;
//hr = p_capture_graph_builder2->RenderStream(&PIN_CATEGORY_PREVIEW, &MEDIATYPE_Video,
// pSrcFilter, NULL, NULL);
//if (FAILED(hr))
//{
// Msg(TEXT("Couldn't render the video capture stream. hr=0x%x\r\n")
// TEXT("The capture device may already be in use by another application.\r\n\r\n")
// TEXT("The sample will now close."), hr);
// pSrcFilter->Release();
// return hr;
//}
//// Now that the filter has been added to the graph and we have
//// rendered its stream, we can release this reference to the filter.
//pSrcFilter->Release();
//pSrcFilter = p_streams[1].p_device_filter;
//// Add Capture filter to our graph.
//hr = p_graph->AddFilter(pSrcFilter, L"Audio Source");
//if (FAILED(hr))
//{
// Msg(TEXT("Couldn't add the capture filter to the graph! hr=0x%x\r\n\r\n")
// TEXT("If you have a working video capture device, please make sure\r\n")
// TEXT("that it is connected and is not being used by another application.\r\n\r\n")
// TEXT("The sample will now close."), hr);
// pSrcFilter->Release();
// return hr;
//}
// Render the preview pin on the audio capture filter
// Use this instead of g_pGraph->RenderFile
//pSrcFilter = p_streams[1].p_device_filter;
//hr = p_capture_graph_builder2->RenderStream(&PIN_CATEGORY_PREVIEW, &MEDIATYPE_Audio,
// pSrcFilter, NULL, NULL);
//if (FAILED(hr))
//{
// Msg(TEXT("Couldn't render the video capture stream. hr=0x%x\r\n")
// TEXT("The capture device may already be in use by another application.\r\n\r\n")
// TEXT("The sample will now close."), hr);
// pSrcFilter->Release();
// return hr;
//}
//// Now that the filter has been added to the graph and we have
//// rendered its stream, we can release this reference to the filter.
//pSrcFilter->Release();
// Set video window style and position
if (h){
h_wnd = h;
hr = SetupVideoWindow(h_wnd);
if (FAILED(hr))
{
Msg(TEXT("Couldn't initialize video window! hr=0x%x"), hr);
return hr;
}
}
#ifdef REGISTER_FILTERGRAPH
// Add our graph to the running object table, which will allow
// the GraphEdit application to "spy" on our graph
hr = AddGraphToRot(g_pGraph, &g_dwGraphRegister);
if (FAILED(hr))
{
Msg(TEXT("Failed to register filter graph with ROT! hr=0x%x"), hr);
g_dwGraphRegister = 0;
}
#endif
// Start previewing video & audio data
hr = p_control->Run();
if (FAILED(hr))
{
Msg(TEXT("Couldn't run the graph! hr=0x%x"), hr);
return hr;
}
DWORD err = GetLastError();
// Remember current state
e_psCurrent = Running;
//ConnectToServer(m_userinfo.ip, m_userinfo.port);
return S_OK;
}
CAccessSys::~CAccessSys(void)
{
if (e_psCurrent == Running) StopPreview();
CloseInterfaces();
}
static void MidiTakePreview (int mode, MediaItem_Take* take, MediaTrack* track, double volume, double startOffset, double measureSync, bool pauseDuringPrev)
{
/* mode: 0 -> stop *
* 1 -> start *
* 2 -> toggle */
if (IsRecording()) // Reaper won't preview anything during recording but extension will still think preview is in progress (could disrupt toggle states and send unneeded CC123)
return;
if (g_itemPreviewPlaying)
{
if (g_ItemPreview.preview_track)
{
StopTrackPreview(&g_ItemPreview);
SendAllNotesOff((MediaTrack*)g_ItemPreview.preview_track);
}
else
{
StopPreview(&g_ItemPreview);
}
g_itemPreviewPlaying = false;
delete g_ItemPreview.src;
if (g_itemPreviewPaused && mode != 1) // requesting new preview while old one is still playing shouldn't unpause playback
{
if (IsPaused()) OnPauseButton();
g_itemPreviewPaused = false;
}
if (mode == 2)
return;
}
if (mode == 0)
return;
if (take)
{
MediaItem* item = GetMediaItemTake_Item(take);
MediaItem_Take* oldTake = GetActiveTake(item);
bool itemMuteState = *(bool*)GetSetMediaItemInfo(item, "B_MUTE", NULL);
double effectiveTakeLen = EffectiveMidiTakeLength(take, true, true);
GetSetMediaItemInfo(item, "B_MUTE", &g_bFalse); // needs to be set before getting the source
SetActiveTake(take); // active item take and editor take may differ
PCM_source* src = ((PCM_source*)item)->Duplicate(); // must be item source otherwise item/take volume won't get accounted for
if (src && effectiveTakeLen > 0 && effectiveTakeLen > startOffset)
{
GetSetMediaItemInfo((MediaItem*)src, "D_POSITION", &g_d0);
GetSetMediaItemInfo((MediaItem*)src, "D_LENGTH", &effectiveTakeLen);
if (!g_ItemPreview.src)
{
#ifdef _WIN32
InitializeCriticalSection(&g_ItemPreview.cs);
#else
pthread_mutex_init(&g_ItemPreview.mutex, NULL);
#endif
g_ItemPreview.loop = false;
}
g_ItemPreview.src = src;
g_ItemPreview.m_out_chan = (track) ? (-1) : (0);
g_ItemPreview.curpos = startOffset;
g_ItemPreview.volume = volume;
g_ItemPreview.preview_track = track;
// Pause before preview otherwise MidiTakePreviewPlayState will stop it
g_itemPreviewPaused = pauseDuringPrev;
if (g_itemPreviewPaused && IsPlaying() && !IsPaused())
OnPauseButton();
if (g_ItemPreview.preview_track)
g_itemPreviewPlaying = !!PlayTrackPreview2Ex(NULL, &g_ItemPreview, (measureSync) ? (1) : (0), measureSync);
else
g_itemPreviewPlaying = !!PlayPreviewEx(&g_ItemPreview, (measureSync) ? (1) : (0), measureSync);
if (g_itemPreviewPlaying)
plugin_register("timer",(void*)MidiTakePreviewTimer);
else
delete g_ItemPreview.src;
}
SetActiveTake(oldTake);
GetSetMediaItemInfo(item, "B_MUTE", &itemMuteState);
}
}
static void MidiTakePreview (int mode, MediaItem_Take* take, MediaTrack* track, double volume, double startOffset, double measureSync, bool pauseDuringPrev)
{
/* mode: 0 -> stop *
* 1 -> start *
* 2 -> toggle */
// First stop any ongoing preview
RegisterCsurfPlayState(false, MidiTakePreviewPlayState);
if (g_itemPreviewPlaying)
{
if (g_ItemPreview.preview_track)
{
StopTrackPreview(&g_ItemPreview);
SendAllNotesOff((MediaTrack*)g_ItemPreview.preview_track);
}
else
{
StopPreview(&g_ItemPreview);
}
g_itemPreviewPlaying = false;
plugin_register("-timer",(void*)MidiTakePreviewTimer);
delete g_ItemPreview.src;
if (g_itemPreviewPaused && mode != 1) // requesting new preview while old one is still playing shouldn't unpause playback
{
if (IsPaused(NULL))
OnPauseButtonEx(NULL);
g_itemPreviewPaused = false;
}
// Toggled preview off...treat it as stop
if (mode == 2)
mode = 0;
}
// About IsRecording: REAPER won't preview anything during recording but extension will still think preview is in progress if we let it continue here
if (mode == 0 || IsRecording(NULL))
return;
if (take)
{
PreventUIRefresh(1); // item may get resized temporarily so hide it from the user
MediaItem* item = GetMediaItemTake_Item(take);
MediaItem_Take* oldTake = GetActiveTake(item);
bool itemMuteState = *(bool*)GetSetMediaItemInfo(item, "B_MUTE", NULL);
GetSetMediaItemInfo(item, "B_MUTE", &g_bFalse); // needs to be set before getting the source
SetActiveTake(take); // active item take and editor take may differ
// If timebase in MIDI editor is set to Beats (source), make sure item is croped so full MIDI source is visible beforing getting the source
double itemStart = -1;
double itemEnd = -1;
double takeOffset = 0;
double itemPositionOffset = 0;
if (GetToggleCommandState2(SectionFromUniqueID(SECTION_MIDI_EDITOR), 40470) > 0) // Timebase: Beats(source)
{
itemStart = GetMediaItemInfo_Value(item, "D_POSITION");
itemEnd = itemStart + GetMediaItemInfo_Value(item, "D_LENGTH");
takeOffset = GetMediaItemTakeInfo_Value(take, "D_STARTOFFS");
double sourceLenPPQ = GetMidiSourceLengthPPQ(take, NULL);
if (takeOffset != 0)
SetMediaItemTakeInfo_Value(take, "D_STARTOFFS", 0);
double itemSourceStart = MIDI_GetProjTimeFromPPQPos(take, 0);
if (itemSourceStart < 0)
{
itemPositionOffset = abs(itemSourceStart);
SetMediaItemInfo_Value(item, "D_POSITION", itemStart + itemPositionOffset);
itemSourceStart = MIDI_GetProjTimeFromPPQPos(take, 0);
}
SetMediaItemInfo_Value(item, "D_POSITION", itemSourceStart);
SetMediaItemInfo_Value(item, "D_LENGTH", MIDI_GetProjTimeFromPPQPos(take, sourceLenPPQ) - itemSourceStart);
}
double effectiveTakeLen = EffectiveMidiTakeEnd(take, true, true, true) - GetMediaItemInfo_Value(item, "D_POSITION");
PCM_source* src = DuplicateSource((PCM_source*)item); // must be item source otherwise item/take volume won't get accounted for
if (src && effectiveTakeLen > 0)
{
GetSetMediaItemInfo((MediaItem*)src, "D_POSITION", &g_d0);
GetSetMediaItemInfo((MediaItem*)src, "D_LENGTH", &effectiveTakeLen);
if (!g_ItemPreview.src)
{
#ifdef _WIN32
InitializeCriticalSection(&g_ItemPreview.cs);
#else
pthread_mutex_init(&g_ItemPreview.mutex, NULL);
#endif
g_ItemPreview.loop = false;
}
g_ItemPreview.src = src;
g_ItemPreview.m_out_chan = (track) ? (-1) : (0);
g_ItemPreview.curpos = startOffset;
g_ItemPreview.volume = volume;
g_ItemPreview.preview_track = track;
// Pause before preview otherwise MidiTakePreviewPlayState will stop it
g_itemPreviewPaused = pauseDuringPrev;
if (g_itemPreviewPaused && IsPlaying(NULL) && !IsPaused(NULL))
OnPauseButton();
if (g_ItemPreview.preview_track)
g_itemPreviewPlaying = !!PlayTrackPreview2Ex(NULL, &g_ItemPreview, 1, measureSync);
else
g_itemPreviewPlaying = !!PlayPreviewEx(&g_ItemPreview, 1, measureSync);
if (g_itemPreviewPlaying)
{
plugin_register("timer",(void*)MidiTakePreviewTimer);
RegisterCsurfPlayState(true, MidiTakePreviewPlayState);
}
else
delete g_ItemPreview.src;
}
if (itemStart != -1)
{
SetMediaItemInfo_Value(item, "D_POSITION", itemStart + itemPositionOffset);
SetMediaItemInfo_Value(item, "D_LENGTH", itemEnd - itemStart);
if (itemPositionOffset != 0) SetMediaItemInfo_Value(item, "D_POSITION", itemStart);
if (takeOffset != 0) SetMediaItemTakeInfo_Value(take, "D_STARTOFFS", takeOffset);
}
SetActiveTake(oldTake);
GetSetMediaItemInfo(item, "B_MUTE", &itemMuteState);
PreventUIRefresh(-1);
}
}
