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quartz: Implement VideoRenderer_GetCurrentImage.

This commit is contained in:
Maarten Lankhorst 2008-06-10 18:45:25 +02:00 committed by Alexandre Julliard
parent 0bdc8bc5c1
commit dae09d000c
1 changed files with 78 additions and 2 deletions
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80
dlls/quartz/videorenderer.c
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@ -87,6 +87,9 @@ typedef struct VideoRendererImpl
BOOL bAggregatable;
REFERENCE_TIME rtLastStop;
MediaSeekingImpl mediaSeeking;
/* During pause we can hold a single sample, for use in GetCurrentImage */
IMediaSample *sample_held;
} VideoRendererImpl;
static LRESULT CALLBACK VideoWndProcA(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
@ -408,6 +411,15 @@ static HRESULT VideoRenderer_Sample(LPVOID iface, IMediaSample * pSample)
}
#endif
if (This->state == State_Paused)
{
if (This->sample_held)
IMediaSample_Release(This->sample_held);
This->sample_held = pSample;
IMediaSample_AddRef(pSample);
}
if (This->pClock && This->state == State_Running)
{
REFERENCE_TIME time, trefstart, trefstop;
@ -585,6 +597,7 @@ HRESULT VideoRenderer_create(IUnknown * pUnkOuter, LPVOID * ppv)
MediaSeekingImpl_Init((IBaseFilter*)pVideoRenderer, VideoRendererImpl_Change, VideoRendererImpl_Change, VideoRendererImpl_Change, &pVideoRenderer->mediaSeeking, &pVideoRenderer->csFilter);
pVideoRenderer->mediaSeeking.lpVtbl = &VideoRendererImpl_Seeking_Vtbl;
pVideoRenderer->sample_held = NULL;
*ppv = (LPVOID)pVideoRenderer;
}
else
@ -774,9 +787,15 @@ static HRESULT WINAPI VideoRenderer_Stop(IBaseFilter * iface)
EnterCriticalSection(&This->csFilter);
{
This->state = State_Stopped;
if (This->sample_held)
{
IMediaSample_Release(This->sample_held);
This->sample_held = NULL;
}
}
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
@ -812,6 +831,12 @@ static HRESULT WINAPI VideoRenderer_Run(IBaseFilter * iface, REFERENCE_TIME tSta
This->rtStreamStart = tStart;
This->state = State_Running;
if (This->sample_held)
{
IMediaSample_Release(This->sample_held);
This->sample_held = NULL;
}
}
LeaveCriticalSection(&This->csFilter);
@ -1438,8 +1463,59 @@ static HRESULT WINAPI Basicvideo_GetCurrentImage(IBasicVideo *iface,
long *pBufferSize,
long *pDIBImage) {
ICOM_THIS_MULTI(VideoRendererImpl, IBasicVideo_vtbl, iface);
BITMAPINFOHEADER *bmiHeader;
LONG needed_size;
AM_MEDIA_TYPE *amt = &This->pInputPin->pin.mtCurrent;
char *ptr;
FIXME("(%p/%p)->(%p, %p): stub !!!\n", This, iface, pBufferSize, pDIBImage);
EnterCriticalSection(&This->csFilter);
if (!This->sample_held)
{
LeaveCriticalSection(&This->csFilter);
return (This->state == State_Paused ? E_UNEXPECTED : VFW_E_NOT_PAUSED);
}
FIXME("(%p/%p)->(%p, %p): partial stub\n", This, iface, pBufferSize, pDIBImage);
if (IsEqualIID(&amt->formattype, &FORMAT_VideoInfo))
{
bmiHeader = &((VIDEOINFOHEADER *)amt->pbFormat)->bmiHeader;
}
else if (IsEqualIID(&amt->formattype, &FORMAT_VideoInfo2))
{
bmiHeader = &((VIDEOINFOHEADER2 *)amt->pbFormat)->bmiHeader;
}
else
{
FIXME("Unknown type %s\n", debugstr_guid(&amt->subtype));
LeaveCriticalSection(&This->csFilter);
return VFW_E_RUNTIME_ERROR;
}
needed_size = bmiHeader->biSize;
needed_size += IMediaSample_GetActualDataLength(This->sample_held);
if (!pDIBImage)
{
*pBufferSize = needed_size;
LeaveCriticalSection(&This->csFilter);
return S_OK;
}
if (needed_size < *pBufferSize)
{
ERR("Buffer too small %u/%lu\n", needed_size, *pBufferSize);
LeaveCriticalSection(&This->csFilter);
return E_FAIL;
}
*pBufferSize = needed_size;
memcpy(pDIBImage, bmiHeader, bmiHeader->biSize);
IMediaSample_GetPointer(This->sample_held, (BYTE **)&ptr);
memcpy((char *)pDIBImage + bmiHeader->biSize, ptr, IMediaSample_GetActualDataLength(This->sample_held));
LeaveCriticalSection(&This->csFilter);
return S_OK;
}