marko10_000
/
wine-wine
forked from Mirrors/wine-wine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

qedit: Implement buffering in SampleGrabber.

oldstable
Paul Chitescu 2010-03-12 14:15:51 +02:00 committed by Alexandre Julliard
parent 2ad03b9b74
commit 029bc761db
1 changed files with 65 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
dlls/qedit/samplegrabber.c
View File

@ -365,6 +365,7 @@ typedef struct _SG_Impl {
const IMemInputPinVtbl* IMemInputPin_Vtbl;
/* TODO: IMediaPosition, IMediaSeeking, IQualityControl */
LONG refCount;
CRITICAL_SECTION critSect;
FILTER_INFO info;
FILTER_STATE state;
AM_MEDIA_TYPE mtype;
@ -376,6 +377,8 @@ typedef struct _SG_Impl {
ISampleGrabberCB *grabberIface;
LONG grabberMethod;
LONG oneShot;
LONG bufferLen;
void* bufferData;
} SG_Impl;
enum {
@ -417,6 +420,10 @@ static void SampleGrabber_cleanup(SG_Impl *This)
ISampleGrabberCB_Release(This->grabberIface);
if (This->mtype.pbFormat)
CoTaskMemFree(This->mtype.pbFormat);
if (This->bufferData)
CoTaskMemFree(This->bufferData);
This->critSect.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&This->critSect);
}
/* Common helper AddRef called from all interfaces */
@ -475,11 +482,31 @@ static HRESULT SampleGrabber_query(SG_Impl *This, REFIID riid, void **ppvObject)
return E_NOINTERFACE;
}
/* Helper that calls installed sample callbacks */
/* Helper that buffers data and/or calls installed sample callbacks */
static void SampleGrabber_callback(SG_Impl *This, IMediaSample *sample)
{
double time = 0.0;
REFERENCE_TIME tStart, tEnd;
if (This->bufferLen >= 0) {
BYTE *data = 0;
long size = IMediaSample_GetActualDataLength(sample);
if (size >= 0 && SUCCEEDED(IMediaSample_GetPointer(sample, &data))) {
if (!data)
size = 0;
EnterCriticalSection(&This->critSect);
if (This->bufferLen != size) {
if (This->bufferData)
CoTaskMemFree(This->bufferData);
This->bufferData = size ? CoTaskMemAlloc(size) : NULL;
This->bufferLen = size;
}
if (size)
CopyMemory(This->bufferData, data, size);
LeaveCriticalSection(&This->critSect);
}
}
if (!This->grabberIface)
return;
if (SUCCEEDED(IMediaSample_GetTime(sample, &tStart, &tEnd)))
time = 1e-7 * tStart;
switch (This->grabberMethod) {
@ -781,11 +808,16 @@ SampleGrabber_ISampleGrabber_GetConnectedMediaType(ISampleGrabber *iface, AM_MED
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_SetBufferSamples(ISampleGrabber *iface, BOOL bufferEm)
{
TRACE("(%u)\n", bufferEm);
SG_Impl *This = impl_from_ISampleGrabber(iface);
TRACE("(%p)->(%u)\n", This, bufferEm);
EnterCriticalSection(&This->critSect);
if (bufferEm) {
FIXME("buffering not implemented\n");
return E_NOTIMPL;
if (This->bufferLen < 0)
This->bufferLen = 0;
}
else
This->bufferLen = -1;
LeaveCriticalSection(&This->critSect);
return S_OK;
}
@ -793,10 +825,29 @@ SampleGrabber_ISampleGrabber_SetBufferSamples(ISampleGrabber *iface, BOOL buffer
static HRESULT WINAPI
SampleGrabber_ISampleGrabber_GetCurrentBuffer(ISampleGrabber *iface, LONG *bufSize, LONG *buffer)
{
FIXME("(%p, %p): stub\n", bufSize, buffer);
SG_Impl *This = impl_from_ISampleGrabber(iface);
HRESULT ret = S_OK;
TRACE("(%p)->(%p, %p)\n", This, bufSize, buffer);
if (!bufSize)
return E_POINTER;
return E_INVALIDARG;
EnterCriticalSection(&This->critSect);
if (!This->pin_in.pair)
ret = VFW_E_NOT_CONNECTED;
else if (This->bufferLen < 0)
ret = E_INVALIDARG;
else if (This->bufferLen == 0)
ret = VFW_E_WRONG_STATE;
else {
if (buffer) {
if (*bufSize >= This->bufferLen)
CopyMemory(buffer, This->bufferData, This->bufferLen);
else
ret = E_OUTOFMEMORY;
}
*bufSize = This->bufferLen;
}
LeaveCriticalSection(&This->critSect);
return ret;
}
/* ISampleGrabber */
@ -900,8 +951,7 @@ SampleGrabber_IMemInputPin_Receive(IMemInputPin *iface, IMediaSample *sample)
return E_POINTER;
if ((This->state != State_Running) || (This->oneShot == OneShot_Past))
return S_FALSE;
if (This->grabberIface)
SampleGrabber_callback(This, sample);
SampleGrabber_callback(This, sample);
hr = This->memOutput ? IMemInputPin_Receive(This->memOutput, sample) : S_OK;
if (This->oneShot == OneShot_Wait) {
This->oneShot = OneShot_Past;
@ -917,16 +967,14 @@ static HRESULT WINAPI
SampleGrabber_IMemInputPin_ReceiveMultiple(IMemInputPin *iface, IMediaSample **samples, LONG nSamples, LONG *nProcessed)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
LONG idx;
TRACE("(%p)->(%p, %u, %p) output = %p, grabber = %p\n", This, samples, nSamples, nProcessed, This->memOutput, This->grabberIface);
if (!samples || !nProcessed)
return E_POINTER;
if ((This->state != State_Running) || (This->oneShot == OneShot_Past))
return S_FALSE;
if (This->grabberIface) {
LONG idx;
for (idx = 0; idx < nSamples; idx++)
SampleGrabber_callback(This, samples[idx]);
}
for (idx = 0; idx < nSamples; idx++)
SampleGrabber_callback(This, samples[idx]);
return This->memOutput ? IMemInputPin_ReceiveMultiple(This->memOutput, samples, nSamples, nProcessed) : S_OK;
}
@ -1405,6 +1453,8 @@ HRESULT SampleGrabber_create(IUnknown *pUnkOuter, LPVOID *ppv)
obj->pin_out.name = pin_out_name;
obj->pin_out.sg = obj;
obj->pin_out.pair = NULL;
InitializeCriticalSection(&obj->critSect);
obj->critSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": SG_Impl.critSect");
obj->info.achName[0] = 0;
obj->info.pGraph = NULL;
obj->state = State_Stopped;
@ -1417,6 +1467,8 @@ HRESULT SampleGrabber_create(IUnknown *pUnkOuter, LPVOID *ppv)
obj->grabberIface = NULL;
obj->grabberMethod = -1;
obj->oneShot = OneShot_None;
obj->bufferLen = -1;
obj->bufferData = NULL;
*ppv = obj;
return S_OK;