HRESULT AVIFILE_CreateACMStream(REFIID riid, LPVOID *ppv)
{
IAVIStreamImpl *pstream;
HRESULT hr;
assert(riid != NULL && ppv != NULL);
*ppv = NULL;
pstream = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IAVIStreamImpl));
if (pstream == NULL)
return AVIERR_MEMORY;
pstream->lpVtbl = &iacmst;
hr = IAVIStream_QueryInterface((IAVIStream*)pstream, riid, ppv);
if (FAILED(hr))
HeapFree(GetProcessHeap(), 0, pstream);
return hr;
}
static HRESULT WINAPI IAVIEditStream_fnPaste(IAVIEditStream*iface,LONG*plStart,
LONG*plLength,PAVISTREAM pSource,
LONG lStart,LONG lLength)
{
IAVIEditStreamImpl *This = impl_from_IAVIEditStream(iface);
AVISTREAMINFOW srcInfo;
IAVIEditStreamImpl *pEdit = NULL;
PAVISTREAM pStream;
DWORD startPos, endPos, streamNr, nStreams;
ULONG n;
TRACE("(%p,%p,%p,%p,%d,%d)\n",iface,plStart,plLength,
pSource,lStart,lLength);
if (pSource == NULL)
return AVIERR_BADHANDLE;
if (plStart == NULL || *plStart < 0)
return AVIERR_BADPARAM;
if (This->sInfo.dwStart + This->sInfo.dwLength < *plStart)
return AVIERR_BADPARAM; /* Can't paste with holes */
if (FAILED(IAVIStream_Info(pSource, &srcInfo, sizeof(srcInfo))))
return AVIERR_ERROR;
if (lStart < srcInfo.dwStart || lStart >= srcInfo.dwStart + srcInfo.dwLength)
return AVIERR_BADPARAM;
if (This->sInfo.fccType == 0) {
/* This stream is empty */
IAVIStream_Info(pSource, &This->sInfo, sizeof(This->sInfo));
This->sInfo.dwStart = *plStart;
This->sInfo.dwLength = 0;
}
if (This->sInfo.fccType != srcInfo.fccType)
return AVIERR_UNSUPPORTED; /* different stream types */
if (lLength == -1) /* Copy the hole stream */
lLength = srcInfo.dwLength;
if (lStart + lLength > srcInfo.dwStart + srcInfo.dwLength)
lLength = srcInfo.dwStart + srcInfo.dwLength - lStart;
if (lLength + *plStart >= 0x80000000)
return AVIERR_MEMORY;
/* streamtype specific tests */
if (srcInfo.fccType == streamtypeVIDEO) {
LONG size;
size = srcInfo.rcFrame.right - srcInfo.rcFrame.left;
if (size != This->sInfo.rcFrame.right - This->sInfo.rcFrame.left)
return AVIERR_UNSUPPORTED; /* FIXME: Can't GetFrame convert it? */
size = srcInfo.rcFrame.bottom - srcInfo.rcFrame.top;
if (size != This->sInfo.rcFrame.bottom - This->sInfo.rcFrame.top)
return AVIERR_UNSUPPORTED; /* FIXME: Can't GetFrame convert it? */
} else if (srcInfo.fccType == streamtypeAUDIO) {
if (!AVIFILE_FormatsEqual(&This->IAVIStream_iface, pSource))
return AVIERR_UNSUPPORTED;
} else {
/* FIXME: streamtypeMIDI and streamtypeTEXT */
return AVIERR_UNSUPPORTED;
}
/* try to get an IEditStreamInternal interface */
if (SUCCEEDED(IAVIStream_QueryInterface(pSource, &IID_IEditStreamInternal, (LPVOID*)&pEdit)))
IAVIEditStream_Release(&pEdit->IAVIEditStream_iface); /* pSource holds a reference */
/* for video must check for change of format */
if (This->sInfo.fccType == streamtypeVIDEO) {
if (! This->bDecompress) {
/* Need to decompress if any of the following conditions matches:
* - pSource is an editable stream which decompresses
* - the nearest keyframe of pSource isn't lStart
* - the nearest keyframe of this stream isn't *plStart
* - the format of pSource doesn't match this one
*/
if ((pEdit != NULL && pEdit->bDecompress) ||
AVIStreamNearestKeyFrame(pSource, lStart) != lStart ||
AVIStreamNearestKeyFrame(&This->IAVIStream_iface, *plStart) != *plStart ||
(This->nStreams > 0 && !AVIFILE_FormatsEqual(&This->IAVIStream_iface, pSource))) {
/* Use first stream part to get format to convert everything to */
AVIFILE_ReadFrame(This, This->pStreams[0].pStream,
This->pStreams[0].dwStart);
/* Check if we could convert the source streams to the desired format... */
if (pEdit != NULL) {
if (FAILED(AVIFILE_FindStreamInTable(pEdit, lStart, &pStream,
&startPos, &streamNr, TRUE)))
return AVIERR_INTERNAL;
for (n = lStart; n < lStart + lLength; streamNr++) {
if (AVIFILE_ReadFrame(This, pEdit->pStreams[streamNr].pStream, startPos) == NULL)
return AVIERR_BADFORMAT;
startPos = pEdit->pStreams[streamNr].dwStart;
n += pEdit->pStreams[streamNr].dwLength;
}
} else if (AVIFILE_ReadFrame(This, pSource, lStart) == NULL)
return AVIERR_BADFORMAT;
This->bDecompress = TRUE;
This->sInfo.fccHandler = 0;
}
} else if (AVIFILE_ReadFrame(This, pSource, lStart) == NULL)
return AVIERR_BADFORMAT; /* Can't convert source to own format */
} /* FIXME: something special for the other formats? */
/* Make sure we have enough memory for parts */
if (pEdit != NULL) {
DWORD nLastStream;
AVIFILE_FindStreamInTable(pEdit, lStart + lLength, &pStream,
&endPos, &nLastStream, TRUE);
AVIFILE_FindStreamInTable(pEdit, lStart, &pStream,
&startPos, &streamNr, FALSE);
if (nLastStream == streamNr)
nLastStream++;
nStreams = nLastStream - streamNr;
} else
nStreams = 1;
if (This->nStreams + nStreams + 1 > This->nTableSize) {
n = This->nStreams + nStreams + 33;
This->pStreams = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->pStreams, n * sizeof(EditStreamTable));
if (This->pStreams == NULL)
return AVIERR_MEMORY;
This->nTableSize = n;
}
if (plLength != NULL)
*plLength = lLength;
/* now do the real work */
if (This->sInfo.dwStart + This->sInfo.dwLength > *plStart) {
AVIFILE_FindStreamInTable(This, *plStart, &pStream,
&startPos, &streamNr, FALSE);
if (startPos != This->pStreams[streamNr].dwStart) {
/* split stream streamNr at startPos */
memmove(This->pStreams + streamNr + nStreams + 1,
This->pStreams + streamNr,
(This->nStreams + nStreams - streamNr + 1) * sizeof(EditStreamTable));
This->pStreams[streamNr + 2].dwLength =
EditStreamEnd(This, streamNr + 2) - startPos;
This->pStreams[streamNr + 2].dwStart = startPos;
This->pStreams[streamNr].dwLength =
startPos - This->pStreams[streamNr].dwStart;
IAVIStream_AddRef(This->pStreams[streamNr].pStream);
streamNr++;
} else {
/* insert before stream at streamNr */
memmove(This->pStreams + streamNr + nStreams, This->pStreams + streamNr,
(This->nStreams + nStreams - streamNr) * sizeof(EditStreamTable));
}
} else /* append the streams */
streamNr = This->nStreams;
if (pEdit != NULL) {
/* insert the parts of the editable stream instead of itself */
AVIFILE_FindStreamInTable(pEdit, lStart + lLength, &pStream,
&endPos, NULL, FALSE);
AVIFILE_FindStreamInTable(pEdit, lStart, &pStream, &startPos, &n, FALSE);
memcpy(This->pStreams + streamNr, pEdit->pStreams + n,
nStreams * sizeof(EditStreamTable));
if (This->pStreams[streamNr].dwStart < startPos) {
This->pStreams[streamNr].dwLength =
EditStreamEnd(This, streamNr) - startPos;
This->pStreams[streamNr].dwStart = startPos;
}
if (endPos < EditStreamEnd(This, streamNr + nStreams))
This->pStreams[streamNr + nStreams].dwLength =
endPos - This->pStreams[streamNr + nStreams].dwStart;
} else {
/* a simple stream */
This->pStreams[streamNr].pStream = pSource;
This->pStreams[streamNr].dwStart = lStart;
This->pStreams[streamNr].dwLength = lLength;
}
for (n = 0; n < nStreams; n++) {
IAVIStream_AddRef(This->pStreams[streamNr + n].pStream);
if (0 < streamNr + n &&
This->pStreams[streamNr + n - 1].pStream != This->pStreams[streamNr + n].pStream) {
This->sInfo.dwFlags |= AVISTREAMINFO_FORMATCHANGES;
This->sInfo.dwFormatChangeCount++;
}
}
This->sInfo.dwEditCount++;
This->sInfo.dwLength += lLength;
This->nStreams += nStreams;
return AVIERR_OK;
}