MF_PD_SAMI_STYLELIST attribute
Contains the friendly names of the Synchronized Accessible Media Interchange (SAMI) styles defined in the SAMI file.
The SAMI Media Source sets this attribute on the presentation descriptor that it creates.
Data type
Byte array
Remarks
The attribute blob has the following structure:
| Data Type | Description | Size (bytes) |
|---|---|---|
| DWORD | Number of style strings. | 4 |
| For each style string: | ||
| DWORD | Size of the string in bytes, including the NULL character. | 4 |
| LPWSTR | Null-terminated wide-character string containing the name of the style. | Varies |
To set the style or retrieve the current style, use the IMFSAMIStyle interface.
The GUID constant for this attribute is exported from mfuuid.lib.
Examples
HRESULT DisplaySAMIStyleNames(IMFPresentationDescriptor *pPD)
{
UINT8 *pBuf = NULL;
UINT32 cbBuf = 0;
HRESULT hr = pPD->GetAllocatedBlob(MF_PD_SAMI_STYLELIST, &pBuf, &cbBuf);
if (SUCCEEDED(hr))
{
DWORD cStyles = ((DWORD*)pBuf)[0];
UINT8 *pStrings = pBuf + sizeof(DWORD);
for (DWORD i = 0; i < cStyles; i++)
{
DWORD cbString = ((DWORD*)pStrings)[0];
pStrings += sizeof(DWORD);
wprintf_s(L"%s\n", (WCHAR*)pStrings);
pStrings += cbString;
}
}
CoTaskMemFree(pBuf);
return hr;
}
Requirements
|
Minimum supported client |
Windows Vista [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps only] |
|
Header |
|
See also
- Alphabetical List of Media Foundation Attributes
- IMFAttributes::GetBlob
- IMFAttributes::SetBlob
- IMFPresentationDescriptor
- Presentation Descriptor Attributes
- SAMI Media Source
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