//------------------------------------------------------------------------------
// Name: DeleteAttrib()
// Desc: Delete the attribute at the specified index.
//------------------------------------------------------------------------------
bool DeleteAttrib(string pwszFileName, ushort wStreamNum, ushort wAttribIndex)
{
try
{
IWMMetadataEditor MetadataEditor;
IWMHeaderInfo3 HeaderInfo3;
WMFSDKFunctions.WMCreateEditor(out MetadataEditor);
MetadataEditor.Open(pwszFileName);
HeaderInfo3 = ( IWMHeaderInfo3 )MetadataEditor;
HeaderInfo3.DeleteAttribute(wStreamNum, wAttribIndex);
MetadataEditor.Flush();
MetadataEditor.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
return(true);
}
//------------------------------------------------------------------------------
// Name: ShowAttributes3()
// Desc: Displays all attributes for the specified stream, with support
// for GetAttributeByIndexEx.
//------------------------------------------------------------------------------
bool ShowAttributes3(string pwszFileName, ushort wStreamNum)
{
try
{
IWMMetadataEditor MetadataEditor;
IWMHeaderInfo3 HeaderInfo3;
ushort wAttributeCount = 0;
WMFSDKFunctions.WMCreateEditor(out MetadataEditor);
MetadataEditor.Open(pwszFileName);
HeaderInfo3 = ( IWMHeaderInfo3 )MetadataEditor;
HeaderInfo3.GetAttributeCountEx(wStreamNum, out wAttributeCount);
PrintListHeader();
for (ushort wAttribIndex = 0; wAttribIndex < wAttributeCount; wAttribIndex++)
{
WMT_ATTR_DATATYPE wAttribType;
ushort wLangIndex = 0;
string pwszAttribName = null;
byte[] pbAttribValue = null;
ushort wAttribNameLen = 0;
uint dwAttribValueLen = 0;
HeaderInfo3.GetAttributeByIndexEx(wStreamNum,
wAttribIndex,
pwszAttribName,
ref wAttribNameLen,
out wAttribType,
out wLangIndex,
pbAttribValue,
ref dwAttribValueLen);
pwszAttribName = new String(( char )0, wAttribNameLen);
pbAttribValue = new byte[dwAttribValueLen];
HeaderInfo3.GetAttributeByIndexEx(wStreamNum,
wAttribIndex,
pwszAttribName,
ref wAttribNameLen,
out wAttribType,
out wLangIndex,
pbAttribValue,
ref dwAttribValueLen);
PrintAttribute(wAttribIndex, wStreamNum, pwszAttribName, wAttribType, 0, pbAttribValue, dwAttribValueLen);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
return(true);
}
public void GetMetadata()
{
try
{
String filename = @"E:\Music\Album Leaf\Vermillion .WMA";
ushort wStreamNum = 0;
IWMMetadataEditor MetadataEditor;
IWMHeaderInfo3 HeaderInfo3;
ushort wAttributeCount;
WMFSDKFunctions.WMCreateEditor(out MetadataEditor);
MetadataEditor.Open(filename);
HeaderInfo3 = (IWMHeaderInfo3)MetadataEditor;
HeaderInfo3.GetAttributeCount(wStreamNum, out wAttributeCount);
PrintListHeader();
for (ushort wAttribIndex = 0; wAttribIndex < wAttributeCount; wAttribIndex++)
{
WMT_ATTR_DATATYPE wAttribType;
string pwszAttribName = null;
byte[] pbAttribValue = null;
ushort wAttribNameLen = 0;
ushort wAttribValueLen = 0;
HeaderInfo3.GetAttributeByIndex(wAttribIndex,
ref wStreamNum,
pwszAttribName,
ref wAttribNameLen,
out wAttribType,
pbAttribValue,
ref wAttribValueLen);
pbAttribValue = new byte[wAttribValueLen];
pwszAttribName = new String((char)0, wAttribNameLen);
HeaderInfo3.GetAttributeByIndex(wAttribIndex,
ref wStreamNum,
pwszAttribName,
ref wAttribNameLen,
out wAttribType,
pbAttribValue,
ref wAttribValueLen);
PrintAttribute(wAttribIndex, wStreamNum, pwszAttribName, wAttribType, 0, pbAttribValue, wAttribValueLen);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
//------------------------------------------------------------------------------
// Name: AddAttrib()
// Desc: Add an attribute with the specifed language index.
//------------------------------------------------------------------------------
bool AddAttrib(string pwszFileName, ushort wStreamNum, string pwszAttribName,
ushort wAttribType, string pwszAttribValue, ushort wLangIndex)
{
try
{
IWMMetadataEditor MetadataEditor;
IWMHeaderInfo3 HeaderInfo3;
byte[] pbAttribValue;
int nAttribValueLen;
WMT_ATTR_DATATYPE AttribDataType = ( WMT_ATTR_DATATYPE )wAttribType;
ushort wAttribIndex = 0;
if (!TranslateAttrib(AttribDataType, pwszAttribValue, out pbAttribValue, out nAttribValueLen))
{
return(false);
}
WMFSDKFunctions.WMCreateEditor(out MetadataEditor);
MetadataEditor.Open(pwszFileName);
HeaderInfo3 = ( IWMHeaderInfo3 )MetadataEditor;
HeaderInfo3.AddAttribute(wStreamNum,
pwszAttribName,
out wAttribIndex,
AttribDataType,
wLangIndex,
pbAttribValue,
(uint)nAttribValueLen);
MetadataEditor.Flush();
MetadataEditor.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
return(true);
}
