private void Test()
{
int numCodecs = -1;
m_pCodecInfo.GetCodecInfoCount(MediaType.Video, out numCodecs);
Debug.Assert(numCodecs >= 0);
if (numCodecs > 0)
{
int numFormats = -1;
m_pCodecInfo.GetCodecFormatCount(MediaType.Video, 0, out numFormats);
Debug.Assert(numFormats >= 0);
if (numFormats > 0)
{
// Start testing IWMCodecInfo2
int nameLen = -1;
m_pCodecInfo.GetCodecName(MediaType.Video, 0, null, ref nameLen);
Debug.Assert(nameLen >= 0);
StringBuilder sb = new StringBuilder(nameLen);
m_pCodecInfo.GetCodecName(MediaType.Video, 0, sb, ref nameLen);
Debug.Assert(sb.ToString().Length > 0);
int descLen = -1;
IWMStreamConfig streamConfig;
m_pCodecInfo.GetCodecFormatDesc(MediaType.Video, 0, 0, out streamConfig, null, ref descLen);
Debug.Assert(descLen >= 0);
StringBuilder description = new StringBuilder(descLen);
m_pCodecInfo.GetCodecFormatDesc(MediaType.Video, 0, 0, out streamConfig, description, ref descLen);
Debug.Assert(description.ToString().Length >= 0);
}
}
}
/// <summary>
/// Gets all Windows media Codecs.
/// </summary>
/// <param name="guid">MediaTypes WMMEDIATYPE_Audio or WMMEDIATYPE_Video expected</param>
public static Codec[] GetCodecs(Guid mediaType)
{
IWMCodecInfo2 codecInfo = (IWMCodecInfo2)WM.CreateProfileManager();
int count;
codecInfo.GetCodecInfoCount(mediaType, out count);
var list = new Codec[count];
for (int i = 0; i < count; i++)
{
list[i] = new Codec(codecInfo, i, mediaType);
}
return(list);
}