//指定されたフォーマットに対応するEncoderのCLSIDを取得する
bool GetEncoderClassID(const std::wstring& MimeType,CLSID* ClassID)
{
typedef Gdiplus::ImageCodecInfo CodecInfo;
unsigned EncoderCount,Size;
Gdiplus::GetImageEncodersSize(&EncoderCount,&Size);
if(!Size) return false;
std::vector<unsigned char> Codecs(Size,0);
Gdiplus::GetImageEncoders(EncoderCount,Size,(CodecInfo*)Codecs.data());
auto Codec=std::find_if((CodecInfo*)Codecs.data(),(CodecInfo*)Codecs.data()+EncoderCount,
[&](CodecInfo& Codec){return !MimeType.compare(Codec.MimeType);});
std::memcpy(ClassID,&(*Codec).Clsid,sizeof(CLSID));
return true;
}
// -----------------------------------------------------------------------------
// CMceComAudioStream::UpdateDefaultCodecL
// -----------------------------------------------------------------------------
//
void CMceComAudioStream::UpdateDefaultCodecL()
{
CMceComCodec* highestPrioritySendCodec = NULL;
CMceComCodec* codec = NULL;
const RPointerArray< CMceComCodec >& allCodecs = reinterpret_cast< const RPointerArray<CMceComCodec>& >( Codecs() );
CMceComCodec::TIterator codecs( allCodecs,
CMceComCodec::TIterator::EFilterIsNegotiated );
MCE_ITERATOR_FIND_NEXT( codecs, highestPrioritySendCodec,
highestPrioritySendCodec->SendSupported() );
// If no negotiated send codecs, disable all.
// If send codec changed, enable new one and disable other send codecs.
if ( !highestPrioritySendCodec ||
( highestPrioritySendCodec &&
!highestPrioritySendCodec->iIsEnabled ) )
{
TBool newDefaultCodecSet( EFalse );
codecs.Reset();
codecs.SetFilter( CMceComCodec::TIterator::EFilterNone );
while( codecs.Next( codec ) )
{
if ( !newDefaultCodecSet && codec->iIsNegotiated && codec->SendSupported() )
{
codec->SetEnabled( ETrue );
newDefaultCodecSet = ETrue;
}
else
{
codec->SetEnabled( EFalse );
}
}
}
}
