failed to create MFCreateTranscodeTopology for converting MP4video file to MP3

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video

audio

CreateMediaSource( lpctszInput_i, &pSource );
AUDIO_ATTRIBUTES_t stAudioParam;
SubTypeGUID = MFAudioFormat_MP3;
ContainerTypeGUID = MFTranscodeContainerType_MP3;

hrStatus = MFCreateTranscodeProfile( &pProfile );
hrStatus = MFCreateAttributes( &pAudioAttributes, 7 );
hrStatus = pAudioAttributes->SetGUID( MF_MT_SUBTYPE, SubTypeGUID );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AUDIO_BITS_PER_SAMPLE, uBitsPerSample );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AUDIO_SAMPLES_PER_SECOND, uSamplesPerSec );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AUDIO_NUM_CHANNELS, uNumChannels );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AUDIO_AVG_BYTES_PER_SECOND, uBytesPerSec );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AUDIO_BLOCK_ALIGNMENT, uAudioBlockAllign );
hrStatus = pAudioAttributes->SetUINT32( MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION, uProfile );
hrStatus = pProfile->SetAudioAttributes( pAudioAttributes );
hrStatus = MFCreateAttributes( &pContainer, 1 );
hrStatus = pContainer->SetGUID( MF_TRANSCODE_CONTAINERTYPE, ContainerTypeGUID );
hrStatus = pProfile->SetContainerAttributes( pContainer );
hrStatus = MFCreateTranscodeTopology( pSource, lpctszOutput_i, pProfile, &pTopology );

But MFCreateTranscodeTopology return MF_E_NOT_FOUND error. Whether I need to set any other parameters? Why this error occurred?
Thanks in Advance...