Requires Windows XP, Windows Vista, or Windows 7. If you obtain an IMFTransform interface on an Audio 9 encoder or decoder, it behaves as an MFT.
Windows media player 9 codec windows#
If you obtain an IMFTransform interface or an IPropertyStore interface on an Audio 9 encoder or decoder, it behaves as an MFT.īy default, a Windows media Audio 9 encoder or decoder behaves as a DMO. Operating systemĪ Windows Media Audio 9 encoder or decoder always behaves as a DMO.īy default, a Windows Media Audio 9 encoder or decoder behaves as a DMO. The following table shows the conditions under which an Audio 9 encoder or decoder behaves as a DMO or an MFT. Specifies the maximum latency for the decoder, in milliseconds.Īn audio encoder or decoder object exposes the IMediaObject interface so that the object can be used as a DirectX Media Object (DMO), and the IMFTransform interface so that the object can be used as a Media Foundation Transform (MFT).Ī Windows Media Audio 9 encoder or decoder behaves as a DMO or an MFT depending on which interfaces you obtain and which version of Windows is running. The following properties can be set on the Windows Media Audio 9 decoder. Specifies the maximum number of additional PCM samples that might be returned at the end of decoding a file. MFPKEY_Decoder_MaxNumPCMSamplesWithPaddedSilence Addeddate 15:43:55 Identifier WindowsMediaPlayer9 Identifier-ark ark. The following properties can be read on the Windows Media Audio 9 decoder. Windows Media Player 9 English - Spanish Windows XP, 1995, 1998 Netscape Plugin. Specifies the WAVEFORMATEX structure describing the input audio content. Specifies the average bytes per second in a quality-based variable-bit-rate (VBR) audio stream. Specifies whether the codec will use variable-bit-rate (VBR) encoding. Specifies the peak bit rate, in bits per second, used for constrained 2-pass variable-bit-rate (VBR) encoding. Specifies the average bit rate, in bits per second, used for 2-pass variable-bit-rate (VBR) encoding. Specifies the number of passes that the codec will use to encode the content.
Specifies the maximum number of passes supported by the codec. Specifies the maximum latency for the encoder, in milliseconds. Specifies the device conformance template to which the encoded content conforms. Specifies the buffer window, in milliseconds, of a constrained variable-bit-rate (VBR) stream at its peak bit rate (specified by MFPKEY_RMAX). Specifies the buffer window, in milliseconds, of a constrained variable-bit-rate (VBR) stream at its average bit rate (specified by MFPKEY_RAVG). The following properties can be set on the Windows Media Audio 9 encoder. Windows Media Audio 9 encoded content is identified by the audio tag 0x161. The decoder object is instantiated using the class identifier CLSID_CWMADecMediaObject. The Windows Media Audio 9 encoder object is instantiated using the class identifier CLSID_CWMAEncMediaObject.
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