MPEG-2 Splitter Filter Media Types

The MPEG-2 Splitter filter currently supports audio and video. AC3 is supported as a substream as defined by DVD. MPEG-2 audio is also supported.

For video the type is as follows:

	PES output	Payload output
Type	MEDIATYPE_MPEG2_PES	MEDIATYPE_Video
Subtype	MEDIASUBTYPE_MPEG2_VIDEO	MEDIASUBTYPE_MPEG2_VIDEO
Format	FORMAT_MPEG2Video	FORMAT_MPEG2Video
Format block	MPEG2VIDEOINFO	MPEG2VIDEOINFO

For AC3 audio the type is as follows:

	PES output	Payload output
Type	MEDIATYPE_MPEG2_PES	MEDIATYPE_Audio
Subtype	MEDIASUBTYPE_DOLBY_AC3	MEDIASUBTYPE_DOLBY_AC3
Format	FORMAT_WaveFormatEx	FORMAT_WaveFormatEx
Format block	WAVEFORMATEX	WAVEFORMATEX

The WAVEFORMATEX structure's wFormatTag member for AC3 is currently WAVE_FORMAT_UNKNOWN, but it might change so you should check for it.

For MPEG-2 the type is as follows:

	PES output	Payload output
Type	MEDIATYPE_MPEG2_PES	MEDIATYPE_Audio
Subtype	MEDIASUBTYE_MPEG2_AUDIO	MEDIASUBTYPE_MPEG2_AUDIO
Format	FORMAT_WaveFormatEx	FORMAT_WaveFormatEx
Format block	WAVEFORMATEX	WAVEFORMATEX

The WAVEFORMATEX structure's wFormatTag member for MPEG-2 Audio is currently WAVE_FORMAT_UNKNOWN, but it might change so you should check for it.

The MPEG-2 Splitter assumes that streams D0-DF are used for the multichannel extension stream, as they are for DVD MPEG-2 audio, so, whenever stream Cx is selected, the splitter forwards the packets for stream Dx as well.

For LPCM audio the type is as follows:

	PES output	Payload output
Type	MEDIATYPE_MPEG2_PES	MEDIATYPE_Audio
Subtype	MEDIASUBTYPE_DVD_LPCM_AUDIO	MEDIASUBTYPE_DVD_LPCM_AUDIO
Format	FORMAT_WaveFormatEx	FORMAT_WaveFormatEx
Format block	WAVEFORMATEX	WAVEFORMATEX

The WAVEFORMATEX structure's wFormatTag member for LPCM audio is currently WAVE_FORMAT_UNKNOWN, but it might change so you should check for it.