This article discusses the definitions for DirectShow-supported interlaced media types, pixel aspect ratios, and the VIDEOINFOHEADER2 and MPEG2VIDEOINFO structures.
DVD Media Types and Formats
The following diagram and tables specify the digital versatile disc (DVD) media types and formats supported by DirectShow.
| Connection | Major type | Subtype |
| A | MEDIATYPE_MPEG2_PES | MEDIASUBTYPE_MPEG2_VIDEO |
| B | MEDIATYPE_MPEG2_PES | MEDIASUBTYPE_DVD_SUBPICTURE |
| C | MEDIATYPE_MPEG2_PES | MEDIASUBTYPE_DOLBY_AC3 |
| C | MEDIATYPE_MPEG2_PES | MEDIASUBTYPE_MPEG2_AUDIO |
| C | MEDIATYPE_MPEG2_PES | MEDIASUBTYPE_DVD_LPCM_AUDIO |
| D | MEDIATYPE_AUDIO | NULL |
| E | MEDIATYPE_AUXLine21Data | MEDIASUBTYPE_Line21_GOPPacket |
| F | MEDIATYPE_VIDEO | MEDIASUBTYPE_VideoPort — see Note |
| G | MEDIATYPE_VIDEO | Standard video subtypes |
| H | MEDIATYPE_VIDEO | MEDIASUBTYPE_Overlay |
| Connection | Format block type | Format block structure |
| A | FORMAT_MPEG2Video | MPEG2VIDEOINFO |
| B | FORMAT_VideoInfo2 | VIDEOINFOHEADER2 |
| C | FORMAT_WaveFormatEx | WAVEFORMATEX |
| C | FORMAT_WaveFormatEx | WAVEFORMATEX |
| D | FORMAT_WaveFormatEx | WAVEFORMATEX |
| E | FORMAT_VideoInfo2 | VIDEOINFOHEADER2 |
| F | FORMAT_VideoInfo2 | VIDEOINFOHEADER2 |
| G | FORMAT_VideoInfo2 | VIDEOINFOHEADER2 |
| H | FORMAT_VideoInfo | VIDEOINFO |
Note: DirectShow determines the appropriate video port pixel formats during transport phase negotiation with the IVPConfig interface.
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