This filter decodes MPEG-1, MPEG-2, H.264 video.
Note Decoding of H.264 video requires Windows 7.
Note This filter is not supported on IA-64-based platforms.
In the registry, the friendly name of this filter is "Microsoft DTV-DVD Video Decoder".
| Filter Information |
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| Filter Interfaces |
IAMDecoderCaps
IBaseFilter
ICodecAPI
|
| Input Pin Media Types | Video input pin:
- MEDIATYPE_DVD_ENCRYPTED_PACK, MEDIASUBTYPE_MPEG2_VIDEO
- MEDIATYPE_MPEG2_PES, MEDIASUBTYPE_MPEG2_VIDEO
- MEDIATYPE_Video, MEDIASUBTYPE_MPEG1Packet
- MEDIATYPE_Video, MEDIASUBTYPE_MPEG1Payload
- MEDIATYPE_Video, MEDIASUBTYPE_MPEG2_VIDEO
Subpicture input pin:
- MEDIATYPE_DVD_ENCRYPTED_PACK, MEDIASUBTYPE_DVD_SUBPICTURE
Starting in Windows 7, the video input pin also supports the following input types:
- MEDIATYPE_Video, MEDIASUBTYPE_AVC1
- MEDIATYPE_Video, MEDIASUBTYPE_H264
- MEDIATYPE_Video, MEDIASUBTYPE_h264
- MEDIATYPE_Video, MEDIASUBTYPE_X264
- MEDIATYPE_Video, MEDIASUBTYPE_x264
See H.264 Video Types for more information. The input media type can change dynamically between MPEG2 and H.264 types.
|
| Input Pin Interfaces |
ICodecAPI
IKsPropertySet
IMemInputPin
IMFSampleProtection
IPin
IQualityControl
|
| Output Pin Media Types | Video output pin:
- MEDIATYPE_Video, DXVA_ModeMPEG2_A (DXVA 1.0)
- MEDIATYPE_Video, DXVA_ModeMPEG2_C (DXVA 1.0)
- MEDIATYPE_Video, MEDIASUBTYPE_I420 (Software decode or DXVA2.0)
- MEDIATYPE_Video, MEDIASUBTYPE_NV12 (Software decode or DXVA2.0)
- MEDIATYPE_Video, MEDIASUBTYPE_YUY2 (Software decode or DXVA2.0)
- MEDIATYPE_Video, MEDIASUBTYPE_IMC3 (DXVA2.0 only)
- MEDIATYPE_Video, MEDIASUBTYPE_IMC4 (DXVA2.0 only)
- MEDIATYPE_Video, MEDIASUBTYPE_S340 (DXVA2.0 only)
- MEDIATYPE_Video, MEDIASUBTYPE_YV12 (DXVA2.0 only)
Line-21 output pin:
- MEDIATYPE_AUXLine21Data, MEDIASUBTYPE_Line21_GOPPacket
Subpicture output pin:
- MEDIATYPE_Video, MEDIASUBTYPE_AI44
- MEDIATYPE_Video, MEDIASUBTYPE_ARGB32
- MEDIATYPE_Video, MEDIASUBTYPE_ARGB4444
- MEDIATYPE_Video, MEDIASUBTYPE_AYUV
|
| Output Pin Interfaces |
IAMVideoAcceleratorNotify (video output pin only)
IKsPropertySet
IMediaSeeking
IPin
IQualityControl
IVPConfig
|
| Filter CLSID | CLSID_CMPEG2VidDecoderDS (defined in wmcodecdsp.h) |
| Executable | msmpeg2vdec.dll |
| Merit | MERIT_NORMAL - 1 |
| Filter Category | CLSID_LegacyAmFilterCategory |
Remarks
This filter has two input pins and three output pins.
Input pins:
- Video input
- Subpicture input
Output pins:
- Video output
- Line-21 output
- Subpicture output
The filter does not create the subpicture output pin unless the video input pin is connected with a MEDIATYPE_DVD_ENCRYPTED_PACK media type.
MPEG-1/2 Support
For MPEG-1 and MPEG-2, the decoder supports the following formats:
| Profiles/Levels |
Any combination of the following profiles and levels:
- Profiles: Simple, Main
- Levels: Low, Main, High, High 1440
|
| Chroma Formats | 4:2:0 chroma |
| Maximum Resolution | 1920 × 1088 pixels |
| DXVA | The decoder supports DirectX Video Acceleration (DXVA) version 1 and version 2. |
The decoder does not support scalable bitstreams. The input must be an elementary video stream.
The decoder does not support 4:2:2 chroma formats.
H.264 Support
For H.264, the decoder supports the following formats:
| Profiles/Levels | Baseline, Main, and High profiles, up to level 5.1. (See ITU-T H.264 specification for details.) |
| Chroma Formats | 4:2:0 chroma or monochrome |
| Maximum Resolution | 1920 × 1088 pixels |
| DXVA | The decoder supports DXVA version 2, but not DXVA version 1. DXVA decoding is supported only for Main-compatible Baseline, Main, and High profile bitstreams. (Main-compatible Baseline bitstreams are defined as profile_idc=66 and constrained_set1_flag=1.) |
The decoder does not support Film Grain Technology.
For information about the H.264 media types, see H.264 Video Types.
Codec Properties
The input pins support the following property sets through IKsPropertySet:
The input pins support the following properties through ICodecAPI:
The filter supports the following properties through ICodecAPI:
Requirements
| Minimum supported client | Windows Vista Home Premium, Windows Vista Ultimate, Windows 7 Home Premium, Windows 7 Business, Windows 7 Enterprise, Windows 7 Ultimate |
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| Minimum supported server | None supported |
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| Header | Wmcodecdsp.h |
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See Also
- DirectShow Filters
- DVD Media Types
- H.264 Video Types
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Build date: 10/19/2009