Microsoft MPEG-2 Encoder
Applies to: desktop apps only
The Microsoft MPEG-2 Encoder filter encodes MPEG-2 audio and video and multiplexes the streams to generate an MPEG-2 program stream or transport stream.
Note This filter is not supported on IA-64-based platforms.
| Filter Information | |
|---|---|
| Filter Interfaces |
IEncoderAPI |
| Input Pin Media Types | See Remarks |
| Input Pin Interfaces | |
| Output Pin Media Types | See Remarks |
| Output Pin Interfaces | |
| Filter CLSID | CLSID_CMPEG2EncoderDS (declared in wmcodecdsp.h) |
| Executable | msmpeg2enc.dll |
| Merit | MERIT_DO_NOT_USE |
| Filter Category | CLSID_LegacyAmFilterCategory |
Remarks
This filter combines the encoding functionality of two other filters:
Except as noted, this filter supports the same encoding features as those two encoders.
Initially the filter has one input pin, which can accept audio or video input. When that pin is connected, the filter creates a second input pin. If the first input pin receives audio, the second input pin accepts only video, and vice versa. Each input pin supports the same media types as the corresponding encoder filter.
If only one input pin is connected, the filter supports the same output types as the corresponding audio or video encoder. If both pins are connected, the filter supports the following kinds of output:
- Audio-visual in an MPEG-2 program stream
- Audio-visual in an MPEG-2 transport stream
These correspond to the following output types:
- MEDIATYPE_Stream, MEDIASUBTYPE_MPEG2_PROGRAM
- MEDIATYPE_Stream, MEDIASUBTYPE_MPEG2_TRANSPORT
This filter cannot multiplex streams that were previously encoded. The input streams must be uncompressed audio/video, which the filter encodes before multiplexing. The multiplexed stream is limited to one program, containing up to one audio and one video stream.
Codec Properties
The filter supports the combined properties of the MPEG-2 Audio Encoder and MPEG-2 Video Encoder filters, with the following difference:
- The AVEncCommonMeanBitRate property sets the average bit rate for the video stream.
- The AVEncAudioMeanBitRate property sets the average bit rate for the audio stream.
Requirements
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Minimum supported client | Windows Vista Home Premium, Windows Vista Ultimate, Windows 7 Home Premium, Windows 7 Business, Windows 7 Enterprise, Windows 7 Ultimate |
|---|---|
|
Minimum supported server | None supported |
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Header |
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See also
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Build date: 3/6/2012
