Sink Writer Attributes
The following attributes can be used to initialize the sink writer.
| Attribute | Description |
|---|---|
| MF_LOW_LATENCY | Enables low-latency processing. |
| MF_READWRITE_DISABLE_CONVERTERS | Enables or disables format conversions by the sink writer. |
| MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS | Enables the sink writer to use hardware-based Media Foundation transforms (MFTs). |
| MF_SINK_WRITER_ASYNC_CALLBACK | Contains a pointer to the application's callback interface for the sink writer. |
| MF_SINK_WRITER_DISABLE_THROTTLING | Specifies whether the sink writer limits the rate of incoming data. |
| MF_TRANSCODE_CONTAINERTYPE | Specifies the container type of the output file. |
| MFT_FIELDOFUSE_UNLOCK_Attribute | Contains an IMFFieldOfUseMFTUnlock pointer, which is used to unlock an MFT with field-of-use restrictions. For more information, see Field of Use Restrictions. |
| MF_SINK_WRITER_D3D_MANAGER | Use this attribute to provide a Direct3D device for any video encoders or media sinks loaded by the sink writer. |
Use these attributes with the following methods and functions:
- IMFReadWriteClassFactory::CreateInstanceFromObject
- IMFReadWriteClassFactory::CreateInstanceFromURL
- MFCreateSinkWriterFromMediaSink
- MFCreateSinkWriterFromURL
To use any of these attributes, first call MFCreateAttributes to create a new attribute store. Then use the IMFAttributes interface to set the desired attributes on the attribute store. Pass the IMFAttributes pointer to the pAttributes parameter of any of the methods or functions listed previously.
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