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The following GUIDs define payload extensions for Advanced Systems Format (ASF) streams.
| Constant | Description |
|---|---|
|
The data indicates the duration, in milliseconds, of the sample contained in the buffer object. |
|
The data indicates whether the sample is a key frame. A value of zero indicates that the sample is not a key frame. A nonzero value indicates that it is a key frame. |
|
The data is a SMPTE time code. |
|
The data in the sample extension specifies the name of the file from which the content in the sample was taken. |
|
The data identifies the type of content that the sample contains. |
|
The data indicates the pixel aspect ratio of the content in the sample. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|