title | description | keywords | topic_type | ms.topic | api_name | api_location | api_type | ms.date | |||||
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KSPROPERTY_VIDEOCOMPRESSION_PFRAMES_PER_KEYFRAME |
The KSPROPERTY\_VIDEOCOMPRESSION\_PFRAMES\_PER\_KEYFRAME property controls the predicted frame (P-Frame) interval. This property must be implemented. |
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11/28/2017 |
The KSPROPERTY_VIDEOCOMPRESSION_PFRAMES_PER_KEYFRAME property controls the predicted frame (P-Frame) interval. This property must be implemented.
Get | Set | Target | Property descriptor type | Property value type |
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Yes |
Yes |
Filter |
LONG |
The property value (operation data) is a LONG that specifies the number of predicted frames per key frame.
The Value member of the KSPROPERTY_VIDEOCOMPRESSION_S structure specifies the number of P-Frames per key frame. If a set request provides a negative Value, the minidriver should set the P-Frame rate to the default value.
Minidrivers that support this property should set the KS_VideoCompressionCaps_CanBFrame flag in the Capabilities member of the KSPROPERTY_VIDEOCOMPRESSION_GETINFO_S structure that retrieves the minidriver's video compression capabilities.
Header |
Ksmedia.h (include Ksmedia.h) |