[FFmpeg-trac] #8603(avfilter:new): QSV VPPFrameRateConversion enhancements

[FFmpeg]

#8603: QSV VPPFrameRateConversion enhancements
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             Reporter:               |                     Type:
  OpenSourceAnarchist                |  enhancement
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:  git-
                                     |  master
             Keywords:  qsv          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:
 In vf_vpp_qsv.c, there is support for mfxExtVPPFrameRateConversion.
 However, the only algorithm used is MFX_FRCALGM_DISTRIBUTED_TIMESTAMP. In
 Intel Media SDK, two other algorithms are supported:
 MFX_FRCALGM_PRESERVE_TIMESTAMP and MFX_FRCALGM_FRAME_INTERPOLATION.

 It would be useful to allow the user to select their preferred algorithm
 instead of only supporting MFX_FRCALGM_DISTRIBUTED_TIMESTAMP. Moreover,
 enabling support for MFX_FRCALGM_FRAME_INTERPOLATION would allow users to
 have another frame interpolation filter than minterpolate which could
 provide significant speed enhancements on supported hardware.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8603>
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