[FFmpeg-trac] #8059(avfilter:new): pad filter with hw support

FFmpeg trac at avcodec.org
Sun Aug 4 12:05:52 EEST 2019

#8059: pad filter with hw support
             Reporter:  fortman      |                     Type:
                                     |  enhancement
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:  git-
             Keywords:  pad,         |  master
  scale_cuda, scale_qsv              |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug:

 The current implementation of the "pad" filter only supports a software
 context. And it can be very useful for windowing a scene, but then when
 using HW decoding and encoding it's required to hwdownload and hwupload to
 just "crop and pad" the frames.

 So, I suggest to implement one of these two alternatives:

 1. Or to add hw frames support to the "pad" plugin.
 2. Or adding pad options to filters like "scale_cuda" and "scale_qsv".

 I hope some developer wants to implement this.
 Thank you!

Ticket URL: <https://trac.ffmpeg.org/ticket/8059>
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