[FFmpeg-trac] #7006(undetermined:new): Intel QSV: "QSV requires a fixed frame pool size" message is given

[FFmpeg]

#7006: Intel QSV: "QSV requires a fixed frame pool size" message is given
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             Reporter:  JasonZhang   |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  qsv          |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by Brainiarc7):

 Here's the workaround:

 Add this filter argument to hwupload:

 hwupload=extra_hw_frames=1234 (replace with suitable value, probably
 something like 10 works for you here).

 '''Rationale:'''

 The filter option extra_hw_frames passed to the hwupload video filter is
 used to set an initial pool size.

 For the settings, if it's feeding into a scaler, then probably 2 or 3
 frames are sufficient, but if it's feeding into an encoder with look-ahead
 enabled, then you might need over 100. As such, it's currently under user
 control.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7006#comment:2>
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