[FFmpeg-trac] #11618(ffmpeg:new): hwupload filter fails with "Cannot allocate memory" for VA-API on AMD RX 7900 XT (Navi 31) preventing H.264/HEVC hardware encoding initialization.

[FFmpeg]

#11618: hwupload filter fails with "Cannot allocate memory" for VA-API on AMD RX
7900 XT (Navi 31) preventing H.264/HEVC hardware encoding initialization.
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             Reporter:  CN        |                    Owner:  (none)
                 Type:  defect    |                   Status:  new
             Priority:  normal    |                Component:  ffmpeg
              Version:  7.1       |               Resolution:
             Keywords:  hwupload  |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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Comment (by nyanmisaka):

 The input of `hwdownload` must be hardware frames. However, testsrc always
 generates software frames, and hwaccel will not work here. Therefore,
 pipeline negotiation fails.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11618#comment:3>
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