[FFmpeg-trac] #7507(avfilter:new): hwupload: missing device platform

[FFmpeg]

#7507: hwupload: missing device platform
-------------------------------------+-------------------------------------
             Reporter:  msiders      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  hwupload,    |               Blocked By:
  hwaccel                            |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by jkqxz):

 It sounds like you want to look at the options `-init_hw_device`,
 `-hwaccel_device` and `-filter_hw_device`.

 Replying to [comment:4 msiders]:
 >   INPUT --> DECODER A --> FILTER B --> HWDOWNLOAD --> FILTER C -->
 HWUPLOAD --> ENCODER D --> OUTPUT
 >
 > As you can note:
 >
 > - GPU platform X: applies to A,B & hwdownload.
 > - System memory: C only .
 > - GPU platform Y: hwupload & D.

 Something like:

 `ffmpeg -init_hw_device x_dev:x_args -init_hw_device y_dev:y_args -hwaccel
 x -hwaccel_device x_dev ... -i ... -filter_hw_device y_dev -vf
 b,hwdownload,c,hwupload -c:v d ...`

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7507#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker