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

FFmpeg trac at avcodec.org
Mon Oct 22 15:56:21 EEST 2018

#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 msiders):

 Hi oromit,

 Thank you for pointing to the initialization code of the ffmpeg.c
 Now I see that only one "ist->hwaccel_id" is used.

 I feel this could be changed to some list of "active" hardware
 accelerators (like the list of available hw accels). Then multiple
 hw_device_ctx can be active in one execution of the FFmpeg.

 I hope someone would like to implement this. The rewrite of the ffmpeg.c
 doesn't need to be "massive" as for each filter just only one
 "hw_device_ctx" can be used. So the change only implies to the
 initialization section and to pass the correct context to each filter.

 You agree?

Ticket URL: <https://trac.ffmpeg.org/ticket/7507#comment:2>
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