On Tue, Sep 5, 2023 at 11:36 AM Andrew Randrianasulu <[email protected]> wrote: > > On Tue, Sep 5, 2023 at 10:59 AM Andrea paz via Cin > <[email protected]> wrote: > > > > @Andrew > > Sorry to bother you again on a subject you have already tried to > > explain over and over again. > > > > Reading this page: > > https://trac.ffmpeg.org/wiki/HWAccelIntro > > it is my understanding that when decoding (note: from here on I am > > only referring to decoding/playback!) you can use the "-hwaccel" > > option without any other settings. > > As far as I understand those options parsed in ffmpeg command line > tool itself, so using library from c/c++ requires some similar manual > work .... > > > If the media file used supports > > hardware acceleration, then it will be used automatically without > > anything else to do. If it is not supported it will automatically > > switch to software decoding. There is no need to specify the device > > (because a device is automatically selected, even if it is not the > > preferred one), so it would be a generic feature that decides for > > itself when to run. > > Question, how can I impose "-hwaccel" when compiling CinGG? > > > > Another thing concerns decoding with Vulkan. Again, these are generic > > instructions and I would like to test it, however it requires device > > initialization, to be declared explicitly (although a generic term is > > fine: "vulkan=vk:0") and a few other options. See here: > > https://trac.ffmpeg.org/wiki/HWAccelIntro#Vulkan > > The question is always the same: How can I compile vulkan in CinGG to > > do some tests? > > There is possibility that current ffmpeg.git broken with latest > released vulkan headers, see ffpeg-user list.. > > In 5.1/6.0 you will get in best case just some filters, _may be_ amd > specific (and not open source?) encoder. > Vulkan work in future 6.1 aims just more unified (win/mac/lin may be > android) video interface ... instead of libva/ dxva11 / videotoolbox > on each platform, as far as I understand.
AMF stuff: https://github.com/GPUOpen-LibrariesAndSDKs/AMF/issues/348 > > https://github.com/mpv-player/mpv/issues/11739 > > http://ffmpeg.org/pipermail/ffmpeg-user/2023-September/056774.html > > May be there will be some benefits in driving hw blocks this way, > not sure (there was talk mesa's va encoder implementation not most > speedy one) > > But to your question just go to thirdparty/makefile and look for long > ffmpeg command line (without-ffplay etc), just remove --disable-vulkan > from there > . > > Or try to compile cingg without thirdparty ffmpeg. > > > > -- > > Cin mailing list > > [email protected] > > https://lists.cinelerra-gg.org/mailman/listinfo/cin -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
