ffmpeg-windows-build-helpers
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rdp
Vulkan and OpenCL
Would you mind adding support for Vulkan and OpenCL decoders?
Cuda decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
bench: utime=3.781s stime=2.547s rtime=24.493s
bench: maxrss=139480kB
OpenCL decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
bench: utime=27.750s stime=1.438s rtime=6.049s
bench: maxrss=128976kB
Vulkan decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
bench: utime=26.078s stime=1.672s rtime=6.418s
bench: maxrss=208604kB
They are roughly 4x faster than hardware decoders (by using the videocard 3D chip) and they have a fallback in case there is no hardware decoder making them a really good addition as you don't have to check anything. Just -hwaccel opencl and it will figure it out.
I may be able to look at it...
On Fri, Sep 30, 2022 at 7:34 PM darkjacky @.***> wrote:
Would you mind adding support for Vulkan and OpenCL decoders?
Cuda decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=3.781s stime=2.547s rtime=24.493s bench: maxrss=139480kB
OpenCL decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=27.750s stime=1.438s rtime=6.049s bench: maxrss=128976kB
Vulkan decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=26.078s stime=1.672s rtime=6.418s bench: maxrss=208604kB
They are roughly 4x faster than hardware decoders (by using the videocard 3D chip) and they have a fallback in case there is no hardware decoder making them a really good addition as you don't have to check anything. Just -hwaccel opencl and it will figure it out.
— Reply to this email directly, view it on GitHub https://github.com/rdp/ffmpeg-windows-build-helpers/issues/653, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAADBUGMEEF5IQ7OAYRY5Y3WA6IJFANCNFSM6AAAAAAQ2HJOSY . You are receiving this because you are subscribed to this thread.Message ID: @.***>
But I'm not super familiar with the options or libraries required?
On Fri, Sep 30, 2022 at 9:27 PM Roger Pack @.***> wrote:
I may be able to look at it...
On Fri, Sep 30, 2022 at 7:34 PM darkjacky @.***> wrote:
Would you mind adding support for Vulkan and OpenCL decoders?
Cuda decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=3.781s stime=2.547s rtime=24.493s bench: maxrss=139480kB
OpenCL decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=27.750s stime=1.438s rtime=6.049s bench: maxrss=128976kB
Vulkan decode benchmark:
video:12265kB audio:199549kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown bench: utime=26.078s stime=1.672s rtime=6.418s bench: maxrss=208604kB
They are roughly 4x faster than hardware decoders (by using the videocard 3D chip) and they have a fallback in case there is no hardware decoder making them a really good addition as you don't have to check anything. Just -hwaccel opencl and it will figure it out.
— Reply to this email directly, view it on GitHub https://github.com/rdp/ffmpeg-windows-build-helpers/issues/653, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAADBUGMEEF5IQ7OAYRY5Y3WA6IJFANCNFSM6AAAAAAQ2HJOSY . You are receiving this because you are subscribed to this thread.Message ID: @.***>
Maybe like this? https://github.com/BtbN/FFmpeg-Builds/blob/0c02e8fe66d8def2ff34de52f244789609f78d9a/scripts.d/50-vulkan/45-vulkan.sh https://github.com/BtbN/FFmpeg-Builds/blob/0c02e8fe66d8def2ff34de52f244789609f78d9a/scripts.d/45-opencl.sh