On 15/05/2025 18.48, Ferdi Scholten wrote:
пт, 16 мая 2025 г., 00:12 Mark Filipak<markfilipak.i...@gmail.com>:
On 15/05/2025 16.44, Carl Zwanzig wrote:
On 5/15/2025 1:33 PM, Mark Filipak wrote:
What if I don't have a GPU?
Then you have a 25+ year old video card?
Laptop
AFAIK all video chips for the last few decades have had
some form of GPU, although it may not be that useful or not accessible
for offload processing.
FFmpeg says, "using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX"
I guess "AVX" is a GPU? I have no idea.
no, just another cpu SIMD extension ....
but llvmpipe/lavapipe (software Vulkan rasterizer) probably can use it.
A better question might be "What if I don't have a supported GPU?"
It's not a _better_ question, Carl, it's the _next_ question.
Does anyone ever care to read documentation?
Sure. Here: https://ffmpeg.org/ffmpeg-filters.html#libplacebo
libplacebo currently supports Vulkan (including MoltenVK), OpenGL, and Direct3D 11. It currently has
the following minimum hardware requirements:
* *Vulkan*: Core version 1.2
* *OpenGL*: GLSL version >= 130 (GL >= 3.0, GL ES >= 3.0)
* *Direct3D*: Feature level >= 9_1
Where did you find that text? Should I be looking somewhere else for
documentation?
Otherwise, if you have a laptop that was produced after 2010 its hardware almost certainly supports
libplacebo in some way as the oldest of the hardware requirements being OpenGL 3.0 was supported by
almost all video devices (either dedicated or built in the processor) of the time. OpenGL 3.0 was
released in 2008.
I run FFmpeg in Windows.
The same if you are on Windows, Direct3D Feature level 9_1 was released in 2008
Intel Graphic and Media Control Panel makes no mention of Direct3D. I believe that Direct3D is from
Microsoft.
Vulkan is much more recent, version 1.2 is from 2020
In other words for Intel based laptops, everything going back to Sandy Bridge has hardware support
for libplacebo and for AMD based this goes back to the K10 series processors.
From the documentation:
"
In principle, libplacebo has no mandatory dependencies - only optional ones. However, to get a
useful version of libplacebo. you most likely want to build with ...
Build? Come down to Earth, friend. And again, where are you finding your
documentation?
For sure, running FFmpeg with libplacebo on Sandy Bridge hardware won't be fast at all. But it will
make use of hardware acceleration via OpenGL ( or DirectX if you use Windows < 10 )
Windows 7x64 SP1. Yeah, I know... but my Acer gaming laptop with NVIDIA died.
Thank you. Then I'll put some time into using libplacebo's 'tonemapping'
(https://ffmpeg.org/ffmpeg-filters.html#Tone-mapping) in addition to 'tonemap'
(https://ffmpeg.org/ffmpeg-filters.html#tonemap-1). I've been at this for two days.
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