[FFmpeg-user] Compiling FFmpeg with Nvidia GPU acceleration

[madderek at ntlworld.com]

-----Original Message-----
From: ffmpeg-user <ffmpeg-user-bounces at ffmpeg.org> On Behalf Of Carl Zwanzig
Sent: 15 January 2021 21:13
To: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] Compiling FFmpeg with Nvidia GPU acceleration

 

Thanks very much for taking the trouble to reply.

 

I'm following the instructions here, Windows section:

https://docs.nvidia.com/video-technologies/video-codec-sdk/ffmpeg-with-nvidia-gpu/

 

What I'm trying to achieve is joining many images together which have been produced by a video enhancing program.  The command line is:

ffmpeg -framerate 59.94  -start_number 160004 -i P:\xmas5\%06d.png -c:v libx264 -preset veryslow -tune film -profile:v high -pix_fmt yuv420p -level 4.1 -crf 17 -r 59.94 -threads 2 P:\xmaspng_80002-99932_Dione-DVx4_png.mkv

 

Some times it's TIFFs not PNGs.

 

I am hoping that the Nvidia GPU acceleration will speed up what is a very slow process.  That's all I want it for, and I'm trying to achieve this on a clean install of Windows 10 on a spare disc.  Nvidia RTX 2080Ti.

I've managed to install make (I'm not an expert on any of this!) but now the make command produces:

 

C:\Windows\System32\nv-codec-headers>make install PREFIX=/usr

make: *** No rule to make target `install'.  Stop.

 

The makefile in that directory contains:

 

PREFIX = /usr/local

LIBDIR = lib

INSTALL = install

SED = sed

 

all:

ifeq ($(OS),Windows_NT)

              $(SED) 's#@@PREFIX@@#$(shell cygpath -m ${PREFIX})#' ffnvcodec.pc.in > ffnvcodec.pc

else

              $(SED) 's#@@PREFIX@@#$(PREFIX)#' ffnvcodec.pc.in > ffnvcodec.pc

endif

 

install: all

              $(INSTALL) -m 0755 -d '$(DESTDIR)$(PREFIX)/include/ffnvcodec'

              $(INSTALL) -m 0644 include/ffnvcodec/*.h '$(DESTDIR)$(PREFIX)/include/ffnvcodec'

              $(INSTALL) -m 0755 -d '$(DESTDIR)$(PREFIX)/$(LIBDIR)/pkgconfig'

              $(INSTALL) -m 0644 ffnvcodec.pc '$(DESTDIR)$(PREFIX)/$(LIBDIR)/pkgconfig'

 

uninstall:

              rm -rf '$(DESTDIR)$(PREFIX)/include/ffnvcodec' '$(DESTDIR)$(PREFIX)/$(LIBDIR)/pkgconfig/ffnvcodec.pc'

 

.PHONY: all install uninstall

 

The following command from the documentation also fails:

 

C:\FFmpeg>./configure --enable-nonfree -disable-shared --enable-cuda-sdk --enable-libnpp --toolchain=msvc --extra-cflags=-I../nv_sdk --extra-ldflags=-libpath:../nv_sdk

'.' is not recognized as an internal or external command,

operable program or batch file.

 

But I'm not sure whether this is due to the previous failure.

 

If I'm on the completely wrong track I'm prepared to format the disc and start again!  (What a pity there's not an image of Windows all prepared with this and ready to go!)

 

Thanks again for taking an interest in my problem - I am a beginner here!

 

Derek

 

 

 

 

 

 

 

On 1/15/2021 10:49 AM, madderek--- via ffmpeg-user wrote:

 

> I cannot get the 'make' command to work - I get  'make' is not 

> recognized as an internal or external command,

> 

> operable program or batch file.

 

Well.... install make (nvidia's instructions include that).

 

What's your intended build environment? VisualStudio of msys2/mingw? If mingw, did you install the 'c' compiler?

 

The nvidia instructions don't cover installing a heap of things, like the compiler and a lot of packages. (They also say "–-toolchain=msvc" even as they're giving instructions for mingw, which is suspect (I haven't looked at the code yet to see if it matters.)

 

So first, make sure you have a working build environment, that's out the scope of this list. Then look at the instructions for building ffmpeg-

 

I use "Option 2: MSYS2" of

 <https://trac.ffmpeg.org/wiki/CompilationGuide/MinGW> https://trac.ffmpeg.org/wiki/CompilationGuide/MinGW

 

If you're using visual studio, see

 <https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC> https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC

 

You'll have to manually install any needed packages, usually ./configure will tell you when something's missing.

 

Once you can build ffmpeg without cuda, then try building with cuda. And you may want to follow up with nvidia if you're using their instructions.

 

Later,

 

z!

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