Implementing SVT-VP9/AV1 in Voukoder

I'm currently testing the SVT-VP9/AV1 codec which are performance optimized and faster than standard VP9 and AV1. The codecs can be build in ffmpeg so I think Voukoder can use it easily. Here are some benchmarks. What do you think Vouk ?

If you think it could fit in Voukoder, maybe I can implement it.

SVT-VP9 uses 100% of my CPU power for one encoding (AMD TR1950X). With standard VP9 I only get around 5% CPU usage. Thats pretty nice. But it needs a lot of RAM ^^.

Here is the license information.

Yes, the codec can be build in ffmpeg with a patch which is descriped on the github page.

Wow, even AV1 is pretty fast and usable I would say. RAM usage is also higher (about 13GB) ^^. With my TR1950X I get around 10 fps encoding speed with a 1080p video (enc-mode =5). Important is when compiling with visual studio that 'Release' mode is used. When compiling in Debug mode the encoding speed is MUCH slower. On a high core count intel processor with AVX-512 support it should be even faster

Zitat von Vouk

Did you build ffmpeg with it compiled in already?

I'm currently working on it.

uff, I finally got it after hours of problems

I could compile ffmpeg static libraries with svt-av1. So svt-vp9 and svt-hevc should also be possible.

My compiled libraries also work in voukoder

Do you mean ffmpeg 4.1? I used 4.2

But i got another problem now.

Zitat von Vouk

You need to add the new lib to lavf.h.

Thanks, that worked

Zitat von Vouk

Unfortunately Premiere seems to hang when opening media export in release mode. Can you reproduce that?

Yes i have that issue in release mode too. I can't test it in debug mode because I could't build some libs with debug mode (there was a g++ error that -MDd was unknown, I'm trying to fix that to test in debug mode).

When building libmfx in debug mode, I got this error: "checking whether the c++ compiler works...no"

The config.log file says this:

gcc version 9.1.0 (Rev3, Built by MSYS2 project) 
configure:3804: $? = 0
configure:3793: g++ -V >&5
g++.exe: error: unrecognized command line option '-V'
g++.exe: fatal error: no input files
compilation terminated.
configure:3804: $? = 1
configure:3793: g++ -qversion >&5
g++.exe: error: unrecognized command line option '-qversion'; did you mean '--version'?
g++.exe: fatal error: no input files
compilation terminated.
configure:3804: $? = 1
configure:3824: checking whether the C++ compiler works
configure:3846: g++ -MDd -D_FORTIFY_SOURCE=2 -D__USE_MINGW_ANSI_STDIO=1 -pipe -static-libgcc -static-libstdc++ conftest.cpp  >&5
g++.exe: error: unrecognized command line option '-MDd'; did you mean '-MD'?
configure:3850: $? = 1
configure:3888: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "libmfx"
| #define PACKAGE_TARNAME "libmfx"
| #define PACKAGE_VERSION "1.27"
| #define PACKAGE_STRING "libmfx 1.27"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define PACKAGE "libmfx"
| #define VERSION "1.27"
| #define MFX_HAVE_WINDOWS 1
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:3893: error: in `/trunk/msys64/home/crott/voukoder/src/libmfx':
configure:3895: error: C++ compiler cannot create executables
See `config.log' for more details

Building in release mode works fine. I don't now what I am doing wrong when building in debug mode.

I installed gcc some time ago... Uninstalled it and the Microsoft compiler is used now and works