ср, 17 июл. 2024 г., 10:12 Igor BEGHETTO via Cin <cin@lists.cinelerra-gg.org>:

Il 16/07/2024 09:57, Andrew Randrianasulu ha scritto:
вт, 16 июл. 2024 г., 10:42 Igor BEGHETTO via Cin <cin@lists.cinelerra-gg.org>:
I am making a Cin_20240630 build by myself for the OS UbuntuStudio_16.04_LTS_64bit.
I read in the MailingLists thanks to Phyllis and Andrew_R, I need to use specific instruction.

From What I understand, with Cin_20240630 the steps are:
1) cd to "cinelerra-5.1" directory
2) make clean
3) export FFMPEG_EXTRA_CFG="--disable-decoder=vvc"
     ( before running autogen.sh / configure / make )
4) patch -p1 < alt_shortcuts.patch
     ( to use standard shortcuts )
5) ./autogen.sh
6) ./configure --with-single-user --without-shuttle-usb \
               --without-vaapi --without-vdpau \
               --disable-dav1d \
               --enable-libaom=no
     ( "--enable-libaom=no" added, without double quote )
7) make 2>&1 | tee log
8) grep "\*\*\*.*error" -ai log
   ( Check for obvious build errors )
9) make install

I think --disable-libaom should work, too?

I will try this week end. Thanks!


I am ignorant in Linux, so I would like to understand if the instruction
  export FFMPEG_EXTRA_CFG="--disable-decoder=vvc"
write something in somewhere or not.

it passed to internal ffmpeg's configure script, so you can look into thirdparty/ffmpeg-7.0/ffbuild (if I remember correctly) and read big log there, after build process come to it.
Thank you, Andrea_R! I found it where you indicated.
But I don't understand, how export instruction knows where to go,... how does it know the path where to write that parameter?
Sorry, It is a stupid question, here, but I would like to understand.

I think make directly look up this variable as instructed by thirdparty/Makefile

you can open this file and scroll down to very long ffmpeg configure line.

I do not understand makefiles fully, just enough to try few things and see if they work ...



Because my Operating System is UbuntuStudio_16.04, is there a way to build Cinelerra-GG using an old FFMPEG and/or libaom?

how old, exactly? Right now it should be buildable with ffmpeg6.x/7.0 (tested), I also removed buildability with ffmpeg-4.4 because I had some crashes during ff_* filter tests on my 32bit Slackware. ffmpeg 5.x not tested ...

I am thinking to FFMPEG-4.3 and libaom-v3.4.0. But, maybe it doesn't make sense.

Ah, sorry. in this case dynamic linking to this will not work.

Good luck and let us know how build attempt worked on your machine!