[Slackbuilds-users] ffmpeg4 not building

[Jheengut Pritvi]

Hi,
I have not tried the latest version but can you confirm if the legacy
opencv is needed instead.


On Sun, 19 Apr 2020 at 20:15, Luveh Keraph <1.41421 at gmail.com> wrote:

> I am using the following ffmpeg4.sqf file in a freshly installed (and
> up-to-date) 14.2 system:
>
> libass
> chromaprint
> frei0r
> ladspa_sdk
> libaom
> libbluray
> libbs2b
> celt
> libdc1394
> libfdk-aac
> flite
> libgme
> gsm
> libiec61883
> libavc1394
> libilbc
> libmodplug
> lame
> opencore-amr
> opencv
> opus
> rtmpdump
> rubberband
> snappy
> speex
> tesseract
> twolame
> vid.stab
> libwebp
> x264
> x265
> xvidcore
> zeromq
> zvbi
> ffmpeg4 | BINS=yes CHROMAPRINT=yes FREI0R=yes LADSPA=yes LIBAOM=yes
> LIBBLURAY=yes LIBBS2B=yes LIBCELT=yes LIBDC1394=yes LIBFDK_AAC=yes
> LIBFLITE=yes LIBGME=yes LIBGSM=yes LIBIEC61883=yes LIBILBC=yes
> LIBMODPLUG=yes LIBMP3LAME=yes LIBOPENCORE=yes LIBOPENCV=yes LIBOPUS=yes
> LIBRTMP=yes LIBRUBBERBAND=yes LIBSNAPPY=yes LIBSPEEX=yes LIBTESSERACT=yes
> LIBTWOLAME=yes LIBVIDSTAB=yes LIBWEBP=yes LIBX264=yes LIBX265=yes
> LIBXVID=yes LIBZMQ=yes LIBZVBI=yes
>
> I encountered the following issues:
>
> 1. var-plugin-sdk is required for rubberband.
> 2. leptonica is required for tesseract (I think).
> 3. ffmpeg4 seems to be looking for opencv, while the script above installs
> opencv4:
>
> ffmpeg-4.1/tests/checkasm/jpeg2000dsp.c
> ffmpeg-4.1/tests/checkasm/synth_filter.c
> ffmpeg-4.1/tests/checkasm/vf_nlmeans.c
> ffmpeg-4.1/tests/tiny_psnr.c
> ffmpeg-4.1/COPYING.LGPLv2.1
> ffmpeg-4.1/README.md
> ffmpeg-4.1/CONTRIBUTING.md
> ERROR: opencv not found using pkg-config
>
> # pkg-config --list-all|grep opencv
> opencv4                             OpenCV - Open Source Computer Vision
> Library
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