Hello!
I've tried to install package "video" on my Octave 4.0/Win 7 and got this:
>> pkg install -forge video
Package libavformat was not found in the pkg-config search path.
Perhaps you should add the directory containing `libavformat.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libavformat' found
Package libavcodec was not found in the pkg-config search path.
Perhaps you should add the directory containing `libavcodec.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libavcodec' found
Package libavutil was not found in the pkg-config search path.
Perhaps you should add the directory containing `libavutil.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libavutil' found
Package libswscale was not found in the pkg-config search path.
Perhaps you should add the directory containing `libswscale.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libswscale' found
configure: error: need libavformat from FFMpeg
checking for gcc... gcc
checking for C compiler default output file name... a.exe
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... .exe
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for mkoctfile... C:/Octave/Octave-4.0.0/bin/mkoctfile-4.0.0.exe
retrieving compile and link flags from C:/Octave/Octave-4.0.0/bin/mkoctfile-4.0.0.exe
checking for F77_FUNC... yes
checking for SLList.h... no
checking for lo_ieee_nan_value... yes
checking for octave_idx_type... no
checking for quit.h... no
checking for octave... C:/Octave/Octave-4.0.0/bin/octave-4.0.0.exe
checking for OCTAVE_VERSION in Octave... 4.0.0
checking for octave_config_info('canonical_host_type') in Octave... i686-w64-mingw32
checking for octave_config_info('SHLEXT') in Octave... dll
checking whether ln -s works... no, using cp -p
checking for ranlib... ranlib
checking for strip... strip
checking for pkg-config... pkg-config
checking for av_write_frame in -lavformat... no
pkg: error running the configure script for video.
error: called from 'configure_make' in file C:\Octave\Octave-4.0.0\share\octave\4.0.0\m\pkg\priv
ate\configure_make.m near line 79, column 9
It seems to me that the package was not supposed to be installed on a Windows machine. Am I right?
I've also noticed that the package "video" has no maintainer. I have no idea how to make it work, but I would be grateful if you give me some kind of instruction how to install the package on Windows. Maybe I even could fix the package in order to make it Windows-compatible for all Octave users. Don't sure I can maintain the whole thing, but if I find out how to do this, I can make a try.
Best regards,
Renat Nasyrov.