Editing Video package

The {{Forge|video}} package is part of the [[Octave Forge]] project and tries to implement the video functions from matlab. It should compile with ffmpeg and libav.

= Installation =

== on Debian Jessie using "pkg -forge" ==

 sudo apt-get install libavutil-dev libavformat-dev libswscale-dev libavcodec-dev

On the Octave prompt:

 >> pkg install -forge video

== on CentOS Linux release 7.2.1511 (Core) with GNU Octave Version 3.8.2 ==

 yum install octave-devel
 yum install libvorbis  yasm freetype zlib bzip2 faac lame speex libvpx libogg  libtheora  x264 XviD openjpeg15 opencore-amr
 wget https://libav.org/releases/libav-11.4.tar.gz
 tar xzf libav-11.4.tar.gz
 cd libav-11.4
 ./configure --enable-pic
 make -j 4

as root:

 make install

On the Octave prompt:

 >> pkg install -forge video

== On Windows ==

=== mxe-octave 4.0.1-rc3 ===
You could try octave 4.0.1-rc3 from http://alpha.gnu.org/gnu/octave/ which is in testing - it has the ffmpeg libraries already in it, with the previous
version of video package, which could be updated with

 pkg -verbose -forge install video

=== using official mxe-build and ffmpeg binaries ===

This assumes that you've installed Octave from the official MXE build from https://ftp.gnu.org/gnu/octave/windows/ to the default path.

Download the ffmpeg binaries for windows from https://ffmpeg.zeranoe.com/builds/. You need the "32-bit Dev" and "32-bit Shared" archive. These instructions were tested with

* ffmpeg-20160105-git-68eb208-win32-shared.7z
* ffmpeg-20160105-git-68eb208-win32-dev.7z

Now

* Extract the bin/*.dll from ffmpeg-20160105-git-68eb208-win32-shared.7z to C:\Octave\Octave-4.0.0\bin
* Extract include/* from ffmpeg-20160105-git-68eb208-win32-dev.7z to C:\Octave\Octave-4.0.0\include (You should now, for example, see C:\Octave\Octave-4.0.0\include\libavutil\version.h)
* Extract lib/* from ffmpeg-20160105-git-68eb208-win32-dev.7z to C:\Octave\Octave-4.0.0\lib

octave-video 1.2.2 tries to find avresample which isn't included in the builds. Either patch configure.ac (remove the AC_CHECK_LIB avresample), rerun ./bootstrap and repack or download this [http://www.tech-chat.de/files/video-1.2.2.tar.gz patched version] and install with

 pkg -verbose install video-1.2.2.tar.gz

Load it before any usage:

 pkg load video


[[Category:Octave Forge]]