Difference between revisions of "Video package"

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== On Windows ==
 
== On Windows ==
  
You can use mxe-octave to include ffmpeg, there is already a target for it.
+
=== using official mxe-build and ffmpeg binaries ===
 +
 
 +
This is at the moment the preferred way for windows users and 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 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
 +
 
 +
Download a patched version (no pkg_config check for ffmpeg and PixelFormat -> AVPixelFormat) from [[Media:video-1.2.1_win_ffmpeg.tar.gz]]
 +
 
 +
Compile and install from Octave with
 +
<code>
 +
pkg -verbose install video-1.2.1_win_ffmpeg.tar.gz
 +
</code>
 +
 
 +
=== mxe-octave ===
 +
You can also use mxe-octave to include ffmpeg, there is already a target for it.
  
 
= Known bugs =
 
= Known bugs =
* On MXE-Octave with ffmpeg "clear all" after using "addframe" causes a segmentation fault
+
* On MXE-Octave with ffmpeg crosscompiled "clear all" after using "addframe" causes a segmentation fault
  
 
<code>
 
<code>

Revision as of 01:01, 5 January 2016

The 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 Windows

using official mxe-build and ffmpeg binaries

This is at the moment the preferred way for windows users and 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 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

Download a patched version (no pkg_config check for ffmpeg and PixelFormat -> AVPixelFormat) from Media:video-1.2.1_win_ffmpeg.tar.gz

Compile and install from Octave with

pkg -verbose install video-1.2.1_win_ffmpeg.tar.gz

mxe-octave

You can also use mxe-octave to include ffmpeg, there is already a target for it.

Known bugs

  • On MXE-Octave with ffmpeg crosscompiled "clear all" after using "addframe" causes a segmentation fault

Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 1956.0xdd4] 0x77d6e3c6 in ntdll!RtlInitUnicodeString () from C:\Windows\SysWOW64\ntdll.dll (gdb) bt

  1. 0 0x77d6e3c6 in ntdll!RtlInitUnicodeString ()
  from C:\Windows\SysWOW64\ntdll.dll
  1. 1 0x19380000 in ?? ()
  2. 2 0x77d6e013 in ntdll!RtlFreeHeap () from C:\Windows\SysWOW64\ntdll.dll
  3. 3 0x778698cd in msvcrt!free () from C:\Windows\syswow64\msvcrt.dll
  4. 4 0x19380000 in ?? ()
  5. 5 0x1dc016c6 in AVHandler::~AVHandler (this=0x1da579a8,
   __in_chrg=<optimized out>) at AVHandler.cc:99
  1. 6 0x1dc0384a in Avifile::~Avifile (this=0x1dac8570,
   __in_chrg=<optimized out>) at oct-avifile.cc:149