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Video package (edit)

Revision as of 11:42, 10 June 2019

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== On Windows ==
== On Windows ==


=== using official mxe-build and ffmpeg binaries ===
The MXE builds >= 4.0.1-rc3 already includes the ffmpeg libs so video should run out of the box.


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.
[[Category:Octave Forge]]
 
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
 
Compile and install from Octave with
<code>
pkg -verbose -forge install video
</code>
 
Load it before any usage:
<code>
pkg load video
</code>
 
=== mxe-octave ===
You can also use mxe-octave to include ffmpeg, there is already a target for it. Future versions of MXE-Octave builds will already have video included.
 
= Known bugs =
* On MXE-Octave with ffmpeg crosscompiled "clear all" after using "addframe" causes a segmentation fault
 
<code>
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1956.0xdd4]
0x77d6e3c6 in ntdll!RtlInitUnicodeString () from C:\Windows\SysWOW64\ntdll.dll
(gdb) bt
#0  0x77d6e3c6 in ntdll!RtlInitUnicodeString ()
  from C:\Windows\SysWOW64\ntdll.dll
#1  0x19380000 in ?? ()
#2  0x77d6e013 in ntdll!RtlFreeHeap () from C:\Windows\SysWOW64\ntdll.dll
#3  0x778698cd in msvcrt!free () from C:\Windows\syswow64\msvcrt.dll
#4  0x19380000 in ?? ()
#5  0x1dc016c6 in AVHandler::~AVHandler (this=0x1da579a8,
    __in_chrg=<optimized out>) at AVHandler.cc:99
#6  0x1dc0384a in Avifile::~Avifile (this=0x1dac8570,
    __in_chrg=<optimized out>) at oct-avifile.cc:149
</code>
 
[[Category:Octave-Forge]]
Retrieved from "https://wiki.octave.org/Special:MobileDiff/7162...11985"

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