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| tar xzf libav-11.4.tar.gz | | tar xzf libav-11.4.tar.gz |
| cd libav-11.4 | | cd libav-11.4 |
| ./configure | | ./configure --enable-pic |
| make -j 4 | | make -j 4 |
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| == On Windows == | | == On Windows == |
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| === 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. |
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| 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]] |
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| 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
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| * ffmpeg-20160105-git-68eb208-win32-shared.7z
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| * ffmpeg-20160105-git-68eb208-win32-dev.7z
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| Now
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| * Extract the bin/*.dll from ffmpeg-20160105-git-68eb208-win32-shared.7z to C:\Octave\Octave-4.0.0\bin
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| * 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)
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| * Extract lib/* from ffmpeg-20160105-git-68eb208-win32-dev.7z to C:\Octave\Octave-4.0.0\lib
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| Download a patched version (no pkg_config check for ffmpeg and PixelFormat -> AVPixelFormat) from [http://www.tech-chat.de/files/video-1.2.1_win_ffmpeg.tar.gz video-1.2.1_win_ffmpeg.tar.gz (sha1sum 3ef5b0dca471175daf769bd813b6de7fa85759df)]
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| or grab the source and apply [http://www.tech-chat.de/files/video-1.2.1_win_ffmpeg.patch this patch]
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| Compile and install from Octave with
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| <code>
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| pkg -verbose install video-1.2.1_win_ffmpeg.tar.gz
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| </code>
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| Load it before any usage:
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| <code>
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| pkg load video
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| </code>
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| === mxe-octave ===
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| You can also use mxe-octave to include ffmpeg, there is already a target for it.
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| = Known bugs =
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| * On MXE-Octave with ffmpeg crosscompiled "clear all" after using "addframe" causes a segmentation fault
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| <code>
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| Program received signal SIGSEGV, Segmentation fault.
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| [Switching to Thread 1956.0xdd4]
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| 0x77d6e3c6 in ntdll!RtlInitUnicodeString () from C:\Windows\SysWOW64\ntdll.dll
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| (gdb) bt
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| #0 0x77d6e3c6 in ntdll!RtlInitUnicodeString ()
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| from C:\Windows\SysWOW64\ntdll.dll
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| #1 0x19380000 in ?? ()
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| #2 0x77d6e013 in ntdll!RtlFreeHeap () from C:\Windows\SysWOW64\ntdll.dll
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| #3 0x778698cd in msvcrt!free () from C:\Windows\syswow64\msvcrt.dll
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| #4 0x19380000 in ?? ()
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| #5 0x1dc016c6 in AVHandler::~AVHandler (this=0x1da579a8,
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| __in_chrg=<optimized out>) at AVHandler.cc:99
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| #6 0x1dc0384a in Avifile::~Avifile (this=0x1dac8570,
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| __in_chrg=<optimized out>) at oct-avifile.cc:149
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| </code>
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| [[Category:Octave-Forge]] | |