Re: Octave Video Package

[PhilipNienhuis]

PrasannaKumar Muralidharan wrote
> Hi Renat,
> 
>> 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
> 
> The libraries libavcodec, libavformat, libavutil and libswscale are
> part of FFMpeg / libav. Video package uses them for decoding/encoding
> video data. The installation has failed as those libraries were not
> found in your system.
> 
>> It seems to me that the package was not supposed to be installed on a
>> Windows machine. Am I right?

In a way, yes.  Read on...


> FFMpeg works in windows (example VLC player uses libavcodec) so the
> video package should work too.

.... be it that ffmpeg isn't included with the current Octave for Windows
installer.

Moreover, the video package has been unmaintained for several years now. 
So unless someone jumps up to bring it up-to-date, there's little hope that
the video package will work anytime soon.
I think that once it works on Linux, it'll probably work in Windows as well
if ffmpeg is included in the installer.

Philip




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