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octave-forge video package


From: Christian Scholz
Subject: octave-forge video package
Date: Sat, 30 Mar 2013 15:23:36 +0100
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130307 Thunderbird/17.0.4

Hi everyone,

I had some problems building the video package on my system using the code provided on the website. After help from #octave I got it to work with the current svn and the following changes applied:

--- configure.ac        (revision 11765)
+++ configure.ac        (working copy)
@@ -22,7 +22,7 @@

 AC_CHECK_LIB([avformat], [av_write_frame], [],
[AC_MSG_ERROR([$PACKAGE_NAME requires libavformat from FFmpeg])])
-AC_CHECK_LIB([avcodec], [av_malloc], [],
+AC_CHECK_LIB([avutil], [av_malloc], [],
[AC_MSG_ERROR([$PACKAGE_NAME requires libavcodec from FFmpeg])])
 AC_CHECK_LIB([swscale], [sws_scale], [],
[AC_MSG_ERROR([$PACKAGE_NAME requires libswscale from FFmpeg])])


because av_malloc is part of lavutil on my system. Don't know if that counts as a bug, but I wanted to contribute that.

Also I'm really interessted in expanding the package, however I'm not familier with the octave source. What I'm trying to do is to expand the aviread function in order to read multiple frames at once (specified by an index vector, so that it works like its matlab counterpart).

Is there someone working on the package? Any hints on how to get familiar with the octave types and
classes, apart from reading through the whole source?

Best wishes,
Christian


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