ports/115090: multimedia/ffmpeg incompatible with vlc

[Jacob Atzen]

>Number:         115090
>Category:       ports
>Synopsis:       multimedia/ffmpeg incompatible with vlc
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 31 16:30:01 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Jacob Atzen
>Release:        6.2
>Organization:
>Environment:
>Description:
There is a problem where vlc will refuse to play certain kinds of video if ffmpeg is compiled with software scaler enabled. The exact issue can be noticed by running: 

vlc -vvv --color --list | grep mpeg

Which when the software scaler is enabled will show something like:

main private warning: cannot load module `/usr/local/lib/vlc/codec/libffmpeg_plugin.so' (/usr/local/lib/vlc/codec/libffmpeg_plugin.so: Undefined symbol "img_resample_init")

The issue use of the software scaler was introduced 2 months ago in revision 1.60 of the ffmpeg Makefile.
>How-To-Repeat:

>Fix:
The resolution is to remove the "--enable-swscaler" from the CONFIGURE_ARGS of the multimedia/ffmpeg Makefile. There's a mail detailing the issue here:

http://lists.pld-linux.org/mailman/pipermail/pld-bugs/2007-April/008059.html

I don't know what the proper way to resolve this issue is. For now I have made a local modification to my own Makefile.

>Release-Note:
>Audit-Trail:
>Unformatted: