hi

mplayer has redundant ways to play some video formats; for example,
(most of) MPEG can be played both by FFMpeg and by libmpeg ;
by using the -vc or -ao switch, you can force it to use exactly one
of those

Here is a practical example

$ mplayer -vc mpeg12 Einparken.mpg
uses
==========================================================================
Forced video codec: mpeg12
Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================

while
$ mplayer -vc ffmpeg1 Einparken.mpg
==========================================================================
Forced video codec: ffmpeg1
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmpeg1] vfm: ffmpeg (FFmpeg MPEG-1)
==========================================================================

So, you (or, me, or anybody willing) may use the fuzzer to test
specifically for crashes in each subsystem.
(E.g. you may be particularly interested in seeing which crashes
affect ffmpeg and which dont)

a.

-- 
Andrea Mennucc

"The EULA sounds like it was written by a team of lawyers who want to tell 
me what I can't do, and the GPL sounds like it was written by a human 
being who wants me to know what I can do."
Anonymous,    http://www.securityfocus.com/columnists/420


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