[FFmpeg-devel] [PATCH] probetest.c

[Michael Niedermayer]

On Mon, Sep 14, 2009 at 05:19:03PM +0200, Michael Niedermayer wrote:
> Some simple probe testing code should be attached
> 
> its output, aka formats that detect random data with a score >25 are:
> Failure of h261 probing code with score=50 type=0 p=B53 size=2
> Failure of vc1test probing code with score=50 type=0 p=40E size=4
> Failure of h263 probing code with score=50 type=0 p=C1E size=4
> Failure of idcin probing code with score=50 type=0 p=E93 size=8
> Failure of mm probing code with score=50 type=0 p=FC0 size=128
> Failure of dv probing code with score=75 type=1 p=E85 size=256
> Failure of vmd probing code with score=50 type=0 p=AF4 size=512
> Failure of mpeg probing code with score=52 type=0 p=D9C size=4096
> Failure of dts probing code with score=51 type=1 p=B8F size=8192
> 
> maintainers of the listed formats should look into fixing their probe
> code!
> ill try to look at h26*/mpeg if i find the time, that said if someone
> else is faster thats welcome of course ...

and as everyone celebrates victory, probetest returns from the depths of
hell stronger and more evil to devour more demuxers
heres the output up to 32k
testing size=1
testing size=2
Failure of vmd probing code with score=50 type=1 p=DF2 size=2
testing size=4
Failure of mm probing code with score=50 type=1 p=F93 size=4
Failure of MTV probing code with score=100 type=3 p=12A size=4
Failure of swf probing code with score=100 type=3 p=162 size=4
testing size=8
Failure of vqf probing code with score=50 type=3 p=C2A size=8
Failure of mov,mp4,m4a,3gp,3g2,mj2 probing code with score=50 type=3 p=FD1 size=8
Failure of mov,mp4,m4a,3gp,3g2,mj2 probing code with score=100 type=3 p=75 size=8
testing size=16
Failure of ea probing code with score=100 type=3 p=2BE size=16
Failure of nsv probing code with score=80 type=3 p=3C3 size=16
Failure of vc1test probing code with score=50 type=1 p=EBD size=16
testing size=32
Failure of idcin probing code with score=50 type=0 p=F7D size=32
Failure of film_cpk probing code with score=100 type=3 p=792 size=32
testing size=64
Failure of mpc8 probing code with score=100 type=3 p=85A size=64
Failure of dxa probing code with score=100 type=3 p=7FE size=64
testing size=128
Failure of siff probing code with score=100 type=3 p=94A size=128
testing size=256
testing size=512
Failure of mp3 probing code with score=51 type=1 p=1C5 size=512
testing size=1024
Failure of mpeg probing code with score=52 type=2 p=B17 size=1024
testing size=2048
testing size=4096
testing size=8192
testing size=16384
testing size=32768
[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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