Re: [dvd::rip] Preview frames not working

On Mon, 2005-06-27 at 14:47 +0200, Jörn Reder wrote:
> As always ;) : execute the command line above on a console and check 
> transcode's output.

Indeed.

$ transcode  -H 10 -o snapshot -y ppm,null -x vob,null
transcode v1.0.0beta3 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
[transcode] (probe) suggested AV correction -D 0 (0 ms) | AV 0 ms | 0 ms
[transcode] auto-probing source (null) (ok)
[transcode] V: import format    | unknown  (V=vob|A=null)
[transcode] V: import frame     | disabled
[transcode] V: bits/pixel       | 0.000 (unknown)
[transcode] V: decoding fps,frc | 25.000,0
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x2000  AC3          [   0,16,0]
[transcode] A: export           | disabled
[transcode] V: encoding fps,frc | 25.000,3
[transcode] A: bytes per frame  | 0 (0.000000)
[transcode] A: adjustment       | 0@1000
[transcode] V: IA32/AMD64 accel | sse3 (sse3 sse 3dnowext 3dnow mmxext mmx asm 
C)
tc_memcpy: using sse for memcpy
[transcode] warning : no option -i found, reading from "/dev/zero"
[transcode] V: video buffer     | 10 @ 0x0
[import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null
[import_vob.so] v0.6.0 (2003-10-02) (video) MPEG-2 | (audio) MPEG/AC3/PCM | 
(subtitle)
[export_null.so] v0.1.2 (2001-08-17) (video) null | (audio) null
[export_ppm.so] v0.1.1 (2002-02-14) (video) PPM/PGM | (audio) MPEG/AC3/PCM
[import_vob.so] tccat -i "/dev/zero" -t vob -d 0 -S 0 | tcdemux -s 0x80 -x 
mpeg2 -S 0 -M 1 -d 0 | tcextract -t vob -a 0 -x mpeg2 -d 0 | tcdecode -x mpeg2 
-d 0 -y yv12
Segmentation fault
[brian@pc dvdrip10712.ppm]$ [demuxer.c] (pid=20030) '0x00000000' not yet 
supported
tc_memcpy: using sse for memcpy
[decode_mpeg2.c] libmpeg2 0.4.0b loop decoder
[decode_mpeg2.c] libmpeg2 acceleration: mmxext
...

and it just grinds away without anything further until I sigintr it.
The segfault there is new since upgrading my transcode subsequent to my
last posting.  Indeed a segfault is a bug, but can you see anything in
the command line args of the various commands that looks bad that might
be causing it?

> This might be an NPTL issue, so try enabling / 
> disabling dvd::rip's "Workaround transcode NPTL bugs" switch in the 
> Preferences.

Was/is already enabled.

> If that all doesn't work, the current dvd::rip CVS version has
> 
>   a) an improved NPTL workarounding
>   b) an alternate "slow" frame grabbing mechanism, which is slow
>      but bullet-proof

Ahhh.  Will have to find some time to get a CVS version rolled.

b.
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