[FFmpeg-user] dvd2concat error with loopback mounted ISO

Nicolas George george at nsup.org
Wed Dec 3 21:21:43 CET 2014

Le tridi 13 frimaire, an CCXXIII, Adrian Meyer a écrit :
> I am mounting an ISO through loopback and I get 5 messages from libdvdread through lsdvd and 1 from perl crashing on the eval:
> libdvdread: Attempting to use device /dev/loop0 mounted on /media/raid/Video/divx/iso for CSS authentication
> libdvdread: No VTS_TMAPT available - skipping.
> libdvdread: No VTS_TMAPT available - skipping.
> libdvdread: No VTS_TMAPT available - skipping.
> Couldn't read enough bytes for title.
> Bad name after device' at (eval 5) line 2.

Can you show the output of "lsdvd -Op -x /dev/loop0"? Please make sure you
distinguish stdout and stderr, for example by redirecting each in a separate
file ("> log_stdout 2> log_stderr")?

> I am not a perl programmer. How would I manage to ignore STDERR in this
> section of dvd2concat to for lsdvd only if it was succesfull? The -q on
> lsdvd does not suppress the output:

There is no need to ignore stderr, it is already written separately. You
would not see it on the terminal otherwise.

What you report looks like a bug in lsdvd (its output in -Op mode should be
valid perl under any circumstance), but I would need to see the output you
get, because I can not reproduce the problem with my version and the ISO
file I have laying around.


  Nicolas George
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-user/attachments/20141203/2dce6f22/attachment.asc>

More information about the ffmpeg-user mailing list