RE: [libdv-dev] Problems with libdv

[Arne S. <ar...@sc...>]

Please see this file to reproduce the problem:

http://www.schirmacher.de/tmp/bug4.dv

The bug shows only when using the gtk display, not when using Xv. So I 
guess it must be somewhere in the RGB conversion.

This file shows more color conversion problems: Check the orange balloon. 
This is also visible only in the gtk display version of playdv.

http://www.schirmacher.de/tmp/bug1.dv

I noticed a strange effect when running playdv and using the Xv display 
method: It incorrectly calculates the fps value printed to stdout. It 
prints only "nan". I have a similar effect in Kino, where I calculated a 
fps value too. Maybe this has something to do with fpu registers used by 
mmx code?

The header files now correctly compile under C++, however the result won't 
link because the 'extern "C" { ' directive is missing. (Sorry, I forgot to 
mention this in the last email).

Arne


-----Original Message-----
From:	Charles 'Buck' Krasic
Sent:	Saturday, January 06, 2001 12:24 AM
To:	Arne Schirmacher
Cc:	lib...@li...
Subject:	Re: [libdv-dev] Problems with libdv


Arne Schirmacher <ar...@sc...> writes:

> I have sometimes a coredump when decoding DV data. It happens when
> the camcorder is in fast play or play-backwards mode (hitting the
> wind or rewind key during playing). The decoded image is very
> scrambled (but identical to the camcorder display), but sometimes
> the program crashes. You can probably easily reproduce it using
> Kino's preview window.

I tried for a few minutes to reproduce the problem.  I hit various
combinations of ff and rwd during play.  I didn't get a crash.

> I can also send a short DV file.

I think that would be best.

> Another (easy) problem: the header files installed by `make install`
> won't compile with C++. There is a variable named 'private'
> somewhere, which is a reserved keyword. Also, one header file is
> missing (bitstream.h).

The fixups for this are in libdv CVS.

> Arne

-- Buck

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