On Thu, Jun 17, 2010 at 05:03:50AM +0000, Jacob Meuser wrote:
> On Wed, Jun 16, 2010 at 11:50:18PM +0200, Alexandre Ratchov wrote:
> > On Wed, Jun 16, 2010 at 09:44:16PM +0200, Adam Borbely wrote:
> > > hi!
> > >
> > > after updated from 4.6 to 4.7 I can not play tv with mplayer.
> > > mplayer is installed as a package:
> > >
> > > * mplayer-20090708p4 movie player supporting MPEG, DivX, AVI, ASF, MOV &
> > > more
> > >
> > > krumpli$ r gd
> > > gdb mplayer
> > > GNU gdb 6.3
> > > Copyright 2004 Free Software Foundation, Inc.
> > > GDB is free software, covered by the GNU General Public License, and you
> > > are
> > > welcome to change it and/or distribute copies of it under certain
> > > conditions.
> > > Type "show copying" to see the conditions.
> > > There is absolutely no warranty for GDB. Type "show warranty" for
> > > details.
> > > This GDB was configured as "i386-unknown-openbsd4.7"...(no debugging
> > > symbols found)
> > >
> > > (gdb) set args -monitoraspect 16:10 -xy 2 -fstype none -zoom -vo x11
> > > tv:// -tv driver=bsdbt848:freq=224.25
> > > (gdb) break sio_setpar
> > > Breakpoint 1 at 0x3dfda4c: file /usr/src/lib/libsndio/sndio.c, line 292.
> > > (gdb) r
> > > Starting program: /usr/local/bin/mplayer -monitoraspect 16:10 -xy 2
> > > -fstype none -zoom -vo x11 tv:// -tv driver=bsdbt848:freq=224.25
> > > Breakpoint 1 at 0xe40da4c: file /usr/src/lib/libsndio/sndio.c, line 292.
> > > MPlayer SVN-r29414-snapshot-3.3.5 (C) 2000-2009 MPlayer Team
> > >
> > > Playing tv://.
> > > TV file format detected.
> > > Selected driver: bsdbt848
> > > name: Brooktree848 Support
> > > author: Charles Henrich
> > > comment: in development
> > > [Switching to process 31630, thread 0x8a620c00]
> > >
> > > Breakpoint 1, sio_setpar (hdl=0x87508b00, par=0xcfbe19a0) at
> > > /usr/src/lib/libsndio/sndio.c:292
> > > 292 hdl->eof = 1;
> > > (gdb) p hdl
> > > $1 = (struct sio_hdl *) 0x87508b00
> > > (gdb) n
> > > 291 DPRINTF("sio_getpar: already started\n");
> > > (gdb) n
> > > 292 hdl->eof = 1;
> > > (gdb) p hdl
> > > $2 = (struct sio_hdl *) 0x87508b00
> > > (gdb) r
> > > The program being debugged has been started already.
> > > Start it from the beginning? (y or n) n
> > > Program not restarted.
> > > (gdb) c
> > > Continuing.
> > >
> > > Breakpoint 1, sio_setpar (hdl=0x0, par=0x8512ae0c) at
> > > /usr/src/lib/libsndio/sndio.c:292
> > > 292 hdl->eof = 1;
> > > (gdb) bt
> > > #0 sio_setpar (hdl=0x0, par=0x8512ae0c) at
> > > /usr/src/lib/libsndio/sndio.c:292
> > > #1 0x1c140188 in ?? ()
> > > #2 0x00000000 in ?? ()
> > >
> > > I don't know too much about sndio the only thing I see is that hdl is NUL
> > > when
> > > sio_setpar is called the second time.
> > >
> > > advices?
> > >
> >
> > does the error occur if the bt848 is not involved? any hints
> > on how to reproduce it without a bt848?
> >
> > You could try to ``export SIO_DEBUG=1'' and see if you get
> > more information on what causes the crash.
>
> this is the stupidity of the bsdbt848 mplayer driver. it has it's
> own audio code. what needs to happen (as I said when I sent the
> untested patch to ports@ (and I was clear it was untested)) is to
> remove the audio code from bsdbt848 completely, finish the sndio
> streams code (there's a start there but it's unfinished and
> untested). actually, there's absolutely no need to use the audio
> sampling interface when watching TV (recording yes, watching no).
> that's the really stupid part.
>
> oh, and if anyone ever wants to record audio/video with mencoder
> using uvideo(4), the mplayer sndio streams implementation will need
> to be finished. (though I've never been able to capture any video
> with mencoder and a uvideo(4)).
>
> --
> jake...@sdf.lonestar.org
> SDF Public Access UNIX System - http://sdf.lonestar.org
>
>
upgraded to current solved the segfault problem but now i do not have
any picture from the tv card only a big blue screen. there are no error
messages in /var/log/messages or dmesg|tail so the driver reports everything
is okay. what is the way to have any more detailed info/debug messages from
the kernel/driver to see what is going wrong?
thank you
Adam
