Swfdec - Mar 2008 - [Bug 14875] New: crash with oss backend if /dev/dsp can not be opened

http://bugs.freedesktop.org/show_bug.cgi?id=14875

           Summary: crash with oss backend if /dev/dsp can not be opened
           Product: swfdec
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: library
        AssignedTo: swfdec at lists.freedesktop.org
        ReportedBy: riccardo at datahost.it
         QAContact: swfdec at lists.freedesktop.org


Latest git, i'm using alsa oss emulation.

Failed to open /dev/dsp
**
** Swfdec-Gtk:ERROR:(swfdec_playback.c:225):audio_removed: code should not be
reached

Program received signal SIGABRT, Aborted.
---Type <return> to continue, or q <return> to quit---
[Switching to Thread 0xb7078a40 (LWP 12545)]
0xb721e546 in raise () from /lib/libc.so.6
(gdb) bt full
#0  0xb721e546 in raise () from /lib/libc.so.6
No symbol table info available.
#1  0xb721fd58 in abort () from /lib/libc.so.6
No symbol table info available.
#2  0xb74c934a in g_assertion_message () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0xb03f9110 in audio_removed (player=0xb6803c8, audio=0x3101, 
    sound=0xb292f98) at swfdec_playback.c:225
        walk = (GList *) 0x6
        __PRETTY_FUNCTION__ = "audio_removed"
#4  0xb75343a5 in g_cclosure_marshal_VOID__OBJECT ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#5  0xb7526729 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#6  0xb753c445 in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#7  0x0adc6bd0 in ?? ()
No symbol table info available.
#8  0x00000000 in ?? ()
No symbol table info available.


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Riccardo Magliocchetti <riccardo at datahost.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|crash with oss backend if   |crash with oss backend if
                   |/dev/dsp can not be opened  |/dev/dsp can't be opened




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Riccardo Magliocchetti <riccardo at datahost.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical




--- Comment #1 from Riccardo Magliocchetti <riccardo at datahost.it> 
2008-05-28 01:47:39 PST ---
Crashers are severity critical. I must add that this will probably closed when
0.8.0 will be out since oss backend is gone.


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--- Comment #2 from Riccardo Magliocchetti <riccardo at datahost.it> 
2008-08-15 02:30:09 PST ---
Created an attachment (id=18295)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18295)
remove assert from oss playback

I had this change locally, it workarounds it removing the assert. I haven't
noticed anything wrong with this.


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Riccardo Magliocchetti <riccardo at datahost.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX




--- Comment #3 from Riccardo Magliocchetti <riccardo at datahost.it> 
2008-09-08 04:34:02 PST ---
0.8 is out, oss is gone.


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--- Comment #4 from Rafael Diniz <rafael at riseup.net>  2008-09-12
07:10:47 PST ---
People,
This is a mistake in my opinion.
IMHO, OSS 4 is out and is really much better than ALSA (kernel mode mixing,
independent volume control for applications, ...).
OSS 4 is widely used as sound system in Solaris, FreeBSD, Unixware and Linux.

If you plan to make swfdec portable, keep OSS supported is a nice thing :)


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--- Comment #5 from Riccardo Magliocchetti <riccardo at datahost.it> 
2008-09-12 07:27:03 PST ---
The problem (In reply to comment #4)
> People,
> This is a mistake in my opinion.
> IMHO, OSS 4 is out and is really much better than ALSA (kernel mode mixing,
> independent volume control for applications, ...).
> OSS 4 is widely used as sound system in Solaris, FreeBSD, Unixware and
Linux.
I think if someone step up to ressurrect, improve and maintain oss audio
backend it can be put back. I have tried to do this myself with the patches
posted here and at bug 13772. And failed :(
> If you plan to make swfdec portable, keep OSS supported is a nice thing :)
There is a pulseaudio backend for that and other purposes. But i have to agree
that pulseaudio could be a bit painful at the moment. But as you can see from
bug 
13772#c12 is the swfdec future.


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--- Comment #6 from Rafael Diniz <rafael at riseup.net>  2008-09-12
12:02:28 PST ---
It's true that I can run pulseaudio on top of OSS.
BTW, if I have time in the next week, I'll try to write a good OSS backend
using the OSS 4 ioctl()'s (and, may be, just don't support the old dead
OSS 3
API).


Thank you all for the great swfdec :)


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