Bug 100918

Summary:

redhat-credits causes audio distortion, but the ogg file by itself doesn't

Product:

[Retired] Red Hat Linux Beta

Reporter:

George Karabin <gkarabin>

Component:

redhat-artwork

Assignee:

Alexander Larsson <alexl>

Status:

CLOSED RAWHIDE

QA Contact:

Severity:

low

Docs Contact:

Priority:

medium

Version:

beta1

CC:

mitr

Target Milestone:

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Target Release:

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Hardware:

i386

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2003-08-08 14:22:29 UTC

Type:

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Regression:

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Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Bug Depends On:

Bug Blocks:

100644

Attachments:

Description	Flags
fixes the audio stuttering	none

Description George Karabin 2003-07-27 03:03:46 UTC

If I play /usr/share/redhat-credits.ogg with ogg123, it sounds nice a nice
guitar solo. If I run /usr/libexec/redhat-credits instead, I immediately hear a
low frequency ticking, at a couple of Hz. Then within a few seconds the guitar
begins to play, with the ticking accompanying it. It almost sounds like a drum
machine in the background - because the ticking isn't quite periodic it has some
rhythm to it.

P.S. Nice tune. Sounds like something that Margo of the Cowboy Junkies ought to
be singing to.

Comment 1 George Karabin 2003-07-27 03:09:08 UTC

Created attachment 93172 [details]
fixes the audio stuttering

All of the console output that ogg123 is generating is returnin a ton of error
messages, given the high rate at which it writes to the console. Using dup2 and
/dev/null is much more smooth - apparently it's a lot more expensive to write
to a nonexisting file handle than an existing one.

On my 1GHz Athlon, this is definitely noticeable. Maybe different grades of
hardware don't see the problem, maybe they do. In any case, a patch that makes
the program much more smooth is attached. :)

Comment 2 Miloslav Trmac 2003-07-27 21:20:22 UTC

Doh! I was suspecting the kernel...
What really happens is that the ogg123 uses file descriptor 2 for /dev/dsp
(because of the close (1), close (2) that shouldn't be there), and is sending
its status information with the sound data.

Comment 3 Miloslav Trmac 2003-07-27 21:23:10 UTC

*** Bug 81209 has been marked as a duplicate of this bug. ***

Comment 4 George Karabin 2003-07-27 22:21:14 UTC

Oops - yeah, that's what's going on. The "error message" theory was obviously a
product of sleep deprivation.... :)

Comment 5 Havoc Pennington 2003-07-28 00:39:55 UTC

Indeed, this looks like the right patch.
Doh. Fortunately I don't think I wrote that part of the code ;-)

Comment 6 Alexander Larsson 2003-08-06 09:48:43 UTC

I checked in the fix. It'll be in the next redhat-artwork build.

Comment 7 Alexander Larsson 2003-08-08 14:22:29 UTC

Fixed in 0.78-1