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Subject: Re: Seeking in opus files leads to PANIC

Re: Seeking in opus files leads to PANIC

From: Bernhard M. <bernhard_at_svenskaa.net>
Date: Sat, 04 Oct 2014 11:08:53 +0200

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Hi!

Same problem here with also Sansa Clip Zip (Rockbox version:
0f61e38-140916). When I shutdown the device that played an opus-file
on startup later it starts and shutdown directly with the already
named message.
There are 2 ways to get around. First: start with the original
firmware and delete the bookmark. The other way is to try to jump as
quickly you can to the next file as soon as the device starts.
But I don't have the searchproblem. I can easy jump forward in the
played file to get back to the point I left listening.

Greetings

Bernhard

On 2014-10-04 05:26, Andrew Skretvedt wrote:
> Salutation: this Rockbox is some pretty awesome software!
>
> Hardware: Sansa Clip Zip, AMSv2 variant 1 Software: boot 4.0;
> 515a3c5-140924, and others
>
> Problem: Seeking or bookmark starts with opus files may cause
> Rockbox to crash.
>
> When I seek files encoded with the Opus codec (.opus extension, in
> an Ogg container), the system may occasionally crash and present
> the following screen:
>
> ---------------- *PANIC* Stkov codec pc:300685E8 sp:3 A: 30091AF8
> bt end ---------------- Any keypress reboots the unit, but any
> attempt to restart playback of the offending file will then
> generate t
his screen:
>
> ---------------- Undefined instru
>
>
>
>
> ----------------
>
> Any keypress again reboots the unit, but the system will /not/
> successfully play the offending file again until the system is
> powered down normally and powered back up. In addition, the problem
> is not necessarily limited to seeking activity. In some
> circumstances, if the file is restarted partway through via a
> bookmark, the above panic is also manifest. I have not noticed the
> issue in any other codecs (e.g. Vorbis). And the issue is not
> affected by the setting of [Settings->Playback Settings->Frequency]
> (IIRC Opus files decode uniformly at 48kHz regardless of the sample
> rate of the source material).
>
> The problem is more likely to manifest itself when the file is long
> (not necessarily large). I routinely play opus files over 2h
> runtime at bitrates =< 32kbits/s.
>
> If problematic files are started at the beginning, and never
> seeked, the panic will not occur during play and file playback will
> end normally.
>
>
>
> -------------------------------------------------------------------
>
>
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Received on 2014-10-04


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