Re: Helix MP3 decoder playback problem on ARM9E

On Tue, Sep 8, 2009 at 8:37 PM, Gregory Wright <[email protected]> wrote:

>  On Sep 3, 2009, at 5:14 AM, Santhosh Muralidharan wrote:
>
> Hi All,
>>
>>    I've ported Helix DNA Client onto ARM9E with linux running on it. I've
>> integrated Helix DNA client to qt-extended using
>> helix-client-src-cayenne-qtopia-4.3.0.tar.gz. When I tried MP3 playback
>> using the splay application, the audio is played with noise and the audio
>> playback is not at constant rate. splay application alone uses around 86 %
>> of cpu. I tried dumping the output of the decoder and there is no problem
>> with the output pcm.  Even without mp3 decoding, splay application takes
>> around 60 % of cpu, for parsing and rendering.
>>
>> The processor I use runs at 160 MHz.
>>
>> Has anyone faced the such problem in the past?
>> Is there any problem with respect to the MIPS consumed by the splay
>> application?
>>
>> Any input on this regard would be of great help.
>>
>
>
> Hmmmm. Autio only MP3 playback should not take that much CPU. Is this
> local or network playback?
>
> How did you take out MP3 decoding, did you just modify the code to skip
> it or did you use the NULL renderer?
>
> --greg.
>
>
>
Greg,

This is local playback.

      I didn't do any code changes in Helix DNA Client. Just integrated
Helix DNA client to Qt-Extended and cross compiled for ARM. For MP3
playback, I use 'splay' sample command line application that comes along
with Helix DNA client package.

Thanks,
San

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