CPU utilization when using gst-launch play mp3

[Soho Soho123]

Dears,

Could you kindly show the example about the option?
Since I  do not enable Orc lib.
I do not have idea about the option to reduce CPU utilizatgion.
And do you have suggestion about mp3 decoder?
mad is used currently.

Thanks!
sOHO

2012/6/29 Jan Schmidt <thaytan at noraisin.net>:
> On Fri, 2012-06-29 at 15:25 +0200, Stefan Sauer wrote:
>> On 06/29/2012 10:11 AM, brad2012 wrote:
>> > Dears,
>> >
>> > Is there any method to reduce CPU utilization when play mp3?
>> >
>> > When I try to play mp3 by the command:
>> > gst-launch-0.10 filesrc location=/var/tmp/usb/sda1/audio_src/1503-9.mp3 !
>> > mad ! audioconvert ! audioresample ! audio/x-raw-int,
>> > rate=48000,width=16,endianness=4321 ! alsasink device="hw:0,0"
>> Yes there is a simple way to lower the CPU load. Use an optimized mp3
>> decoder. Avoid audioconvert (by ensuring your mp3 decoder will output in
>> a format suitable for your sink). Also fix your alsa driver to properly
>> report formats, so that you don't need the capsfilter.
>
> Another couple of options: run gst-inspect on audioconvert and
> audioresample, and note that both have options for reducing the amount
> of work they do (turning off dithering for audioconvert, and reducing
> the quality/filter length of the resampling)
>
> - Jan.
>
>>
>> Stefan
>> >
>> > the alsa device is I2S+audio codec in our embedd platform.
>> > the device report sample rate available is 48K
>> > but I have to set playing rate to audio codec  is 8Khz, such that the audio
>> > data can be sent to codec.
>> >
>> > But it is now problem about playing .wav file with sample rate conversion by
>> > "aplay" on our embedded platform (without any modificiation).
>> >
>> > Is it possible to reduce CPU utilization about gst-launch playing mp3 audio?
>> >
>> >
>> >
>> >
>> > --
>> > View this message in context: http://gstreamer-devel.966125.n4.nabble.com/CPU-utilization-when-using-gst-launch-play-mp3-tp4655434.html
>> > Sent from the GStreamer-devel mailing list archive at Nabble.com.
>> > _______________________________________________
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>>
>>
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>
> --
> Jan Schmidt <thaytan at noraisin.net>
>
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