how to bypass software mp3 decoder in gstreamer if usb soundcard has support h/w mp3 decoder?

[Diaz Soho]

Hi All,


If the sound card has supported mp3 h/w decoder , then how to bypass
software mp3 (mad) decoder when I use gst-launch to play mp3 audio file?
if the pipe like "filesrc location=file.mp3 ! mpegaudioparse ! alsasink" ,
it seems mad decoder does not included and seems workable.
is it support in gstreamer 0.10.36?

if I would like to add the behavior to my dlna application(rygel),
which kind of condition can be treated as "mad decoder should be bypass"?
because by the behavior of rygel , the pipe is created automatically (auto
detect) by "Playbin2".
is it possible to do bypass software decoder if autodetect function get
caps that does NOT RAW format (like SNDRV_PCM_FORMAT_MPEG)?
Is there any one have idea?


Any inputs is very very appreciated!!!!
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