[gst-devel] Problems when using osssink in ARM

[何慧敏]

Hi all,
Now I have ported the gstreamer to ARM 11, and there is a OSS driver for this ARM board. So I am trying to make this sound work.I have installed the plugin for ossaudio.But when i trying to play some media file, no sound came out, and the screen just show the PLAYING message ...
some addtional messages:
the osssink does play the audiotestsrc,and sounds a single tone;
the audioconvert works fine when "gst-launch -v filesrc location="/usr/local/bin/1.mp3" ! flump3dec ! audioconvert ! wavenc ! filesink location="/usr/local/bin/1.wav" ",I can hear the wav file on my PC,so the decodec is fine;
even no sound comes out when playing, but there are some noises when pipeline is just prerolling just before PLAYING.
Here are the command and output:
***********************************************************************************************************
mx31# gst-launch -v filesrc location="/usr/local/bin/1.mp3" ! flump3dec ! audioconvert ! audioresample ! osssink
Setting pipeline to PAUSED ...
MXC Enable Codec(write)
Feb 6 12:04:07 freescale user.warn kernel:
Feb 6 12:04:07 freescale user.warn kernel: MXC Enable Codec(write)
Pipeline is PREROLLING ...
/pipeline0/flump3dec0.src: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(int)2
/pipeline0/audioconvert0.src: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(i2
/pipeline0/audioconvert0.sink: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=(2
/pipeline0/audioresample0.src: caps = audio/x-raw-int, width=(int)16, depth=(int)16, signed=(boolean)true, endianness=(int)1234, channels=(int)2, rate=(int)0
/pipeline0/audioresample0.sink: caps = audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16, depth=(int)16, rate=(int)44100, channels=2
/pipeline0/osssink0.sink: caps = audio/x-raw-int, width=(int)16, depth=(int)16, signed=(boolean)true, endianness=(int)1234, channels=(int)2, rate=(int)48000
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstAudioSinkClock
mxc_audio_output_block: count = 1024
Feb 6 12:04:37 freescale user.warn kernel: mxc_audio_output_block: count = 1024
*************************************************************************************************************
So I'm studying the code of osssink although I am a totally newcomer to this gstreamer and Linux things.
Many Thanks,
Joyious
   
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