Hi shenhong,
A simply solution you can try.
Put a queue before alsasink, when queue is dry, pause pipeline, and
restart pipeline when queue bufferred enough data.
Best Regards
Zhao Liang
________________________________
From: Shenhong Wang [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 18, 2008 4:44 PM
To: Zhao Liang-E3423C; gstreamer-embedded@lists.sourceforge.net
Subject: RE: [gst-embedded] Question on gst_plugin alsasink
Hi, Zhao Liang:
Generally, the aacdec &alsasink will not play out any audio
frames(packets) after its source element has a break to send audio
frames (packets) to them. It looks the alsasink drops all
frames(packets) from the break. The break is needed because we have more
video frames and sometime the wireless signal is not good.
It looks the aacdec is slower than the expectation from alsasink.If so,
how to fix the issue? thanks!
best Regards!
Shenhong
________________________________
Subject: RE: [gst-embedded] Question on gst_plugin alsasink
Date: Wed, 18 Jun 2008 14:29:27 +0800
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED];
gstreamer-embedded@lists.sourceforge.net
Hi Shenhong,
Your issue is very similar with the issue I even met. I think it
is due to gstbaseaudiosink/gstaudiosink, it will drop the packets by
gstringbuffer when read rate is bigger than write rate in ringbuffer,
please see gstringbuffer.c gst_ring_buffer_commit_full ().
For the rootcause, I think maybe the alsasink audiodevice buffer
is too big or your aac decoder is too slow.
Best Regards
Zhao Liang
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Shenhong Wang
Sent: Wednesday, June 18, 2008 2:21 PM
To: gstreamer-embedded@lists.sourceforge.net
Subject: [gst-embedded] Question on gst_plugin alsasink
Dear all,
Now we are using alsasink to play audio on Marvell PXA310 board.
The audio is aac format. The audio frames(packets) are frequently sent
to the aac decoder & alsasink to play out. Unfortunately only the
begining frames can be played out and then nothing is played out.
If we save those audio frames into a file, the aac
decoder&alsasink can be successfully played out. It means the audio
frames are ok.
Could anyone tell me what's the difference for alsasink to
process audio packets and files? How to fix the above issue? thank you
very much!
Best Regards!
Shenhong WANG
________________________________
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