[gst-devel] GST alsasink problem

Eric Zhang nicolas.m.zhang at gmail.com
Tue Dec 9 03:23:16 CET 2008

Hi, gstreamer-devel:

    I think you'd better add some "g_message" or "printf" codes into your
gstbasesink.c and find out where the pipeline blocked, that's the key point.
Blocking is a common problem when developing gstreamer applications, at
least for me. And my solution is first find out where it blocks -- mostly
always blocks at basesink.

    I noticed your basesink used push mode so you can first add printf codes
in "gst_base_sink_chain" --> "gst_base_sink_chain_unlock" -->
"gst_base_sink_queue_object_unlocked" ......

Eric Zhang

2008/12/5 vinod james <vinod.james at gmail.com>

> Hi,
> I have done a source installation of gstreamer and gstreamer-base plugins
> version 0.10.21
> I am trying few things mentioned in the faq document
> If I say
> $aplay -v test.wav,
> I am able to play the wav file through alsaplay, which shows that alsa
> driver is installed in my PC
> If I do
> $gst-inspect alsasink
> shows that alsasink is installed.
> And when i do
> $gst-launch filesrc location=test.ogg ! decodebin ! audioconvert !
> audioresample ! filesink location=test.raw
> it writes the decoded raw samples into the file and I am  able to play
> test.raw in application like cooledit
> But if I do
> $gst-launch filesrc location=test.ogg ! decodebin ! audioconvert !
> audioresample ! alsasink
> it goes into infinite loop.
> The alsasink plugin is not able to detect the alsadriver I guess.
> How do I debug this problem?
> Pls help me
> Regards
> Vinod James
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