shmsrc/shmsink plugin

[Pazzo Da Legare]

I forgot to add my version reference:

gst-launch-0.10 version 0.10.35
GStreamer 0.10.35
https://launchpad.net/distros/ubuntu/+source/gstreamer0.10

on Ubuntu 11.10 at 64bit

pz

2012/2/21 Pazzo Da Legare <pazzodalegare at gmail.com>:
> Uh uh someone claims this problem here:
>
> https://bugzilla.gnome.org/show_bug.cgi?id=669697
>
>
> 2012/2/21 Pazzo Da Legare <pazzodalegare at gmail.com>:
>> I'm trying to use shmsrc/shmsink to decode a video source once and use
>> decoded video from many application so I start testing the plugins
>> using videotestsrc to produce a test stream and many consumer to
>> receive it
>>
>>
>> Producer:
>> gst-launch videotestsrc ! shmsink socket-path=/tmp/dudda
>> shm-size=10000000 wait-for-connection=false preroll-queue-len=5
>>
>> Consumers:
>>
>> gst-launch shmsrc socket-path=/tmp/dudda !
>> "video/x-raw-yuv,format=(fourcc)YUY2, color-matrix=(string)sdtv,
>> chroma-site=(string)mpeg2,width=(int)320, height=(int)240,
>> framerate=(fraction)30/1" ! autovideosink
>>
>> But when I start the fifth (sometimes the forth) consumer I ran into
>> problem: which are the limitation of shmsrc, I wonder the use of a
>> global lock.
>>
>> The message I got is:
>>
>> gst-launch shmsrc socket-path=/tmp/blah !
>> "video/x-raw-yuv,format=(fourcc)YUY2, color-matrix=(string)sdtv,
>> chroma-site=(string)mpeg2,width=(int)320, height=(int)240,
>> framerate=(fraction)30/1" ! autovideosink
>> Setting pipeline to PAUSED ...
>> Pipeline is PREROLLING ...
>> ERROR: from element /GstPipeline:pipeline0/GstCapsFilter:capsfilter0:
>> Filter caps do not completely specify the output format
>> Additional debug info:
>> gstcapsfilter.c(392): gst_capsfilter_prepare_buf ():
>> /GstPipeline:pipeline0/GstCapsFilter:capsfilter0:
>> Output caps are unfixed: EMPTY
>> ERROR: pipeline doesn't want to preroll.
>> Setting pipeline to NULL ...
>> Freeing pipeline ...
>>
>> Any clue?
>>
>> Maurizio