gstreamer shmsrc and shmsink with h264 data

[anjo]

i am trying to share an h264 encoded data from gstreamer to another two
processes(both are based on gstreamer).After some research only way i found
is to use the shm plugin. this is what i am trying to do

gstreamer--->h264 encoder--->shmsink
shmrc--->process1
shmrc--->process2
i was able to get raw data from videotestsrc and webcam working. But for
h264 encoded data it doesn't. this is my test pipeline

gst-launch-1.0 videotestsrc ! video/x-raw,width=640,height=480,format=YUY2 ! 
x264enc ! shmsink     socket-path=/tmp/foo     sync=true     wait-for-
connection=false     shm-size=10000000

gst-launch-1.0 shmsrc socket-path=/tmp/foo ! avdec_h264 ! video/x-
raw,width=640,height=480,framerate=25/1,format=YUY2 !   autovideosink
 but this dosn't work and the shmsrc pipeline always closes.
have anyone tried shm plugins with h264 encoded data, please help. Any
examples would be fine





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