Hello,
I'm new to gstreamer and need a hint on how to synchronize an audio stream
from a filesrc or fdsrc with the system clock.
My setup is like this:
I have a little Python application that utilizes gstreamer to convert a raw
CD-like audio stream into vorbis and stream it with an fdsink through a pipe
to another application.
I use the following code snippet (Python).
pipeline = gst.parse_launch("filesrc location=/home/steven/03.pcm ! capsfilter
caps=audio/x-raw-int,rate=44100,channels=2,depth=16,signed=true ! identity
datarate=176400 sync=true ! audioresample ! audioconvert ! vorbisenc ! oggmux
! fdsink fd="+str(pipeout))
pipeline.set_clock(gst.system_clock_obtain())
pipeline.set_state(gst.STATE_PLAYING)
It kind of works, but it encodes the data as fast as it can. I however want it
to synchronize the playback / encoding speed with real time. I want to avoid
doing the time handling on the application at the other end of the pipe
because I dont't want to touch or analyse the data there in detail.
As you can see I tried to set the pipeline clock to the system clock and use
identity to set the datarate and synchronize it with the clock but
unfortunately it does not work.
I probably misunderstood some of the concepts of gstreamer here or just forgot
about something. Please give me a hint on how I can solve this problem.
Cheers,
Steven
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