Hi all,
I'm trying to play data from a machine that does not have a sound card
on a machine that does. I was able to successfully create a file using
"type file" as the default in the asound.conf, and I was able to prove
this file would play on the other machine, so I know what I want to do
can be done. Regretfully, there is memory limitations on the machines
that I am working on that makes this solution unusable. Thus, I've
instead tried to get the data across using "type shm" and then using a
socket to run the data through. A guy I'm working with created a socket
server that attempts to accomplish this. When I run this socket server,
I can see that the socket is able to receive data, but I get an error
where I performed the aplay that says "read size error." This error is
occurring in code specific to shm. It appears that after the data is
written to the socket, aplay does a read. For some reason the read is
failing, because the value returned is a different value than the size
of the buffer received. I also noticed that there is an aserver
application that comes with the alsa-lib's. I've attempted to use this
in place of the homegrown alsa server, but I can't figure out what it is
supposed to do. I run the aserver and then the aplay, and they both
just sit there. I have not been able to find very much documentation
regarding aserver, so I'm not sure what to do beyond what I'm doing.
Does anyone have any experience with shm or aserver that may be able to
give me clues on how to get a solution using "type shm" to work?
Does anyone know if there is any documentation out there that explains
how to use aserver? Here is my current asound.conf:
pcm.!default{
type shm
server socketserver
pcm "default"
}
server. socketserver{
host 127.0.0.1
socket "/tmp/alsa.sock"
}
This is the command I use to run the aserver: ./aserver socketserver
If anybody in the future wants to create a file from what is played on a
machine that does not have a sound card, here is my asound.conf that
successfully accomplished this:
pcm.!default{
type file
file "/tmp/out.raw"
format "raw"
slave.pcm "null"
}
Any help would be much appreciated.
Lee
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