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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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