mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-03 09:01:52 -05:00
170 lines
3.3 KiB
Text
170 lines
3.3 KiB
Text
|
|
PCM common fields:
|
|
type PCM type
|
|
[comment] Saved comments
|
|
|
|
PCM types:
|
|
|
|
- hw Kernel PCM
|
|
Fields:
|
|
card Card name or number
|
|
[device] Device number (default 0)
|
|
[subdevice] Subdevice number, -1 first available (default -1)
|
|
|
|
- plug Format adjusted PCM
|
|
Fields:
|
|
sname Slave PCM name
|
|
ttable Transfer table (bidimensional compound of
|
|
cchannels * schannels numbers)
|
|
.C
|
|
.S route value
|
|
|
|
- linear Linear format conversion PCM
|
|
- adpcm IMA-ADPCM format conversion PCM
|
|
- alaw A-Law format conversion PCM
|
|
- mulaw Mu-Law format conversion PCM
|
|
Fields:
|
|
sformat Slave format
|
|
sname Slave PCM name
|
|
|
|
- rate Rate conversion PCM
|
|
Fields:
|
|
[sformat] Slave format (default client format)
|
|
srate Slave rate
|
|
sname Slave PCM name
|
|
|
|
- route Attenuated static route PCM
|
|
Fields:
|
|
[sformat] Slave format (default client format)
|
|
[schannels] Slave channels (default client channels)
|
|
sname Slave PCM name
|
|
ttable Transfer table (bidimensional compound of
|
|
cchannels * schannels numbers)
|
|
.C
|
|
.S route value
|
|
|
|
- multi Linked PCMs (exclusive access to selected channels)
|
|
Fields:
|
|
slave Slaves definitions
|
|
.N Slave definition
|
|
.name Slave PCM name
|
|
.channels Slave channels
|
|
binding Bindings table
|
|
.N Binding for client channel N
|
|
.sidx Slave key for slave definition
|
|
.schannel Slave channel
|
|
|
|
- file File plugin
|
|
Fields:
|
|
sname Slave PCM name
|
|
file File name (or fd)
|
|
[format] File format (NYI)
|
|
|
|
|
|
- null Null endpoint plugin (NYI)
|
|
Fields:
|
|
time Time related or not
|
|
|
|
- shm Shared memory client PCM
|
|
Fields:
|
|
server Server name
|
|
sname Slave PCM name on server
|
|
|
|
- share Share PCM
|
|
Fields:
|
|
sname Slave name
|
|
[schannels] Slave channels
|
|
[sformat] Slave format
|
|
[srate] Slave rate
|
|
binding Bindings table
|
|
.N Slave channel for client channel N
|
|
|
|
- mix Mix PCM (NYI)
|
|
Fields:
|
|
sname Server name
|
|
binding Bindings table
|
|
.N Binding for client channel N
|
|
.schannel Slave channel
|
|
|
|
- droute Attenuated dynamic route PCM (NYI)
|
|
Fields:
|
|
[sformat] Slave format (default client format)
|
|
[schannels] Slave channels (default client channels)
|
|
sname Slave PCM name
|
|
binding Bindings table
|
|
.N Binding entry
|
|
.cchannel Client channels
|
|
.C Client channel
|
|
.schannel Slave channels
|
|
.S Slave channel
|
|
.control Control name of C * S values or C values (only if C == S)
|
|
|
|
- lbserver Loopback server (NYI)
|
|
Fields:
|
|
name Loopback PCM ID (useful for multiple loopback served by the
|
|
same server)
|
|
[socket] PF_LOCAL socket name to listen
|
|
[port] PF_INET port number to listen
|
|
sname Slave name
|
|
|
|
|
|
CTL common fields:
|
|
type CTL type
|
|
[comment] Saved comments
|
|
|
|
- hw Kernel CTL
|
|
Fields:
|
|
card Card name or number
|
|
|
|
- shm Shared memory client CTL
|
|
Fields:
|
|
server Server name
|
|
sname Slave CTL name on server
|
|
|
|
Other related definitions:
|
|
|
|
- pcmtype PCM type
|
|
Fields:
|
|
[lib] Library file
|
|
open Open function
|
|
|
|
- ctltype Control type
|
|
Fields:
|
|
[lib] Library file
|
|
open Open function
|
|
|
|
- server Server
|
|
Fields:
|
|
host host where the server is located (if map to local address
|
|
server is local, and then it may be started automatically)
|
|
[socket] PF_LOCAL socket name to listen/connect
|
|
[port] PF_INET port number to listen/connect
|
|
|
|
Some examples:
|
|
|
|
pcmtype.hw {
|
|
open _snd_pcm_hw_open
|
|
}
|
|
|
|
pcmtype.plug {
|
|
open _snd_pcm_plug_open
|
|
}
|
|
|
|
pcm.trident {
|
|
type hw
|
|
card 0
|
|
device 0
|
|
}
|
|
|
|
pcm.ice1712 {
|
|
type hw
|
|
card 1
|
|
device 0
|
|
}
|
|
|
|
pcm.ice1712_spdif {
|
|
type plug
|
|
ttable.0.8 1
|
|
ttable.1.9 1
|
|
sname ice1712
|
|
}
|