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- #
- # Guide to stream sound from one computer to another with
- # alsa trough ssh using ffmpeg and mplayer.
- #
- #
- ########################################### modprobe
- $ sudo modprobe snd-aloop
- # if alsa driver is compiled without snd-aloop module
- # install driver with ./configure --with-cards=aloop --with-sequencer=yes
- # Source: http://www.alsa-project.org/main/index.php/Matrix:Module-aloop#The_module_options_for_snd-aloop
- ########################################### ~/.asoundrc
- pcm.!default {
- type asym
- playback.pcm "LoopAndReal"
- #capture.pcm "looprec"
- capture.pcm "hw:0,0"
- }
- pcm.looprec {
- type hw
- card "Loopback"
- device 1
- subdevice 0
- }
- pcm.LoopAndReal {
- type plug
- slave.pcm mdev
- route_policy "duplicate"
- }
- pcm.mdev {
- type multi
- slaves.a.pcm pcm.MixReale
- slaves.a.channels 2
- slaves.b.pcm pcm.MixLoopback
- slaves.b.channels 2
- bindings.0.slave a
- bindings.0.channel 0
- bindings.1.slave a
- bindings.1.channel 1
- bindings.2.slave b
- bindings.2.channel 0
- bindings.3.slave b
- bindings.3.channel 1
- }
- pcm.MixReale {
- type dmix
- ipc_key 1024
- slave {
- pcm "hw:0,0"
- rate 48000
- #rate 44100
- periods 128
- period_time 0
- period_size 1024 # must be power of 2
- buffer_size 8192
- }
- }
- pcm.MixLoopback {
- type dmix
- ipc_key 1025
- slave {
- pcm "hw:Loopback,0,0"
- rate 48000
- #rate 44100
- periods 128
- period_time 0
- period_size 1024 # must be power of 2
- buffer_size 8192
- }
- }
- # Source: https://bbs.archlinux.org/viewtopic.php?pid=1153194#p1153194
- ########################################### ffmpeg/ssh/mplayer
- $ ffmpeg -f alsa -ac 2 -i hw:1,1 -f ogg - | ssh user@host mplayer/mplayer.exe - -idle -demuxer ogg
- # DTS Experiment
- $ ffmpeg -f alsa -channel_layout stereo -ac 2 \
- -i hw:1,1 -f dts -strict -2 - | \
- ssh -c arcfour dwv@twily mplayer/mplayer.exe - \
- -idle -quiet -nocache -noautosub -novideo \
- -demuxer lavf
- # Source: http://unix.stackexchange.com/questions/116919/redirect-sound-microphone-via-ssh-how-to-telephone-via-ssh
- #
- # client require ffmpeg and ssh client
- # host require mplayer and ssh server
- #
- # -i hw:1,1 is Loopback device 1
- # find card using $ aplay -l
- # (hw:Card,Device,Subdevice)
- #
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