CVLC: alsa name?

Question

Someone know how to pass an alsa device name to cvlc? I did

aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=SB
    HDA ATI SB, VT1708S Analog
    Default Audio Device
sysdefault:CARD=SB
    HDA ATI SB, VT1708S Analog
    Default Audio Device
front:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    Front speakers
surround40:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=SB,DEV=0
    HDA ATI SB, VT1708S Digital
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 0
    HDMI Audio Output

and then edited vlcrc

alsa-audio-device=front:CARD=SB,DEV=0

I try also

alsa-audio-device=front:CARD=SB,DEV=0,0

But when i run cvlc give me device didn't exist,why? The problem is on cvlc only,not on vlc gui This is detailed output cvlc

VLC media player 2.0.6 Twoflower (revision 2.0.6-0-gbe9623c)
[0x1940e28] dummy interface: using the dummy interface module...
[0x7f502cc01ad8] main demux error: corrupt module: /usr/lib64/vlc/plugins/demux/libmpc_plugin.so
[0x7f502cc01ad8] main demux error: corrupt module: /usr/lib64/vlc/plugins/demux/libsid_plugin.so
[0x7f502cc02a28] main decoder error: corrupt module: /usr/lib64/vlc/plugins/codec/libfluidsynth_plugin.so
[0x7f500c0069c8] main audio output error: corrupt module: /usr/lib64/vlc/plugins/audio_output/libpulse_plugin.so
Fontconfig warning: FcPattern object size does not accept value "0"
ALSA lib conf.c:3314:(snd_config_hooks_call) Cannot open shared library (null)
ALSA lib conf.c:3777:(snd_config_update_r) hooks failed, removing configuration
[0x7f500c0069c8] alsa audio output error: cannot open ALSA device "sysdefault:CARD=SB": No such file or directory
[0x7f500c0069c8] main audio output error: Audio output failed
[0x7f500c0069c8] main audio output error: The audio device "sysdefault:CARD=SB" could not be used:
No such file or directory.
[0x7f500c0069c8] oss audio output error: cannot open audio device (/dev/dsp)
[0x7f500c0069c8] main audio output error: no suitable audio output module
Fontconfig warning: FcPattern object size does not accept value "0"
[0x7f502cdd4798] main decoder error: failed to create audio output
^Clibgcc_s.so.1 must be installed for pthread_cancel to work
A

derobert · Accepted Answer · 2015-05-11T21:02:40.983

1

~~Because the device name is front; the CARD=SB,DEV=0 part is telling you which device it corresponds to.~~

You you need to do something like alsa-audio-device=front.

VLC, at least in my testing, will take either front or front:CARD=SB,DEV=0. However, it will error out if the device isn't actually usable. E.g., aplay -L will happily list HDMI ports with nothing plugged into them, but attempting to play to them will produce that "No such file or directory" error.

edited May 11 '15 at 21:02

answered May 11 '15 at 20:29

derobert

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alsa audio output error: cannot open ALSA device "front": file or directory didn't exist – elbarna May 11 '15 at 20:43
@elbarna That's weird—actually both `front` and `front:CARD=Intel,DEV=0` work on my machine. Are you sure you have that output? If I try an output that could be available but isn't (e.g., on my machine, `hdmi` is supported by the hardware, but there isn't anything connected to the HDMI ports) I get `alsa audio output error: cannot open ALSA device "hdmi": No such file or directory`. Can anything else play to that output? – derobert May 11 '15 at 20:51
Of course is connected,with other players i have no problem,for example mplayer – elbarna May 11 '15 at 21:43
@elbarna and what audio output are you using with `mplayer`? `-ao alsa:device=front` or something else? – derobert May 11 '15 at 21:49
yes,and work fine alsa:device=default,now i see the problem is not on vlc,but on cvlc only! – elbarna May 11 '15 at 21:53
Solution found: was a bug of old vlc,updated to latest vlc all works Thanks for help – elbarna May 11 '15 at 22:57

CVLC: alsa name?

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