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Groups > linux.debian.user > #182850

Re: mplayer won't play audio CD

From "Thomas Schmitt" <scdbackup@gmx.net>
Newsgroups linux.debian.user
Subject Re: mplayer won't play audio CD
Date 2017-06-30 12:40 +0200
Message-ID <tY1vb-4jV-5@gated-at.bofh.it> (permalink)
References <tY1lw-4fP-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,

Curt wrote:
>  mplayer -cdrom-device /dev/hdb cdda://1
> or wherever the device exists on your machine.

Unless on very old systems, i'd expect /dev/sr0, /dev/sr1, ...


> Maybe there's no audio cable between the cd drive and the sound card. 

I doubt that mplayer would use the PLAY AUDIO command to let the drive
send an analog signal to the sound card. I rather assume it uses READ CD
to get the 16 bit digital audio data and then processes them like other
input.
So no audio cable from drive to sound card would be needed.


Brian wrote:
> It is worth noting that local access to the /dev/sr* device does
> not depend on being a member of the cdrom group, Using 'ls -l':
>  brw-rw----+ root cdrom 11, 0 June 30 11:15 /dev/sr0
> The "+" is a result of 70-uaccess.rules in /lib/udev/rules.d. It
> indicates an Access Control List (ACL).

... which can be inquired by

  $ getfacl /dev/sr0
  ...
  user:thomas:rw-
  ...

So my desktop user got an extra permission to read and write, regardless
of group membership or "others" permission.


Have a nice day :)

Thomas

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Thread

mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-06-29 23:00 +0200
  Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-06-30 08:00 +0200
    Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-06-30 09:30 +0200
    Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-06-30 12:30 +0200
      Re: mplayer won't play audio CD "Thomas Schmitt" <scdbackup@gmx.net> - 2017-06-30 12:40 +0200
        Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-06-30 13:30 +0200
          Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-06-30 18:00 +0200
            Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-01 02:20 +0200
              Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-07-01 12:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-01 14:00 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-01 14:20 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-01 15:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-01 15:40 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-01 16:00 +0200
                Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-01 16:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-01 17:10 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-01 17:40 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 00:40 +0200
                Re: mplayer won't play audio CD David Wright <deblis@lionunicorn.co.uk> - 2017-07-01 17:50 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-01 18:10 +0200
                Re: mplayer won't play audio CD David Wright <deblis@lionunicorn.co.uk> - 2017-07-01 18:50 +0200
                Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-07-01 19:50 +0200
                Re: mplayer won't play audio CD "Thomas Schmitt" <scdbackup@gmx.net> - 2017-07-01 20:50 +0200
                Re: mplayer won't play audio CD David Wright <deblis@lionunicorn.co.uk> - 2017-07-01 23:50 +0200
                Re: Einstellungen in Kontact "Thomas Schmitt" <scdbackup@gmx.net> - 2017-07-06 00:00 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 01:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 01:30 +0200
                Re: mplayer won't play audio CD David Wright <deblis@lionunicorn.co.uk> - 2017-07-02 02:00 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 03:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 03:40 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-02 11:40 +0200
                Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-07-02 13:30 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 16:20 +0200
                Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-07-02 17:10 +0200
                Re: mplayer won't play audio CD Brian <ad44@cityscape.co.uk> - 2017-07-02 18:20 +0200
                Re: mplayer won't play audio CD Rodolfo Medina <rodolfo.medina@gmail.com> - 2017-07-02 19:40 +0200
        Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-06-30 13:30 +0200
  Re: mplayer won't play audio CD Curt <curty@free.fr> - 2017-06-30 11:30 +0200
    Re: mplayer won't play audio CD Wilko Fokken <wfokken@web.de> - 2017-07-07 22:50 +0200
      Re: mplayer won't play audio CD Greg Wooledge <wooledg@eeg.ccf.org> - 2017-07-07 23:20 +0200
      Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-08 04:40 +0200
        Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-08 09:10 +0200
          Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-08 12:10 +0200
            Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-08 13:10 +0200
              Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-08 13:40 +0200
                Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-08 15:20 +0200
                Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-08 16:20 +0200
                Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-08 19:40 +0200
                Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-10 03:50 +0200
        Re: mplayer won't play audio CD Wilko Fokken <wfokken@web.de> - 2017-07-08 15:00 +0200
          Re: mplayer won't play audio CD Wellington Terumi Uemura <wellingtonuemura@gmail.com> - 2017-07-08 16:30 +0200
            Re: mplayer won't play audio CD deloptes <deloptes@gmail.com> - 2017-07-08 19:50 +0200

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