Date: Thu, 13 Oct 2011 22:38:45 +0000 From: Alexander Best <arundel@freebsd.org> To: Polytropon <freebsd@edvax.de> Cc: FreeBSD <freebsd-questions@freebsd.org> Subject: Re: Can't access a music CD Message-ID: <20111013223845.GA28792@freebsd.org> In-Reply-To: <20111014002726.b16c9a5a.freebsd@edvax.de> References: <4E92BF3C.8080807@centurytel.net> <20111010104450.GA28895@orange.esperance-linux.co.uk> <4E9616FD.5080404@centurytel.net> <447h49yed0.fsf@lowell-desk.lan> <4E9627A6.8000907@centurytel.net> <44vcrtohej.fsf@lowell-desk.lan> <20111013162524.GA75476@freebsd.org> <20111013202456.3b59d88c.freebsd@edvax.de> <20111013220329.GA22983@freebsd.org> <20111014002726.b16c9a5a.freebsd@edvax.de>
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On Fri Oct 14 11, Polytropon wrote: > On Thu, 13 Oct 2011 22:03:29 +0000, Alexander Best wrote: > > On Thu Oct 13 11, Polytropon wrote: > > > On Thu, 13 Oct 2011 16:25:24 +0000, Alexander Best wrote: > > > > ano ther thought might be to implement an audio cd filesystem, so one could do > > > > 'mount -o audiocdfs /dev/cd0 /media/cd' and then all tracks appear as RAW pcm > > > > audio files. maybe fuse comes with something like this? > > > > > > What about /dev/acd0t[01,02,03,...] - aren't those supposed > > > to represent the individual audio tracks that could then be > > > interpreted as what they basically are, raw pcm (of cd-audio > > > specification)? > > > > i inserted an audio cd and they didn't turn up. i guess ATA_CAM doesn't support > > individual nodes for tracks. > > When using the (now default) CAM methods (ATAPICAM), I think > this is true. > > Example with a regular music CD: > > % cdcontrol info > Starting track = 1, ending track = 19, TOC size = 162 bytes > track start duration block length type > ------------------------------------------------- > 1 0:02.00 2:05.01 0 9376 audio > 2 2:07.01 1:45.53 9376 7928 audio > 3 3:52.54 2:37.49 17304 11824 audio > 4 6:30.28 1:52.00 29128 8400 audio > 5 8:22.28 2:08.29 37528 9629 audio > 6 10:30.57 2:23.01 47157 10726 audio > 7 12:53.58 4:01.01 57883 18076 audio > 8 16:54.59 3:12.37 75959 14437 audio > 9 20:07.21 2:09.00 90396 9675 audio > 10 22:16.21 4:19.67 100071 19492 audio > 11 26:36.13 3:28.00 119563 15600 audio > 12 30:04.13 3:48.73 135163 17173 audio > 13 33:53.11 3:51.38 152336 17363 audio > 14 37:44.49 1:27.72 169699 6597 audio > 15 39:12.46 2:15.15 176296 10140 audio > 16 41:27.61 2:35.01 186436 11626 audio > 17 44:02.62 2:11.00 198062 9825 audio > 18 46:13.62 2:37.01 207887 11776 audio > 19 48:50.63 2:48.01 219663 12601 audio > 170 51:38.64 - 232264 - - cdcontrol> info Starting track = 1, ending track = 9, TOC size = 82 bytes track start duration block length type ------------------------------------------------- 1 0:02.00 5:58.35 0 26885 audio 2 6:00.35 5:06.06 26885 22956 audio 3 11:06.41 5:40.57 49841 25557 audio 4 16:47.23 5:52.37 75398 26437 audio 5 22:39.60 4:14.09 101835 19059 audio 6 26:53.69 5:16.25 120894 23725 audio 7 32:10.19 3:14.54 144619 14604 audio 8 35:24.73 6:24.15 159223 28815 audio 9 41:49.13 6:16.51 188038 28251 audio 170 48:05.64 - 216289 - - > > % ls /dev/acd0* > /dev/acd0 /dev/acd0t04 /dev/acd0t08 /dev/acd0t12 /dev/acd0t16 > /dev/acd0t01 /dev/acd0t05 /dev/acd0t09 /dev/acd0t13 /dev/acd0t17 > /dev/acd0t02 /dev/acd0t06 /dev/acd0t10 /dev/acd0t14 /dev/acd0t18 > /dev/acd0t03 /dev/acd0t07 /dev/acd0t11 /dev/acd0t15 /dev/acd0t19 otaku% ls|grep cd cd0 cdrom > > % ls /dev/cd0* > /dev/cd0 > > Maybe obtaining a TOC listing of the CD is required to make the > track files appear? However, they are only present for the ATAPI > based access (acd0), not for the "SCSI" CAM based one (cd0). > > > > > -- > Polytropon > Magdeburg, Germany > Happy FreeBSD user since 4.0 > Andra moi ennepe, Mousa, ...
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