Re: [Libcdio-devel] OpenBSD vs libcdio vs Audacious

[Rocky Bernstein]

On Sat, Jan 26, 2019 at 11:18 AM Edd Barrett <address@hidden> wrote:

> Hi,
>
> I've found some time to look into the audacious issues.
>
> It turns out the situation with audacious isn't as bad as I first
> thought. I thought it was erroneously starting the CD on a different
> track each time, but this turned out to be the shuffle feature being
> enabled! Doh!
>
> Nonetheless, there are some errors being printed on the console. For
> each error message in the driver, I've added printing __func__ so we can
> see what causes it. I've also added a load of other debugging messages.
>
> If I click services->play cd:
> ---8<---
> Checking /dev/rcd0c for cdrom...
> mmc_run_cmd
>                 CDROM sensed: TEAC     DW-224E-C        1.8B
>
> mmc_get_dvd_struct_physical
> mmc_get_dvd_struct_physical_private
> about to do mmc command in mmc_get_dvd_struct_physical_private
> run_scsi_cmd_netbsd: SCIOCCOMMAND cmd 0xad sts 3
> finished mmc command in mmc_get_dvd_struct_physical_private
> errored mmc command in mmc_get_dvd_struct_physical_private
>         Setting read block size at 8 sectors (18816 bytes).
> Verifying drive can read CDDA...
> cdio_read_audio_sectors
>         Expected command set reads OK.
> ERROR cdaudio-ng.cc:502 [scan_cd]: Cannot set drive speed.
> cdio_read_audio_sectors
> read_audio_sectors_netbsd: SCIOCCOMMAND1 cmd 0xbe sts 0 lsn 0 nblocks 37
> cdio_read_audio_sectors
> cdio_read_audio_sectors
> cdio_read_audio_sectors
> cdio_read_audio_sectors
> cdio_read_audio_sectors
> cdio_read_audio_sectors
> ...
> --->8---
>
> And the CD is playing. Errors here:
>
>  * Looks like the player might be checking if the disc is a DVD and we get
> an
>    error. Might be OK?
>

I will venture a guess that checking for a DVD is part of some sort of
overall discovery of what is in the drive.


>
>  * Fetching the first sector of a track always makes an SCSI error. I can
> see
>    this when I skip tracks too.
>
>    CD is playing, then we skip track, wait a moment, and skip again:
>
>         ---8<---
>         ...
>         cdio_read_audio_sectors
>         cdio_read_audio_sectors
>         read_audio_sectors_netbsd: SCIOCCOMMAND1 cmd 0xbe sts 0 lsn 13947
> nblocks 37
>         cdio_read_audio_sectors
>         cdio_read_audio_sectors
>         ...
>         cdio_read_audio_sectors
>         cdio_read_audio_sectors
>         read_audio_sectors_netbsd: SCIOCCOMMAND1 cmd 0xbe sts 0 lsn 25812
> nblocks 37
>         cdio_read_audio_sectors
>         cdio_read_audio_sectors
>         ...
>         --->8---
>
>
> Another thing I notice is when I stop playback, the player seems to be
> checking
> if the disc is a DVD once a second. Weird, but maybe OK.
>
> ---8<---
> mmc_get_dvd_struct_physical
> mmc_get_dvd_struct_physical_private
> about to do mmc command in mmc_get_dvd_struct_physical_private
> run_scsi_cmd_netbsd: SCIOCCOMMAND cmd 0xad sts 3
> finished mmc command in mmc_get_dvd_struct_physical_private
> errored mmc command in mmc_get_dvd_struct_physical_private
> mmc_get_dvd_struct_physical
> mmc_get_dvd_struct_physical_private
> about to do mmc command in mmc_get_dvd_struct_physical_private
> run_scsi_cmd_netbsd: SCIOCCOMMAND cmd 0xad sts 3
> finished mmc command in mmc_get_dvd_struct_physical_private
> errored mmc command in mmc_get_dvd_struct_physical_private
> mmc_get_dvd_struct_physical
> mmc_get_dvd_struct_physical_private
> about to do mmc command in mmc_get_dvd_struct_physical_private
> run_scsi_cmd_netbsd: SCIOCCOMMAND cmd 0xad sts 3
> finished mmc command in mmc_get_dvd_struct_physical_private
> errored mmc command in mmc_get_dvd_struct_physical_private
> --->8---
>
> Other than these error messages, cd playback seems fine, even with CDs with
> non-one start tracks.
>
> I'd be interested to hear what you guys think, if anything, about these
> error
> messages. Maybe some of the SCSI details mean something to Thomas, for
> example?
>
> Next I'll look at mpv (which has deeper issues I think).
>
> --
> Best Regards
> Edd Barrett
>
> http://www.theunixzoo.co.uk
>
>