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Break out DVD detection. More verbose comments about the issues here.

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rocky
2005-02-07 04:16:19 +00:00
parent 10245d8901
commit 7bb03d5c93
2 changed files with 42 additions and 17 deletions
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38
lib/driver/_cdio_linux.c
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@@ -1,5 +1,5 @@
/*
$Id: _cdio_linux.c,v 1.23 2005/02/07 03:36:02 rocky Exp $
$Id: _cdio_linux.c,v 1.24 2005/02/07 04:16:19 rocky Exp $
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
Copyright (C) 2002, 2003, 2004, 2005 Rocky Bernstein <rocky@panix.com>
@@ -27,7 +27,7 @@
# include "config.h"
#endif
static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.23 2005/02/07 03:36:02 rocky Exp $";
static const char _rcsid[] = "$Id: _cdio_linux.c,v 1.24 2005/02/07 04:16:19 rocky Exp $";
#include <string.h>
@@ -462,14 +462,12 @@ eject_media_linux (void *p_user_data) {
}
/*!
Get disc type associated with the cd object.
Get disc type associated with cd object.
*/
static discmode_t
get_discmode_linux (void *p_user_data)
dvd_discmode_linux (_img_private_t *p_env)
{
_img_private_t *p_env = p_user_data;
discmode_t discmode = CDIO_DISC_MODE_NO_INFO;
discmode_t discmode=CDIO_DISC_MODE_NO_INFO;
/* See if this is a DVD. */
cdio_dvd_struct_t dvd; /* DVD READ STRUCT for layer 0. */
@@ -487,13 +485,32 @@ get_discmode_linux (void *p_user_data)
default: return CDIO_DISC_MODE_DVD_OTHER;
}
}
return discmode;
}
/*!
Get disc type associated with the cd object.
*/
static discmode_t
get_discmode_linux (void *p_user_data)
{
_img_private_t *p_env = p_user_data;
discmode_t discmode;
if (!p_env) return CDIO_DISC_MODE_ERROR;
/* Try DVD types first. See note below. */
discmode = dvd_discmode_linux(p_env);
if (CDIO_DISC_MODE_NO_INFO != discmode) return discmode;
/*
Justin B Ruggles <jruggle@earthlink.net> reports that the
GNU/Linux ioctl(.., CDROM_DISC_STATUS) does not return "CD DATA
Form 2" for SVCD's even though they are are form 2. There we
issue a SCSI MMC-2 FULL TOC command first to try get more
accurate information.
Form 2" for SVCD's even though they are are form 2. In
mmc_get_discmode we issue a SCSI MMC-2 TOC command first to
try get more accurate information. But we took care above *not*
to issue a FULL TOC on DVD media.
*/
discmode = mmc_get_discmode(p_env->gen.cdio);
if (CDIO_DISC_MODE_NO_INFO != discmode)
@@ -503,7 +520,6 @@ get_discmode_linux (void *p_user_data)
if (i_discmode < 0) return CDIO_DISC_MODE_ERROR;
/* FIXME Need to add getting DVD types. */
switch(i_discmode) {
case CDS_AUDIO:
return CDIO_DISC_MODE_CD_DA;