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Trying to find out whether READ CAPACITY on CD media includes 2 TAO end blocks

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Thomas Schmitt
2016-03-08 07:33:45 +00:00
parent df1483c78d
commit 69d12929e3
6 changed files with 86 additions and 7 deletions
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8
libburn/drive.c
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@@ -419,6 +419,7 @@ int burn_drive_grab_stdio(struct burn_drive *d, int flag)
/* despite its name : last valid address, not size */
d->media_read_capacity =
read_size / 2048 - !(read_size % 2048);
d->mr_capacity_trusted = 1;
if ((stat_ret == -1 || is_rdwr) && d->devname[0]) {
ret = burn_os_stdio_capacity(d->devname, 0, &size);
if (ret > 0)
@@ -1782,10 +1783,12 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
strcpy(d->current_profile_text,"stdio file");
d->current_is_cd_profile = 0;
d->current_is_supported_profile = 1;
if (read_size >= 0)
if (read_size >= 0) {
/* despite its name : last valid address, not size */
d->media_read_capacity =
read_size / 2048 - !(read_size % 2048);
d->mr_capacity_trusted = 1;
}
burn_drive_set_media_capacity_remaining(d, size);
} else
d->current_profile = 0; /* Drives return this if empty */
@@ -3322,7 +3325,8 @@ int burn_drive_set_media_capacity_remaining(struct burn_drive *d, off_t value)
/* ts A81215 : API */
int burn_get_read_capacity(struct burn_drive *d, int *capacity, int flag)
{
*capacity = d->media_read_capacity + 1;
*capacity = d->media_read_capacity +
(d->media_read_capacity != 0x7fffffff);
return (d->media_read_capacity != 0x7fffffff);
}