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Avoided to read third sixpack of manufacturer bytes with DVD-R media

This commit is contained in:
Thomas Schmitt 2009-09-06 11:20:18 +00:00
parent 5e4c1cf967
commit 1d6c97c79f
3 changed files with 36 additions and 15 deletions
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2
cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2009.09.06.092654"
#define Cdrskin_timestamP "2009.09.06.112121"

5
doc/mediainfo.txt
View File

@ -57,7 +57,9 @@ type specific information if the drive supports the particular Format Code.
With DVD+ and BD there is a 8 character Manufacturer ID, a 3 character Media
Id and a single character Media Revision.
With DVD-R and DVD-RW there is a Manufacturer ID of up to 18 characters.
With DVD-R, ECMA-279 promises a Manufacturer ID of up to 18 characters.
With DVD-RW, ECMA-338 gives up the meaning of the last six-pack.
Both, DVD-RW RITEKW01 and DVD-R RITEKF1 bear unprintable characters there.
With DVD-ROM and DVD-RAM there seem to be no such ids.
@ -143,6 +145,7 @@ Format code 0Eh "Pre-recorded Information in Lead-in"
ECMA-338 (DVD-RW) says the same in:
29.3.3.1.1 Format1 RMD Field0
Table 24 - Copy of Pre-pit Information
Manufacturer ID at bytes 17 to 22, 25 to 30, but not at 33
6.23.3.2.14 Format Code 0Eh: Pre-recorded Information in Lead-in
Table 423 shows 4 byte header:
MSB,LSB of Disc Structure Data Length

40
libburn/mmc.c
View File

@ -3939,6 +3939,10 @@ int mmc_read_disc_structure(struct burn_drive *d,
}
/* ts A90903 */
/*
@param flag bit0= set bit1 in flag for burn_util_make_printable_word
and do not append media revision
*/
static int mmc_set_product_id(char *reply,
int manuf_idx, int type_idx, int rev_idx,
char **product_id, char **media_code1, char **media_code2, int flag)
@ -3952,15 +3956,20 @@ static int mmc_set_product_id(char *reply,
*media_code1 == NULL || *media_code2 == NULL)
return -1;
sprintf(*media_code1, "%.8s", reply + manuf_idx);
ret = burn_util_make_printable_word(media_code1, 1);
ret = burn_util_make_printable_word(media_code1,
1 | ((flag & 1) << 1));
if (ret <= 0)
return -1;
sprintf(*media_code2, "%.3sxxxx", reply + type_idx);
ret = burn_util_make_printable_word(media_code2, 1);
sprintf(*media_code2, "%.3s%s", reply + type_idx,
(flag & 1) ? "" : "xxxx");
ret = burn_util_make_printable_word(media_code2,
1 | ((flag & 1) << 1));
if (ret <= 0)
return -1;
if (!(flag & 1)) {
sprintf(*media_code2 + strlen(*media_code2) - 4, "/%d",
(int) ((unsigned char *) reply)[rev_idx]);
}
sprintf(*product_id, "%s/%s", *media_code1, *media_code2);
return 1;
}
@ -3970,6 +3979,9 @@ static int mmc_set_product_id(char *reply,
/* MMC backend of API call burn_get_media_product_id()
See also doc/mediainfo.txt
@param flag Bitfield for control purposes
bit0= do not escape " _/" (not suitable for
burn_guess_manufacturer())
*/
int mmc_get_media_product_id(struct burn_drive *d,
char **product_id, char **media_code1, char **media_code2,
@ -4018,8 +4030,11 @@ int mmc_get_media_product_id(struct burn_drive *d,
&reply_len, 0);
if (ret <= 0)
goto ex;
if (reply[16] != 3 || reply[24] != 4 ||
(reply_len > 38 && reply[32] != 5)) {
/* ECMA-279 for DVD-R promises a third sixpack in field 5,
but ECMA-338 for DVD-RW defines a different meaning.
DVD-R and DVD-RW bear unprintable characters in there.
*/
if (reply[16] != 3 || reply[24] != 4) {
ret = 0;
goto ex;
}
@ -4031,15 +4046,15 @@ int mmc_get_media_product_id(struct burn_drive *d,
}
memcpy(*media_code1, reply + 17, 6);
memcpy(*media_code1 + 6, reply + 25, 6);
if (reply_len > 38)
memcpy(*media_code1 + 12, reply + 33, 6);
/* Clean out 0 bytes */
wpt = *media_code1;
for (i = 0; i < 18; i++)
if ((*media_code1)[i])
*(wpt++) = (*media_code1)[i];
*wpt = 0;
ret = burn_util_make_printable_word(media_code1, 1);
ret = burn_util_make_printable_word(media_code1,
1 | ((flag & 1) << 1));
if (ret <= 0)
goto ex;
*product_id = strdup(*media_code1);
@ -4071,7 +4086,8 @@ int mmc_get_media_product_id(struct burn_drive *d,
} else {
/* Dig out manufacturer, media type and revision */
ret = mmc_set_product_id(reply, 19, 27, 28,
product_id, media_code1, media_code2, 0);
product_id, media_code1, media_code2,
flag & 1);
if (ret <= 0)
goto ex;
}
@ -4088,7 +4104,8 @@ int mmc_get_media_product_id(struct burn_drive *d,
}
/* Dig out manufacturer, media type and revision */
ret = mmc_set_product_id(reply, 100, 106, 111,
product_id, media_code1, media_code2, 0);
product_id, media_code1, media_code2,
flag & 1);
if (ret <= 0)
goto ex;
@ -4119,7 +4136,8 @@ int mmc_get_media_product_id(struct burn_drive *d,
/* DVD+ with no format 11h */
/* Get manufacturer and media type from bytes 19 and 27 */
ret = mmc_set_product_id(reply, 19, 27, 28, product_id,
media_code1, media_code2, 0);
media_code1, media_code2,
flag & 1);
if (*product_id == NULL) {
ret = 0;
goto ex;