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Obtaining more accurate track sizes for CD with pre-gap

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This commit is contained in:
Thomas Schmitt 2012-01-11 12:25:06 +00:00
parent 5cd7b09d5c
commit 66eba145d3
5 changed files with 39 additions and 5 deletions
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2
cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2012.01.11.122158"
#define Cdrskin_timestamP "2012.01.11.122442"

2
libburn/mmc.c
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@ -1587,7 +1587,7 @@ static int mmc_read_toc_al(struct burn_drive *d, int *alloc_len)
}
/* A80808 */
burn_disc_cd_toc_extensions(d->disc, 0);
burn_disc_cd_toc_extensions(d, 0);
ret = 1;
ex:;

6
libburn/mmc.h
View File

@ -79,6 +79,12 @@ int mmc_compose_mode_page_5(struct burn_drive *d,
/* ts A70201 */
int mmc_four_char_to_int(unsigned char *data);
/* ts A70201 :
Common track info fetcher for mmc_get_nwa() and mmc_fake_toc()
*/
int mmc_read_track_info(struct burn_drive *d, int trackno, struct buffer *buf,
int alloc_len);
/* ts A70812 : return 0 = ok , return BE_CANCELLED = error occured */
int mmc_read_10(struct burn_drive *d, int start, int amount,
struct buffer *buf);

32
libburn/structure.c
View File

@ -27,6 +27,8 @@
#include "debug.h"
#include "init.h"
#include "util.h"
#include "transport.h"
#include "mmc.h"
#include "libdax_msgs.h"
extern struct libdax_msgs *libdax_messenger;
@ -690,14 +692,18 @@ int burn_session_get_hidefirst(struct burn_session *session)
/* ts A80808 : Enhance CD toc to DVD toc */
int burn_disc_cd_toc_extensions(struct burn_disc *d, int flag)
int burn_disc_cd_toc_extensions(struct burn_drive *drive, int flag)
{
int sidx= 0, tidx= 0, ret;
int sidx= 0, tidx= 0, ret, track_offset, alloc_len = 34;
struct burn_toc_entry *entry, *prev_entry= NULL;
struct burn_disc *d;
/* ts A81126 : ticket 146 : There was a SIGSEGV in here */
char *msg_data = NULL, *msg;
struct buffer *buf = NULL;
d = drive->disc;
BURN_ALLOC_MEM(msg_data, char, 321);
BURN_ALLOC_MEM(buf, struct buffer, 1);
strcpy(msg_data,
"Damaged CD table-of-content detected and truncated.");
strcat(msg_data, " In burn_disc_cd_toc_extensions: ");
@ -706,6 +712,14 @@ int burn_disc_cd_toc_extensions(struct burn_disc *d, int flag)
strcpy(msg, "d->session == NULL");
goto failure;
}
if (d->sessions <= 0) {
ret = 1;
goto ex;
}
track_offset = burn_session_get_start_tno(d->session[0], 0);
if (track_offset <= 0)
track_offset = 1;
for (sidx = 0; sidx < d->sessions; sidx++) {
if (d->session[sidx] == NULL) {
sprintf(msg, "d->session[%d of %d] == NULL",
@ -749,6 +763,19 @@ int burn_disc_cd_toc_extensions(struct burn_disc *d, int flag)
prev_entry->track_blocks =
entry->start_lba
- prev_entry->start_lba;
/* The drive might know size restrictions
like pre-gaps
*/
ret = mmc_read_track_info(drive,
tidx - 1 + track_offset, buf,
alloc_len);
if (ret > 0) {
ret = mmc_four_char_to_int(
buf->data + 24);
if (ret < prev_entry->track_blocks)
prev_entry->track_blocks = ret;
}
prev_entry->extensions_valid |= 1;
}
if (tidx == d->session[sidx]->tracks) {
@ -767,6 +794,7 @@ failure:
d->sessions= sidx;
ret = 0;
ex:;
BURN_FREE_MEM(buf);
BURN_FREE_MEM(msg_data);
return ret;
}

2
libburn/structure.h
View File

@ -164,7 +164,7 @@ off_t burn_track_get_default_size(struct burn_track *t);
/* ts A80808 : Enhance CD toc to DVD toc */
int burn_disc_cd_toc_extensions(struct burn_disc *d, int flag);
int burn_disc_cd_toc_extensions(struct burn_drive *drive, int flag);
/* ts B11206 */