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New API call burn_disc_get_leadin_text()

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This commit is contained in:
Thomas Schmitt
2011-12-02 17:15:14 +00:00
parent 56c02fa394
commit 1d5ee82c16
6 changed files with 149 additions and 1 deletions
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72
libburn/mmc.c
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@ -174,6 +174,7 @@ static unsigned char MMC_GET_MSINFO[] =
static unsigned char MMC_GET_TOC[] = { 0x43, 2, 2, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_TOC_FMT0[] = { 0x43, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_ATIP[] = { 0x43, 2, 4, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_GET_LEADTEXT[] = { 0x43, 2, 5, 0, 0, 0, 0, 4, 0, 0 };
static unsigned char MMC_GET_DISC_INFO[] =
{ 0x51, 0, 0, 0, 0, 0, 0, 16, 0, 0 };
static unsigned char MMC_READ_CD[] = { 0xBE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
@ -2028,6 +2029,77 @@ void mmc_read_disc_info(struct burn_drive *d)
}
/* @param flag bit= do not allocate text_packs
*/
static int mmc_get_leadin_text_al(struct burn_drive *d,
unsigned char **text_packs, int *alloc_len,
int flag)
{
struct buffer *buf = NULL;
struct command *c = NULL;
unsigned char *data;
int ret, data_length;
*text_packs = NULL;
BURN_ALLOC_MEM(buf, struct buffer, 1);
BURN_ALLOC_MEM(c, struct command, 1);
scsi_init_command(c, MMC_GET_LEADTEXT, sizeof(MMC_GET_LEADTEXT));
c->dxfer_len = *alloc_len;
c->opcode[7]= (c->dxfer_len >> 8) & 0xff;
c->opcode[8]= c->dxfer_len & 0xff;
c->retry = 1;
c->page = buf;
c->page->bytes = 0;
c->page->sectors = 0;
c->dir = FROM_DRIVE;
d->issue_command(d, c);
if (c->error)
{ret = 0; goto ex;}
data = c->page->data;
data_length = (data[0] << 8) + data[1];
*alloc_len = data_length + 2;
if (*alloc_len >= 22 && !(flag & 1)) {
BURN_ALLOC_MEM(*text_packs, unsigned char, *alloc_len - 4);
memcpy(*text_packs, data + 4, *alloc_len - 4);
}
ret = 1;
ex:;
BURN_FREE_MEM(c);
BURN_FREE_MEM(buf);
return ret;
}
/* ts B11201 */
/* Read the CD-TEXT data from the Lead-in of an Audio CD
*/
int mmc_get_leadin_text(struct burn_drive *d,
unsigned char **text_packs, int *num_packs, int flag)
{
int alloc_len = 4, ret;
*num_packs = 0;
if (mmc_function_spy(d, "mmc_get_leadin_text") <= 0)
return -1;
ret = mmc_get_leadin_text_al(d, text_packs, &alloc_len, 1);
if (ret <= 0 || alloc_len < 22)
return (ret > 0 ? 0 : ret);
ret = mmc_get_leadin_text_al(d, text_packs, &alloc_len, 0);
if (ret <= 0 || alloc_len < 22) {
if (*text_packs != NULL)
free(*text_packs);
*text_packs = NULL;
return (ret > 0 ? 0 : ret);
}
*num_packs = (alloc_len - 4) / 18;
return ret;
}
void mmc_read_atip(struct burn_drive *d)
{
struct buffer *buf = NULL;