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Beginning to create new API call burn_read_audio

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This commit is contained in:
Thomas Schmitt
2012-11-29 11:14:33 +00:00
parent c850f8c447
commit ebaf7baee6
12 changed files with 179 additions and 11 deletions
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109
libburn/trunk/libburn/read.c
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@ -159,6 +159,8 @@ drive, or only store a subset of the _opts structs in drives */
drive_lba);
/* >>> ts A61009 : ensure page.sectors >= 0 before calling */
/* >>> ts B21123 : Would now be d->read_cd() with
with sectype = 0 , mainch = 0xf8 */
d->r ead_sectors(d, drive_lba, page.sectors, o, &page);
printf("Read %d\n", page.sectors);
@ -538,6 +540,113 @@ ex:;
}
#ifdef Libburn_with_read_audiO
/* ts B21119 : API function*/
int burn_read_audio(struct burn_drive *d, int sector_no,
char data[], off_t data_size, off_t *data_count, int flag)
{
int alignment = 2352, start, upto, chunksize = 1, err, cpy_size, i;
int sose_mem = 0, ret;
char msg[81], *wpt;
struct buffer *buf = NULL, *buffer_mem = d->buffer;
BURN_ALLOC_MEM(buf, struct buffer, 1);
*data_count = 0;
sose_mem = d->silent_on_scsi_error;
if (d->released) {
libdax_msgs_submit(libdax_messenger,
d->global_index, 0x00020142,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
"Drive is not grabbed on random access read", 0, 0);
{ret = 0; goto ex;}
}
if (d->drive_role != 1) {
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020146,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
"Drive is a virtual placeholder (stdio-drive or null-drive)",
0, 0);
{ret = 0; goto ex;}
}
if ((data_size % alignment) != 0) {
sprintf(msg,
"Audio read size not properly aligned (%d bytes)",
alignment);
libdax_msgs_submit(libdax_messenger, d->global_index,
0x0002019d,
LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
msg, 0, 0);
{ret = 0; goto ex;}
}
if (d->busy != BURN_DRIVE_IDLE) {
libdax_msgs_submit(libdax_messenger,
d->global_index, 0x00020145,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
"Drive is busy on attempt to read audio", 0, 0);
{ret = 0; goto ex;}
}
d->busy = BURN_DRIVE_READING_SYNC;
d->buffer = buf;
start = sector_no;
upto = start + data_size / alignment;
wpt = data;
for (; start < upto; start += chunksize) {
chunksize = upto - start;
if (chunksize > (BUFFER_SIZE / alignment))
chunksize = (BUFFER_SIZE / alignment);
cpy_size = chunksize * alignment;
if (flag & 2)
d->silent_on_scsi_error = 1;
if (flag & 16) {
d->had_particular_error &= ~1;
if (!d->silent_on_scsi_error)
d->silent_on_scsi_error = 2;
}
err = d->read_cd(d, start, chunksize, 1, 0x10, NULL, d->buffer,
(flag & 8) >> 3);
if (flag & (2 | 16))
d->silent_on_scsi_error = sose_mem;
if (err == BE_CANCELLED) {
if ((flag & 16) && (d->had_particular_error & 1))
{ret = -3; goto ex;}
if(!(flag & 4))
for (i = 0; i < chunksize - 1; i++) {
if (flag & 2)
d->silent_on_scsi_error = 1;
err = d->read_cd(d, start + i, 1, 1, 0x10,
NULL, d->buffer, (flag & 8) >> 3);
if (flag & 2)
d->silent_on_scsi_error = sose_mem;
if (err == BE_CANCELLED)
break;
memcpy(wpt, d->buffer->data, alignment);
wpt += alignment;
*data_count += alignment;
}
ret = 0; goto ex;
}
memcpy(wpt, d->buffer->data, cpy_size);
wpt += cpy_size;
*data_count += cpy_size;
}
ret = 1;
ex:
BURN_FREE_MEM(buf);
d->buffer = buffer_mem;
d->busy = BURN_DRIVE_IDLE;
return ret;
}
#endif /* Libburn_with_read_audiO */
#ifdef Libburn_develop_quality_scaN
/* B21108 ts */