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New API call burn_offst_source_new()

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Thomas Schmitt
2010-09-22 17:51:26 +00:00
parent a6e948b6e6
commit b6e37e68e8
8 changed files with 234 additions and 5 deletions
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38
libburn/trunk/libburn/libburn.h
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@ -1311,9 +1311,10 @@ off_t burn_disc_available_space(struct burn_drive *d,
0xffff "stdio file"
Note: 0xffff is not a MMC profile but a libburn invention.
Read-only are the profiles
0x08 "CD-ROM", 0x10 "DVD-ROM",
0x08 "CD-ROM",
0x10 "DVD-ROM",
0x40 "BD-ROM",
For now read-only is BD-R profile (testers wanted)
Read-only for now is this BD-R profile (testers wanted)
0x42 "BD-R random recording"
@param d The drive where the media is inserted.
@param pno Profile Number. See also mmc5r03c.pdf, table 89
@ -1889,6 +1890,39 @@ int burn_os_free_buffer(void *buffer, size_t amount, int flag);
struct burn_source *burn_fd_source_new(int datafd, int subfd, off_t size);
/* ts B00922 */
/** Creates an offset source which shall provide a byte interval of a stream
to its consumer. It is supposed to be chain-linked with other offset
sources which serve neighboring consumers. The chronological sequence
of consumers and the sequence of offset sources must match. The intervals
of the sources must not overlap.
A chain of these burn_source objects may be used to feed multiple tracks
from one single stream of input bytes.
Each of the offset sources will skip the bytes up to its start address and
provide the prescribed number of bytes to the track. Skipping takes into
respect the bytes which have been processed by eventual predecessors in the
chain.
Important: It is not allowed to free an offset source before its successor
has ended its work. Best is to keep them all until all tracks
are done.
@param inp The burn_source object from which to read stream data
@param prev The eventual offset source object which shall read data from
inp before the new offset source will begin its own work.
This must either be a result of burn_offst_source_new() or
it must be NULL.
@param start The byte address where to start reading bytes for the
consumer. inp bytes may get skipped to reach this address.
@param size The number of bytes to be delivered to the consumer.
@param flag Bitfield for control purposes (unused yet, submit 0).
@return Pointer to a burn_source object, NULL indicates failure
@since 0.8.8
*/
struct burn_source *burn_offst_source_new(
struct burn_source *inp, struct burn_source *prev,
off_t start, off_t size, int flag);
/* ts A70930 */
/** Creates a fifo which acts as proxy for an already existing data source.
The fifo provides a ring buffer which shall smoothen the data stream