/* Note: positions file pointer at end of file */
int mxf_rewrite_partitions(MXFFile *mxfFile, MXFFilePartitions *partitions)
{
MXFListIterator iter;
mxf_initialise_list_iter(&iter, partitions);
while (mxf_next_list_iter_element(&iter))
{
MXFPartition *partition = (MXFPartition*)mxf_get_iter_element(&iter);
CHK_ORET(mxf_file_seek(mxfFile, (int64_t)partition->thisPartition + mxf_get_runin_len(mxfFile), SEEK_SET));
CHK_ORET(mxf_write_partition(mxfFile, partition));
}
CHK_ORET(mxf_file_seek(mxfFile, 0, SEEK_END));
return 1;
}
int mxf_write_partition(MXFFile *mxfFile, MXFPartition *partition)
{
uint32_t essenceContainerLen = (uint32_t)mxf_get_list_length(&partition->essenceContainers);
uint64_t packLen = 88 + mxfUL_extlen * essenceContainerLen;
int64_t filePos;
MXFListIterator iter;
CHK_ORET((filePos = mxf_file_tell(mxfFile)) >= 0);
partition->thisPartition = filePos - mxf_get_runin_len(mxfFile);
if (mxf_is_footer_partition_pack(&partition->key))
{
partition->footerPartition = partition->thisPartition;
}
CHK_ORET(mxf_write_kl(mxfFile, &partition->key, packLen));
CHK_ORET(mxf_write_uint16(mxfFile, partition->majorVersion));
CHK_ORET(mxf_write_uint16(mxfFile, partition->minorVersion));
CHK_ORET(mxf_write_uint32(mxfFile, partition->kagSize));
CHK_ORET(mxf_write_uint64(mxfFile, partition->thisPartition));
CHK_ORET(mxf_write_uint64(mxfFile, partition->previousPartition));
CHK_ORET(mxf_write_uint64(mxfFile, partition->footerPartition));
CHK_ORET(mxf_write_uint64(mxfFile, partition->headerByteCount));
CHK_ORET(mxf_write_uint64(mxfFile, partition->indexByteCount));
CHK_ORET(mxf_write_uint32(mxfFile, partition->indexSID));
CHK_ORET(mxf_write_uint64(mxfFile, partition->bodyOffset));
CHK_ORET(mxf_write_uint32(mxfFile, partition->bodySID));
CHK_ORET(mxf_write_ul(mxfFile, &partition->operationalPattern));
CHK_ORET(mxf_write_batch_header(mxfFile, essenceContainerLen, mxfUL_extlen));
mxf_initialise_list_iter(&iter, &partition->essenceContainers);
while (mxf_next_list_iter_element(&iter))
{
CHK_ORET(mxf_write_ul(mxfFile, (mxfUL*)mxf_get_iter_element(&iter)));
}
return 1;
}
int archive_mxf_read_footer_metadata(const char* filename, MXFDataModel* dataModel, MXFHeaderMetadata** headerMetadata)
{
MXFPageFile* mxfPageFile = NULL;
MXFFile* mxfFile = NULL;
MXFRIP rip;
MXFRIPEntry* lastRIPEntry = NULL;
mxfKey key;
uint8_t llen;
uint64_t len;
MXFPartition* footerPartition = NULL;
int result = 0;
MXFHeaderMetadata* newHeaderMetadata = NULL;
memset(&rip, 0, sizeof(rip));
/* open MXF file */
if (strstr(filename, "%d") != NULL)
{
CHK_OFAIL_NOMSG(mxf_page_file_open_read(filename, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
}
else
{
CHK_OFAIL_NOMSG(mxf_disk_file_open_read(filename, &mxfFile));
}
/* read the RIP */
CHK_OFAIL_NOMSG(mxf_read_rip(mxfFile, &rip));
/* read footer partition pack */
CHK_OFAIL_NOMSG((lastRIPEntry = (MXFRIPEntry*)mxf_get_last_list_element(&rip.entries)) != NULL);
CHK_OFAIL_NOMSG(mxf_file_seek(mxfFile, mxf_get_runin_len(mxfFile) + lastRIPEntry->thisPartition, SEEK_SET));
CHK_OFAIL_NOMSG(mxf_read_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL_NOMSG(mxf_is_partition_pack(&key));
result = 2; /* the file is complete and the presence, or not, of the header metadata will not change */
*headerMetadata = NULL;
CHK_OFAIL_NOMSG(mxf_is_footer_partition_pack(&key));
CHK_OFAIL_NOMSG(mxf_read_partition(mxfFile, &key, &footerPartition));
/* read the header metadata */
CHK_OFAIL_NOMSG(mxf_read_next_nonfiller_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL_NOMSG(mxf_is_header_metadata(&key));
CHK_OFAIL_NOMSG(mxf_create_header_metadata(&newHeaderMetadata, dataModel));
CHK_OFAIL_NOMSG(mxf_read_header_metadata(mxfFile, newHeaderMetadata,
footerPartition->headerByteCount, &key, llen, len));
mxf_free_partition(&footerPartition);
mxf_clear_rip(&rip);
mxf_file_close(&mxfFile);
*headerMetadata = newHeaderMetadata;
newHeaderMetadata = NULL;
return 1;
fail:
mxf_free_header_metadata(&newHeaderMetadata);
mxf_free_partition(&footerPartition);
mxf_clear_rip(&rip);
mxf_file_close(&mxfFile);
return result;
}
static int get_file_partitions(MXFFile *mxfFile, MXFPartition *headerPartition, MXFList *partitions)
{
mxfKey key;
uint8_t llen;
uint64_t len;
MXFPartition *partition = NULL;
MXFPartition *partitionRef;
uint64_t thisPartition;
MXFRIP rip;
MXFRIPEntry *ripEntry;
MXFListIterator iter;
mxf_initialise_list(partitions, free_partition_in_list);
memset(&rip, 0, sizeof(MXFRIP));
/* use the RIP if there is one */
if (mxf_read_rip(mxfFile, &rip))
{
mxf_initialise_list_iter(&iter, &rip.entries);
while (mxf_next_list_iter_element(&iter))
{
ripEntry = (MXFRIPEntry*)mxf_get_iter_element(&iter);
/* seek to partition and read and add to list */
CHK_OFAIL(mxf_file_seek(mxfFile, mxf_get_runin_len(mxfFile) + ripEntry->thisPartition,
SEEK_SET));
CHK_OFAIL(mxf_read_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_is_partition_pack(&key));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &partition));
CHK_OFAIL(mxf_append_list_element(partitions, partition));
partition = NULL; /* owned by list */
}
}
/* start from footer partition and index back to the header partition */
else
{
if (headerPartition->footerPartition == 0)
{
/* no footer partition or at unknown position, so we only index the header partition */
goto fail;
}
thisPartition = headerPartition->footerPartition;
do
{
/* seek to partition and read and add to list */
CHK_OFAIL(mxf_file_seek(mxfFile, mxf_get_runin_len(mxfFile) + thisPartition, SEEK_SET));
CHK_OFAIL(mxf_read_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_is_partition_pack(&key));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &partition));
CHK_OFAIL(mxf_prepend_list_element(partitions, partition));
partitionRef = partition;
partition = NULL; /* owned by list */
thisPartition = partitionRef->previousPartition;
}
while (partitionRef->thisPartition != partitionRef->previousPartition);
}
mxf_clear_rip(&rip);
return 1;
fail:
/* if something failed then just add the header partition
Note: some Omneon files had references to a footer partition which was not
actually present in the file */
mxf_clear_list(partitions);
mxf_free_partition(&partition);
mxf_clear_rip(&rip);
/* create copy of header partition pack */
CHK_ORET(mxf_create_from_partition(headerPartition, &partition));
partition->key = headerPartition->key;
partition->majorVersion = headerPartition->majorVersion;
partition->minorVersion = headerPartition->minorVersion;
partition->kagSize = headerPartition->kagSize;
partition->thisPartition = headerPartition->thisPartition;
partition->previousPartition = headerPartition->previousPartition;
partition->footerPartition = headerPartition->footerPartition;
partition->headerByteCount = headerPartition->headerByteCount;
partition->indexByteCount = headerPartition->indexByteCount;
partition->indexSID = headerPartition->indexSID;
partition->bodyOffset = headerPartition->bodyOffset;
partition->bodySID = headerPartition->bodySID;
/* add partition to list */
if (!mxf_append_list_element(partitions, partition))
{
mxf_free_partition(&partition);
mxf_log_error("Failed to append header partition to list" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
return 0;
}
return 1;
}
