void mxf_update_partitions_in_memory(MXFFilePartitions *partitions)
{
MXFPartition *previousPartition;
MXFPartition *lastPartition;
MXFListIterator iter;
int haveFooter;
/* check if anything there to update */
if (mxf_get_list_length(partitions) == 0)
{
return;
}
/* update partition packs with previousPartition and footerPartition (if present) offsets */
lastPartition = (MXFPartition*)mxf_get_last_list_element(partitions);
haveFooter = mxf_is_footer_partition_pack(&lastPartition->key);
previousPartition = NULL;
mxf_initialise_list_iter(&iter, partitions);
while (mxf_next_list_iter_element(&iter))
{
MXFPartition *partition = (MXFPartition*)mxf_get_iter_element(&iter);
if (previousPartition != NULL)
{
partition->previousPartition = previousPartition->thisPartition;
}
if (haveFooter)
{
partition->footerPartition = lastPartition->thisPartition;
}
previousPartition = partition;
}
}
int mxf_write_rip(MXFFile *mxfFile, MXFFilePartitions *partitions)
{
uint32_t numPartitions;
uint64_t len;
uint8_t llen;
MXFListIterator iter;
numPartitions = (uint32_t)mxf_get_list_length(partitions);
len = (4 + 8) * numPartitions + 4;
CHK_ORET(mxf_write_k(mxfFile, &g_RandomIndexPack_key));
CHK_ORET((llen = mxf_write_l(mxfFile, len)) != 0);
mxf_initialise_list_iter(&iter, partitions);
while (mxf_next_list_iter_element(&iter))
{
MXFPartition *partition = (MXFPartition*)mxf_get_iter_element(&iter);
CHK_ORET(mxf_write_uint32(mxfFile, partition->bodySID));
CHK_ORET(mxf_write_uint64(mxfFile, partition->thisPartition));
}
CHK_ORET(mxf_write_uint32(mxfFile, (uint32_t)(16 + llen + len)));
return 1;
}
int is_null_timecode_index(TimecodeIndex* index)
{
TimecodeIndexArray* indexArray;
long listLen;
/* index is null if the index is empty or has a duration > 1 with timecode frozen at 00:00:00:00 */
listLen = mxf_get_list_length(&index->indexArrays);
if (listLen == 0)
{
return 1;
}
else if (listLen == 1)
{
indexArray = (TimecodeIndexArray*)mxf_get_first_list_element(&index->indexArrays);
if (indexArray->numElements == 0 ||
(indexArray->numElements == 1 && indexArray->elements[0].frozen &&
indexArray->elements[0].timecodePos == 0 && indexArray->elements[0].duration > 1))
{
return 1;
}
}
return 0;
}
int mxf_find_singular_set_by_key(MXFHeaderMetadata* headerMetadata, const mxfKey* key, MXFMetadataSet** set)
{
MXFList* setList = NULL;
if (!mxf_find_set_by_key(headerMetadata, key, &setList))
{
return 0;
}
CHK_OFAIL(mxf_get_list_length(setList) == 1);
*set = (MXFMetadataSet*)mxf_get_first_list_element(setList);
mxf_free_list(&setList);
return 1;
fail:
mxf_free_list(&setList);
return 0;
}
int archive_mxf_is_metadata_only(const char* filename)
{
MXFPageFile* mxfPageFile = NULL;
MXFFile* mxfFile = NULL;
mxfKey key;
uint8_t llen;
uint64_t len;
MXFPartition* headerPartition = NULL;
int result;
/* 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 header partition pack */
if (!mxf_read_header_pp_kl_with_runin(mxfFile, &key, &llen, &len) ||
!mxf_read_partition(mxfFile, &key, &headerPartition))
{
return 0;
}
/* check whether there is an essence container label */
result = (mxf_get_list_length(&headerPartition->essenceContainers) == 0);
mxf_free_partition(&headerPartition);
mxf_file_close(&mxfFile);
return result;
fail:
mxf_free_partition(&headerPartition);
mxf_file_close(&mxfFile);
return 0;
}
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 test_read(const char *filename)
{
MXFFile *mxfFile = NULL;
MXFFilePartitions partitions;
MXFPartition *headerPartition = NULL;
MXFPartition *bodyPartition1 = NULL;
MXFPartition *bodyPartition2 = NULL;
MXFPartition *footerPartition = NULL;
MXFListIterator iter;
mxfKey key;
uint8_t llen;
uint64_t len;
int i;
MXFRIP rip;
if (!mxf_disk_file_open_read(filename, &mxfFile))
{
mxf_log_error("Failed to open '%s'" LOG_LOC_FORMAT, filename, LOG_LOC_PARAMS);
return 0;
}
mxf_initialise_file_partitions(&partitions);
/* TEST */
/* read RIP */
CHK_OFAIL(mxf_read_rip(mxfFile, &rip));
CHK_OFAIL(mxf_get_list_length(&rip.entries) == 4);
CHK_OFAIL(mxf_file_seek(mxfFile, 0, SEEK_SET));
mxf_initialise_list_iter(&iter, &rip.entries);
i = 0;
while (mxf_next_list_iter_element(&iter))
{
MXFRIPEntry *entry = (MXFRIPEntry*)mxf_get_iter_element(&iter);
if (i == 0)
{
CHK_OFAIL(entry->bodySID == 0);
CHK_OFAIL(entry->thisPartition == RUNIN_LEN);
}
else if (i == 1)
{
CHK_OFAIL(entry->bodySID == 2);
CHK_OFAIL(entry->thisPartition == RUNIN_LEN + 1161);
}
else if (i == 2)
{
CHK_OFAIL(entry->bodySID == 3);
CHK_OFAIL(entry->thisPartition == RUNIN_LEN + 1298);
}
else
{
CHK_OFAIL(entry->bodySID == 0);
CHK_OFAIL(entry->thisPartition == RUNIN_LEN + 1554);
}
i++;
}
/* read header pp, allowing for runin */
CHK_OFAIL(mxf_read_header_pp_kl_with_runin(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &headerPartition));
CHK_OFAIL(mxf_append_partition(&partitions, headerPartition));
CHK_OFAIL(headerPartition->indexSID == 1);
CHK_OFAIL(headerPartition->bodySID == 0);
CHK_OFAIL(mxf_get_list_length(&headerPartition->essenceContainers) == 2);
mxf_initialise_list_iter(&iter, &headerPartition->essenceContainers);
i = 0;
while (mxf_next_list_iter_element(&iter))
{
mxfUL *label = (mxfUL*)mxf_get_iter_element(&iter);
if (i == 0)
{
CHK_OFAIL(mxf_equals_ul(label, &MXF_EC_L(SD_Unc_625_50i_422_135_FrameWrapped)));
}
else
{
CHK_OFAIL(mxf_equals_ul(label, &MXF_EC_L(BWFFrameWrapped)));
}
i++;
}
/* skip filler and read body pp 1 */
CHK_OFAIL(mxf_read_next_nonfiller_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_is_partition_pack(&key));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &bodyPartition1));
CHK_OFAIL(bodyPartition1->indexSID == 0);
CHK_OFAIL(bodyPartition1->bodySID == 2);
CHK_OFAIL(mxf_append_partition(&partitions, bodyPartition1));
/* skip filler and read body pp 2 */
CHK_OFAIL(mxf_read_next_nonfiller_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_is_partition_pack(&key));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &bodyPartition2));
CHK_OFAIL(bodyPartition2->indexSID == 0);
CHK_OFAIL(bodyPartition2->bodySID == 3);
CHK_OFAIL(mxf_append_partition(&partitions, bodyPartition2));
/* skip filler and read footer pp */
CHK_OFAIL(mxf_read_next_nonfiller_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_is_partition_pack(&key));
CHK_OFAIL(mxf_read_partition(mxfFile, &key, &footerPartition));
CHK_OFAIL(footerPartition->bodySID == 0);
CHK_OFAIL(footerPartition->indexSID == 1);
CHK_OFAIL(mxf_append_partition(&partitions, footerPartition));
mxf_initialise_list_iter(&iter, &footerPartition->essenceContainers);
i = 0;
while (mxf_next_list_iter_element(&iter))
{
mxfUL *label = (mxfUL*)mxf_get_iter_element(&iter);
if (i == 0)
{
CHK_OFAIL(mxf_equals_ul(label, &MXF_EC_L(SD_Unc_625_50i_422_135_FrameWrapped)));
}
else
{
CHK_OFAIL(mxf_equals_ul(label, &MXF_EC_L(BWFFrameWrapped)));
}
i++;
}
mxf_clear_rip(&rip);
mxf_file_close(&mxfFile);
mxf_clear_file_partitions(&partitions);
return 1;
fail:
mxf_clear_rip(&rip);
mxf_file_close(&mxfFile);
mxf_clear_file_partitions(&partitions);
return 0;
}
int add_timecode_to_index(TimecodeIndex* index, ArchiveTimecode* timecode)
{
TimecodeIndexArray* newArray = NULL;
TimecodeIndexArray* lastArray;
int64_t timecodePos = timecode_to_position(timecode);
if (mxf_get_list_length(&index->indexArrays) == 0)
{
CHK_MALLOC_OFAIL(newArray, TimecodeIndexArray);
CHK_MALLOC_ARRAY_OFAIL(newArray->elements, TimecodeIndexElement, index->arraySize);
newArray->numElements = 0;
CHK_OFAIL(mxf_append_list_element(&index->indexArrays, newArray));
newArray = NULL; /* list has ownership */
}
lastArray = (TimecodeIndexArray*)mxf_get_last_list_element(&index->indexArrays);
if (lastArray->numElements != 0)
{
if (lastArray->elements[lastArray->numElements - 1].timecodePos +
lastArray->elements[lastArray->numElements - 1].duration == timecodePos)
{
/* timecode is previous + 1 */
lastArray->elements[lastArray->numElements - 1].duration++;
}
else if (lastArray->elements[lastArray->numElements - 1].timecodePos == timecodePos &&
(lastArray->elements[lastArray->numElements - 1].frozen ||
lastArray->elements[lastArray->numElements - 1].duration == 1))
{
/* timecode is frozen with the previous timecode value */
lastArray->elements[lastArray->numElements - 1].frozen = 1;
lastArray->elements[lastArray->numElements - 1].duration++;
}
else
{
/* timecode is not frozen or previous + 1 */
if (lastArray->numElements == index->arraySize)
{
CHK_MALLOC_OFAIL(newArray, TimecodeIndexArray);
CHK_MALLOC_ARRAY_OFAIL(newArray->elements, TimecodeIndexElement, index->arraySize);
newArray->numElements = 0;
CHK_OFAIL(mxf_append_list_element(&index->indexArrays, newArray));
newArray = NULL; /* list has ownership */
lastArray = (TimecodeIndexArray*)mxf_get_last_list_element(&index->indexArrays);
}
lastArray->numElements++;
lastArray->elements[lastArray->numElements - 1].frozen = 0;
lastArray->elements[lastArray->numElements - 1].timecodePos = timecodePos;
lastArray->elements[lastArray->numElements - 1].duration = 1;
}
}
else
{
lastArray->numElements++;
lastArray->elements[lastArray->numElements - 1].frozen = 0;
lastArray->elements[lastArray->numElements - 1].timecodePos = timecodePos;
lastArray->elements[lastArray->numElements - 1].duration = 1;
}
return 1;
fail:
free_index_array(&newArray);
return 0;
}
int op1a_initialise_reader(MXFReader *reader, MXFPartition **headerPartition)
{
MXFFile *mxfFile = reader->mxfFile;
EssenceReader *essenceReader = reader->essenceReader;
EssenceReaderData *data;
size_t i;
size_t numPartitions;
MXFPartition *partition;
mxfKey key;
uint8_t llen;
uint64_t len;
essenceReader->data = NULL;
/* init essence reader */
CHK_MALLOC_OFAIL(essenceReader->data, EssenceReaderData);
memset(essenceReader->data, 0, sizeof(EssenceReaderData));
essenceReader->data->headerPartition = *headerPartition;
essenceReader->close = op1a_close;
essenceReader->position_at_frame = op1a_position_at_frame;
essenceReader->skip_next_frame = op1a_skip_next_frame;
essenceReader->read_next_frame = op1a_read_next_frame;
essenceReader->get_next_frame_number = op1a_get_next_frame_number;
essenceReader->get_last_written_frame_number = op1a_get_last_written_frame_number;
essenceReader->get_header_metadata = op1a_get_header_metadata;
essenceReader->have_footer_metadata = op1a_have_footer_metadata;
essenceReader->set_frame_rate = op1a_set_frame_rate;
data = essenceReader->data;
if (mxf_file_is_seekable(mxfFile))
{
/* get the file partitions */
CHK_OFAIL(get_file_partitions(mxfFile, data->headerPartition, &data->partitions));
/* process the last instance of header metadata */
numPartitions = mxf_get_list_length(&data->partitions);
for (i = numPartitions; i > 0; i--)
{
partition = (MXFPartition*)mxf_get_list_element(&data->partitions, i - 1);
if (partition->headerByteCount != 0)
{
if (!mxf_partition_is_closed(&partition->key))
{
mxf_log_warn("No closed partition with header metadata found" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
}
if (!mxf_partition_is_complete(&partition->key))
{
mxf_log_warn("No complete partition with header metadata found" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
}
/* seek to start of partition and skip the partition pack */
CHK_OFAIL(mxf_file_seek(mxfFile, partition->thisPartition, SEEK_SET));
CHK_OFAIL(mxf_read_kl(mxfFile, &key, &llen, &len));
CHK_OFAIL(mxf_skip(mxfFile, len));
CHK_OFAIL(process_metadata(reader, partition));
if (mxf_is_footer_partition_pack(&partition->key))
{
data->haveFooterMetadata = 1;
}
break;
}
}
if (i == 0)
{
mxf_log_error("No partition with header metadata found" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
goto fail;
}
if (!reader->isMetadataOnly)
{
/* create file index */
CHK_OFAIL(create_index(mxfFile, &data->partitions, data->indexSID, data->bodySID, &data->index));
/* position at start of essence */
CHK_OFAIL(set_position(mxfFile, data->index, 0));
}
}
else
{
essenceReader->data->nsIndex.currentPosition = -1;
/* process the header metadata */
if (!mxf_partition_is_closed(&data->headerPartition->key))
{
mxf_log_warn("Header partition is not closed" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
}
if (!mxf_partition_is_complete(&data->headerPartition->key))
{
mxf_log_warn("Header partition is incomplete" LOG_LOC_FORMAT, LOG_LOC_PARAMS);
}
CHK_OFAIL(process_metadata(reader, data->headerPartition));
if (!reader->isMetadataOnly)
{
/* position at start of essence */
CHK_OFAIL(ns_position_at_first_frame(reader));
}
}
*headerPartition = NULL; /* take ownership */
return 1;
fail:
reader->essenceReader->data->headerPartition = NULL; /* release ownership */
/* essenceReader->close() will be called when closing the reader */
return 0;
}
int op1a_is_supported(MXFPartition *headerPartition)
{
MXFListIterator iter;
mxfUL *label;
int supportCount = 0;
if (!mxf_is_op_1a(&headerPartition->operationalPattern))
{
return 0;
}
if (mxf_get_list_length(&headerPartition->essenceContainers) == 0)
{
/* metadata only */
return 1;
}
if (mxf_get_list_length(&headerPartition->essenceContainers) == 1)
{
label = (mxfUL*)mxf_get_list_element(&headerPartition->essenceContainers, 0);
if (is_d10_essence(label))
{
return 1;
}
}
mxf_initialise_list_iter(&iter, &headerPartition->essenceContainers);
while (mxf_next_list_iter_element(&iter))
{
label = (mxfUL*)mxf_get_iter_element(&iter);
if (mxf_equals_ul(label, &MXF_EC_L(MultipleWrappings)))
{
supportCount++;
}
else if (is_d10_picture_essence(label))
{
supportCount++;
}
else if (mxf_equals_ul(label, &MXF_EC_L(IECDV_25_525_60_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(IECDV_25_625_50_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_25_525_60_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_25_625_50_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_50_525_60_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_50_625_50_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_100_1080_50_I_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_100_1080_60_I_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_100_720_50_P_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(DVBased_100_720_60_P_FrameWrapped)))
{
supportCount++;
}
else if (mxf_equals_ul(label, &MXF_EC_L(SD_Unc_625_50i_422_135_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(SD_Unc_525_5994i_422_135_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_50i_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_5994i_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_25p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_50p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_2997p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_1080_5994p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_720_25p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_720_2997p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_720_50p_422_FrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(HD_Unc_720_5994p_422_FrameWrapped)))
{
supportCount++;
}
else if (mxf_equals_ul(label, &MXF_EC_L(BWFFrameWrapped)) ||
mxf_equals_ul(label, &MXF_EC_L(AES3FrameWrapped)))
{
supportCount++;
}
else if (mxf_is_avc_ec(label, 1))
{
supportCount++;
}
}
return supportCount > 0;
}
