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 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;
}
int main()
{
MXFPageFile *mxfPageFile;
MXFFile *mxfFile;
uint8_t *data;
int i;
data = malloc(DATA_SIZE);
remove_test_files();
CHECK(mxf_page_file_open_new(g_testFile, PAGE_SIZE, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
memset(data, 0, DATA_SIZE);
CHECK(mxf_file_write(mxfFile, data, DATA_SIZE) == DATA_SIZE);
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_open_modify(g_testFile, PAGE_SIZE, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
memset(data, 1, DATA_SIZE);
CHECK(mxf_file_size(mxfFile) == DATA_SIZE);
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_file_eof(mxfFile));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE);
CHECK(mxf_file_write(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_file_eof(mxfFile));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_seek(mxfFile, 0, SEEK_SET));
CHECK(mxf_file_tell(mxfFile) == 0);
CHECK(mxf_file_write(mxfFile, data, DATA_SIZE) == DATA_SIZE);
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_open_read(g_testFile, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
memset(data, 1, DATA_SIZE);
CHECK(mxf_file_size(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE);
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_file_eof(mxfFile));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_seek(mxfFile, 0, SEEK_SET));
CHECK(mxf_file_tell(mxfFile) == 0);
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE);
CHECK(mxf_file_seek(mxfFile, DATA_SIZE + 1, SEEK_SET));
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE - 1) == DATA_SIZE - 1);
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_seek(mxfFile, DATA_SIZE - 1, SEEK_SET));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE - 1);
CHECK(mxf_file_seek(mxfFile, DATA_SIZE * 2, SEEK_SET));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_seek(mxfFile, 0, SEEK_END));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE * 2);
CHECK(mxf_file_seek(mxfFile, -DATA_SIZE * 2, SEEK_END));
CHECK(mxf_file_tell(mxfFile) == 0);
CHECK(mxf_file_seek(mxfFile, DATA_SIZE - 5, SEEK_CUR));
CHECK(mxf_file_tell(mxfFile) == DATA_SIZE - 5);
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_open_new("pagetest_out__%d.mxf", PAGE_SIZE, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
CHECK(mxf_file_write(mxfFile, data, DATA_SIZE) == DATA_SIZE);
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_remove("pagetest_out__%d.mxf"));
/* test forward truncate */
CHECK(mxf_page_file_open_new(g_testFile, PAGE_SIZE, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
memset(data, 0, DATA_SIZE);
for (i = 0; i < 10; i++)
{
CHECK(mxf_file_write(mxfFile, data, DATA_SIZE) == DATA_SIZE);
}
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_open_modify(g_testFile, PAGE_SIZE, &mxfPageFile));
mxfFile = mxf_page_file_get_file(mxfPageFile);
memset(data, 1, DATA_SIZE);
CHECK(mxf_page_file_forward_truncate(mxfPageFile));
for (i = 0; i < 5; i++)
{
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
}
CHECK(mxf_page_file_forward_truncate(mxfPageFile));
for (i = 0; i < 4; i++)
{
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
}
CHECK(mxf_page_file_forward_truncate(mxfPageFile));
CHECK(mxf_file_read(mxfFile, data, DATA_SIZE) == DATA_SIZE);
CHECK(mxf_page_file_forward_truncate(mxfPageFile));
mxf_file_close(&mxfFile);
CHECK(mxf_page_file_remove(g_testFile));
free(data);
return 0;
}