241 static const uint8_t mxf_header_partition_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02 };
242 static const uint8_t mxf_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01 };
243 static const uint8_t mxf_avid_essence_element_key[] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0e,0x04,0x03,0x01 };
244 static const uint8_t mxf_system_item_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x03,0x01,0x04 };
247 static const uint8_t mxf_crypto_source_container_ul[] = { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x02,0x02,0x00,0x00,0x00 };
248 static const uint8_t mxf_encrypted_triplet_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x04,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x7e,0x01,0x00 };
249 static const uint8_t mxf_encrypted_essence_container[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0b,0x01,0x00 };
250 static const uint8_t mxf_random_index_pack_key[] = { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x11,0x01,0x00 };
251 static const uint8_t mxf_sony_mpeg4_extradata[] = { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0e,0x06,0x06,0x02,0x02,0x01,0x00,0x00 };
253 #define IS_KLV_KEY(x, y) (!memcmp(x, y, sizeof(y)))
259 int bytes_num = size & 0x7f;
265 size = size << 8 |
avio_r8(pb);
277 else if (b != key[i])
291 return klv->
length == -1 ? -1 : 0;
311 const uint8_t *buf_ptr, *end_ptr;
320 data_ptr = pkt->
data;
321 end_ptr = pkt->
data + length;
322 buf_ptr = pkt->
data + 4;
325 uint32_t
sample = bytestream_get_le32(&buf_ptr);
327 bytestream_put_le24(&data_ptr, (sample >> 4) & 0xffffff);
329 bytestream_put_le16(&data_ptr, (sample >> 12) & 0xffff);
339 static const uint8_t checkv[16] = {0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b};
345 uint64_t plaintext_size;
372 if (orig_size < plaintext_size)
376 if (size < 32 || size - 32 < orig_size)
382 if (memcmp(tmpbuf, checkv, 16))
388 else if (size < plaintext_size)
390 size -= plaintext_size;
393 &pkt->
data[plaintext_size], size >> 4, ivec, 1);
406 if (item_len != 18) {
410 if (item_num > UINT_MAX / item_len)
425 uint64_t footer_partition;
426 uint32_t nb_essence_containers;
447 memset(partition, 0,
sizeof(*partition));
485 "PreviousPartition equal to ThisPartition %"PRIx64
"\n",
498 "Overriding PreviousPartition with %"PRIx64
"\n",
503 if (footer_partition) {
506 "inconsistent FooterPartition value: %"PRIu64
" != %"PRIu64
"\n",
514 "PartitionPack: ThisPartition = 0x%"PRIX64
515 ", PreviousPartition = 0x%"PRIX64
", "
516 "FooterPartition = 0x%"PRIX64
", IndexSID = %i, BodySID = %i\n",
525 "PreviousPartition points to this partition or forward\n");
529 if (op[12] == 1 && op[13] == 1) mxf->
op =
OP1a;
530 else if (op[12] == 1 && op[13] == 2) mxf->
op =
OP1b;
531 else if (op[12] == 1 && op[13] == 3) mxf->
op =
OP1c;
532 else if (op[12] == 2 && op[13] == 1) mxf->
op =
OP2a;
533 else if (op[12] == 2 && op[13] == 2) mxf->
op =
OP2b;
534 else if (op[12] == 2 && op[13] == 3) mxf->
op =
OP2c;
535 else if (op[12] == 3 && op[13] == 1) mxf->
op =
OP3a;
536 else if (op[12] == 3 && op[13] == 2) mxf->
op =
OP3b;
537 else if (op[12] == 3 && op[13] == 3) mxf->
op =
OP3c;
538 else if (op[12] == 64&& op[13] == 1) mxf->
op =
OPSonyOpt;
539 else if (op[12] == 0x10) {
544 if (nb_essence_containers != 1) {
550 "\"OPAtom\" with %"PRIu32
" ECs - assuming %s\n",
551 nb_essence_containers,
552 op ==
OP1a ?
"OP1a" :
"OPAtom");
558 av_log(mxf->
fc,
AV_LOG_ERROR,
"unknown operational pattern: %02xh %02xh - guessing OP1a\n", op[12], op[13]);
647 if (package->tracks_count >= UINT_MAX /
sizeof(
UID))
649 package->tracks_refs =
av_malloc(package->tracks_count *
sizeof(
UID));
650 if (!package->tracks_refs)
713 if (package->tracks_count >= UINT_MAX /
sizeof(
UID))
715 package->tracks_refs =
av_malloc(package->tracks_count *
sizeof(
UID));
716 if (!package->tracks_refs)
727 avio_read(pb, package->descriptor_ref, 16);
811 int code, value, ofs = 0;
820 layout[ofs++] = code;
821 layout[ofs++] = value;
916 for (i = 0; i <
len; i++) {
917 if (i != 7 && key[i] != uid[i])
925 while (uls->
uid[0]) {
950 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x02,0x0d,0x01,0x03,0x01,0x02,0x04,0x60,0x01 }, 14,
AV_CODEC_ID_MPEG2VIDEO },
951 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, 14,
AV_CODEC_ID_DVVIDEO },
952 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x05,0x00,0x00 }, 14,
AV_CODEC_ID_RAWVIDEO },
953 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,
AV_CODEC_ID_NONE },
958 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x01,0x00,0x00 }, 14,
AV_CODEC_ID_MPEG2VIDEO },
959 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,
AV_CODEC_ID_NONE },
964 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x01,0x32,0x00,0x00 }, 14,
AV_CODEC_ID_H264 },
965 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, 14,
AV_CODEC_ID_JPEG2000 },
966 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,
AV_CODEC_ID_NONE },
971 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 14,
AV_CODEC_ID_PCM_S16LE },
972 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x02,0x0d,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, 14,
AV_CODEC_ID_MP2 },
973 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x01,0x0d,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, 14,
AV_CODEC_ID_PCM_S16LE },
974 { { 0x06,0x0e,0x2b,0x34,0x01,0x01,0x01,0xff,0x4b,0x46,0x41,0x41,0x00,0x0d,0x4d,0x4F }, 14,
AV_CODEC_ID_PCM_S16LE },
975 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x03,0x04,0x02,0x02,0x02,0x03,0x03,0x01,0x00 }, 14,
AV_CODEC_ID_AAC },
976 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0,
AV_CODEC_ID_NONE },
980 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x09,0x0d,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 }, 16, 0 },
981 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x09,0x0d,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 }, 16,
AV_CODEC_ID_NONE },
985 "vbi_vanc_smpte_436M",
990 int i, j, nb_segments = 0;
992 int last_body_sid = -1, last_index_sid = -1, last_index_start = -1;
1002 *sorted_segments =
av_mallocz(nb_segments *
sizeof(**sorted_segments));
1003 unsorted_segments =
av_mallocz(nb_segments *
sizeof(*unsorted_segments));
1004 if (!*sorted_segments || !unsorted_segments) {
1014 *nb_sorted_segments = 0;
1017 for (i = 0; i < nb_segments; i++) {
1018 int best = -1, best_body_sid = -1, best_index_sid = -1, best_index_start = -1;
1019 uint64_t best_index_duration = 0;
1021 for (j = 0; j < nb_segments; j++) {
1043 (*sorted_segments)[(*nb_sorted_segments)++] = unsorted_segments[best];
1044 last_body_sid = best_body_sid;
1045 last_index_sid = best_index_sid;
1046 last_index_start = best_index_start;
1060 int64_t offset_in = offset;
1077 "failed to find absolute offset of %"PRIX64
" in BodySID %i - partial file?\n",
1078 offset_in, body_sid);
1110 int64_t offset_temp = 0;
1134 av_log(mxf->
fc,
AV_LOG_ERROR,
"IndexSID %i segment at %"PRId64
" missing EditUnitByteCount and IndexEntryArray\n",
1140 *edit_unit_out = edit_unit;
1158 int8_t max_temporal_offset = -128;
1190 for (x = 0; x < index_table->
nb_ptses; x++)
1222 int index_delta = 1;
1231 for (j = 0; j < n; j += index_delta, x++) {
1233 int index = x + offset;
1237 "x >= nb_ptses - IndexEntryCount %i < IndexDuration %"PRId64
"?\n",
1245 if (index < 0 || index >= index_table->
nb_ptses) {
1247 "index entry %i + TemporalOffset %i = %i, which is out of bounds\n",
1253 max_temporal_offset =
FFMAX(max_temporal_offset, offset);
1257 index_table->
first_dts = -max_temporal_offset;
1268 int i, j, k, ret, nb_sorted_segments;
1272 nb_sorted_segments <= 0) {
1278 for (i = 0; i < nb_sorted_segments; i++) {
1279 if (i == 0 || sorted_segments[i-1]->index_sid != sorted_segments[i]->index_sid)
1281 else if (sorted_segments[i-1]->body_sid != sorted_segments[i]->body_sid) {
1284 goto finish_decoding_index;
1293 goto finish_decoding_index;
1297 for (i = j = 0; i < nb_sorted_segments; i++) {
1298 if (i != 0 && sorted_segments[i-1]->index_sid != sorted_segments[i]->index_sid) {
1314 " pointer array\n");
1316 goto finish_decoding_index;
1319 if (sorted_segments[i]->index_start_position)
1320 av_log(mxf->
fc,
AV_LOG_WARNING,
"IndexSID %i starts at EditUnit %"PRId64
" - seeking may not work as expected\n",
1328 goto finish_decoding_index;
1336 av_log(mxf->
fc,
AV_LOG_WARNING,
"IndexSID %i segment %i has zero IndexDuration and there's more than one segment\n",
1353 finish_decoding_index:
1376 if (material_package)
break;
1378 if (!material_package) {
1390 UID *essence_container_ul =
NULL;
1418 source_package = temp_package;
1422 if (!source_package) {
1423 av_dlog(mxf->
fc,
"material track %d: no corresponding source package found\n", material_track->
track_id);
1433 source_track = temp_track;
1437 if (!source_track) {
1442 if (!source_track || !component)
1473 "Invalid edit rate (%d/%d) found on stream #%d, "
1474 "defaulting to 25/1\n",
1495 if (!sub_descriptor) {
1500 descriptor = sub_descriptor;
1521 essence_container_ul = &((
MXFCryptoContext *)metadata)->source_container_ul;
1533 container_ul =
mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
1543 "SegmentedFrame layout isn't currently supported\n");
1551 "OneField frame layout isn't currently supported\n");
1568 "Field dominance %d support",
1577 "Unknown frame layout type: %d\n",
1599 char material_origin[3];
1600 snprintf(material_origin,
sizeof(material_origin),
"%d", material_track->
sequence->
origin);
1604 char source_origin[3];
1605 snprintf(source_origin,
sizeof(source_origin),
"%d", source_track->
sequence->
origin);
1609 container_ul =
mxf_get_codec_ul(mxf_sound_essence_container_uls, essence_container_ul);
1620 "found for stream #%d, time base forced to 1/48000\n",
1648 essence_container_ul)->
id;
1649 if (codec_id >= 0 &&
1652 mxf_data_essence_descriptor[codec_id], 0);
1685 buf_size = size + size / 2 + 1;
1705 for (i = 0; i <
sizeof(
UID); i++) {
1706 snprintf(p, 2 + 1,
"%.2x", uid[i]);
1708 if (i == 3 || i == 5 || i == 7 || i == 9) {
1709 snprintf(p, 1 + 1,
"-");
1718 struct tm time = { 0 };
1719 time.tm_year = (timestamp >> 48) - 1900;
1720 time.tm_mon = (timestamp >> 40 & 0xFF) - 1;
1721 time.tm_mday = (timestamp >> 32 & 0xFF);
1722 time.tm_hour = (timestamp >> 24 & 0xFF);
1723 time.tm_min = (timestamp >> 16 & 0xFF);
1724 time.tm_sec = (timestamp >> 8 & 0xFF);
1729 time.tm_mon = av_clip(time.tm_mon, 0, 11);
1730 time.tm_mday = av_clip(time.tm_mday, 1, 31);
1731 time.tm_hour = av_clip(time.tm_hour, 0, 23);
1732 time.tm_min = av_clip(time.tm_min, 0, 59);
1733 time.tm_sec = av_clip(time.tm_sec, 0, 59);
1738 strftime(*str, 32,
"%Y-%m-%d %H:%M:%S", &time);
1743 #define SET_STR_METADATA(pb, name, str) do { \
1744 if ((ret = mxf_read_utf16_string(pb, size, &str)) < 0) \
1746 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1749 #define SET_UID_METADATA(pb, name, var, str) do { \
1750 avio_read(pb, var, 16); \
1751 if ((ret = mxf_uid_to_str(var, &str)) < 0) \
1753 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1756 #define SET_TS_METADATA(pb, name, var, str) do { \
1757 var = avio_rb64(pb); \
1758 if ((ret = mxf_timestamp_to_str(var, &str)) < 0) \
1760 av_dict_set(&s->metadata, name, str, AV_DICT_DONT_STRDUP_VAL); \
1801 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x05,0x01,0x00 },
mxf_read_primer_pack },
1803 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x01,0x00 },
mxf_read_partition_pack },
1804 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x02,0x00 },
mxf_read_partition_pack },
1805 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x03,0x00 },
mxf_read_partition_pack },
1806 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x02,0x04,0x00 },
mxf_read_partition_pack },
1807 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x01,0x00 },
mxf_read_partition_pack },
1808 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x02,0x00 },
mxf_read_partition_pack },
1809 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x03,0x00 },
mxf_read_partition_pack },
1810 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x03,0x04,0x00 },
mxf_read_partition_pack },
1811 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x04,0x02,0x00 },
mxf_read_partition_pack },
1812 { { 0x06,0x0e,0x2b,0x34,0x02,0x05,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x04,0x04,0x00 },
mxf_read_partition_pack },
1813 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x30,0x00 },
mxf_read_identification_metadata },
1814 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x18,0x00 },
mxf_read_content_storage, 0,
AnyType },
1815 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x37,0x00 },
mxf_read_source_package,
sizeof(
MXFPackage),
SourcePackage },
1816 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x36,0x00 },
mxf_read_material_package,
sizeof(
MXFPackage),
MaterialPackage },
1817 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x0F,0x00 },
mxf_read_sequence,
sizeof(
MXFSequence),
Sequence },
1818 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x11,0x00 },
mxf_read_source_clip,
sizeof(
MXFStructuralComponent),
SourceClip },
1819 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x44,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
MultipleDescriptor },
1820 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x42,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1821 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x28,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1822 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x29,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1823 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1824 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1825 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1826 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1827 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5c,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1828 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5e,0x00 },
mxf_read_generic_descriptor,
sizeof(
MXFDescriptor),
Descriptor },
1829 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3A,0x00 },
mxf_read_track,
sizeof(
MXFTrack),
Track },
1830 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x3B,0x00 },
mxf_read_track,
sizeof(
MXFTrack),
Track },
1831 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x04,0x01,0x02,0x02,0x00,0x00 },
mxf_read_cryptographic_context,
sizeof(
MXFCryptoContext),
CryptoContext },
1832 { { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 },
mxf_read_index_table_segment,
sizeof(
MXFIndexTableSegment),
IndexTableSegment },
1833 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
NULL, 0,
AnyType },
1851 av_dlog(mxf->
fc,
"local tag %#04x size %d\n", tag, size);
1860 if (local_tag == tag) {
1862 av_dlog(mxf->
fc,
"local tag %#04x\n", local_tag);
1867 if (ctx_size && tag == 0x3C0A)
1869 else if ((ret = read_child(ctx, pb, tag, size, uid, -1)) < 0)
1879 "local tag %#04x extends past end of local set @ %#"PRIx64
"\n",
1885 if (ctx_size) ctx->
type = type;
1905 av_dlog(mxf->
fc,
"seeking to previous partition\n");
1926 av_dlog(mxf->
fc,
"no last partition\n");
1930 av_dlog(mxf->
fc,
"seeking to last partition\n");
1943 "failed to seek to last partition @ 0x%" PRIx64
1944 " (%"PRId64
") - partial file?\n",
1945 mxf->
run_in + offset, ret);
1993 "partition %i: bad ThisPartition = %"PRIX64
"\n",
2003 int64_t ret = (position / kag_size) * kag_size;
2004 return ret == position ? ret : ret + kag_size;
2020 int64_t op1a_essence_offset =
2088 if (length <= 32 || length >=
FFMIN(file_size, INT_MAX))
2093 klv.
length != length - 20)
2107 int64_t essence_offset = 0;
2144 "found essence prior to first PartitionPack\n");
2152 if (!essence_offset)
2153 essence_offset = klv.
offset;
2169 for (metadata = mxf_metadata_read_table; metadata->
read; metadata++) {
2172 if (klv.
key[5] == 0x53) {
2197 if (!metadata->
read)
2201 if (!essence_offset) {
2219 av_log(mxf->
fc,
AV_LOG_INFO,
"got %i index tables - only the first one (IndexSID %i) will be used\n",
2237 int64_t last_ofs = -1, next_ofs = -1;
2249 NULL, &next_ofs, 0) < 0)
2252 if (next_ofs <= last_ofs) {
2256 "next_ofs didn't change. not deriving packet timestamps\n");
2260 if (next_ofs > current_offset)
2263 last_ofs = next_ofs;
2276 uint64_t *sample_count)
2278 int i, total = 0, size = 0;
2285 if ((sample_rate.
num / sample_rate.
den) == 48000)
2288 int remainder = (sample_rate.
num * time_base.
num) %
2289 (time_base.
den * sample_rate.
den);
2291 av_mul_q(sample_rate, time_base)));
2294 "seeking detected on stream #%d with time base (%d/%d) and "
2295 "sample rate (%d/%d), audio pts won't be accurate.\n",
2296 stream_index, time_base.
num, time_base.
den,
2297 sample_rate.
num, sample_rate.
den);
2323 if (!bits_per_sample)
2357 int64_t next_ofs, next_klv;
2364 "error getting stream index %"PRIu32
"\n",
2378 if (next_ofs >= 0 && next_klv > next_ofs) {
2383 "OPAtom misinterpreted as OP1a?"
2384 "KLV for edit unit %i extending into "
2391 if (klv.
key[12] == 0x06 && klv.
key[13] == 0x01 && klv.
key[14] == 0x10) {
2444 int64_t ret64, pos, next_pos;
2473 if ((size = next_pos - pos) <= 0) {
2478 if ((ret64 =
avio_seek(s->
pb, pos, SEEK_SET)) < 0)
2563 for (; bufp < end; bufp++) {
2590 if (sample_time < 0)
2605 sample_time =
FFMAX(sample_time, 0);
2629 uint64_t current_sample_count = 0;
static const uint8_t mxf_crypto_source_container_ul[]
static void mxf_compute_essence_containers(MXFContext *mxf)
Figure out the proper offset and length of the essence container in each partition.
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
static int mxf_parse_structural_metadata(MXFContext *mxf)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int64_t avio_size(AVIOContext *s)
Get the filesize.
unsigned int component_depth
KLVPacket current_klv_data
static int mxf_read_index_table_segment(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static const MXFMetadataReadTableEntry mxf_metadata_read_table[]
#define PRINT_KEY(pc, s, x)
static int klv_read_packet(KLVPacket *klv, AVIOContext *pb)
UID * structural_components_refs
#define AV_LOG_WARNING
Something somehow does not look correct.
static int mxf_seek_to_previous_partition(MXFContext *mxf)
Seeks to the previous partition, if possible.
int64_t pos
byte position in stream, -1 if unknown
static int mxf_probe(AVProbeData *p)
void av_shrink_packet(AVPacket *pkt, int size)
Reduce packet size, correctly zeroing padding.
static void mxf_read_random_index_pack(AVFormatContext *s)
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
int index
stream index in AVFormatContext
#define SET_TS_METADATA(pb, name, var, str)
uint64_t footer_partition
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
enum MXFMetadataSetType type
void av_aes_crypt(AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
Encrypt or decrypt a buffer using a previously initialized context.
static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
static int mxf_uid_to_str(UID uid, char **str)
static int mxf_get_d10_aes3_packet(AVIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
#define FF_ARRAY_ELEMS(a)
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic?ac->func_descr_generic:ac->func_descr)
unsigned int avio_rb16(AVIOContext *s)
static int mxf_read_header(AVFormatContext *s)
enum MXFMetadataSetType type
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
static int mxf_parse_handle_partition_or_eof(MXFContext *mxf)
Called when the next partition or EOF is encountered.
static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadFunc *read_child, int ctx_size, enum MXFMetadataSetType type)
static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
static int is_pcm(enum AVCodecID codec_id)
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
const MXFSamplesPerFrame * ff_mxf_get_samples_per_frame(AVFormatContext *s, AVRational time_base)
Opaque data information usually continuous.
static const uint8_t mxf_avid_essence_element_key[]
unsigned int avio_rb32(AVIOContext *s)
AVRational index_edit_rate
enum AVStreamParseType need_parsing
int id
Format-specific stream ID.
static int mxf_read_close(AVFormatContext *s)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
AVStream ** streams
A list of all streams in the file.
static int mxf_absolute_bodysid_offset(MXFContext *mxf, int body_sid, int64_t offset, int64_t *offset_out)
Computes the absolute file offset of the given essence container offset.
static void compute_partition_essence_offset(AVFormatContext *s, MXFContext *mxf, KLVPacket *klv)
static const uint8_t mxf_klv_key[]
int MXFMetadataReadFunc(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static double av_q2d(AVRational a)
Convert rational to double.
static int mxf_compute_index_tables(MXFContext *mxf)
Sorts and collects index table segments into index tables.
MXFIndexTableSegment ** segments
const MXFCodecUL ff_mxf_codec_uls[]
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
static const uint8_t mxf_sony_mpeg4_extradata[]
#define AVERROR_EOF
End of file.
static av_cold int read_close(AVFormatContext *ctx)
#define AV_LOG_VERBOSE
Detailed information.
uint64_t avio_rb64(AVIOContext *s)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static const MXFCodecUL mxf_intra_only_essence_container_uls[]
unsigned int vert_subsampling
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
static const uint8_t mxf_random_index_pack_key[]
static int mxf_get_sorted_table_segments(MXFContext *mxf, int *nb_sorted_segments, MXFIndexTableSegment ***sorted_segments)
static int mxf_timestamp_to_str(uint64_t timestamp, char **str)
int64_t original_duration
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
#define SET_UID_METADATA(pb, name, var, str)
static int mxf_read_sync(AVIOContext *pb, const uint8_t *key, unsigned size)
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
AVCodecID
Identify the syntax and semantics of the bitstream.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int last_forward_partition
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
static void mxf_read_pixel_layout(AVIOContext *pb, MXFDescriptor *descriptor)
int8_t * temporal_offset_entries
static int mxf_read_sequence(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static int mxf_edit_unit_absolute_offset(MXFContext *mxf, MXFIndexTable *index_table, int64_t edit_unit, int64_t *edit_unit_out, int64_t *offset_out, int nag)
MXFDescriptor * descriptor
uint64_t index_start_position
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static int mxf_read_index_entry_array(AVIOContext *pb, MXFIndexTableSegment *segment)
static const MXFCodecUL mxf_intra_only_picture_essence_coding_uls[]
static const MXFCodecUL mxf_sound_essence_container_uls[]
void av_log(void *avcl, int level, const char *fmt,...)
static int mxf_parse_handle_essence(MXFContext *mxf)
Called when essence is encountered.
struct AVAES * av_aes_alloc(void)
Allocate an AVAES context.
static int64_t round_to_kag(int64_t position, int kag_size)
static int mxf_read_source_clip(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static int mxf_match_uid(const UID key, const UID uid, int len)
int avio_r8(AVIOContext *s)
AVCodecContext * codec
Codec context associated with this stream.
int buf_size
Size of buf except extra allocated bytes.
int ff_mxf_decode_pixel_layout(const char pixel_layout[16], enum AVPixelFormat *pix_fmt)
const MXFCodecUL ff_mxf_pixel_format_uls[]
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
#define FF_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
static const MXFCodecUL * mxf_get_codec_ul(const MXFCodecUL *uls, UID *uid)
MXFPartition * partitions
static const uint8_t mxf_essence_element_key[]
static void * mxf_resolve_strong_ref(MXFContext *mxf, UID *strong_ref, enum MXFMetadataSetType type)
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
static int mxf_read_utf16_string(AVIOContext *pb, int size, char **str)
unsigned int horiz_subsampling
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
static const uint8_t mxf_encrypted_triplet_key[]
enum AVPixelFormat pix_fmt
int64_t essence_offset
absolute offset of essence
int width
picture width / height.
static int mxf_read_material_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
int edit_units_per_packet
how many edit units to read at a time (PCM, OPAtom)
int64_t last_forward_tell
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
static const uint8_t mxf_header_partition_pack_key[]
static int mxf_read_primer_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static int mxf_decrypt_triplet(AVFormatContext *s, AVPacket *pkt, KLVPacket *klv)
static int mxf_read_identification_metadata(void *arg, AVIOContext *pb, int tag, int size, UID _uid, int64_t klv_offset)
static const char * mxf_data_essence_descriptor[]
static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
enum AVPixelFormat pix_fmt
static void mxf_handle_small_eubc(AVFormatContext *s)
Deal with the case where for some audio atoms EditUnitByteCount is very small (2, 4...
const MXFCodecUL ff_mxf_data_definition_uls[]
SMPTE RP224 http://www.smpte-ra.org/mdd/index.html.
UID * sub_descriptors_refs
static int mxf_read_source_package(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
preferred ID for MPEG-1/2 video decoding
static int read_header(FFV1Context *f)
#define AVERROR_PATCHWELCOME
Not yet implemented in Libav, patches welcome.
int av_aes_init(AVAES *a, const uint8_t *key, int key_bits, int decrypt)
Initialize an AVAES context.
#define AV_LOG_INFO
Standard information.
enum AVMediaType codec_type
int sub_descriptors_count
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static int mxf_read_generic_descriptor(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static const uint8_t mxf_encrypted_essence_container[]
main external API structure.
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
static const MXFCodecUL mxf_data_essence_container_uls[]
rational number numerator/denominator
static int mxf_read_partition_pack(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static const uint8_t mxf_system_item_key[]
unsigned partitions_count
static int mxf_is_intra_only(MXFDescriptor *d)
This structure contains the data a format has to probe a file.
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
static int64_t klv_decode_ber_length(AVIOContext *pb)
int64_t duration
Decoding: duration of the stream, in stream time base.
static int op(uint8_t **dst, const uint8_t *dst_end, GetByteContext *gb, int pixel, int count, int *x, int width, int linesize)
Perform decode operation.
static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static const MXFCodecUL mxf_picture_essence_container_uls[]
int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen)
static int mxf_set_audio_pts(MXFContext *mxf, AVCodecContext *codec, AVPacket *pkt)
int64_t start_time
Decoding: pts of the first frame of the stream, in stream time base.
MXFMetadataReadFunc * read
AVInputFormat ff_mxf_demuxer
AVIndexEntry * fake_index
int structural_components_count
static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
static int mxf_compute_ptses_fake_index(MXFContext *mxf, MXFIndexTable *index_table)
int eof_reached
true if eof reached
uint64_t * stream_offset_entries
int channels
number of audio channels
static int mxf_add_metadata_set(MXFContext *mxf, void *metadata_set)
void * priv_data
Format private data.
static int64_t mxf_essence_container_end(MXFContext *mxf, int body_sid)
Returns the end position of the essence container with given BodySID, or zero if unknown.
static int mxf_read_track(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
#define SET_STR_METADATA(pb, name, str)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
static void * av_mallocz_array(size_t nmemb, size_t size)
static int64_t mxf_set_current_edit_unit(MXFContext *mxf, int64_t current_offset)
Sets mxf->current_edit_unit based on what offset we're currently at.
int bit_rate
Total stream bitrate in bit/s, 0 if not available.
MXFMetadataSet ** metadata_sets
static int mxf_read_packet_old(AVFormatContext *s, AVPacket *pkt)
static int mxf_compute_sample_count(MXFContext *mxf, int stream_index, uint64_t *sample_count)
enum AVFieldOrder field_order
Field order.
MXFIndexTable * index_tables
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
AVPixelFormat
Pixel format.
This structure stores compressed data.
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
MXFPartition * current_partition
#define AV_NOPTS_VALUE
Undefined timestamp value.
uint64_t previous_partition
int64_t header_byte_count