Result_t
AS_02::MXF::AS02IndexReader::InitFromFile(const Kumu::FileReader& reader, const ASDCP::MXF::RIP& rip, const bool has_header_essence)
{
typedef std::list<Kumu::mem_ptr<ASDCP::MXF::Partition> > body_part_array_t;
body_part_array_t body_part_array;
body_part_array_t::const_iterator body_part_iter;
ASDCP::MXF::Array<ASDCP::MXF::RIP::Pair>::const_iterator i;
Result_t result = m_IndexSegmentData.Capacity(128*Kumu::Kilobyte); // will be grown if needed
ui32_t first_body_sid = 0;
// create a list of body parts and index parts
for ( i = rip.PairArray.begin(); KM_SUCCESS(result) && i != rip.PairArray.end(); ++i )
{
if ( i->BodySID == 0 )
continue;
if ( first_body_sid == 0 )
{
first_body_sid = i->BodySID;
}
else if ( i->BodySID != first_body_sid )
{
DefaultLogSink().Debug("The index assembler is ignoring BodySID %d.\n", i->BodySID);
continue;
}
reader.Seek(i->ByteOffset);
ASDCP::MXF::Partition *this_partition = new ASDCP::MXF::Partition(m_Dict);
assert(this_partition);
result = this_partition->InitFromFile(reader);
if ( KM_FAILURE(result) )
{
delete this_partition;
return result;
}
if ( this_partition->BodySID != i->BodySID )
{
DefaultLogSink().Error("Partition BodySID %d does not match RIP BodySID %d.\n",
this_partition->BodySID, i->BodySID);
}
body_part_array.push_back(0);
body_part_array.back().set(this_partition);
}
if ( body_part_array.empty() )
{
DefaultLogSink().Error("File has no partitions with essence data.\n");
return RESULT_AS02_FORMAT;
}
body_part_iter = body_part_array.begin();
for ( i = rip.PairArray.begin(); KM_SUCCESS(result) && i != rip.PairArray.end(); ++i )
{
reader.Seek(i->ByteOffset);
ASDCP::MXF::Partition plain_part(m_Dict);
result = plain_part.InitFromFile(reader);
if ( KM_FAILURE(result) )
return result;
if ( plain_part.IndexByteCount > 0 )
{
if ( body_part_iter == body_part_array.end() )
{
DefaultLogSink().Error("Index and Body partitions do not match.\n");
break;
}
if ( plain_part.ThisPartition == plain_part.FooterPartition )
{
DefaultLogSink().Warn("File footer partition contains index data.\n");
}
// slurp up the remainder of the partition
ui32_t read_count = 0;
assert (plain_part.IndexByteCount <= 0xFFFFFFFFL);
ui32_t bytes_this_partition = (ui32_t)plain_part.IndexByteCount;
result = m_IndexSegmentData.Capacity(m_IndexSegmentData.Length() + bytes_this_partition);
if ( KM_SUCCESS(result) )
result = reader.Read(m_IndexSegmentData.Data() + m_IndexSegmentData.Length(),
bytes_this_partition, &read_count);
if ( KM_SUCCESS(result) && read_count != bytes_this_partition )
{
DefaultLogSink().Error("Short read of index partition: got %u, expecting %u\n",
read_count, bytes_this_partition);
return RESULT_AS02_FORMAT;
}
if ( KM_SUCCESS(result) )
{
ui64_t current_body_offset = 0;
ui64_t current_ec_offset = 0;
assert(body_part_iter != body_part_array.end());
assert(!body_part_iter->empty());
ASDCP::MXF::Partition *tmp_partition = body_part_iter->get();
if ( has_header_essence && tmp_partition->ThisPartition == 0 )
{
current_body_offset = 0;
current_ec_offset = tmp_partition->HeaderByteCount + tmp_partition->ArchiveSize();
}
else
{
current_body_offset = tmp_partition->BodyOffset;
current_ec_offset += tmp_partition->ThisPartition + tmp_partition->ArchiveSize();
}
result = InitFromBuffer(m_IndexSegmentData.RoData() + m_IndexSegmentData.Length(), bytes_this_partition, current_body_offset, current_ec_offset);
m_IndexSegmentData.Length(m_IndexSegmentData.Length() + bytes_this_partition);
++body_part_iter;
}
}
}
if ( KM_SUCCESS(result) )
{
std::list<InterchangeObject*>::const_iterator ii;
for ( ii = m_PacketList->m_List.begin(); ii != m_PacketList->m_List.end(); ++ii )
{
IndexTableSegment *segment = dynamic_cast<IndexTableSegment*>(*ii);
if ( segment != 0 )
{
m_Duration += segment->IndexDuration;
}
}
}
#if 0
char identbuf[IdentBufferLen];
std::list<InterchangeObject*>::iterator j;
std::vector<ASDCP::MXF::IndexTableSegment::IndexEntry>::iterator k;
ui32_t entry_count = 0;
for ( j = m_PacketList->m_List.begin(); j != m_PacketList->m_List.end(); ++j )
{
assert(*j);
ASDCP::MXF::IndexTableSegment* segment = static_cast<ASDCP::MXF::IndexTableSegment*>(*j);
fprintf(stderr, " --------------------------------------\n");
fprintf(stderr, " IndexEditRate = %d/%d\n", segment->IndexEditRate.Numerator, segment->IndexEditRate.Denominator);
fprintf(stderr, " IndexStartPosition = %s\n", i64sz(segment->IndexStartPosition, identbuf));
fprintf(stderr, " IndexDuration = %s\n", i64sz(segment->IndexDuration, identbuf));
fprintf(stderr, " EditUnitByteCount = %u\n", segment->EditUnitByteCount);
fprintf(stderr, " IndexSID = %u\n", segment->IndexSID);
fprintf(stderr, " BodySID = %u\n", segment->BodySID);
fprintf(stderr, " SliceCount = %hu\n", segment->SliceCount);
fprintf(stderr, " PosTableCount = %hu\n", segment->PosTableCount);
fprintf(stderr, " RtFileOffset = %s\n", i64sz(segment->RtFileOffset, identbuf));
fprintf(stderr, " RtEntryOffset = %s\n", i64sz(segment->RtEntryOffset, identbuf));
fprintf(stderr, " IndexEntryArray:\n");
for ( k = segment->IndexEntryArray.begin(); k != segment->IndexEntryArray.end(); ++k )
{
fprintf(stderr, " 0x%010qx\n", k->StreamOffset);
++entry_count;
}
}
fprintf(stderr, "Actual entries: %d\n", entry_count);
#endif
return result;
}
// TODO: refactor to use InitFromBuffer
ASDCP::Result_t
ASDCP::KLVFilePacket::InitFromFile(const Kumu::FileReader& Reader)
{
ui32_t read_count;
byte_t tmp_data[tmp_read_size];
ui64_t tmp_size;
m_KeyStart = m_ValueStart = 0;
m_KLLength = m_ValueLength = 0;
m_Buffer.Size(0);
Result_t result = Reader.Read(tmp_data, tmp_read_size, &read_count);
if ( ASDCP_FAILURE(result) )
return result;
if ( read_count < (SMPTE_UL_LENGTH + 1) )
{
DefaultLogSink().Error("Short read of Key and Length got %u\n", read_count);
return RESULT_READFAIL;
}
if ( memcmp(tmp_data, SMPTE_UL_START, 4) != 0 )
{
DefaultLogSink().Error("Unexpected UL preamble: %02x.%02x.%02x.%02x\n",
tmp_data[0], tmp_data[1], tmp_data[2], tmp_data[3]);
return RESULT_FAIL;
}
if ( ! Kumu::read_BER(tmp_data + SMPTE_UL_LENGTH, &tmp_size) )
{
DefaultLogSink().Error("BER Length decoding error\n");
return RESULT_FAIL;
}
if ( tmp_size > MAX_KLV_PACKET_LENGTH )
{
Kumu::ui64Printer tmp_size_str(tmp_size);
DefaultLogSink().Error("Packet length %s exceeds internal limit\n", tmp_size_str.c_str());
return RESULT_FAIL;
}
ui32_t remainder = 0;
ui32_t ber_len = Kumu::BER_length(tmp_data + SMPTE_UL_LENGTH);
m_KLLength = SMPTE_UL_LENGTH + ber_len;
assert(tmp_size <= 0xFFFFFFFFL);
m_ValueLength = (ui32_t) tmp_size;
ui32_t packet_length = m_ValueLength + m_KLLength;
result = m_Buffer.Capacity(packet_length);
if ( ASDCP_FAILURE(result) )
return result;
m_KeyStart = m_Buffer.Data();
m_ValueStart = m_Buffer.Data() + m_KLLength;
m_Buffer.Size(packet_length);
// is the whole packet in the tmp buf?
if ( packet_length <= tmp_read_size )
{
assert(packet_length <= read_count);
memcpy(m_Buffer.Data(), tmp_data, packet_length);
if ( (remainder = read_count - packet_length) != 0 )
{
DefaultLogSink().Warn("Repositioning pointer for short packet\n");
Kumu::fpos_t pos = Reader.Tell();
assert(pos > remainder);
result = Reader.Seek(pos - remainder);
}
}
else
{
if ( read_count < tmp_read_size )
{
DefaultLogSink().Error("Short read of packet body, expecting %u, got %u\n",
m_Buffer.Size(), read_count);
return RESULT_READFAIL;
}
memcpy(m_Buffer.Data(), tmp_data, tmp_read_size);
remainder = m_Buffer.Size() - tmp_read_size;
if ( remainder > 0 )
{
result = Reader.Read(m_Buffer.Data() + tmp_read_size, remainder, &read_count);
if ( read_count != remainder )
{
DefaultLogSink().Error("Short read of packet body, expecting %u, got %u\n",
remainder+tmp_read_size, read_count+tmp_read_size);
result = RESULT_READFAIL;
}
}
}
return result;
}
