diff options
| author | Carl Hetherington <cth@carlh.net> | 2012-07-16 19:25:13 +0100 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2012-07-16 19:25:13 +0100 |
| commit | ec1097e8426461b854b38e7b14bc73995c365e0a (patch) | |
| tree | 19c8e41ff4061f48ba23524bc8e38f5398c1f21a /asdcplib/src/MXF.cpp | |
| parent | 7d48446b5efdf795df1ce22d6d9ed3ebe85d3381 (diff) | |
asdcplib 1.9.45
Diffstat (limited to 'asdcplib/src/MXF.cpp')
| -rwxr-xr-x | asdcplib/src/MXF.cpp | 1489 |
1 files changed, 1489 insertions, 0 deletions
diff --git a/asdcplib/src/MXF.cpp b/asdcplib/src/MXF.cpp new file mode 100755 index 00000000..c7091a43 --- /dev/null +++ b/asdcplib/src/MXF.cpp @@ -0,0 +1,1489 @@ +/* +Copyright (c) 2005-2012, John Hurst +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions +are met: +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. +3. The name of the author may not be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR +IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, +INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*! \file MXF.cpp + \version $Id: MXF.cpp,v 1.62 2012/03/05 13:11:47 jhurst Exp $ + \brief MXF objects +*/ + +#include "MXF.h" +#include "Metadata.h" +#include <KM_log.h> + +using Kumu::DefaultLogSink; +using Kumu::GenRandomValue; + +// index segments must be < 64K +// NOTE: this value may too high if advanced index entry elements are used. +const ui32_t CBRIndexEntriesPerSegment = 5000; + +//------------------------------------------------------------------------------------------ +// + +const ui32_t kl_length = ASDCP::SMPTE_UL_LENGTH + ASDCP::MXF_BER_LENGTH; + +// +ASDCP::Result_t +ASDCP::MXF::SeekToRIP(const Kumu::FileReader& Reader) +{ + Kumu::fpos_t end_pos; + + // go to the end - 4 bytes + Result_t result = Reader.Seek(0, Kumu::SP_END); + + if ( ASDCP_SUCCESS(result) ) + result = Reader.Tell(&end_pos); + + if ( ASDCP_SUCCESS(result) + && end_pos < (SMPTE_UL_LENGTH+MXF_BER_LENGTH) ) + result = RESULT_FAIL; // File is smaller than an empty packet! + + if ( ASDCP_SUCCESS(result) ) + result = Reader.Seek(end_pos - 4); + + // get the ui32_t RIP length + ui32_t read_count; + byte_t intbuf[MXF_BER_LENGTH]; + ui32_t rip_size = 0; + + if ( ASDCP_SUCCESS(result) ) + { + result = Reader.Read(intbuf, MXF_BER_LENGTH, &read_count); + + if ( ASDCP_SUCCESS(result) && read_count != 4 ) + result = RESULT_FAIL; + } + + if ( ASDCP_SUCCESS(result) ) + { + rip_size = KM_i32_BE(Kumu::cp2i<ui32_t>(intbuf)); + + if ( rip_size > end_pos ) // RIP can't be bigger than the file + return RESULT_FAIL; + } + + // reposition to start of RIP + if ( ASDCP_SUCCESS(result) ) + result = Reader.Seek(end_pos - rip_size); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::RIP::GetPairBySID(ui32_t SID, Pair& outPair) const +{ + Array<Pair>::const_iterator pi = PairArray.begin(); + for ( ; pi != PairArray.end(); pi++ ) + { + if ( (*pi).BodySID == SID ) + { + outPair = *pi; + return RESULT_OK; + } + } + + return RESULT_FAIL; +} + +// +ASDCP::Result_t +ASDCP::MXF::RIP::InitFromFile(const Kumu::FileReader& Reader) +{ + assert(m_Dict); + Result_t result = KLVFilePacket::InitFromFile(Reader, m_Dict->ul(MDD_RandomIndexMetadata)); + + if ( ASDCP_SUCCESS(result) ) + { + Kumu::MemIOReader MemRDR(m_ValueStart, m_ValueLength - 4); + result = PairArray.Unarchive(&MemRDR) ? RESULT_OK : RESULT_KLV_CODING; + } + + if ( ASDCP_FAILURE(result) ) + DefaultLogSink().Error("Failed to initialize RIP\n"); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::RIP::WriteToFile(Kumu::FileWriter& Writer) +{ + assert(m_Dict); + ASDCP::FrameBuffer Buffer; + ui32_t RIPSize = ( PairArray.size() * (sizeof(ui32_t) + sizeof(ui64_t)) ) + 4; + Result_t result = Buffer.Capacity(RIPSize); + + if ( ASDCP_SUCCESS(result) ) + result = WriteKLToFile(Writer, m_Dict->ul(MDD_RandomIndexMetadata), RIPSize); + + if ( ASDCP_SUCCESS(result) ) + { + result = RESULT_KLV_CODING; + + Kumu::MemIOWriter MemWRT(Buffer.Data(), Buffer.Capacity()); + if ( PairArray.Archive(&MemWRT) ) + if ( MemWRT.WriteUi32BE(RIPSize + 20) ) + { + Buffer.Size(MemWRT.Length()); + result = RESULT_OK; + } + } + + if ( ASDCP_SUCCESS(result) ) + result = Writer.Write(Buffer.RoData(), Buffer.Size()); + + return result; +} + +// +void +ASDCP::MXF::RIP::Dump(FILE* stream) +{ + if ( stream == 0 ) + stream = stderr; + + KLVFilePacket::Dump(stream, *m_Dict, false); + PairArray.Dump(stream, false); +} + +//------------------------------------------------------------------------------------------ +// + +// +class ASDCP::MXF::Partition::h__PacketList +{ +public: + std::list<InterchangeObject*> m_List; + std::map<UUID, InterchangeObject*> m_Map; + + ~h__PacketList() { + while ( ! m_List.empty() ) + { + delete m_List.back(); + m_List.pop_back(); + } + } + + // + void AddPacket(InterchangeObject* ThePacket) // takes ownership + { + assert(ThePacket); + m_Map.insert(std::map<UUID, InterchangeObject*>::value_type(ThePacket->InstanceUID, ThePacket)); + m_List.push_back(ThePacket); + } + + // + Result_t GetMDObjectByID(const UUID& ObjectID, InterchangeObject** Object) + { + ASDCP_TEST_NULL(Object); + + std::map<UUID, InterchangeObject*>::iterator mi = m_Map.find(ObjectID); + + if ( mi == m_Map.end() ) + { + *Object = 0; + return RESULT_FAIL; + } + + *Object = (*mi).second; + return RESULT_OK; + } + + // + Result_t GetMDObjectByType(const byte_t* ObjectID, InterchangeObject** Object) + { + ASDCP_TEST_NULL(ObjectID); + ASDCP_TEST_NULL(Object); + std::list<InterchangeObject*>::iterator li; + *Object = 0; + + for ( li = m_List.begin(); li != m_List.end(); li++ ) + { + if ( (*li)->HasUL(ObjectID) ) + { + *Object = *li; + return RESULT_OK; + } + } + + return RESULT_FAIL; + } + + // + Result_t GetMDObjectsByType(const byte_t* ObjectID, std::list<InterchangeObject*>& ObjectList) + { + ASDCP_TEST_NULL(ObjectID); + std::list<InterchangeObject*>::iterator li; + + for ( li = m_List.begin(); li != m_List.end(); li++ ) + { + if ( (*li)->HasUL(ObjectID) ) + ObjectList.push_back(*li); + } + + return ObjectList.empty() ? RESULT_FAIL : RESULT_OK; + } +}; + +//------------------------------------------------------------------------------------------ +// + + +ASDCP::MXF::Partition::Partition(const Dictionary*& d) : + m_Dict(d), + MajorVersion(1), MinorVersion(2), + KAGSize(1), ThisPartition(0), PreviousPartition(0), + FooterPartition(0), HeaderByteCount(0), IndexByteCount(0), IndexSID(0), + BodyOffset(0), BodySID(0) +{ + m_PacketList = new h__PacketList; +} + +ASDCP::MXF::Partition::~Partition() +{ +} + +// takes ownership +void +ASDCP::MXF::Partition::AddChildObject(InterchangeObject* Object) +{ + assert(Object); + + if ( ! Object->InstanceUID.HasValue() ) + GenRandomValue(Object->InstanceUID); + + m_PacketList->AddPacket(Object); +} + +// +ASDCP::Result_t +ASDCP::MXF::Partition::InitFromFile(const Kumu::FileReader& Reader) +{ + Result_t result = KLVFilePacket::InitFromFile(Reader); + // test the UL + // could be one of several values + if ( ASDCP_SUCCESS(result) ) + result = ASDCP::MXF::Partition::InitFromBuffer(m_ValueStart, m_ValueLength); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Partition::InitFromBuffer(const byte_t* p, ui32_t l) +{ + Kumu::MemIOReader MemRDR(p, l); + Result_t result = RESULT_KLV_CODING; + + if ( MemRDR.ReadUi16BE(&MajorVersion) ) + if ( MemRDR.ReadUi16BE(&MinorVersion) ) + if ( MemRDR.ReadUi32BE(&KAGSize) ) + if ( MemRDR.ReadUi64BE(&ThisPartition) ) + if ( MemRDR.ReadUi64BE(&PreviousPartition) ) + if ( MemRDR.ReadUi64BE(&FooterPartition) ) + if ( MemRDR.ReadUi64BE(&HeaderByteCount) ) + if ( MemRDR.ReadUi64BE(&IndexByteCount) ) + if ( MemRDR.ReadUi32BE(&IndexSID) ) + if ( MemRDR.ReadUi64BE(&BodyOffset) ) + if ( MemRDR.ReadUi32BE(&BodySID) ) + if ( OperationalPattern.Unarchive(&MemRDR) ) + if ( EssenceContainers.Unarchive(&MemRDR) ) + result = RESULT_OK; + + if ( ASDCP_FAILURE(result) ) + DefaultLogSink().Error("Failed to initialize Partition\n"); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Partition::WriteToFile(Kumu::FileWriter& Writer, UL& PartitionLabel) +{ + ASDCP::FrameBuffer Buffer; + Result_t result = Buffer.Capacity(1024); + + if ( ASDCP_SUCCESS(result) ) + { + Kumu::MemIOWriter MemWRT(Buffer.Data(), Buffer.Capacity()); + result = RESULT_KLV_CODING; + if ( MemWRT.WriteUi16BE(MajorVersion) ) + if ( MemWRT.WriteUi16BE(MinorVersion) ) + if ( MemWRT.WriteUi32BE(KAGSize) ) + if ( MemWRT.WriteUi64BE(ThisPartition) ) + if ( MemWRT.WriteUi64BE(PreviousPartition) ) + if ( MemWRT.WriteUi64BE(FooterPartition) ) + if ( MemWRT.WriteUi64BE(HeaderByteCount) ) + if ( MemWRT.WriteUi64BE(IndexByteCount) ) + if ( MemWRT.WriteUi32BE(IndexSID) ) + if ( MemWRT.WriteUi64BE(BodyOffset) ) + if ( MemWRT.WriteUi32BE(BodySID) ) + if ( OperationalPattern.Archive(&MemWRT) ) + if ( EssenceContainers.Archive(&MemWRT) ) + { + Buffer.Size(MemWRT.Length()); + result = RESULT_OK; + } + } + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t write_count; + result = WriteKLToFile(Writer, PartitionLabel.Value(), Buffer.Size()); + + if ( ASDCP_SUCCESS(result) ) + result = Writer.Write(Buffer.RoData(), Buffer.Size(), &write_count); + } + + return result; +} + +// +ui32_t +ASDCP::MXF::Partition::ArchiveSize() +{ + return ( kl_length + + sizeof(ui16_t) + sizeof(ui16_t) + + sizeof(ui32_t) + + sizeof(ui64_t) + sizeof(ui64_t) + sizeof(ui64_t) + sizeof(ui64_t) + sizeof(ui64_t) + + sizeof(ui32_t) + + sizeof(ui64_t) + + sizeof(ui32_t) + + SMPTE_UL_LENGTH + + sizeof(ui32_t) + sizeof(ui32_t) + ( UUIDlen * EssenceContainers.size() ) ); +} + +// +void +ASDCP::MXF::Partition::Dump(FILE* stream) +{ + char identbuf[IdentBufferLen]; + + if ( stream == 0 ) + stream = stderr; + + KLVFilePacket::Dump(stream, *m_Dict, false); + fprintf(stream, " MajorVersion = %hu\n", MajorVersion); + fprintf(stream, " MinorVersion = %hu\n", MinorVersion); + fprintf(stream, " KAGSize = %u\n", KAGSize); + fprintf(stream, " ThisPartition = %s\n", ui64sz(ThisPartition, identbuf)); + fprintf(stream, " PreviousPartition = %s\n", ui64sz(PreviousPartition, identbuf)); + fprintf(stream, " FooterPartition = %s\n", ui64sz(FooterPartition, identbuf)); + fprintf(stream, " HeaderByteCount = %s\n", ui64sz(HeaderByteCount, identbuf)); + fprintf(stream, " IndexByteCount = %s\n", ui64sz(IndexByteCount, identbuf)); + fprintf(stream, " IndexSID = %u\n", IndexSID); + fprintf(stream, " BodyOffset = %s\n", ui64sz(BodyOffset, identbuf)); + fprintf(stream, " BodySID = %u\n", BodySID); + fprintf(stream, " OperationalPattern = %s\n", OperationalPattern.EncodeString(identbuf, IdentBufferLen)); + fputs("Essence Containers:\n", stream); EssenceContainers.Dump(stream); +} + + +//------------------------------------------------------------------------------------------ +// + +class ASDCP::MXF::Primer::h__PrimerLookup : public std::map<UL, TagValue> +{ +public: + void InitWithBatch(ASDCP::MXF::Batch<ASDCP::MXF::Primer::LocalTagEntry>& Batch) + { + ASDCP::MXF::Batch<ASDCP::MXF::Primer::LocalTagEntry>::iterator i = Batch.begin(); + + for ( ; i != Batch.end(); i++ ) + insert(std::map<UL, TagValue>::value_type((*i).UL, (*i).Tag)); + } +}; + + +// +ASDCP::MXF::Primer::Primer(const Dictionary*& d) : m_LocalTag(0xff), m_Dict(d) { + m_UL = m_Dict->ul(MDD_Primer); +} + +// +ASDCP::MXF::Primer::~Primer() {} + +// +void +ASDCP::MXF::Primer::ClearTagList() +{ + LocalTagEntryBatch.clear(); + m_Lookup = new h__PrimerLookup; +} + +// +ASDCP::Result_t +ASDCP::MXF::Primer::InitFromBuffer(const byte_t* p, ui32_t l) +{ + assert(m_Dict); + Result_t result = KLVPacket::InitFromBuffer(p, l, m_Dict->ul(MDD_Primer)); + + if ( ASDCP_SUCCESS(result) ) + { + Kumu::MemIOReader MemRDR(m_ValueStart, m_ValueLength); + result = LocalTagEntryBatch.Unarchive(&MemRDR) ? RESULT_OK : RESULT_KLV_CODING; + } + + if ( ASDCP_SUCCESS(result) ) + { + m_Lookup = new h__PrimerLookup; + m_Lookup->InitWithBatch(LocalTagEntryBatch); + } + + if ( ASDCP_FAILURE(result) ) + DefaultLogSink().Error("Failed to initialize Primer\n"); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Primer::WriteToFile(Kumu::FileWriter& Writer) +{ + ASDCP::FrameBuffer Buffer; + Result_t result = Buffer.Capacity(128*1024); + + if ( ASDCP_SUCCESS(result) ) + result = WriteToBuffer(Buffer); + + if ( ASDCP_SUCCESS(result) ) + result = Writer.Write(Buffer.RoData(), Buffer.Size()); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Primer::WriteToBuffer(ASDCP::FrameBuffer& Buffer) +{ + assert(m_Dict); + ASDCP::FrameBuffer LocalTagBuffer; + Kumu::MemIOWriter MemWRT(Buffer.Data() + kl_length, Buffer.Capacity() - kl_length); + Result_t result = LocalTagEntryBatch.Archive(&MemWRT) ? RESULT_OK : RESULT_KLV_CODING; + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t packet_length = MemWRT.Length(); + result = WriteKLToBuffer(Buffer, packet_length); + + if ( ASDCP_SUCCESS(result) ) + Buffer.Size(Buffer.Size() + packet_length); + } + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Primer::InsertTag(const MDDEntry& Entry, ASDCP::TagValue& Tag) +{ + assert(m_Lookup); + UL TestUL(Entry.ul); + std::map<UL, TagValue>::iterator i = m_Lookup->find(TestUL); + + if ( i == m_Lookup->end() ) + { + if ( Entry.tag.a == 0 && Entry.tag.b == 0 ) + { + Tag.a = 0xff; + Tag.b = m_LocalTag--; + } + else + { + Tag.a = Entry.tag.a; + Tag.b = Entry.tag.b; + } + + LocalTagEntry TmpEntry; + TmpEntry.UL = TestUL; + TmpEntry.Tag = Tag; + + LocalTagEntryBatch.push_back(TmpEntry); + m_Lookup->insert(std::map<UL, TagValue>::value_type(TmpEntry.UL, TmpEntry.Tag)); + } + else + { + Tag = (*i).second; + } + + return RESULT_OK; +} + +// +ASDCP::Result_t +ASDCP::MXF::Primer::TagForKey(const ASDCP::UL& Key, ASDCP::TagValue& Tag) +{ + assert(m_Lookup); + if ( m_Lookup.empty() ) + { + DefaultLogSink().Error("Primer lookup is empty\n"); + return RESULT_FAIL; + } + + std::map<UL, TagValue>::iterator i = m_Lookup->find(Key); + + if ( i == m_Lookup->end() ) + return RESULT_FALSE; + + Tag = (*i).second; + return RESULT_OK; +} + +// +void +ASDCP::MXF::Primer::Dump(FILE* stream) +{ + assert(m_Dict); + char identbuf[IdentBufferLen]; + + if ( stream == 0 ) + stream = stderr; + + KLVPacket::Dump(stream, *m_Dict, false); + fprintf(stream, "Primer: %u %s\n", + (ui32_t)LocalTagEntryBatch.size(), + ( LocalTagEntryBatch.size() == 1 ? "entry" : "entries" )); + + Batch<LocalTagEntry>::iterator i = LocalTagEntryBatch.begin(); + for ( ; i != LocalTagEntryBatch.end(); i++ ) + { + const MDDEntry* Entry = m_Dict->FindUL((*i).UL.Value()); + fprintf(stream, " %s %s\n", (*i).EncodeString(identbuf, IdentBufferLen), (Entry ? Entry->name : "Unknown")); + } +} + + +//------------------------------------------------------------------------------------------ +// + +// +ASDCP::MXF::Preface::Preface(const Dictionary*& d) : + InterchangeObject(d), m_Dict(d), Version(258), ObjectModelVersion(0) +{ + assert(m_Dict); + m_UL = m_Dict->Type(MDD_Preface).ul; +} + +// +void +ASDCP::MXF::Preface::Copy(const Preface& rhs) +{ + InterchangeObject::Copy(rhs); + + LastModifiedDate = rhs.LastModifiedDate; + Version = rhs.Version; + ObjectModelVersion = rhs.ObjectModelVersion; + PrimaryPackage = rhs.PrimaryPackage; + Identifications = rhs.Identifications; + ContentStorage = rhs.ContentStorage; + OperationalPattern = rhs.OperationalPattern; + EssenceContainers = rhs.EssenceContainers; + DMSchemes = rhs.DMSchemes; +} + +// +ASDCP::Result_t +ASDCP::MXF::Preface::InitFromTLVSet(TLVReader& TLVSet) +{ + Result_t result = InterchangeObject::InitFromTLVSet(TLVSet); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, LastModifiedDate)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi16(OBJ_READ_ARGS(Preface, Version)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadUi32(OBJ_READ_ARGS(Preface, ObjectModelVersion)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, PrimaryPackage)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, Identifications)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, ContentStorage)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, OperationalPattern)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, EssenceContainers)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.ReadObject(OBJ_READ_ARGS(Preface, DMSchemes)); + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Preface::WriteToTLVSet(TLVWriter& TLVSet) +{ + Result_t result = InterchangeObject::WriteToTLVSet(TLVSet); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, LastModifiedDate)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi16(OBJ_WRITE_ARGS(Preface, Version)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteUi32(OBJ_WRITE_ARGS(Preface, ObjectModelVersion)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, PrimaryPackage)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, Identifications)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, ContentStorage)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, OperationalPattern)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, EssenceContainers)); + if ( ASDCP_SUCCESS(result) ) result = TLVSet.WriteObject(OBJ_WRITE_ARGS(Preface, DMSchemes)); + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::Preface::InitFromBuffer(const byte_t* p, ui32_t l) +{ + return InterchangeObject::InitFromBuffer(p, l); +} + +// +ASDCP::Result_t +ASDCP::MXF::Preface::WriteToBuffer(ASDCP::FrameBuffer& Buffer) +{ + return InterchangeObject::WriteToBuffer(Buffer); +} + +// +void +ASDCP::MXF::Preface::Dump(FILE* stream) +{ + char identbuf[IdentBufferLen]; + + if ( stream == 0 ) + stream = stderr; + + InterchangeObject::Dump(stream); + fprintf(stream, " %22s = %s\n", "LastModifiedDate", LastModifiedDate.EncodeString(identbuf, IdentBufferLen)); + fprintf(stream, " %22s = %hu\n", "Version", Version); + fprintf(stream, " %22s = %u\n", "ObjectModelVersion", ObjectModelVersion); + fprintf(stream, " %22s = %s\n", "PrimaryPackage", PrimaryPackage.EncodeHex(identbuf, IdentBufferLen)); + fprintf(stream, " %22s:\n", "Identifications"); Identifications.Dump(stream); + fprintf(stream, " %22s = %s\n", "ContentStorage", ContentStorage.EncodeHex(identbuf, IdentBufferLen)); + fprintf(stream, " %22s = %s\n", "OperationalPattern", OperationalPattern.EncodeString(identbuf, IdentBufferLen)); + fprintf(stream, " %22s:\n", "EssenceContainers"); EssenceContainers.Dump(stream); + fprintf(stream, " %22s:\n", "DMSchemes"); DMSchemes.Dump(stream); +} + +//------------------------------------------------------------------------------------------ +// + +ASDCP::MXF::OPAtomHeader::OPAtomHeader(const Dictionary*& d) : Partition(d), m_Dict(d), m_RIP(d), m_Primer(d), m_Preface(0), m_HasRIP(false) {} +ASDCP::MXF::OPAtomHeader::~OPAtomHeader() {} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::InitFromFile(const Kumu::FileReader& Reader) +{ + m_HasRIP = false; + Result_t result = SeekToRIP(Reader); + + if ( ASDCP_SUCCESS(result) ) + { + result = m_RIP.InitFromFile(Reader); + ui32_t test_s = m_RIP.PairArray.size(); + + if ( ASDCP_FAILURE(result) ) + { + DefaultLogSink().Error("File contains no RIP\n"); + result = RESULT_OK; + } + else if ( test_s == 0 ) + { + DefaultLogSink().Error("RIP contains no Pairs.\n"); + result = RESULT_FORMAT; + } + else + { + if ( test_s < 2 ) + { + // OP-Atom states that there will be either two or three partitions: + // one closed header and one closed footer with an optional body + // SMPTE 429-5 files may have many partitions, see SMPTE 410M + DefaultLogSink().Warn("RIP count is less than 2: %u\n", test_s); + } + + m_HasRIP = true; + + if ( m_RIP.PairArray.front().ByteOffset != 0 ) + { + DefaultLogSink().Error("First Partition in RIP is not at offset 0.\n"); + result = RESULT_FORMAT; + } + } + } + + if ( ASDCP_SUCCESS(result) ) + result = Reader.Seek(0); + + if ( ASDCP_SUCCESS(result) ) + result = Partition::InitFromFile(Reader); // test UL and OP + + if ( ASDCP_FAILURE(result) ) + return result; + + // is it really OP-Atom? + assert(m_Dict); + UL OPAtomUL(SMPTE_390_OPAtom_Entry().ul); + UL InteropOPAtomUL(MXFInterop_OPAtom_Entry().ul); + + if ( OperationalPattern.ExactMatch(OPAtomUL) ) // SMPTE + { + if ( m_Dict == &DefaultCompositeDict() ) + m_Dict = &DefaultSMPTEDict(); + } + else if ( OperationalPattern.ExactMatch(InteropOPAtomUL) ) // Interop + { + if ( m_Dict == &DefaultCompositeDict() ) + m_Dict = &DefaultInteropDict(); + } + else + { + char strbuf[IdentBufferLen]; + const MDDEntry* Entry = m_Dict->FindUL(OperationalPattern.Value()); + if ( Entry == 0 ) + DefaultLogSink().Warn("Operational pattern is not OP-Atom: %s\n", + OperationalPattern.EncodeString(strbuf, IdentBufferLen)); + else + DefaultLogSink().Warn("Operational pattern is not OP-Atom: %s\n", Entry->name); + } + + // slurp up the remainder of the header + if ( HeaderByteCount < 1024 ) + DefaultLogSink().Warn("Improbably small HeaderByteCount value: %u\n", HeaderByteCount); + + assert (HeaderByteCount <= 0xFFFFFFFFL); + result = m_Buffer.Capacity((ui32_t) HeaderByteCount); + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t read_count; + result = Reader.Read(m_Buffer.Data(), m_Buffer.Capacity(), &read_count); + + if ( ASDCP_FAILURE(result) ) + return result; + + if ( read_count != m_Buffer.Capacity() ) + { + DefaultLogSink().Error("Short read of OP-Atom header metadata; wanted %u, got %u\n", + m_Buffer.Capacity(), read_count); + return RESULT_KLV_CODING; + } + } + + if ( ASDCP_SUCCESS(result) ) + result = InitFromBuffer(m_Buffer.RoData(), m_Buffer.Capacity()); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::InitFromPartitionBuffer(const byte_t* p, ui32_t l) +{ + Result_t result = KLVPacket::InitFromBuffer(p, l); + + if ( ASDCP_SUCCESS(result) ) + result = Partition::InitFromBuffer(m_ValueStart, m_ValueLength); // test UL and OP + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t pp_len = KLVPacket::PacketLength(); + result = InitFromBuffer(p + pp_len, l - pp_len); + } + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::InitFromBuffer(const byte_t* p, ui32_t l) +{ + assert(m_Dict); + Result_t result = RESULT_OK; + const byte_t* end_p = p + l; + + while ( ASDCP_SUCCESS(result) && p < end_p ) + { + // parse the packets and index them by uid, discard KLVFill items + InterchangeObject* object = CreateObject(m_Dict, p); + assert(object); + + object->m_Lookup = &m_Primer; + result = object->InitFromBuffer(p, end_p - p); + const byte_t* redo_p = p; + p += object->PacketLength(); + // hexdump(p, object->PacketLength()); + + if ( ASDCP_SUCCESS(result) ) + { + if ( object->IsA(m_Dict->ul(MDD_KLVFill)) ) + { + delete object; + } + else if ( object->IsA(m_Dict->ul(MDD_Primer)) ) // TODO: only one primer should be found + { + delete object; + result = m_Primer.InitFromBuffer(redo_p, end_p - redo_p); + } + else + { + m_PacketList->AddPacket(object); // takes ownership + + if ( object->IsA(m_Dict->ul(MDD_Preface)) && m_Preface == 0 ) + m_Preface = (Preface*)object; + } + } + else + { + DefaultLogSink().Error("Error initializing packet\n"); + delete object; + } + } + + return result; +} + +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::GetMDObjectByID(const UUID& ObjectID, InterchangeObject** Object) +{ + return m_PacketList->GetMDObjectByID(ObjectID, Object); +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::GetMDObjectByType(const byte_t* ObjectID, InterchangeObject** Object) +{ + InterchangeObject* TmpObject; + + if ( Object == 0 ) + Object = &TmpObject; + + return m_PacketList->GetMDObjectByType(ObjectID, Object); +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::GetMDObjectsByType(const byte_t* ObjectID, std::list<InterchangeObject*>& ObjectList) +{ + return m_PacketList->GetMDObjectsByType(ObjectID, ObjectList); +} + +// +ASDCP::MXF::Identification* +ASDCP::MXF::OPAtomHeader::GetIdentification() +{ + InterchangeObject* Object; + + if ( ASDCP_SUCCESS(GetMDObjectByType(OBJ_TYPE_ARGS(Identification), &Object)) ) + return (Identification*)Object; + + return 0; +} + +// +ASDCP::MXF::SourcePackage* +ASDCP::MXF::OPAtomHeader::GetSourcePackage() +{ + InterchangeObject* Object; + + if ( ASDCP_SUCCESS(GetMDObjectByType(OBJ_TYPE_ARGS(SourcePackage), &Object)) ) + return (SourcePackage*)Object; + + return 0; +} + +// +ASDCP::MXF::RIP& +ASDCP::MXF::OPAtomHeader::GetRIP() { return m_RIP; } + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomHeader::WriteToFile(Kumu::FileWriter& Writer, ui32_t HeaderSize) +{ + assert(m_Dict); + if ( m_Preface == 0 ) + return RESULT_STATE; + + if ( HeaderSize < 4096 ) + { + DefaultLogSink().Error("HeaderSize %u is too small. Must be >= 4096\n", HeaderSize); + return RESULT_FAIL; + } + + ASDCP::FrameBuffer HeaderBuffer; + HeaderByteCount = HeaderSize - ArchiveSize(); + assert (HeaderByteCount <= 0xFFFFFFFFL); + Result_t result = HeaderBuffer.Capacity((ui32_t) HeaderByteCount); + m_Preface->m_Lookup = &m_Primer; + + std::list<InterchangeObject*>::iterator pl_i = m_PacketList->m_List.begin(); + for ( ; pl_i != m_PacketList->m_List.end() && ASDCP_SUCCESS(result); pl_i++ ) + { + InterchangeObject* object = *pl_i; + object->m_Lookup = &m_Primer; + + ASDCP::FrameBuffer WriteWrapper; + WriteWrapper.SetData(HeaderBuffer.Data() + HeaderBuffer.Size(), + HeaderBuffer.Capacity() - HeaderBuffer.Size()); + result = object->WriteToBuffer(WriteWrapper); + HeaderBuffer.Size(HeaderBuffer.Size() + WriteWrapper.Size()); + } + + if ( ASDCP_SUCCESS(result) ) + { + UL TmpUL(m_Dict->ul(MDD_ClosedCompleteHeader)); + result = Partition::WriteToFile(Writer, TmpUL); + } + + if ( ASDCP_SUCCESS(result) ) + result = m_Primer.WriteToFile(Writer); + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t write_count; + Writer.Write(HeaderBuffer.RoData(), HeaderBuffer.Size(), &write_count); + assert(write_count == HeaderBuffer.Size()); + } + + // KLV Fill + if ( ASDCP_SUCCESS(result) ) + { + Kumu::fpos_t pos = Writer.Tell(); + + if ( pos > (Kumu::fpos_t)HeaderByteCount ) + { + char intbuf[IntBufferLen]; + DefaultLogSink().Error("Header size %s exceeds specified value %u\n", + ui64sz(pos, intbuf), + HeaderSize); + return RESULT_FAIL; + } + + ASDCP::FrameBuffer NilBuf; + ui32_t klv_fill_length = HeaderSize - (ui32_t)pos; + + if ( klv_fill_length < kl_length ) + { + DefaultLogSink().Error("Remaining region too small for KLV Fill header\n"); + return RESULT_FAIL; + } + + klv_fill_length -= kl_length; + result = WriteKLToFile(Writer, m_Dict->ul(MDD_KLVFill), klv_fill_length); + + if ( ASDCP_SUCCESS(result) ) + result = NilBuf.Capacity(klv_fill_length); + + if ( ASDCP_SUCCESS(result) ) + { + memset(NilBuf.Data(), 0, klv_fill_length); + ui32_t write_count; + Writer.Write(NilBuf.RoData(), klv_fill_length, &write_count); + assert(write_count == klv_fill_length); + } + } + + return result; +} + +// +void +ASDCP::MXF::OPAtomHeader::Dump(FILE* stream) +{ + if ( stream == 0 ) + stream = stderr; + + Partition::Dump(stream); + m_Primer.Dump(stream); + + if ( m_Preface == 0 ) + fputs("No Preface loaded\n", stream); + + std::list<InterchangeObject*>::iterator i = m_PacketList->m_List.begin(); + for ( ; i != m_PacketList->m_List.end(); i++ ) + (*i)->Dump(stream); +} + +//------------------------------------------------------------------------------------------ +// + +ASDCP::MXF::OPAtomIndexFooter::OPAtomIndexFooter(const Dictionary*& d) : + Partition(d), m_Dict(d), + m_CurrentSegment(0), m_BytesPerEditUnit(0), m_BodySID(0), + m_ECOffset(0), m_Lookup(0) +{ + BodySID = 0; + IndexSID = 129; +} + +ASDCP::MXF::OPAtomIndexFooter::~OPAtomIndexFooter() {} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::InitFromFile(const Kumu::FileReader& Reader) +{ + Result_t result = Partition::InitFromFile(Reader); // test UL and OP + + // slurp up the remainder of the footer + ui32_t read_count; + + if ( ASDCP_SUCCESS(result) ) + { + assert (IndexByteCount <= 0xFFFFFFFFL); + result = m_Buffer.Capacity((ui32_t) IndexByteCount); + } + + if ( ASDCP_SUCCESS(result) ) + result = Reader.Read(m_Buffer.Data(), m_Buffer.Capacity(), &read_count); + + if ( ASDCP_SUCCESS(result) && read_count != m_Buffer.Capacity() ) + { + DefaultLogSink().Error("Short read of footer partition: got %u, expecting %u\n", + read_count, m_Buffer.Capacity()); + return RESULT_FAIL; + } + + if ( ASDCP_SUCCESS(result) ) + result = InitFromBuffer(m_Buffer.RoData(), m_Buffer.Capacity()); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::InitFromPartitionBuffer(const byte_t* p, ui32_t l) +{ + Result_t result = KLVPacket::InitFromBuffer(p, l); + + if ( ASDCP_SUCCESS(result) ) + result = Partition::InitFromBuffer(m_ValueStart, m_ValueLength); // test UL and OP + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t pp_len = KLVPacket::PacketLength(); + result = InitFromBuffer(p + pp_len, l - pp_len); + } + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::InitFromBuffer(const byte_t* p, ui32_t l) +{ + Result_t result = RESULT_OK; + const byte_t* end_p = p + l; + + while ( ASDCP_SUCCESS(result) && p < end_p ) + { + // parse the packets and index them by uid, discard KLVFill items + InterchangeObject* object = CreateObject(m_Dict, p); + assert(object); + + object->m_Lookup = m_Lookup; + result = object->InitFromBuffer(p, end_p - p); + p += object->PacketLength(); + + if ( ASDCP_SUCCESS(result) ) + { + m_PacketList->AddPacket(object); // takes ownership + } + else + { + DefaultLogSink().Error("Error initializing packet\n"); + delete object; + } + } + + if ( ASDCP_FAILURE(result) ) + DefaultLogSink().Error("Failed to initialize OPAtomIndexFooter\n"); + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::WriteToFile(Kumu::FileWriter& Writer, ui64_t duration) +{ + assert(m_Dict); + ASDCP::FrameBuffer FooterBuffer; + ui32_t footer_size = m_PacketList->m_List.size() * MaxIndexSegmentSize; // segment-count * max-segment-size + Result_t result = FooterBuffer.Capacity(footer_size); + ui32_t iseg_count = 0; + + if ( m_CurrentSegment != 0 ) + { + m_CurrentSegment->IndexDuration = m_CurrentSegment->IndexEntryArray.size(); + m_CurrentSegment = 0; + } + + std::list<InterchangeObject*>::iterator pl_i = m_PacketList->m_List.begin(); + for ( ; pl_i != m_PacketList->m_List.end() && ASDCP_SUCCESS(result); pl_i++ ) + { + if ( (*pl_i)->IsA(OBJ_TYPE_ARGS(IndexTableSegment)) ) + { + iseg_count++; + IndexTableSegment* Segment = (IndexTableSegment*)(*pl_i); + + if ( m_BytesPerEditUnit != 0 ) + { + if ( iseg_count != 1 ) + return RESULT_STATE; + + Segment->IndexDuration = duration; + } + } + + InterchangeObject* object = *pl_i; + object->m_Lookup = m_Lookup; + + ASDCP::FrameBuffer WriteWrapper; + WriteWrapper.SetData(FooterBuffer.Data() + FooterBuffer.Size(), + FooterBuffer.Capacity() - FooterBuffer.Size()); + result = object->WriteToBuffer(WriteWrapper); + FooterBuffer.Size(FooterBuffer.Size() + WriteWrapper.Size()); + } + + if ( ASDCP_SUCCESS(result) ) + { + IndexByteCount = FooterBuffer.Size(); + UL FooterUL(m_Dict->ul(MDD_CompleteFooter)); + result = Partition::WriteToFile(Writer, FooterUL); + } + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t write_count = 0; + result = Writer.Write(FooterBuffer.RoData(), FooterBuffer.Size(), &write_count); + assert(write_count == FooterBuffer.Size()); + } + + return result; +} + +// +void +ASDCP::MXF::OPAtomIndexFooter::Dump(FILE* stream) +{ + if ( stream == 0 ) + stream = stderr; + + Partition::Dump(stream); + + std::list<InterchangeObject*>::iterator i = m_PacketList->m_List.begin(); + for ( ; i != m_PacketList->m_List.end(); i++ ) + (*i)->Dump(stream); +} + +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::GetMDObjectByID(const UUID& ObjectID, InterchangeObject** Object) +{ + return m_PacketList->GetMDObjectByID(ObjectID, Object); +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::GetMDObjectByType(const byte_t* ObjectID, InterchangeObject** Object) +{ + InterchangeObject* TmpObject; + + if ( Object == 0 ) + Object = &TmpObject; + + return m_PacketList->GetMDObjectByType(ObjectID, Object); +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::GetMDObjectsByType(const byte_t* ObjectID, std::list<InterchangeObject*>& ObjectList) +{ + return m_PacketList->GetMDObjectsByType(ObjectID, ObjectList); +} + +// +ASDCP::Result_t +ASDCP::MXF::OPAtomIndexFooter::Lookup(ui32_t frame_num, IndexTableSegment::IndexEntry& Entry) const +{ + std::list<InterchangeObject*>::iterator li; + for ( li = m_PacketList->m_List.begin(); li != m_PacketList->m_List.end(); li++ ) + { + if ( (*li)->IsA(OBJ_TYPE_ARGS(IndexTableSegment)) ) + { + IndexTableSegment* Segment = (IndexTableSegment*)(*li); + ui64_t start_pos = Segment->IndexStartPosition; + + if ( Segment->EditUnitByteCount > 0 ) + { + if ( m_PacketList->m_List.size() > 1 ) + DefaultLogSink().Error("Unexpected multiple IndexTableSegment in CBR file\n"); + + if ( ! Segment->IndexEntryArray.empty() ) + DefaultLogSink().Error("Unexpected IndexEntryArray contents in CBR file\n"); + + Entry.StreamOffset = (ui64_t)frame_num * Segment->EditUnitByteCount; + return RESULT_OK; + } + else if ( (ui64_t)frame_num >= start_pos + && (ui64_t)frame_num < (start_pos + Segment->IndexDuration) ) + { + ui64_t tmp = frame_num - start_pos; + assert(tmp <= 0xFFFFFFFFL); + Entry = Segment->IndexEntryArray[(ui32_t) tmp]; + return RESULT_OK; + } + } + } + + return RESULT_FAIL; +} + +// +void +ASDCP::MXF::OPAtomIndexFooter::SetIndexParamsCBR(IPrimerLookup* lookup, ui32_t size, const Rational& Rate) +{ + assert(lookup); + m_Lookup = lookup; + m_BytesPerEditUnit = size; + m_EditRate = Rate; + + IndexTableSegment* Index = new IndexTableSegment(m_Dict); + AddChildObject(Index); + Index->EditUnitByteCount = m_BytesPerEditUnit; + Index->IndexEditRate = Rate; +} + +// +void +ASDCP::MXF::OPAtomIndexFooter::SetIndexParamsVBR(IPrimerLookup* lookup, const Rational& Rate, Kumu::fpos_t offset) +{ + assert(lookup); + m_Lookup = lookup; + m_BytesPerEditUnit = 0; + m_EditRate = Rate; + m_ECOffset = offset; +} + +// +void +ASDCP::MXF::OPAtomIndexFooter::PushIndexEntry(const IndexTableSegment::IndexEntry& Entry) +{ + if ( m_BytesPerEditUnit != 0 ) // are we CBR? that's bad + { + DefaultLogSink().Error("Call to PushIndexEntry() failed: index is CBR\n"); + return; + } + + // do we have an available segment? + if ( m_CurrentSegment == 0 ) + { // no, set up a new segment + m_CurrentSegment = new IndexTableSegment(m_Dict); + assert(m_CurrentSegment); + AddChildObject(m_CurrentSegment); + m_CurrentSegment->DeltaEntryArray.push_back(IndexTableSegment::DeltaEntry()); + m_CurrentSegment->IndexEditRate = m_EditRate; + m_CurrentSegment->IndexStartPosition = 0; + } + else if ( m_CurrentSegment->IndexEntryArray.size() >= CBRIndexEntriesPerSegment ) + { // no, this one is full, start another + m_CurrentSegment->IndexDuration = m_CurrentSegment->IndexEntryArray.size(); + ui64_t StartPosition = m_CurrentSegment->IndexStartPosition + m_CurrentSegment->IndexDuration; + + m_CurrentSegment = new IndexTableSegment(m_Dict); + assert(m_CurrentSegment); + AddChildObject(m_CurrentSegment); + m_CurrentSegment->DeltaEntryArray.push_back(IndexTableSegment::DeltaEntry()); + m_CurrentSegment->IndexEditRate = m_EditRate; + m_CurrentSegment->IndexStartPosition = StartPosition; + } + + m_CurrentSegment->IndexEntryArray.push_back(Entry); +} + +//------------------------------------------------------------------------------------------ +// + +// +void +ASDCP::MXF::InterchangeObject::Copy(const InterchangeObject& rhs) +{ + m_UL = rhs.m_UL; + InstanceUID = rhs.InstanceUID; + GenerationUID = rhs.GenerationUID; +} + +// +ASDCP::Result_t +ASDCP::MXF::InterchangeObject::InitFromTLVSet(TLVReader& TLVSet) +{ + Result_t result = TLVSet.ReadObject(OBJ_READ_ARGS(InterchangeObject, InstanceUID)); + if ( ASDCP_SUCCESS(result) ) + result = TLVSet.ReadObject(OBJ_READ_ARGS(GenerationInterchangeObject, GenerationUID)); + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::InterchangeObject::WriteToTLVSet(TLVWriter& TLVSet) +{ + Result_t result = TLVSet.WriteObject(OBJ_WRITE_ARGS(InterchangeObject, InstanceUID)); + if ( ASDCP_SUCCESS(result) ) + result = TLVSet.WriteObject(OBJ_WRITE_ARGS(GenerationInterchangeObject, GenerationUID)); + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::InterchangeObject::InitFromBuffer(const byte_t* p, ui32_t l) +{ + ASDCP_TEST_NULL(p); + Result_t result = RESULT_FALSE; + + if ( m_UL.HasValue() ) + { + result = KLVPacket::InitFromBuffer(p, l, m_UL); + + if ( ASDCP_SUCCESS(result) ) + { + TLVReader MemRDR(m_ValueStart, m_ValueLength, m_Lookup); + result = InitFromTLVSet(MemRDR); + } + } + else + { + result = KLVPacket::InitFromBuffer(p, l); + } + + return result; +} + +// +ASDCP::Result_t +ASDCP::MXF::InterchangeObject::WriteToBuffer(ASDCP::FrameBuffer& Buffer) +{ + if ( ! m_UL.HasValue() ) + return RESULT_STATE; + + TLVWriter MemWRT(Buffer.Data() + kl_length, Buffer.Capacity() - kl_length, m_Lookup); + Result_t result = WriteToTLVSet(MemWRT); + + if ( ASDCP_SUCCESS(result) ) + { + ui32_t packet_length = MemWRT.Length(); + result = WriteKLToBuffer(Buffer, packet_length); + + if ( ASDCP_SUCCESS(result) ) + Buffer.Size(Buffer.Size() + packet_length); + } + + return result; +} + +// +void +ASDCP::MXF::InterchangeObject::Dump(FILE* stream) +{ + char identbuf[IdentBufferLen]; + + fputc('\n', stream); + KLVPacket::Dump(stream, *m_Dict, false); + fprintf(stream, " InstanceUID = %s\n", InstanceUID.EncodeHex(identbuf, IdentBufferLen)); + fprintf(stream, " GenerationUID = %s\n", GenerationUID.EncodeHex(identbuf, IdentBufferLen)); +} + +// +bool +ASDCP::MXF::InterchangeObject::IsA(const byte_t* label) +{ + if ( m_KLLength == 0 ) + return false; + + return ( memcmp(label, m_KeyStart, SMPTE_UL_LENGTH) == 0 ); +} + + +//------------------------------------------------------------------------------------------ + + +typedef std::map<ASDCP::UL, ASDCP::MXF::MXFObjectFactory_t>FactoryMap_t; +typedef FactoryMap_t::iterator FLi_t; + +// +class FactoryList : public FactoryMap_t +{ + Kumu::Mutex m_Lock; + +public: + FactoryList() {} + ~FactoryList() {} + + bool Empty() { + Kumu::AutoMutex BlockLock(m_Lock); + return empty(); + } + + FLi_t Find(const byte_t* label) { + Kumu::AutoMutex BlockLock(m_Lock); + return find(label); + } + + FLi_t End() { + Kumu::AutoMutex BlockLock(m_Lock); + return end(); + } + + void Insert(ASDCP::UL label, ASDCP::MXF::MXFObjectFactory_t factory) { + Kumu::AutoMutex BlockLock(m_Lock); + insert(FactoryList::value_type(label, factory)); + } +}; + +// +static FactoryList s_FactoryList; +static Kumu::Mutex s_InitLock; +static bool s_TypesInit = false; + + +// +void +ASDCP::MXF::SetObjectFactory(ASDCP::UL label, ASDCP::MXF::MXFObjectFactory_t factory) +{ + s_FactoryList.Insert(label, factory); +} + +// +ASDCP::MXF::InterchangeObject* +ASDCP::MXF::CreateObject(const Dictionary*& Dict, const UL& label) +{ + if ( ! s_TypesInit ) + { + Kumu::AutoMutex BlockLock(s_InitLock); + + if ( ! s_TypesInit ) + { + MXF::Metadata_InitTypes(Dict); + s_TypesInit = true; + } + } + + FLi_t i = s_FactoryList.find(label.Value()); + + if ( i == s_FactoryList.end() ) + return new InterchangeObject(Dict); + + return i->second(Dict); +} + + +// +// end MXF.cpp +// |
