/*
-Copyright (c) 2004-2005, John Hurst
+Copyright (c) 2004-2009, John Hurst
All rights reserved.
Redistribution and use in source and binary forms, with or without
\brief AS-DCP library, non-public common elements
*/
-#ifndef _AS_DCP_INTERNAL_H__
-#define _AS_DCP_INTERNAL_H__
+#ifndef _AS_DCP_INTERNAL_H_
+#define _AS_DCP_INTERNAL_H_
-#include "AS_DCP_system.h"
+#include <KM_platform.h>
+#include <KM_util.h>
+#include <KM_log.h>
#include "Metadata.h"
-#include "hex_utils.h"
-using namespace std;
+using Kumu::DefaultLogSink;
+// using namespace std;
using namespace ASDCP;
using namespace ASDCP::MXF;
namespace ASDCP
{
// constant values used to calculate KLV and EKLV packet sizes
- static const ui32_t klv_key_size = 16;
- static const ui32_t klv_length_size = 4;
-
static const ui32_t klv_cryptinfo_size =
- klv_length_size
+ MXF_BER_LENGTH
+ UUIDlen /* ContextID */
- + klv_length_size
+ + MXF_BER_LENGTH
+ sizeof(ui64_t) /* PlaintextOffset */
- + klv_length_size
- + klv_key_size /* SourceKey */
- + klv_length_size
+ + MXF_BER_LENGTH
+ + SMPTE_UL_LENGTH /* SourceKey */
+ + MXF_BER_LENGTH
+ sizeof(ui64_t) /* SourceLength */
- + klv_length_size /* ESV length */ ;
+ + MXF_BER_LENGTH /* ESV length */ ;
static const ui32_t klv_intpack_size =
- klv_length_size
+ MXF_BER_LENGTH
+ UUIDlen /* TrackFileID */
- + klv_length_size
+ + MXF_BER_LENGTH
+ sizeof(ui64_t) /* SequenceNumber */
- + klv_length_size
+ + MXF_BER_LENGTH
+ 20; /* HMAC length*/
- // why this value? i dunno. it was peeled from mxflib.
- static const ui32_t HeaderPadding = 16384;
-
- const byte_t GCMulti_Data[16] =
- { 0x06, 0x0E, 0x2B, 0x34, 0x04, 0x01, 0x01, 0x03,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x7F, 0x01, 0x00 };
-
- static const byte_t CipherAlgorithm_AES[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
- 0x02, 0x09, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00 };
-
- static const byte_t MICAlgorithm_NONE[klv_key_size] = {0};
- static const byte_t MICAlgorithm_HMAC_SHA1[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
- 0x02, 0x09, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00 };
-
-#ifdef SMPTE_LABELS
- static byte_t OPAtom_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x02,
- 0x0d, 0x01, 0x02, 0x01, 0x10, 0x00, 0x00, 0x00 };
- static UL OPAtomUL(OPAtom_Data);
-#else
- static byte_t OPAtom_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01,
- 0x0d, 0x01, 0x02, 0x01, 0x10, 0x00, 0x00, 0x00 };
- static UL OPAtomUL(OPAtom_Data);
-#endif
-
- static const byte_t OP1a_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01,
- 0x0d, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, 0x00 };
- static UL OP1aUL(OP1a_Data);
-
- // Essence element labels
- static const byte_t WAVEssenceUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x01, 0x02, 0x01, 0x01,
- 0x0d, 0x01, 0x03, 0x01, 0x16, 0x01, 0x01, 0x00 };
-
- static const byte_t MPEGEssenceUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x01, 0x02, 0x01, 0x01,
- 0x0d, 0x01, 0x03, 0x01, 0x15, 0x01, 0x05, 0x00 };
-
- static const byte_t JP2KEssenceUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x01, 0x02, 0x01, 0x01,
- 0x0d, 0x01, 0x03, 0x01, 0x15, 0x01, 0x08, 0x01 };
-
-#ifdef SMPTE_LABELS
- static const byte_t CryptEssenceUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x04, 0x01, 0x01,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x7e, 0x01, 0x00 };
-#else
- static const byte_t CryptEssenceUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x02, 0x04, 0x01, 0x07,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x7e, 0x01, 0x00 };
-#endif
-
- // Essence Container Labels
- static const byte_t WrappingUL_Data_PCM_24b_48k[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x01,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x06, 0x01, 0x00 };
-
- static const byte_t WrappingUL_Data_MPEG2_VES[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x02,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x04, 0x60, 0x01 };
-
- static const byte_t WrappingUL_Data_JPEG_2000[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x0c, 0x01, 0x00 };
-
- static const byte_t WrappingUL_Data_Crypt[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
- 0x0d, 0x01, 0x03, 0x01, 0x02, 0x0b, 0x01, 0x00 };
-
-
- // the label for the Cryptographic Framework DM scheme
- static const byte_t CryptoFrameworkUL_Data[klv_key_size] =
- { 0x06, 0x0e, 0x2b, 0x34, 0x04, 0x01, 0x01, 0x07,
- 0x0d, 0x01, 0x04, 0x01, 0x02, 0x01, 0x01, 0x00 };
+ // calculate size of encrypted essence with IV, CheckValue, and padding
+ inline ui32_t
+ calc_esv_length(ui32_t source_length, ui32_t plaintext_offset)
+ {
+ ui32_t ct_size = source_length - plaintext_offset;
+ ui32_t diff = ct_size % CBC_BLOCK_SIZE;
+ ui32_t block_size = ct_size - diff;
+ return plaintext_offset + block_size + (CBC_BLOCK_SIZE * 3);
+ }
// the check value for EKLV packets
// CHUKCHUKCHUKCHUK
{ 0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b,
0x43, 0x48, 0x55, 0x4b, 0x43, 0x48, 0x55, 0x4b };
- // labels used for FilePackages
- static std::string MPEG_PACKAGE_LABEL = "File Package: SMPTE 381M frame wrapping of MPEG2 video elementary stream";
- static std::string JP2K_PACKAGE_LABEL = "File Package: SMPTE XXXM frame wrapping of JPEG 2000 codestreams";
- static std::string PCM_PACKAGE_LABEL = "File Package: SMPTE 382M frame wrapping of wave audio";
-
- // GetMDObjectByPath() allows searching for metadata object by pathname
- // This character separates the path elements.
- static const char OBJECT_PATH_SEPARATOR = '.';
-
//------------------------------------------------------------------------------------------
//
- // MDObject* GetMDObjectByPath(MDObject&, const std::string);
- // MDObject* GetMDObjectByType(MDObject&, const std::string);
- // void DumpMDObject(MDObject&, std::string = " ", FILE* = 0);
- // void DumpHeader(Partition&, FILE* = 0);
- // void DumpIndexTable(IndexTablePtr, ui64_t = 0, FILE* = 0);
- // Result_t init_mxf_types();
- Result_t MD_to_MPEG2_VDesc(MXF::MPEG2VideoDescriptor*, MPEG2::VideoDescriptor&);
- Result_t MD_to_JP2K_PDesc(MXF::RGBAEssenceDescriptor*, JP2K::PictureDescriptor&);
- Result_t MD_to_PCM_ADesc(MXF::WaveAudioDescriptor*, PCM::AudioDescriptor&);
Result_t MD_to_WriterInfo(MXF::Identification*, WriterInfo&);
- Result_t MD_to_CryptoInfo(MXF::CryptographicContext*, WriterInfo&);
-
-#if 0
- Result_t MPEG2_VDesc_to_MD(MPEG2::VideoDescriptor&, MDObject&);
- Result_t JP2K_PDesc_to_MD(JP2K::PictureDescriptor&, MDObject&);
- Result_t PCM_ADesc_to_MD(PCM::AudioDescriptor&, MDObject&);
- void AddDMScrypt(PackagePtr, WriterInfo&, const byte_t*);
-#endif
-
+ Result_t MD_to_CryptoInfo(MXF::CryptographicContext*, WriterInfo&, const Dictionary&);
Result_t EncryptFrameBuffer(const ASDCP::FrameBuffer&, ASDCP::FrameBuffer&, AESEncContext*);
Result_t DecryptFrameBuffer(const ASDCP::FrameBuffer&, ASDCP::FrameBuffer&, AESDecContext*);
- // calculate size of encrypted essence with IV, CheckValue, and padding
- inline ui32_t
- calc_esv_length(ui32_t source_length, ui32_t plaintext_offset)
+ //
+ class KLReader : public ASDCP::KLVPacket
{
- ui32_t ct_size = source_length - plaintext_offset;
- ui32_t diff = ct_size % CBC_BLOCK_SIZE;
- ui32_t block_size = ct_size - diff;
- return plaintext_offset + block_size + (CBC_BLOCK_SIZE * 3);
- }
+ ASDCP_NO_COPY_CONSTRUCT(KLReader);
+ byte_t m_KeyBuf[SMPTE_UL_LENGTH*2];
+
+ public:
+ KLReader() {}
+ ~KLReader() {}
+
+ inline const byte_t* Key() { return m_KeyBuf; }
+ inline const ui64_t Length() { return m_ValueLength; }
+ inline const ui64_t KLLength() { return m_KLLength; }
+
+ Result_t ReadKLFromFile(Kumu::FileReader& Reader);
+ };
//
class h__Reader
{
ASDCP_NO_COPY_CONSTRUCT(h__Reader);
+ h__Reader();
public:
- FileReader m_File;
+ const Dictionary* m_Dict;
+ Kumu::FileReader m_File;
OPAtomHeader m_HeaderPart;
Partition m_BodyPart;
OPAtomIndexFooter m_FooterPart;
ui64_t m_EssenceStart;
WriterInfo m_Info;
ASDCP::FrameBuffer m_CtFrameBuf;
+ Kumu::fpos_t m_LastPosition;
- h__Reader();
+ h__Reader(const Dictionary&);
virtual ~h__Reader();
- //
- // MDObject* GetMDObjectByType(const std::string ObjName);
- // MDObject* GetMDObjectByPath(const std::string ObjPath);
- Result_t InitInfo(WriterInfo& Info);
+
+ Result_t InitInfo();
Result_t OpenMXFRead(const char* filename);
Result_t InitMXFIndex();
- Result_t ReadEKLVPacket(ui32_t FrameNum, ASDCP::FrameBuffer& FrameBuf,
+
+ // positions file before reading
+ Result_t ReadEKLVFrame(ui32_t FrameNum, ASDCP::FrameBuffer& FrameBuf,
+ const byte_t* EssenceUL, AESDecContext* Ctx, HMACContext* HMAC);
+
+ // reads from current position
+ Result_t ReadEKLVPacket(ui32_t FrameNum, ui32_t SequenceNum, ASDCP::FrameBuffer& FrameBuf,
const byte_t* EssenceUL, AESDecContext* Ctx, HMACContext* HMAC);
void Close();
};
+
+ // state machine for mxf writer
+ enum WriterState_t {
+ ST_BEGIN, // waiting for Open()
+ ST_INIT, // waiting for SetSourceStream()
+ ST_READY, // ready to write frames
+ ST_RUNNING, // one or more frames written
+ ST_FINAL, // index written, file closed
+ };
+
+ // implementation of h__WriterState class Goto_* methods
+#define Goto_body(s1,s2) if ( m_State != (s1) ) \
+ return RESULT_STATE; \
+ m_State = (s2); \
+ return RESULT_OK
+ //
+ class h__WriterState
+ {
+ ASDCP_NO_COPY_CONSTRUCT(h__WriterState);
+
+ public:
+ WriterState_t m_State;
+ h__WriterState() : m_State(ST_BEGIN) {}
+ ~h__WriterState() {}
+
+ inline bool Test_BEGIN() { return m_State == ST_BEGIN; }
+ inline bool Test_INIT() { return m_State == ST_INIT; }
+ inline bool Test_READY() { return m_State == ST_READY;}
+ inline bool Test_RUNNING() { return m_State == ST_RUNNING; }
+ inline bool Test_FINAL() { return m_State == ST_FINAL; }
+ inline Result_t Goto_INIT() { Goto_body(ST_BEGIN, ST_INIT); }
+ inline Result_t Goto_READY() { Goto_body(ST_INIT, ST_READY); }
+ inline Result_t Goto_RUNNING() { Goto_body(ST_READY, ST_RUNNING); }
+ inline Result_t Goto_FINAL() { Goto_body(ST_RUNNING, ST_FINAL); }
+ };
+
+ typedef std::list<ui64_t*> DurationElementList_t;
+
+ //
+ class h__Writer
+ {
+ ASDCP_NO_COPY_CONSTRUCT(h__Writer);
+ h__Writer();
+
+ public:
+ const Dictionary* m_Dict;
+ Kumu::FileWriter m_File;
+ ui32_t m_HeaderSize;
+ OPAtomHeader m_HeaderPart;
+ Partition m_BodyPart;
+ OPAtomIndexFooter m_FooterPart;
+ ui64_t m_EssenceStart;
+
+ MaterialPackage* m_MaterialPackage;
+ SourcePackage* m_FilePackage;
+
+ FileDescriptor* m_EssenceDescriptor;
+ std::list<InterchangeObject*> m_EssenceSubDescriptorList;
+
+ ui32_t m_FramesWritten;
+ ui64_t m_StreamOffset;
+ ASDCP::FrameBuffer m_CtFrameBuf;
+ h__WriterState m_State;
+ WriterInfo m_Info;
+ DurationElementList_t m_DurationUpdateList;
+
+ h__Writer(const Dictionary&);
+ virtual ~h__Writer();
+
+ void InitHeader();
+ void AddSourceClip(const MXF::Rational& EditRate, ui32_t TCFrameRate,
+ const std::string& TrackName, const UL& EssenceUL,
+ const UL& DataDefinition, const std::string& PackageLabel);
+ void AddDMSegment(const MXF::Rational& EditRate, ui32_t TCFrameRate,
+ const std::string& TrackName, const UL& DataDefinition,
+ const std::string& PackageLabel);
+ void AddEssenceDescriptor(const UL& WrappingUL);
+ Result_t CreateBodyPart(const MXF::Rational& EditRate, ui32_t BytesPerEditUnit = 0);
+
+ // all the above for a single source clip
+ Result_t WriteMXFHeader(const std::string& PackageLabel, const UL& WrappingUL,
+ const std::string& TrackName, const UL& EssenceUL,
+ const UL& DataDefinition, const MXF::Rational& EditRate,
+ ui32_t TCFrameRate, ui32_t BytesPerEditUnit = 0);
+
+ Result_t WriteEKLVPacket(const ASDCP::FrameBuffer& FrameBuf,
+ const byte_t* EssenceUL, AESEncContext* Ctx, HMACContext* HMAC);
+
+ Result_t WriteMXFFooter();
+
+ };
+
+
// helper class for calculating Integrity Packs, used by WriteEKLVPacket() below.
//
class IntegrityPack
Result_t TestValues(const ASDCP::FrameBuffer&, byte_t* AssetID, ui32_t sequence, HMACContext* HMAC);
};
- //
- class KLVReader
- {
- byte_t m_Key[32];
- ui64_t m_Length;
- ui32_t m_BERLength;
- ui32_t m_HeaderLength;
-
- ASDCP_NO_COPY_CONSTRUCT(KLVReader);
-
- public:
- KLVReader() : m_Length(0), m_BERLength(0), m_HeaderLength(0) {}
- ~KLVReader() {}
-
- inline const byte_t* Key() { return m_Key; }
- inline const ui64_t Length() { return m_Length; }
- inline const ui64_t KLLength() { return m_BERLength + klv_key_size; }
- Result_t ReadKLFromFile(ASDCP::FileReader& Reader);
-#if 0
- //
- {
- ui32_t read_count;
- m_HeaderLength = klv_key_size + klv_length_size;
- Result_t result = Reader.Read(m_Key, m_HeaderLength, &read_count);
- assert(read_count == m_HeaderLength);
-
- if ( ASDCP_SUCCESS(result) )
- {
- m_BERLength = BER_length(m_Key + klv_key_size);
-
- if ( m_BERLength != klv_length_size )
- {
- ASDCP::DefaultLogSink().Error("Found packet with BER length %lu; being less efficient...\n",
- m_BERLength);
- // TODO: recover the correct BER value
- // and reposition the file pointer
- assert(0);
- }
-
- if ( ! read_BER(m_Key + klv_key_size, &m_Length) )
- return RESULT_FAIL;
- }
-
- return result;
- }
-#endif
-
- };
} // namespace ASDCP
-#endif // _AS_DCP_INTERNAL_H__
+#endif // _AS_DCP_INTERNAL_H_
//
projects / asdcplib.git / blobdiff