/*
-Copyright (c) 2003-2006, John Hurst
+Copyright (c) 2003-2018, John Hurst
All rights reserved.
Redistribution and use in source and binary forms, with or without
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*! \file AS_DCP.h
- \version $Id$
+ \version $Id$
\brief AS-DCP library, public interface
-The asdcplib library is a set of wrapper objects that offer simplified
-access to files conforming to the file formats proposed by the SMPTE
-D-Cinema packaging working group DC28.20. The file format, labeled
-AS-DCP, is described in series of separate documents which include but
-may not be limited to:
-
- o AS-DCP Track File Specification
- o AS-DCP Track File Essence Encryption Specification
- o AS-DCP Operational Constraints Specification
- o SMPTE 330M - UMID
- o SMPTE 336M - KLV
- o SMPTE 377M - MXF
- o SMPTE 390M - OP-Atom
- o SMPTE 379M - Generic Container
- o SMPTE 381M - MPEG2 picture
- o SMPTE XXXM - JPEG 2000 picture
- o SMPTE 382M - WAV/PCM sound
+The asdcplib library is a set of file access objects that offer simplified
+access to files conforming to the standards published by the SMPTE
+D-Cinema Technology Committee 21DC. The file format, labeled AS-DCP,
+is described in a series of documents which includes but may not
+be be limited to:
+
+ o SMPTE ST 429-2:2011 DCP Operational Constraints
+ o SMPTE ST 429-3:2006 Sound and Picture Track File
+ o SMPTE ST 429-4:2006 MXF JPEG 2000 Application
+ o SMPTE ST 429-5:2009 Timed Text Track File
+ o SMPTE ST 429-6:2006 MXF Track File Essence Encryption
+ o SMPTE ST 429-10:2008 Stereoscopic Picture Track File
+ o SMPTE ST 429-14:2008 Aux Data Track File
+ o SMPTE ST 330:2004 - UMID
+ o SMPTE ST 336:2001 - KLV
+ o SMPTE ST 377:2004 - MXF (old version, required)
+ o SMPTE ST 377-1:2011 - MXF
+ o SMPTE ST 377-4:2012 - MXF Multichannel Audio Labeling Framework
+ o SMPTE ST 390:2011 - MXF OP-Atom
+ o SMPTE ST 379-1:2009 - MXF Generic Container (GC)
+ o SMPTE ST 381-1:2005 - MPEG2 picture in GC
+ o SMPTE ST 422:2006 - JPEG 2000 picture in GC
+ o SMPTE ST 382:2007 - WAV/PCM sound in GC
o IETF RFC 2104 - HMAC/SHA1
- o NIST FIPS 197 - AES (Rijndael)
+ o NIST FIPS 197 - AES (Rijndael) (via OpenSSL)
+
+ o MXF Interop Track File Specification
+ o MXF Interop Track File Essence Encryption Specification
+ o MXF Interop Operational Constraints Specification
+ - Note: the MXF Interop documents are not formally published.
+ Contact the asdcplib support address to get copies.
The following use cases are supported by the library:
- o Write a plaintext MPEG2 Video Elementary Stream to a plaintext ASDCP file
- o Write a plaintext MPEG2 Video Elementary Stream to a ciphertext ASDCP file
- o Read a plaintext MPEG2 Video Elementary Stream from a plaintext ASDCP file
- o Read a plaintext MPEG2 Video Elementary Stream from a ciphertext ASDCP file
- o Read a ciphertext MPEG2 Video Elementary Stream from a ciphertext ASDCP file
- o Write one or more plaintext JPEG 2000 codestreams to a plaintext ASDCP file
- o Write one or more plaintext JPEG 2000 codestreams to a ciphertext ASDCP file
- o Read one or more plaintext JPEG 2000 codestreams from a plaintext ASDCP file
- o Read one or more plaintext JPEG 2000 codestreams from a ciphertext ASDCP file
- o Read one or more ciphertext JPEG 2000 codestreams from a ciphertext ASDCP file
- o Write one or more plaintext PCM audio streams to a plaintext ASDCP file
- o Write one or more plaintext PCM audio streams to a ciphertext ASDCP file
- o Read one or more plaintext PCM audio streams from a plaintext ASDCP file
- o Read one or more plaintext PCM audio streams from a ciphertext ASDCP file
- o Read one or more ciphertext PCM audio streams from a ciphertext ASDCP file
- o Read header metadata from an ASDCP file
-
-This project depends upon the following library:
- - OpenSSL http://www.openssl.org/
+ o Write essence to a plaintext or ciphertext AS-DCP file:
+ o Read essence from a plaintext or ciphertext AS-DCP file:
+ MPEG2 Video Elementary Stream
+ JPEG 2000 codestreams
+ JPEG 2000 stereoscopic codestream pairs
+ PCM audio streams
+ SMPTE 429-7 Timed Text XML with font and image resources
+ Aux Data (frame-wrapped synchronous blob)
+ Proposed Dolby (TM) Atmos track file
+ o Read header metadata from an AS-DCP file
+
+This project depends upon the following libraries:
+ - OpenSSL http://www.openssl.org/
+ - Expat http://expat.sourceforge.net/ or
+ Xerces-C http://xerces.apache.org/xerces-c/
+ An XML library is not needed if you don't need support for SMPTE ST 429-5:2009.
*/
#ifndef _AS_DCP_H_
#define _AS_DCP_H_
#include <KM_error.h>
+#include <KM_fileio.h>
#include <stdio.h>
#include <stdarg.h>
-#include <iostream>
#include <math.h>
+#include <iosfwd>
+#include <string>
+#include <cstring>
+#include <list>
//--------------------------------------------------------------------------------
// common integer types
// All library components are defined in the namespace ASDCP
//
namespace ASDCP {
- // The version number consists of three segments: major, API minor, and
- // implementation minor. Whenever a change is made to AS_DCP.h, the API minor
- // version will increment. Changes made to the internal implementation will
- // result in the incrementing of the implementation minor version.
-
- // For example, if asdcplib version 1.0.0 were modified to accomodate changes
- // in file format, and if no changes were made to AS_DCP.h, the new version would be
- // 1.0.1. If changes were also required in AS_DCP.h, the new version would be 1.1.1.
- const ui32_t VERSION_MAJOR = 1;
- const ui32_t VERSION_APIMINOR = 1;
- const ui32_t VERSION_IMPMINOR = 10;
+ //
+ // The version number declaration and explanation have moved to ../configure.ac
const char* Version();
// UUIDs are passed around as strings of UUIDlen bytes
using Kumu::RESULT_ENDOFFILE;
using Kumu::RESULT_CONFIG;
- const Kumu::Result_t RESULT_FORMAT (-101, "The file format is not proper OP-Atom/AS-DCP.");
- const Kumu::Result_t RESULT_RAW_ESS (-102, "Unknown raw essence file type.");
- const Kumu::Result_t RESULT_RAW_FORMAT (-103, "Raw essence format invalid.");
- const Kumu::Result_t RESULT_RANGE (-104, "Frame number out of range.");
- const Kumu::Result_t RESULT_CRYPT_CTX (-105, "AESEncContext required when writing to encrypted file.");
- const Kumu::Result_t RESULT_LARGE_PTO (-106, "Plaintext offset exceeds frame buffer size.");
- const Kumu::Result_t RESULT_CAPEXTMEM (-107, "Cannot resize externally allocated memory.");
- const Kumu::Result_t RESULT_CHECKFAIL (-108, "The check value did not decrypt correctly.");
- const Kumu::Result_t RESULT_HMACFAIL (-109, "HMAC authentication failure.");
- const Kumu::Result_t RESULT_HMAC_CTX (-110, "HMAC context required.");
- const Kumu::Result_t RESULT_CRYPT_INIT (-111, "Error initializing block cipher context.");
- const Kumu::Result_t RESULT_EMPTY_FB (-112, "Empty frame buffer.");
- const Kumu::Result_t RESULT_KLV_CODING (-113, "KLV coding error.");
+ KM_DECLARE_RESULT(FORMAT, -101, "The file format is not proper OP-Atom/AS-DCP.");
+ KM_DECLARE_RESULT(RAW_ESS, -102, "Unknown raw essence file type.");
+ KM_DECLARE_RESULT(RAW_FORMAT, -103, "Raw essence format invalid.");
+ KM_DECLARE_RESULT(RANGE, -104, "Frame number out of range.");
+ KM_DECLARE_RESULT(CRYPT_CTX, -105, "AESEncContext required when writing to encrypted file.");
+ KM_DECLARE_RESULT(LARGE_PTO, -106, "Plaintext offset exceeds frame buffer size.");
+ KM_DECLARE_RESULT(CAPEXTMEM, -107, "Cannot resize externally allocated memory.");
+ KM_DECLARE_RESULT(CHECKFAIL, -108, "The check value did not decrypt correctly.");
+ KM_DECLARE_RESULT(HMACFAIL, -109, "HMAC authentication failure.");
+ KM_DECLARE_RESULT(HMAC_CTX, -110, "HMAC context required.");
+ KM_DECLARE_RESULT(CRYPT_INIT, -111, "Error initializing block cipher context.");
+ KM_DECLARE_RESULT(EMPTY_FB, -112, "Empty frame buffer.");
+ KM_DECLARE_RESULT(KLV_CODING, -113, "KLV coding error.");
+ KM_DECLARE_RESULT(SPHASE, -114, "Stereoscopic phase mismatch.");
+ KM_DECLARE_RESULT(SFORMAT, -115, "Rate mismatch, file may contain stereoscopic essence.");
//---------------------------------------------------------------------------------
// file identification
// The file accessors in this library implement a bounded set of essence types.
// This list will be expanded when support for new types is added to the library.
enum EssenceType_t {
- ESS_UNKNOWN, // the file is not a supported AS-DCP essence container
- ESS_MPEG2_VES, // the file contains an MPEG video elementary stream
- ESS_JPEG_2000, // the file contains one or more JPEG 2000 codestreams
- ESS_PCM_24b_48k, // the file contains one or more PCM audio pairs
- ESS_PCM_24b_96k, // the file contains one or more PCM audio pairs
+ ESS_UNKNOWN, // the file is not a supported AS-DCP of AS-02 essence container
+
+ //
+ ESS_MPEG2_VES, // the file contains an MPEG-2 video elementary stream
+
+ // d-cinema essence types
+ ESS_JPEG_2000, // the file contains one or more JPEG 2000 codestreams
+ ESS_PCM_24b_48k, // the file contains one or more PCM audio pairs
+ ESS_PCM_24b_96k, // the file contains one or more PCM audio pairs
+ ESS_TIMED_TEXT, // the file contains an XML timed text document and one or more resources
+ ESS_JPEG_2000_S, // the file contains one or more JPEG 2000 codestream pairs (stereoscopic)
+ ESS_DCDATA_UNKNOWN, // the file contains one or more D-Cinema Data bytestreams
+ ESS_DCDATA_DOLBY_ATMOS, // the file contains one or more DolbyATMOS bytestreams
+
+ // IMF essence types
+ ESS_AS02_JPEG_2000, // the file contains one or more JPEG 2000 codestreams
+ ESS_AS02_PCM_24b_48k, // the file contains one or more PCM audio pairs, clip wrapped
+ ESS_AS02_PCM_24b_96k, // the file contains one or more PCM audio pairs, clip wrapped
+ ESS_AS02_TIMED_TEXT, // the file contains a TTML document and zero or more resources
+ ESS_AS02_ISXD, // the file contains an ISXD document stream (per SMPTE RDD 47)
+ ESS_AS02_ACES, // the file contains two or more ACES codestreams (per SMPTE ST 2067-50)
+ ESS_MAX
};
// Determine the type of essence contained in the given MXF file. RESULT_OK
// is returned if the file is successfully opened and contains a valid MXF
// stream. If there is an error, the result code will indicate the reason.
- Result_t EssenceType(const char* filename, EssenceType_t& type);
+ Result_t EssenceType(const std::string& filename, EssenceType_t& type);
// Determine the type of essence contained in the given raw file. RESULT_OK
// is returned if the file is successfully opened and contains a known
// stream type. If there is an error, the result code will indicate the reason.
- Result_t RawEssenceType(const char* filename, EssenceType_t& type);
+ Result_t RawEssenceType(const std::string& filename, EssenceType_t& type);
//---------------------------------------------------------------------------------
inline bool operator!=(const Rational& rhs) const {
return ( rhs.Numerator != Numerator || rhs.Denominator != Denominator );
}
+
+ inline bool operator<(const Rational& rhs) {
+ if ( Numerator < rhs.Numerator ) return true;
+ if ( Numerator == rhs.Numerator && Denominator < rhs.Denominator ) return true;
+ return false;
+ }
+
+ inline bool operator>(const Rational& rhs) {
+ if ( Numerator > rhs.Numerator ) return true;
+ if ( Numerator == rhs.Numerator && Denominator > rhs.Denominator ) return true;
+ return false;
+ }
};
+ // Encodes a rational number as a string having a single delimiter character between
+ // numerator and denominator. Retuns the buffer pointer to allow convenient in-line use.
+ const char* EncodeRational(const Rational&, char* str_buf, ui32_t buf_len, char delimiter = ' ');
+
+ // Decodes a rational number havng a single non-digit delimiter character between
+ // the numerator and denominator. Returns false if the string does not contain
+ // the expected syntax.
+ bool DecodeRational(const char* str_rat, Rational&);
+
+
// common edit rates, use these instead of hard coded constants
- const Rational EditRate_24(24,1);
- const Rational EditRate_23_98(24000,1001);
- const Rational EditRate_48(48,1);
- const Rational SampleRate_48k(48000,1);
+ const Rational EditRate_24 = Rational(24,1);
+ const Rational EditRate_23_98 = Rational(24000,1001); // Not a DCI-compliant value!
+ const Rational EditRate_48 = Rational(48,1);
+ const Rational SampleRate_48k = Rational(48000,1);
+ const Rational SampleRate_96k = Rational(96000,1);
+
+ // Additional frame rates, see ST 428-11, ST 429-13
+ // These rates are new and not supported by all systems. Do not assume that
+ // a package made using one of these rates will work just anywhere!
+ const Rational EditRate_25 = Rational(25,1);
+ const Rational EditRate_30 = Rational(30,1);
+ const Rational EditRate_50 = Rational(50,1);
+ const Rational EditRate_60 = Rational(60,1);
+ const Rational EditRate_96 = Rational(96,1);
+ const Rational EditRate_100 = Rational(100,1);
+ const Rational EditRate_120 = Rational(120,1);
+ const Rational EditRate_192 = Rational(192,1);
+ const Rational EditRate_200 = Rational(200,1);
+ const Rational EditRate_240 = Rational(240,1);
+
+ // Archival frame rates, see ST 428-21
+ // These rates are new and not supported by all systems. Do not assume that
+ // a package made using one of these rates will work just anywhere!
+ const Rational EditRate_16 = Rational(16,1);
+ const Rational EditRate_18 = Rational(200,11); // 18.182
+ const Rational EditRate_20 = Rational(20,1);
+ const Rational EditRate_22 = Rational(240,11); // 21.818
+
// Non-reference counting container for internal member objects.
// Please do not use this class for any other purpose.
// MXF files use SMPTE Universal Labels to identify data items. The set of Labels
// in a file is determined by the MXF Operational Pattern and any constraining
// documentation. There are currently two flavors of AS-DCP file in use: MXF Interop
- // and SMPTE. The two differ only in the values of two labels:
+ // (AKA JPEG Interop) and SMPTE. The two differ in the values of three labels:
+ //
+ // OPAtom
+ // Interop : 06 0e 2b 34 04 01 01 01 0d 01 02 01 10 00 00 00
+ // SMPTE : 06 0e 2b 34 04 01 01 02 0d 01 02 01 10 00 00 00
//
- // OP Atom / Interop : 06 0e 2b 34 04 01 01 01 0d 01 02 01 10 00 00 00
- // OP Atom / SMPTE : 06 0e 2b 34 04 01 01 02 0d 01 02 01 10 00 00 00
- // and
- // EKLV Packet / Interop : 06 0e 2b 34 02 04 01 07 0d 01 03 01 02 7e 01 00
- // EKLV Packet / SMPTE : 06 0e 2b 34 02 04 01 01 0d 01 03 01 02 7e 01 00
+ // EKLV Packet:
+ // Interop : 06 0e 2b 34 02 04 01 07 0d 01 03 01 02 7e 01 00
+ // SMPTE : 06 0e 2b 34 02 04 01 01 0d 01 03 01 02 7e 01 00
+ //
+ // GenericDescriptor/SubDescriptors:
+ // Interop : 06 0e 2b 34 01 01 01 02 06 01 01 04 06 10 00 00
+ // SMPTE : 06 0e 2b 34 01 01 01 09 06 01 01 04 06 10 00 00
//
// asdcplib will read any (otherwise valid) file which has any combination of the
// above values. When writing files, MXF Interop labels are used by default. To
// write a file containing SMPTE labels, replace the default label set value in
// the WriterInfo before calling OpenWrite()
//
+ //
enum LabelSet_t
{
LS_MXF_UNKNOWN,
LS_MXF_INTEROP,
- LS_MXF_SMPTE
+ LS_MXF_SMPTE,
+ LS_MAX
};
//
static byte_t default_ProductUUID_Data[UUIDlen] = {
0x43, 0x05, 0x9a, 0x1d, 0x04, 0x32, 0x41, 0x01,
0xb8, 0x3f, 0x73, 0x68, 0x15, 0xac, 0xf3, 0x1d };
-
+
memcpy(ProductUUID, default_ProductUUID_Data, UUIDlen);
memset(AssetUUID, 0, UUIDlen);
memset(ContextID, 0, UUIDlen);
}
};
+ // Print WriterInfo to std::ostream
+ std::ostream& operator << (std::ostream& strm, const WriterInfo& winfo);
// Print WriterInfo to stream, stderr by default.
void WriterInfoDump(const WriterInfo&, FILE* = 0);
// Initializes Rijndael CBC encryption context.
// Returns error if the key argument is NULL.
Result_t InitKey(const byte_t* key);
-
+
// Initializes 16 byte CBC Initialization Vector. This operation may be performed
// any number of times for a given key.
// Returns error if the i_vec argument is NULL.
// Initializes HMAC context. The key argument must point to a binary
// key that is CBC_KEY_SIZE bytes in length. Returns error if the key
// argument is NULL.
- Result_t InitKey(const byte_t* key, LabelSet_t = LS_MXF_INTEROP);
+ Result_t InitKey(const byte_t* key, LabelSet_t);
// Reset internal state, allows repeated cycles of Update -> Finalize
void Reset();
inline ui32_t PlaintextOffset() const { return m_PlaintextOffset; }
};
+ //---------------------------------------------------------------------------------
+ // Accessors in the MXFReader and MXFWriter classes below return these types to
+ // provide direct access to MXF metadata structures declared in MXF.h and Metadata.h
+
+ namespace MXF {
+ // #include<Metadata.h> to use these
+ class OP1aHeader;
+ class OPAtomIndexFooter;
+ class RIP;
+ };
//---------------------------------------------------------------------------------
// MPEG2 video elementary stream support
// MPEG2VideoDescriptor object.
struct VideoDescriptor
{
- Rational EditRate; //
- ui32_t FrameRate; //
- Rational SampleRate; //
- ui8_t FrameLayout; //
- ui32_t StoredWidth; //
- ui32_t StoredHeight; //
- Rational AspectRatio; //
- ui32_t ComponentDepth; //
- ui32_t HorizontalSubsampling; //
- ui32_t VerticalSubsampling; //
- ui8_t ColorSiting; //
- ui8_t CodedContentType; //
- bool LowDelay; //
- ui32_t BitRate; //
- ui8_t ProfileAndLevel; //
- ui32_t ContainerDuration; //
+ Rational EditRate; //
+ ui32_t FrameRate; //
+ Rational SampleRate; //
+ ui8_t FrameLayout; //
+ ui32_t StoredWidth; //
+ ui32_t StoredHeight; //
+ Rational AspectRatio; //
+ ui32_t ComponentDepth; //
+ ui32_t HorizontalSubsampling; //
+ ui32_t VerticalSubsampling; //
+ ui8_t ColorSiting; //
+ ui8_t CodedContentType; //
+ bool LowDelay; //
+ ui32_t BitRate; //
+ ui8_t ProfileAndLevel; //
+ ui32_t ContainerDuration; //
};
+ // Print VideoDescriptor to std::ostream
+ std::ostream& operator << (std::ostream& strm, const VideoDescriptor& vdesc);
// Print VideoDescriptor to stream, stderr by default.
void VideoDescriptorDump(const VideoDescriptor&, FILE* = 0);
{
Capacity(size);
}
-
+
virtual ~FrameBuffer() {}
// Sets the MPEG frame type of the picture data in the frame buffer.
// Opens the stream for reading, parses enough data to provide a complete
// set of stream metadata for the MXFWriter below.
- Result_t OpenRead(const char* filename) const;
+ Result_t OpenRead(const std::string& filename) const;
// Fill a VideoDescriptor struct with the values from the file's header.
// Returns RESULT_INIT if the file is not open.
MXFWriter();
virtual ~MXFWriter();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for writing. The file must not exist. Returns error if
// the operation cannot be completed or if nonsensical data is discovered
// in the essence descriptor.
- Result_t OpenWrite(const char* filename, const WriterInfo&,
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
const VideoDescriptor&, ui32_t HeaderSize = 16384);
// Writes a frame of essence to the MXF file. If the optional AESEncContext
MXFReader();
virtual ~MXFReader();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for reading. The file must exist. Returns error if the
// operation cannot be completed.
- Result_t OpenRead(const char* filename) const;
+ Result_t OpenRead(const std::string& filename) const;
// Returns RESULT_INIT if the file is not open.
Result_t Close() const;
// out of range, or if optional decrypt or HAMC operations fail.
Result_t ReadFrame(ui32_t frame_number, FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_RANGE if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
// Calculates the first frame in transport order of the GOP in which the requested
// frame is located. Calls ReadFrame() to fetch the frame at the calculated position.
// Returns RESULT_INIT if the file is not open.
};
} // namespace MPEG2
+ //---------------------------------------------------------------------------------
//
+
+
+
namespace PCM
{
+ // The default value of the ChannelFormat element of the AudioDescriptor struct
+ // is CF_NONE. If the value is set to one of the other ChannelFormat_t enum
+ // values, the file's Wave Audio Descriptor will contain a Channel Assignment
+ // element.
+ //
+ // The channel format should be one of (CF_CFG_1, CF_CFG_2, or CF_CFG_3) for
+ // SMPTE 429-2 files. It should normally be CF_NONE for JPEG Interop files, but
+ // the 429-2 may also be used.
+ //
+ enum ChannelFormat_t {
+ CF_NONE,
+ CF_CFG_1, // 5.1 with optional HI/VI
+ CF_CFG_2, // 6.1 (5.1 + center surround) with optional HI/VI
+ CF_CFG_3, // 7.1 (SDDS) with optional HI/VI
+ CF_CFG_4, // Wild Track Format
+ CF_CFG_5, // 7.1 DS with optional HI/VI
+ CF_CFG_6, // ST 377-4 (MCA) labels (see also ASDCP::MXF::decode_mca_string)
+ CF_MAXIMUM
+ };
+
struct AudioDescriptor
{
- Rational SampleRate; // rate of frame wrapping
+ Rational EditRate; // rate of frame wrapping
Rational AudioSamplingRate; // rate of audio sample
- ui32_t Locked; //
+ ui32_t Locked; //
ui32_t ChannelCount; // number of channels
ui32_t QuantizationBits; // number of bits per single-channel sample
ui32_t BlockAlign; // number of bytes ber sample, all channels
- ui32_t AvgBps; //
- ui32_t LinkedTrackID; //
+ ui32_t AvgBps; //
+ ui32_t LinkedTrackID; //
ui32_t ContainerDuration; // number of frames
+ ChannelFormat_t ChannelFormat; // audio channel arrangement
};
+ // Print AudioDescriptor to std::ostream
+ std::ostream& operator << (std::ostream& strm, const AudioDescriptor& adesc);
// Print debugging information to stream (stderr default)
void AudioDescriptorDump(const AudioDescriptor&, FILE* = 0);
// Returns number of samples per frame of data described by ADesc
inline ui32_t CalcSamplesPerFrame(const AudioDescriptor& ADesc)
{
- double tmpd = ADesc.AudioSamplingRate.Quotient() / ADesc.SampleRate.Quotient();
+ double tmpd = ADesc.AudioSamplingRate.Quotient() / ADesc.EditRate.Quotient();
return (ui32_t)ceil(tmpd);
}
FrameBuffer() {}
FrameBuffer(ui32_t size) { Capacity(size); }
virtual ~FrameBuffer() {}
-
+
// Print debugging information to stream (stderr default)
void Dump(FILE* = 0, ui32_t dump_bytes = 0) const;
};
// Opens the stream for reading, parses enough data to provide a complete
// set of stream metadata for the MXFWriter below. PictureRate controls
// ther frame rate for the MXF frame wrapping option.
- Result_t OpenRead(const char* filename, const Rational& PictureRate) const;
+ Result_t OpenRead(const std::string& filename, const Rational& PictureRate) const;
// Fill an AudioDescriptor struct with the values from the file's header.
// Returns RESULT_INIT if the file is not open.
// Reads the next sequential frame in the input file and places it in the
// frame buffer. Fails if the buffer is too small or the stream is empty.
Result_t ReadFrame(FrameBuffer&) const;
+
+ Result_t Seek(ui32_t frame_number) const;
};
MXFWriter();
virtual ~MXFWriter();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for writing. The file must not exist. Returns error if
// the operation cannot be completed or if nonsensical data is discovered
// in the essence descriptor.
- Result_t OpenWrite(const char* filename, const WriterInfo&,
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
const AudioDescriptor&, ui32_t HeaderSize = 16384);
// Writes a frame of essence to the MXF file. If the optional AESEncContext
MXFReader();
virtual ~MXFReader();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for reading. The file must exist. Returns error if the
// operation cannot be completed.
- Result_t OpenRead(const char* filename) const;
+ Result_t OpenRead(const std::string& filename) const;
// Returns RESULT_INIT if the file is not open.
Result_t Close() const;
// out of range, or if optional decrypt or HAMC operations fail.
Result_t ReadFrame(ui32_t frame_number, FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_RANGE if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
// Print debugging information to stream
void DumpHeaderMetadata(FILE* = 0) const;
void DumpIndex(FILE* = 0) const;
};
} // namespace PCM
+ //---------------------------------------------------------------------------------
//
namespace JP2K
{
const ui32_t MaxComponents = 3;
- const ui32_t DefaultCodingDataLength = 64;
+ const ui32_t MaxPrecincts = 32; // ISO 15444-1 Annex A.6.1
+ const ui32_t MaxDefaults = 256; // made up
+ const ui8_t MaxCapabilities = 32;
+ const ui16_t MaxPRFN = 4;
+ const ui16_t MaxCPFN = 4;
+
+#pragma pack(1)
+ struct ImageComponent_t // ISO 15444-1 Annex A.5.1
+ {
+ ui8_t Ssize;
+ ui8_t XRsize;
+ ui8_t YRsize;
+ };
+
+ struct CodingStyleDefault_t // ISO 15444-1 Annex A.6.1
+ {
+ ui8_t Scod;
+
+ struct
+ {
+ ui8_t ProgressionOrder;
+ ui8_t NumberOfLayers[sizeof(ui16_t)];
+ ui8_t MultiCompTransform;
+ } SGcod;
+
+ struct
+ {
+ ui8_t DecompositionLevels;
+ ui8_t CodeblockWidth;
+ ui8_t CodeblockHeight;
+ ui8_t CodeblockStyle;
+ ui8_t Transformation;
+ ui8_t PrecinctSize[MaxPrecincts];
+ } SPcod;
+ };
+
+ struct QuantizationDefault_t // ISO 15444-1 Annex A.6.4
+ {
+ ui8_t Sqcd;
+ ui8_t SPqcd[MaxDefaults];
+ ui8_t SPqcdLength;
+ };
+
+ struct ExtendedCapabilities_t // ISO 15444-1 Annex A.5.2
+ {
+ ui32_t Pcap; // Pcap = 0 means that no extended capabilities are required
+ ui16_t Ccap[MaxCapabilities]; // Ccap^i in ISO/IEC 15444-1 corresponds to Ccap[i -1]
+ };
+
+ struct Profile_t // ISO 15444-1
+ {
+ ui16_t N; // N = 0 means that the profile is signaled through Rsiz exclusively
+ ui16_t Pprf[MaxPRFN]; // Pprf^i in ISO/IEC 15444-1 corresponds to Pprf[i -1]
+ };
- struct ImageComponent
+ struct CorrespondingProfile_t // ISO 15444-1
{
- byte_t Ssize;
- byte_t XRsize;
- byte_t YRsize;
+ ui16_t N; // N = 0 means that no corresponding profile is signaled
+ ui16_t Pcpf[MaxCPFN]; // Pcpf^i in ISO/IEC 15444-1 corresponds to Pcpf[i -1]
};
+#pragma pack()
+
struct PictureDescriptor
{
Rational EditRate;
ui32_t XTOsize;
ui32_t YTOsize;
ui16_t Csize;
- ImageComponent ImageComponents[MaxComponents];
- byte_t CodingStyle[DefaultCodingDataLength];
- ui32_t CodingStyleLength;
- byte_t QuantDefault[DefaultCodingDataLength];
- ui32_t QuantDefaultLength;
+ ImageComponent_t ImageComponents[MaxComponents];
+ CodingStyleDefault_t CodingStyleDefault;
+ QuantizationDefault_t QuantizationDefault;
+ ExtendedCapabilities_t ExtendedCapabilities;
+ Profile_t Profile;
+ CorrespondingProfile_t CorrespondingProfile;
};
+ // Print debugging information to std::ostream
+ std::ostream& operator << (std::ostream& strm, const PictureDescriptor& pdesc);
// Print debugging information to stream (stderr default)
void PictureDescriptorDump(const PictureDescriptor&, FILE* = 0);
FrameBuffer() {}
FrameBuffer(ui32_t size) { Capacity(size); }
virtual ~FrameBuffer() {}
-
+
// Print debugging information to stream (stderr default)
void Dump(FILE* = 0, ui32_t dump_bytes = 0) const;
};
// The frame buffer's PlaintextOffset parameter will be set to the first
// byte of the data segment. Set this value to zero if you want
// encrypted headers.
- Result_t OpenReadFrame(const char* filename, FrameBuffer&) const;
+ Result_t OpenReadFrame(const std::string& filename, FrameBuffer&) const;
// Fill a PictureDescriptor struct with the values from the file's codestream.
// Returns RESULT_INIT if the file is not open.
Result_t FillPictureDescriptor(PictureDescriptor&) const;
};
+ // Parses the data in the frame buffer to fill in the picture descriptor. Copies
+ // the offset of the image data into start_of_data. Returns error if the parser fails.
+ Result_t ParseMetadataIntoDesc(const FrameBuffer&, PictureDescriptor&, byte_t* start_of_data = 0);
+
// An object which reads a sequence of files containing JPEG 2000 pictures.
class SequenceParser
{
// alphabetically by filename. The parser will automatically parse enough data
// from the first file to provide a complete set of stream metadata for the
// MXFWriter below. If the "pedantic" parameter is given and is true, the
- // parser will check the metadata for each codestream and fail if a
+ // parser will check the metadata for each codestream and fail if a
+ // mismatch is detected.
+ Result_t OpenRead(const std::string& filename, bool pedantic = false) const;
+
+ // Opens a file sequence for reading. The sequence is expected to contain one or
+ // more filenames, each naming a file containing the codestream for exactly one
+ // picture. The parser will automatically parse enough data
+ // from the first file to provide a complete set of stream metadata for the
+ // MXFWriter below. If the "pedantic" parameter is given and is true, the
+ // parser will check the metadata for each codestream and fail if a
// mismatch is detected.
- Result_t OpenRead(const char* filename, bool pedantic = false) const;
+ Result_t OpenRead(const std::list<std::string>& file_list, bool pedantic = false) const;
// Fill a PictureDescriptor struct with the values from the first file's codestream.
// Returns RESULT_INIT if the directory is not open.
MXFWriter();
virtual ~MXFWriter();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for writing. The file must not exist. Returns error if
// the operation cannot be completed or if nonsensical data is discovered
// in the essence descriptor.
- Result_t OpenWrite(const char* filename, const WriterInfo&,
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
const PictureDescriptor&, ui32_t HeaderSize = 16384);
// Writes a frame of essence to the MXF file. If the optional AESEncContext
MXFReader();
virtual ~MXFReader();
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
// Open the file for reading. The file must exist. Returns error if the
// operation cannot be completed.
- Result_t OpenRead(const char* filename) const;
+ Result_t OpenRead(const std::string& filename) const;
// Returns RESULT_INIT if the file is not open.
Result_t Close() const;
// out of range, or if optional decrypt or HAMC operations fail.
Result_t ReadFrame(ui32_t frame_number, FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_FRAME if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
+ // Print debugging information to stream
+ void DumpHeaderMetadata(FILE* = 0) const;
+ void DumpIndex(FILE* = 0) const;
+ };
+
+
+ // Stereoscopic Image support
+ //
+
+ enum StereoscopicPhase_t
+ {
+ SP_LEFT,
+ SP_RIGHT
+ };
+
+ struct SFrameBuffer
+ {
+ JP2K::FrameBuffer Left;
+ JP2K::FrameBuffer Right;
+
+ SFrameBuffer(ui32_t size) {
+ Left.Capacity(size);
+ Right.Capacity(size);
+ }
+ };
+
+ class MXFSWriter
+ {
+ class h__SWriter;
+ mem_ptr<h__SWriter> m_Writer;
+ ASDCP_NO_COPY_CONSTRUCT(MXFSWriter);
+
+ public:
+ MXFSWriter();
+ virtual ~MXFSWriter();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for writing. The file must not exist. Returns error if
+ // the operation cannot be completed or if nonsensical data is discovered
+ // in the essence descriptor.
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
+ const PictureDescriptor&, ui32_t HeaderSize = 16384);
+
+ // Writes a pair of frames of essence to the MXF file. If the optional AESEncContext
+ // argument is present, the essence is encrypted prior to writing.
+ // Fails if the file is not open, is finalized, or an operating system
+ // error occurs.
+ Result_t WriteFrame(const SFrameBuffer&, AESEncContext* = 0, HMACContext* = 0);
+
+ // Writes a frame of essence to the MXF file. If the optional AESEncContext
+ // argument is present, the essence is encrypted prior to writing.
+ // Fails if the file is not open, is finalized, or an operating system
+ // error occurs. Frames must be written in the proper phase (L-R-L-R),
+ // RESULT_SPHASE will be returned if phase is reversed. The first frame
+ // written must be left eye.
+ Result_t WriteFrame(const FrameBuffer&, StereoscopicPhase_t phase,
+ AESEncContext* = 0, HMACContext* = 0);
+
+ // Closes the MXF file, writing the index and revised header. Returns
+ // RESULT_SPHASE if WriteFrame was called an odd number of times.
+ Result_t Finalize();
+ };
+
+ //
+ class MXFSReader
+ {
+ class h__SReader;
+ mem_ptr<h__SReader> m_Reader;
+ ASDCP_NO_COPY_CONSTRUCT(MXFSReader);
+
+ public:
+ MXFSReader();
+ virtual ~MXFSReader();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for reading. The file must exist. Returns error if the
+ // operation cannot be completed.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Returns RESULT_INIT if the file is not open.
+ Result_t Close() const;
+
+ // Fill an AudioDescriptor struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillPictureDescriptor(PictureDescriptor&) const;
+
+ // Fill a WriterInfo struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillWriterInfo(WriterInfo&) const;
+
+ // Reads a pair of frames of essence from the MXF file. If the optional AESEncContext
+ // argument is present, the essence is decrypted after reading. If the MXF
+ // file is encrypted and the AESDecContext argument is NULL, the frame buffer
+ // will contain the ciphertext frame data. If the HMACContext argument is
+ // not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadFrame(ui32_t frame_number, SFrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Reads a frame of essence from the MXF file. If the optional AESEncContext
+ // argument is present, the essence is decrypted after reading. If the MXF
+ // file is encrypted and the AESDecContext argument is NULL, the frame buffer
+ // will contain the ciphertext frame data. If the HMACContext argument is
+ // not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadFrame(ui32_t frame_number, StereoscopicPhase_t phase,
+ FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_FRAME if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
// Print debugging information to stream
void DumpHeaderMetadata(FILE* = 0) const;
void DumpIndex(FILE* = 0) const;
};
} // namespace JP2K
+
+ //---------------------------------------------------------------------------------
+ //
+ namespace TimedText
+ {
+ enum MIMEType_t { MT_BIN, MT_PNG, MT_OPENTYPE };
+
+ struct TimedTextResourceDescriptor
+ {
+ byte_t ResourceID[UUIDlen];
+ MIMEType_t Type;
+
+ TimedTextResourceDescriptor() : Type(MT_BIN) {}
+ };
+
+ typedef std::list<TimedTextResourceDescriptor> ResourceList_t;
+
+ struct TimedTextDescriptor
+ {
+ Rational EditRate; //
+ ui32_t ContainerDuration;
+ byte_t AssetID[UUIDlen];
+ std::string NamespaceName;
+ std::string EncodingName;
+ ResourceList_t ResourceList;
+
+ TimedTextDescriptor() : ContainerDuration(0), EncodingName("UTF-8") {} // D-Cinema format is always UTF-8
+ };
+
+ // Print debugging information to std::ostream
+ std::ostream& operator << (std::ostream& strm, const TimedTextDescriptor& tinfo);
+ // Print debugging information to stream (stderr default)
+ void DescriptorDump(const TimedTextDescriptor&, FILE* = 0);
+
+ //
+ class FrameBuffer : public ASDCP::FrameBuffer
+ {
+ ASDCP_NO_COPY_CONSTRUCT(FrameBuffer); // TODO: should have copy construct
+
+ protected:
+ byte_t m_AssetID[UUIDlen];
+ std::string m_MIMEType;
+
+ public:
+ FrameBuffer() { memset(m_AssetID, 0, UUIDlen); }
+ FrameBuffer(ui32_t size) { Capacity(size); memset(m_AssetID, 0, UUIDlen); }
+ virtual ~FrameBuffer() {}
+
+ inline const byte_t* AssetID() const { return m_AssetID; }
+ inline void AssetID(const byte_t* buf) { memcpy(m_AssetID, buf, UUIDlen); }
+ inline const char* MIMEType() const { return m_MIMEType.c_str(); }
+ inline void MIMEType(const std::string& s) { m_MIMEType = s; }
+
+ // Print debugging information to stream (stderr default)
+ void Dump(FILE* = 0, ui32_t dump_bytes = 0) const;
+ };
+
+ // An abstract base for a lookup service that returns the resource data
+ // identified by the given ancillary resource id.
+ //
+ class IResourceResolver
+ {
+ public:
+ virtual ~IResourceResolver() {}
+ virtual Result_t ResolveRID(const byte_t* uuid, FrameBuffer&) const = 0; // return data for RID
+ };
+
+ // Resolves resource references by testing the named directory for file names containing
+ // the respective UUID.
+ //
+ class LocalFilenameResolver : public ASDCP::TimedText::IResourceResolver
+ {
+ std::string m_Dirname;
+ ASDCP_NO_COPY_CONSTRUCT(LocalFilenameResolver);
+
+ public:
+ LocalFilenameResolver();
+ virtual ~LocalFilenameResolver();
+ Result_t OpenRead(const std::string& dirname);
+ Result_t ResolveRID(const byte_t* uuid, FrameBuffer& FrameBuf) const;
+ };
+
+ //
+ class DCSubtitleParser
+ {
+ class h__SubtitleParser;
+ mem_ptr<h__SubtitleParser> m_Parser;
+ ASDCP_NO_COPY_CONSTRUCT(DCSubtitleParser);
+
+ public:
+ DCSubtitleParser();
+ virtual ~DCSubtitleParser();
+
+ // Opens an XML file for reading, parses data to provide a complete
+ // set of stream metadata for the MXFWriter below.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Parses an XML document to provide a complete set of stream metadata
+ // for the MXFWriter below. The optional filename argument is used to
+ // initialize the default resource resolver (see ReadAncillaryResource).
+ Result_t OpenRead(const std::string& xml_doc, const std::string& filename) const;
+
+ // Fill a TimedTextDescriptor struct with the values from the file's contents.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillTimedTextDescriptor(TimedTextDescriptor&) const;
+
+ // Reads the complete Timed Text Resource into the given string.
+ Result_t ReadTimedTextResource(std::string&) const;
+
+ // Reads the Ancillary Resource having the given ID. Fails if the buffer
+ // is too small or the resource does not exist. The optional Resolver
+ // argument can be provided which will be used to retrieve the resource
+ // having a particulat UUID. If a Resolver is not supplied, the default
+ // internal resolver will return the contents of the file having the UUID
+ // as the filename. The filename must exist in the same directory as the
+ // XML file opened with OpenRead().
+ Result_t ReadAncillaryResource(const byte_t* uuid, FrameBuffer&,
+ const IResourceResolver* Resolver = 0) const;
+ };
+
+ //
+ class MXFWriter
+ {
+ class h__Writer;
+ mem_ptr<h__Writer> m_Writer;
+ ASDCP_NO_COPY_CONSTRUCT(MXFWriter);
+
+ public:
+ MXFWriter();
+ virtual ~MXFWriter();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for writing. The file must not exist. Returns error if
+ // the operation cannot be completed or if nonsensical data is discovered
+ // in the essence descriptor.
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
+ const TimedTextDescriptor&, ui32_t HeaderSize = 16384);
+
+ // Writes the Timed-Text Resource to the MXF file. The file must be UTF-8
+ // encoded. If the optional AESEncContext argument is present, the essence
+ // is encrypted prior to writing. Fails if the file is not open, is finalized,
+ // or an operating system error occurs.
+ // This method may only be called once, and it must be called before any
+ // call to WriteAncillaryResource(). RESULT_STATE will be returned if these
+ // conditions are not met.
+ Result_t WriteTimedTextResource(const std::string& XMLDoc, AESEncContext* = 0, HMACContext* = 0);
+
+ // Writes an Ancillary Resource to the MXF file. If the optional AESEncContext
+ // argument is present, the essence is encrypted prior to writing.
+ // Fails if the file is not open, is finalized, or an operating system
+ // error occurs. RESULT_STATE will be returned if the method is called before
+ // WriteTimedTextResource()
+ Result_t WriteAncillaryResource(const FrameBuffer&, AESEncContext* = 0, HMACContext* = 0);
+
+ // Closes the MXF file, writing the index and revised header.
+ Result_t Finalize();
+ };
+
+ //
+ class MXFReader
+ {
+ class h__Reader;
+ mem_ptr<h__Reader> m_Reader;
+ ASDCP_NO_COPY_CONSTRUCT(MXFReader);
+
+ public:
+ MXFReader();
+ virtual ~MXFReader();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for reading. The file must exist. Returns error if the
+ // operation cannot be completed.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Returns RESULT_INIT if the file is not open.
+ Result_t Close() const;
+
+ // Fill a TimedTextDescriptor struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillTimedTextDescriptor(TimedTextDescriptor&) const;
+
+ // Fill a WriterInfo struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillWriterInfo(WriterInfo&) const;
+
+ // Reads the complete Timed Text Resource into the given string. Fails if the resource
+ // is encrypted and AESDecContext is NULL (use the following method to retrieve the
+ // raw ciphertet block).
+ Result_t ReadTimedTextResource(std::string&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Reads the complete Timed Text Resource from the MXF file. If the optional AESEncContext
+ // argument is present, the resource is decrypted after reading. If the MXF
+ // file is encrypted and the AESDecContext argument is NULL, the frame buffer
+ // will contain the ciphertext frame data. If the HMACContext argument is
+ // not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadTimedTextResource(FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Reads the timed-text resource having the given UUID from the MXF file. If the
+ // optional AESEncContext argument is present, the resource is decrypted after
+ // reading. If the MXF file is encrypted and the AESDecContext argument is NULL,
+ // the frame buffer will contain the ciphertext frame data. If the HMACContext
+ // argument is not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadAncillaryResource(const byte_t* uuid, FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Print debugging information to stream
+ void DumpHeaderMetadata(FILE* = 0) const;
+ void DumpIndex(FILE* = 0) const;
+ };
+ } // namespace TimedText
+
+ //---------------------------------------------------------------------------------
+ //
+ namespace DCData
+ {
+ struct DCDataDescriptor
+ {
+ Rational EditRate; // Sample rate
+ ui32_t ContainerDuration; // number of frames
+ byte_t AssetID[UUIDlen]; // The UUID for the DCData track
+ byte_t DataEssenceCoding[UUIDlen]; // The coding for the data carried
+ };
+
+ // Print DCDataDescriptor to std::ostream
+ std::ostream& operator << (std::ostream& strm, const DCDataDescriptor& ddesc);
+ // Print debugging information to stream (stderr default)
+ void DCDataDescriptorDump(const DCDataDescriptor&, FILE* = 0);
+
+ //
+ class FrameBuffer : public ASDCP::FrameBuffer
+ {
+ public:
+ FrameBuffer() {}
+ FrameBuffer(ui32_t size) { Capacity(size); }
+ virtual ~FrameBuffer() {}
+
+ // Print debugging information to stream (stderr default)
+ void Dump(FILE* = 0, ui32_t dump_bytes = 0) const;
+ };
+
+ // An object which opens and reads a DC Data file. The file is expected
+ // to contain exactly one complete frame of DC data essence as an unwrapped (raw)
+ // byte stream.
+ class BytestreamParser
+ {
+ class h__BytestreamParser;
+ mem_ptr<h__BytestreamParser> m_Parser;
+ ASDCP_NO_COPY_CONSTRUCT(BytestreamParser);
+
+ public:
+ BytestreamParser();
+ virtual ~BytestreamParser();
+
+ // Opens a file for reading, parses enough data to provide a complete
+ // set of stream metadata for the MXFWriter below.
+ // The frame buffer's PlaintextOffset parameter will be set to the first
+ // byte of the data segment. Set this value to zero if you want
+ // encrypted headers.
+ Result_t OpenReadFrame(const std::string& filename, FrameBuffer&) const;
+
+ // Fill a DCDataDescriptor struct with the values from the file's bytestream.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillDCDataDescriptor(DCDataDescriptor&) const;
+ };
+
+ // An object which reads a sequence of files containing DC Data.
+ class SequenceParser
+ {
+ class h__SequenceParser;
+ mem_ptr<h__SequenceParser> m_Parser;
+ ASDCP_NO_COPY_CONSTRUCT(SequenceParser);
+
+ public:
+ SequenceParser();
+ virtual ~SequenceParser();
+
+ // Opens a directory for reading. The directory is expected to contain one or
+ // more files, each containing the bytestream for exactly one frame. The files
+ // must be named such that the frames are in temporal order when sorted
+ // alphabetically by filename.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Opens a file sequence for reading. The sequence is expected to contain one or
+ // more filenames, each naming a file containing the bytestream for exactly one
+ // frame.
+ Result_t OpenRead(const std::list<std::string>& file_list) const;
+
+ // Fill a DCDataDescriptor struct with default values.
+ // Returns RESULT_INIT if the directory is not open.
+ Result_t FillDCDataDescriptor(DCDataDescriptor&) const;
+
+ // Rewind the directory to the beginning.
+ Result_t Reset() const;
+
+ // Reads the next sequential frame in the directory and places it in the
+ // frame buffer. Fails if the buffer is too small or the direcdtory
+ // contains no more files.
+ // The frame buffer's PlaintextOffset parameter will be set to the first
+ // byte of the data segment. Set this value to zero if you want
+ // encrypted headers.
+ Result_t ReadFrame(FrameBuffer&) const;
+ };
+
+ //
+ class MXFWriter
+ {
+ class h__Writer;
+ mem_ptr<h__Writer> m_Writer;
+ ASDCP_NO_COPY_CONSTRUCT(MXFWriter);
+
+ public:
+ MXFWriter();
+ virtual ~MXFWriter();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for writing. The file must not exist. Returns error if
+ // the operation cannot be completed or if nonsensical data is discovered
+ // in the essence descriptor.
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
+ const DCDataDescriptor&, ui32_t HeaderSize = 16384);
+
+ // Writes a frame of essence to the MXF file. If the optional AESEncContext
+ // argument is present, the essence is encrypted prior to writing.
+ // Fails if the file is not open, is finalized, or an operating system
+ // error occurs.
+ Result_t WriteFrame(const FrameBuffer&, AESEncContext* = 0, HMACContext* = 0);
+
+ // Closes the MXF file, writing the index and revised header.
+ Result_t Finalize();
+ };
+
+ //
+ class MXFReader
+ {
+ class h__Reader;
+ mem_ptr<h__Reader> m_Reader;
+ ASDCP_NO_COPY_CONSTRUCT(MXFReader);
+
+ public:
+ MXFReader();
+ virtual ~MXFReader();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for reading. The file must exist. Returns error if the
+ // operation cannot be completed.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Returns RESULT_INIT if the file is not open.
+ Result_t Close() const;
+
+ // Fill a DCDataDescriptor struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillDCDataDescriptor(DCDataDescriptor&) const;
+
+ // Fill a WriterInfo struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillWriterInfo(WriterInfo&) const;
+
+ // Reads a frame of essence from the MXF file. If the optional AESEncContext
+ // argument is present, the essence is decrypted after reading. If the MXF
+ // file is encrypted and the AESDecContext argument is NULL, the frame buffer
+ // will contain the ciphertext frame data. If the HMACContext argument is
+ // not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadFrame(ui32_t frame_number, FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_RANGE if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
+ // Print debugging information to stream
+ void DumpHeaderMetadata(FILE* = 0) const;
+ void DumpIndex(FILE* = 0) const;
+ };
+
+ } // namespace DCData
+
+ //---------------------------------------------------------------------------------
+ //
+ namespace ATMOS
+ {
+ struct AtmosDescriptor : public DCData::DCDataDescriptor
+ {
+ ui32_t FirstFrame; // Frame number of the frame to align with the FFOA of the picture track
+ ui16_t MaxChannelCount; // Max number of channels in bitstream
+ ui16_t MaxObjectCount; // Max number of objects in bitstream
+ byte_t AtmosID[UUIDlen]; // UUID of Atmos Project
+ ui8_t AtmosVersion; // ATMOS Coder Version used to create bitstream
+ };
+
+ // Print AtmosDescriptor to std::ostream
+ std::ostream& operator << (std::ostream& strm, const AtmosDescriptor& adesc);
+ // Print debugging information to stream (stderr default)
+ void AtmosDescriptorDump(const AtmosDescriptor&, FILE* = 0);
+ // Determine if a file is a raw atmos file
+ bool IsDolbyAtmos(const std::string& filename);
+
+ //
+ class MXFWriter
+ {
+
+ class h__Writer;
+ mem_ptr<h__Writer> m_Writer;
+ ASDCP_NO_COPY_CONSTRUCT(MXFWriter);
+
+ public:
+ MXFWriter();
+ virtual ~MXFWriter();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for writing. The file must not exist. Returns error if
+ // the operation cannot be completed or if nonsensical data is discovered
+ // in the essence descriptor.
+ Result_t OpenWrite(const std::string& filename, const WriterInfo&,
+ const AtmosDescriptor&, ui32_t HeaderSize = 16384);
+
+ // Writes a frame of essence to the MXF file. If the optional AESEncContext
+ // argument is present, the essence is encrypted prior to writing.
+ // Fails if the file is not open, is finalized, or an operating system
+ // error occurs.
+ Result_t WriteFrame(const DCData::FrameBuffer&, AESEncContext* = 0, HMACContext* = 0);
+
+ // Closes the MXF file, writing the index and revised header.
+ Result_t Finalize();
+ };
+
+ //
+ class MXFReader
+ {
+ class h__Reader;
+ mem_ptr<h__Reader> m_Reader;
+ ASDCP_NO_COPY_CONSTRUCT(MXFReader);
+
+ public:
+ MXFReader();
+ virtual ~MXFReader();
+
+ // Warning: direct manipulation of MXF structures can interfere
+ // with the normal operation of the wrapper. Caveat emptor!
+ virtual MXF::OP1aHeader& OP1aHeader();
+ virtual MXF::OPAtomIndexFooter& OPAtomIndexFooter();
+ virtual MXF::RIP& RIP();
+
+ // Open the file for reading. The file must exist. Returns error if the
+ // operation cannot be completed.
+ Result_t OpenRead(const std::string& filename) const;
+
+ // Returns RESULT_INIT if the file is not open.
+ Result_t Close() const;
+
+ // Fill an AtmosDescriptor struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillAtmosDescriptor(AtmosDescriptor&) const;
+
+ // Fill a WriterInfo struct with the values from the file's header.
+ // Returns RESULT_INIT if the file is not open.
+ Result_t FillWriterInfo(WriterInfo&) const;
+
+ // Reads a frame of essence from the MXF file. If the optional AESEncContext
+ // argument is present, the essence is decrypted after reading. If the MXF
+ // file is encrypted and the AESDecContext argument is NULL, the frame buffer
+ // will contain the ciphertext frame data. If the HMACContext argument is
+ // not NULL, the HMAC will be calculated (if the file supports it).
+ // Returns RESULT_INIT if the file is not open, failure if the frame number is
+ // out of range, or if optional decrypt or HAMC operations fail.
+ Result_t ReadFrame(ui32_t frame_number, DCData::FrameBuffer&, AESDecContext* = 0, HMACContext* = 0) const;
+
+ // Using the index table read from the footer partition, lookup the frame number
+ // and return the offset into the file at which to read that frame of essence.
+ // Returns RESULT_INIT if the file is not open, and RESULT_RANGE if the frame number is
+ // out of range.
+ Result_t LocateFrame(ui32_t FrameNum, Kumu::fpos_t& streamOffset, i8_t& temporalOffset, i8_t& keyFrameOffset) const;
+
+ // Print debugging information to stream
+ void DumpHeaderMetadata(FILE* = 0) const;
+ void DumpIndex(FILE* = 0) const;
+ };
+
+ } // namespace ATMOS
+
+
+
} // namespace ASDCP
projects / asdcplib.git / blobdiff