/*
-Copyright (c) 2003-2013, John Hurst
+Copyright (c) 2003-2018, John Hurst
All rights reserved.
Redistribution and use in source and binary forms, with or without
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 series of separate documents which include but may not
+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 429-5:2009 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
The following use cases are supported by the library:
o Write essence to 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
- Proposed SMPTE Aux Data track file
- Proposed Dolby (TM) Atmos track 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
- Proposed SMPTE Aux Data track file
+ Aux Data (frame-wrapped synchronous blob)
Proposed Dolby (TM) Atmos track file
o Read header metadata from an AS-DCP file
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
};
}
};
+ // 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 = Rational(24,1);
const Rational EditRate_23_98 = Rational(24000,1001); // Not a DCI-compliant value!
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
// 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;
};
const ui32_t MaxComponents = 3;
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 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 CorrespondingProfile_t // ISO 15444-1
+ {
+ 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
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
public:
LocalFilenameResolver();
+ virtual ~LocalFilenameResolver();
Result_t OpenRead(const std::string& dirname);
Result_t ResolveRID(const byte_t* uuid, FrameBuffer& FrameBuf) const;
};
projects / asdcplib.git / blobdiff