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SDIF-Buffer

The class SDIF-BUFFER allows to gather SDIF objects and makes the connection with “real” SDIF files.

An SDIF-Buffer contains :

• A list of SDIF Frames or SDIF Streams
• A list of SDIFTypes (type declarations)
• A list of Name/Value tables

More about the SDIF classes (SDIFFrame, SDIFType, SDIFNVT…)

• SDIF Classes

The SDIF-BUFFER and its contents can then be saved in a file using SAVE-SDIF- FILE.

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Iterative SDIF file Writing using the File-Box

SDIF data can also be written in a file using the File-Box tool.

This alternative avoids storing large sets of data in your OM patches and write generated SDIF data on-the-fly during an iterative process.

How to use the File-Box

• File-Box : Iterative File Input/Output Processes

SDIF Write Tools in the File-Box

In order to write data in an SDIF file, the STREAMFILE pointer must be set to “SDIF” first.

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The process must then start with a call to SDIF-WRITE-HEADER connected to this pointer (see picture above). SDIF-WRITE-HEADER will write type declarations and name/value tables in the file header, but also some other general data, so it must be called even if there is no type or NVT to write.

Use SDIF-WRITE-FRAME in the rest of your program in order to write the sequence of SDIF frames in the file.

References :

Contents :

• OpenMusic Documentation
• OM User Manual
  • Introduction
  • System Configuration and Installation
  • Going Through an OM Session
  • The OM Environment
  • Visual Programming I
  • Visual Programming II
  • Basic Tools
  • Score Objects
  • Maquettes
  • Sheet
  • MIDI
  • Audio
  • SDIF
    • Introduction to SDIF
    • SDIFFile
    • Accessing SDIF Data
    • SDIF Classes
    • Writing SDIF Files
  • Lisp Programming
  • Errors and Problems
• OpenMusic QuickStart

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