libsndfile/doc/embedded_files.html

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   6         libsndfile : Embedded Sound Files.
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   8         <META NAME="Author"      CONTENT="Erik de Castro Lopo (erikd AT zip DOT com DOT au)">
   9         <META NAME="Version"     CONTENT="Version 1.0.5">
  10         <META NAME="Description" CONTENT="The libsndfile API.">
  11         <META NAME="Keywords"    CONTENT="WAV AIFF AU libsndfile sound audio dsp Linux">
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  17 <H1><B>Embedded Sound Files.</B></H1>
  18
  19 <P>
  20 By using the open SNDFILE with a file descriptor function:
  21 </P>
  22
  23 <PRE>
  24       SNDFILE*  sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) ;
  25 </PRE>
  26
  27 <P>
  28 it is possible to open sound files embedded within larger files.
  29 There are however a couple of caveats:
  30 <P>
  31
  32 <UL>
  33         <LI> Read/Write mode (SFM_RDWR) is not supported.
  34         <LI> Writing of embedded files is only supported at the end of the file.
  35         <LI> Reading of embedded files is only supported at file offsets greater
  36                         than zero.
  37         <LI> Not all file formats are supported (currently only WAV, AIFF and AU).
  38 </UL>
  39
  40 <P>
  41 The test program <B>multi_file.c</B> in the <B>tests/</B> directory of the
  42 source code tarball shows how this functionality is used to read and write
  43 embedded files.
  44 </P>
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