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Add null config files
author Chris Cannam <cannam@all-day-breakfast.com>
date Mon, 02 Mar 2020 14:03:47 +0000 (2020-03-02)
parents cd6cdf86811e
children
rev   line source
cannam@125 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
cannam@125 2 <HTML>
cannam@125 3
cannam@125 4 <HEAD>
cannam@125 5 <TITLE>
cannam@125 6 libsndfile : Embedded Sound Files.
cannam@125 7 </TITLE>
cannam@125 8 <META NAME="Author" CONTENT="Erik de Castro Lopo (erikd AT mega-nerd DOT com)">
cannam@125 9 <META NAME="Description" CONTENT="The libsndfile API.">
cannam@125 10 <META NAME="Keywords" CONTENT="WAV AIFF AU libsndfile sound audio dsp Linux">
cannam@125 11 <LINK REL="stylesheet" HREF="libsndfile.css" TYPE="text/css" MEDIA="all">
cannam@125 12 <LINK REL="stylesheet" HREF="print.css" TYPE="text/css" MEDIA="print">
cannam@125 13 </HEAD>
cannam@125 14 <!-- pepper -->
cannam@125 15 <BODY>
cannam@125 16 <!-- pepper -->
cannam@125 17 <H1><B>Embedded Sound Files.</B></H1>
cannam@125 18
cannam@125 19 <P>
cannam@125 20 By using the open SNDFILE with a file descriptor function:
cannam@125 21 </P>
cannam@125 22 <!-- pepper -->
cannam@125 23 <PRE>
cannam@125 24 SNDFILE* sf_open_fd (int fd, int mode, SF_INFO *sfinfo, int close_desc) ;
cannam@125 25 </PRE>
cannam@125 26 <!-- pepper -->
cannam@125 27 <P>
cannam@125 28 it is possible to open sound files embedded within larger files.
cannam@125 29 There are however a couple of caveats:
cannam@125 30 <P>
cannam@125 31 <!-- pepper -->
cannam@125 32 <UL>
cannam@125 33 <LI> Read/Write mode (SFM_RDWR) is not supported.
cannam@125 34 <LI> Writing of embedded files is only supported at the end of the file.
cannam@125 35 <LI> Reading of embedded files is only supported at file offsets greater
cannam@125 36 than zero.
cannam@125 37 <LI> Not all file formats are supported (currently only WAV, AIFF and AU).
cannam@125 38 </UL>
cannam@125 39 <!-- pepper -->
cannam@125 40 <P>
cannam@125 41 The test program <B>multi_file_test.c</B> in the <B>tests/</B> directory of the
cannam@125 42 source code tarball shows how this functionality is used to read and write
cannam@125 43 embedded files.
cannam@125 44 </P>
cannam@125 45 <!-- pepper -->
cannam@125 46 </BODY>
cannam@125 47 </HTML>