Bundle libsamplerate
[audio-libsamplerate.git] / libsamplerate / doc / api.html
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2 <HTML>
3
4 <HEAD>
5 <TITLE>
6 Secret Rabbit Code (aka libsamplerate)
7 </TITLE>
8 <META NAME="Author" CONTENT="Erik de Castro Lopo (erikd AT mega-nerd DOT com)">
9 <META NAME="Version" CONTENT="libsamplerate-0.1.8">
10 <META NAME="Description" CONTENT="The Secret Rabbit Code Home Page">
11 <META NAME="Keywords" CONTENT="libsamplerate sound resample audio dsp Linux">
12 <LINK REL=StyleSheet HREF="SRC.css" TYPE="text/css" MEDIA="all">
13 </HEAD>
14
15 <BODY TEXT="#FFFFFF" BGCOLOR="#000000" LINK="#FB1465" VLINK="#FB1465" ALINK="#FB1465">
16 <!-- pepper -->
17 <CENTER>
18 <IMG SRC="SRC.png" HEIGHT=100 WIDTH=760 ALT="SRC.png">
19 </CENTER>
20 <!-- pepper -->
21 <BR>
22 <!-- pepper -->
23 <TABLE ALIGN="center" WIDTH="98%">
24 <TR>
25 <TD VALIGN="top">
26 <BR>
27 <DIV CLASS="nav">
28 <BR>
29 <A HREF="index.html">Home</A><BR>
30 <A HREF="license.html">License</A><BR>
31 <A HREF="history.html">History</A><BR>
32 <A HREF="download.html">Download</A><BR>
33 <A HREF="quality.html">Quality</A><BR>
34 <A HREF="api.html">API</A><BR>
35 <A HREF="bugs.html">Bug Reporting</A><BR>
36 <A HREF="win32.html">On Win32</A><BR>
37 <A HREF="faq.html">FAQ</A><BR>
38 <A HREF="lists.html">Mailing Lists</A><BR>
39 <A HREF="ChangeLog">ChangeLog</A><BR>
40 <BR>
41 <DIV CLASS="block">
42 Author :<BR>Erik de Castro Lopo
43 <!-- pepper -->
44 <BR><BR>
45 <!-- pepper -->
46
47 </DIV>
48 <IMG SRC=
49 "/cgi-bin/Count.cgi?ft=6|frgb=55;55;55|tr=0|md=6|dd=B|st=1|sh=1|df=src_api.dat"
50 HEIGHT=30 WIDTH=100 ALT="counter.gif">
51 </DIV>
52
53 </TD>
54 <!-- pepper -->
55 <!-- ######################################################################## -->
56 <!-- pepper -->
57 <TD VALIGN="top">
58 <DIV CLASS="block">
59
60 <H1><B>Applications Programming Interface</B></H1>
61 <P>
62 The publically callable functions of libsamplerate are all listed in the
63 <B>&lt;samplerate.h&gt;</B> header file.
64 In order to use any of the functionality of libsamplerate, you need to add
65 </P>
66 <PRE>
67 #include &lt;samplerate.h&gt;
68 </PRE>
69 <P>
70 to the top of any function that call any of the following functions.
71 You will also need to link you binary with the libsamplerate library.
72 </P>
73 <P>
74 The API allows three methods for accessing the capabilies of the library:
75 </P>
76 <UL>
77 <LI>A <A HREF="api_simple.html">simple interface</A> which can sample rate convert
78 a single block of samples (one or more channels) in one go.
79 The simple API is less capable than the full API.
80 <LI>A <A HREF="api_full.html">more fully featured interface</A> which allows time
81 varying sample rate conversion on streaming data (again one or more
82 channels).
83 <LI>A <A HREF="api_callback.html">callback interface</A> which has the same
84 functionality as the interface above but allows the details of input and
85 output to be separated.
86 The output is generated by call a read function and the library calls a user
87 supplied callback function to obtain its input.
88 This interface is particularly well suited to applications where the output
89 sample rate is varied with time.
90 </UL>
91
92 <P>
93 <b>NB :</b> All three access methods are able to process multi channel interleaved
94 data.
95 </P>
96
97 <P>
98 The parts of the API which are common to all three interfaces are:
99 </P>
100 <UL>
101 <LI> The <A HREF="api_misc.html#ErrorReporting">error reporting</A> mechanisim.
102 <LI> The available <A HREF="api_misc.html#Converters">converter</A> types.
103 <LI> The <A HREF="api_misc.html#SRC_DATA">SRC_DATA</A> struct.
104 </UL>
105 <P>
106 All three versions of the API are restricted to operating on buffers of ISO C
107 Standard <B>float</B> data.
108 However, there are two
109 <A HREF="api_misc.html#Aux">auxillary functions</A>
110 for converting arrays of float data to and from short data.
111 </P>
112
113 <P>
114 <B>Note:</B> The <B>tests/</B> and <B>examples/</B> directories of the source code
115 distribution contain numerous example programs showing the use of the library.
116 </P>
117
118 <!-- pepper -->
119 <!-- <A HREF="mailto:aldel0305@mega-nerd.com">For the spam bots</A> -->
120 <!-- pepper -->
121
122 </DIV>
123 </TD></TR>
124 </TABLE>
125
126 </BODY>
127 </HTML>
This page took 0.023093 seconds and 4 git commands to generate.