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FS-4657 --resolve update libsndfile to its latest master

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This commit is contained in:
Jeff Lenk
2014-02-21 16:09:43 -06:00
parent 0c1f6ef2ed
commit 199a64bf6a
291 changed files with 25966 additions and 5745 deletions
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149
libs/libsndfile/examples/sfprocess.c
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@@ -1,5 +1,5 @@
/*
** Copyright (C) 2001-2009 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2001-2013 Erik de Castro Lopo <erikd@mega-nerd.com>
**
** All rights reserved.
**
@@ -7,15 +7,15 @@
** modification, are permitted provided that the following conditions are
** met:
**
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the author nor the names of any contributors may be used
** to endorse or promote products derived from this software without
** specific prior written permission.
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the author nor the names of any contributors may be used
** to endorse or promote products derived from this software without
** specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
@@ -31,12 +31,13 @@
*/
#include <stdio.h>
#include <string.h>
/* Include this header file to use functions from libsndfile. */
#include <sndfile.h>
/* This will be the length of the buffer used to hold.frames while
** we process them.
/* This will be the length of the buffer used to hold.frames while
** we process them.
*/
#define BUFFER_LEN 1024
@@ -49,31 +50,35 @@ static void process_data (double *data, int count, int channels) ;
int
main (void)
{ /* This is a buffer of double precision floating point values
** which will hold our data while we process it.
*/
static double data [BUFFER_LEN] ;
{ /* This is a buffer of double precision floating point values
** which will hold our data while we process it.
*/
static double data [BUFFER_LEN] ;
/* A SNDFILE is very much like a FILE in the Standard C library. The
** sf_open function return an SNDFILE* pointer when they sucessfully
/* A SNDFILE is very much like a FILE in the Standard C library. The
** sf_open function return an SNDFILE* pointer when they sucessfully
** open the specified file.
*/
SNDFILE *infile, *outfile ;
*/
SNDFILE *infile, *outfile ;
/* A pointer to an SF_INFO stutct is passed to sf_open.
** On read, the library fills this struct with information about the file.
** On write, the struct must be filled in before calling sf_open.
*/
SF_INFO sfinfo ;
int readcount ;
const char *infilename = "input.wav" ;
const char *outfilename = "output.wav" ;
/* A pointer to an SF_INFO struct is passed to sf_open.
** On read, the library fills this struct with information about the file.
** On write, the struct must be filled in before calling sf_open.
*/
SF_INFO sfinfo ;
int readcount ;
const char *infilename = "input.wav" ;
const char *outfilename = "output.wav" ;
/* Here's where we open the input file. We pass sf_open the file name and
** a pointer to an SF_INFO struct.
** On successful open, sf_open returns a SNDFILE* pointer which is used
** for all subsequent operations on that file.
** If an error occurs during sf_open, the function returns a NULL pointer.
/* The SF_INFO struct must be initialized before using it.
*/
memset (&sfinfo, 0, sizeof (sfinfo)) ;
/* Here's where we open the input file. We pass sf_open the file name and
** a pointer to an SF_INFO struct.
** On successful open, sf_open returns a SNDFILE* pointer which is used
** for all subsequent operations on that file.
** If an error occurs during sf_open, the function returns a NULL pointer.
**
** If you are trying to open a raw headerless file you will need to set the
** format and channels fields of sfinfo before calling sf_open(). For
@@ -82,56 +87,56 @@ main (void)
**
** sfinfo.format = SF_FORMAT_RAW | SF_FORMAT_PCM_16 ;
** sfinfo.channels = 2 ;
*/
if (! (infile = sf_open (infilename, SFM_READ, &sfinfo)))
{ /* Open failed so print an error message. */
printf ("Not able to open input file %s.\n", infilename) ;
/* Print the error message from libsndfile. */
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
*/
if (! (infile = sf_open (infilename, SFM_READ, &sfinfo)))
{ /* Open failed so print an error message. */
printf ("Not able to open input file %s.\n", infilename) ;
/* Print the error message from libsndfile. */
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
if (sfinfo.channels > MAX_CHANNELS)
{ printf ("Not able to process more than %d channels\n", MAX_CHANNELS) ;
return 1 ;
} ;
/* Open the output file. */
if (! (outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)))
{ printf ("Not able to open output file %s.\n", outfilename) ;
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
if (sfinfo.channels > MAX_CHANNELS)
{ printf ("Not able to process more than %d channels\n", MAX_CHANNELS) ;
return 1 ;
} ;
/* Open the output file. */
if (! (outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)))
{ printf ("Not able to open output file %s.\n", outfilename) ;
puts (sf_strerror (NULL)) ;
return 1 ;
} ;
/* While there are.frames in the input file, read them, process
** them and write them to the output file.
*/
while ((readcount = sf_read_double (infile, data, BUFFER_LEN)))
{ process_data (data, readcount, sfinfo.channels) ;
sf_write_double (outfile, data, readcount) ;
} ;
/* While there are.frames in the input file, read them, process
** them and write them to the output file.
*/
while ((readcount = sf_read_double (infile, data, BUFFER_LEN)))
{ process_data (data, readcount, sfinfo.channels) ;
sf_write_double (outfile, data, readcount) ;
} ;
/* Close input and output files. */
sf_close (infile) ;
sf_close (outfile) ;
/* Close input and output files. */
sf_close (infile) ;
sf_close (outfile) ;
return 0 ;
return 0 ;
} /* main */
static void
process_data (double *data, int count, int channels)
{ double channel_gain [MAX_CHANNELS] = { 0.5, 0.8, 0.1, 0.4, 0.4, 0.9 } ;
int k, chan ;
int k, chan ;
/* Process the data here.
** If the soundfile contains more then 1 channel you need to take care of
** the data interleaving youself.
** Current we just apply a channel dependant gain.
*/
/* Process the data here.
** If the soundfile contains more then 1 channel you need to take care of
** the data interleaving youself.
** Current we just apply a channel dependant gain.
*/
for (chan = 0 ; chan < channels ; chan ++)
for (k = chan ; k < count ; k+= channels)
data [k] *= channel_gain [chan] ;
for (chan = 0 ; chan < channels ; chan ++)
for (k = chan ; k < count ; k+= channels)
data [k] *= channel_gain [chan] ;
return ;
return ;
} /* process_data */