Do our own resampling

1 files changed, 0 insertions, 234 deletions

diff --git a/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c b/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c
deleted file mode 100755
index 4f9f3fa7..00000000
--- a/lib/libsamplerate/libsamplerate-0.2.2/examples/timewarp-file.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
-** Copyright (c) 2005-2016, Erik de Castro Lopo <erikd@mega-nerd.com>
-** All rights reserved.
-**
-** This code is released under 2-clause BSD license. Please see the
-** file at : https://github.com/libsndfile/libsamplerate/blob/master/COPYING
-*/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <string.h>
-#include <math.h>
-
-#if (HAVE_SNDFILE)
-
-#include <samplerate.h>
-#include <sndfile.h>
-
-#define ARRAY_LEN(x)	((int) (sizeof (x) / sizeof ((x) [0])))
-
-#define DEFAULT_CONVERTER 	SRC_SINC_MEDIUM_QUALITY
-
-#define	BUFFER_LEN			1024
-#define	INPUT_STEP_SIZE		8
-
-typedef struct
-{	sf_count_t	index ;
-	double		ratio ;
-} TIMEWARP_FACTOR ;
-
-static void usage_exit (const char *progname) ;
-static sf_count_t timewarp_convert (SNDFILE *infile, SNDFILE *outfile, int converter, int channels) ;
-
-int
-main (int argc, char *argv [])
-{	SNDFILE	*infile, *outfile ;
-	SF_INFO sfinfo ;
-	sf_count_t	count ;
-
-	if (argc != 3)
-		usage_exit (argv [0]) ;
-
-	putchar ('\n') ;
-	printf ("Input File    : %s\n", argv [argc - 2]) ;
-	if ((infile = sf_open (argv [argc - 2], SFM_READ, &sfinfo)) == NULL)
-	{	printf ("Error : Not able to open input file '%s'\n", argv [argc - 2]) ;
-		exit (1) ;
-		} ;
-
-	if (INPUT_STEP_SIZE * sfinfo.channels > BUFFER_LEN)
-	{	printf ("\n\nError : INPUT_STEP_SIZE * sfinfo.channels > BUFFER_LEN\n\n") ;
-		exit (1) ;
-		} ;
-
-
-	/* Delete the output file length to zero if already exists. */
-	remove (argv [argc - 1]) ;
-
-	if ((outfile = sf_open (argv [argc - 1], SFM_WRITE, &sfinfo)) == NULL)
-	{	printf ("Error : Not able to open output file '%s'\n", argv [argc - 1]) ;
-		sf_close (infile) ;
-		exit (1) ;
-		} ;
-
-	sf_command (outfile, SFC_SET_CLIPPING, NULL, SF_TRUE) ;
-
-	printf ("Output file   : %s\n", argv [argc - 1]) ;
-	printf ("Converter     : %s\n", src_get_name (DEFAULT_CONVERTER)) ;
-
-	count = timewarp_convert (infile, outfile, DEFAULT_CONVERTER, sfinfo.channels) ;
-
-	printf ("Output Frames : %ld\n\n", (long) count) ;
-
-	sf_close (infile) ;
-	sf_close (outfile) ;
-
-	return 0 ;
-} /* main */
-
-/*==============================================================================
-*/
-
-static TIMEWARP_FACTOR warp [] =
-{	{	0		, 1.00000001 },
-	{	20000	, 1.01000000 },
-	{	20200	, 1.00000001 },
-	{	40000	, 1.20000000 },
-	{	40300	, 1.00000001 },
-	{	60000	, 1.10000000 },
-	{	60400	, 1.00000001 },
-	{	80000	, 1.50000000 },
-	{	81000	, 1.00000001 },
-} ;
-
-static sf_count_t
-timewarp_convert (SNDFILE *infile, SNDFILE *outfile, int converter, int channels)
-{	static float input [BUFFER_LEN] ;
-	static float output [BUFFER_LEN] ;
-
-	SRC_STATE	*src_state ;
-	SRC_DATA	src_data ;
-	int			error, warp_index = 0 ;
-	sf_count_t	input_count = 0, output_count = 0 ;
-
-	sf_seek (infile, 0, SEEK_SET) ;
-	sf_seek (outfile, 0, SEEK_SET) ;
-
-	/* Initialize the sample rate converter. */
-	if ((src_state = src_new (converter, channels, &error)) == NULL)
-	{	printf ("\n\nError : src_new() failed : %s.\n\n", src_strerror (error)) ;
-		exit (1) ;
-		} ;
-
-	src_data.end_of_input = 0 ; /* Set this later. */
-
-	/* Start with zero to force load in while loop. */
-	src_data.input_frames = 0 ;
-	src_data.data_in = input ;
-
-	if (warp [0].index > 0)
-		src_data.src_ratio = 1.0 ;
-	else
-	{	src_data.src_ratio = warp [0].ratio ;
-		warp_index ++ ;
-		} ;
-
-	src_data.data_out = output ;
-	src_data.output_frames = BUFFER_LEN /channels ;
-
-	while (1)
-	{
-		if (warp_index < ARRAY_LEN (warp) - 1 && input_count >= warp [warp_index].index)
-		{	src_data.src_ratio = warp [warp_index].ratio ;
-			warp_index ++ ;
-			} ;
-
-		/* If the input buffer is empty, refill it. */
-		if (src_data.input_frames == 0)
-		{	src_data.input_frames = (long) sf_readf_float (infile, input, INPUT_STEP_SIZE) ;
-			input_count += src_data.input_frames ;
-			src_data.data_in = input ;
-
-			/* The last read will not be a full buffer, so snd_of_input. */
-			if (src_data.input_frames < INPUT_STEP_SIZE)
-				src_data.end_of_input = SF_TRUE ;
-			} ;
-
-		/* Process current block. */
-		if ((error = src_process (src_state, &src_data)))
-		{	printf ("\nError : %s\n", src_strerror (error)) ;
-			exit (1) ;
-			} ;
-
-		/* Terminate if done. */
-		if (src_data.end_of_input && src_data.output_frames_gen == 0)
-			break ;
-
-		/* Write output. */
-		sf_writef_float (outfile, output, src_data.output_frames_gen) ;
-		output_count += src_data.output_frames_gen ;
-
-		src_data.data_in += src_data.input_frames_used * channels ;
-		src_data.input_frames -= src_data.input_frames_used ;
-		} ;
-
-	src_delete (src_state) ;
-
-	return output_count ;
-} /* timewarp_convert */
-
-/*------------------------------------------------------------------------------
-*/
-
-static void
-usage_exit (const char *progname)
-{	const char	*cptr ;
-
-	if ((cptr = strrchr (progname, '/')) != NULL)
-		progname = cptr + 1 ;
-
-	if ((cptr = strrchr (progname, '\\')) != NULL)
-		progname = cptr + 1 ;
-
-	printf ("\n"
-		"  A program demonstrating the time warping capabilities of libsamplerate."
-		"  It uses libsndfile for file I/O and Secret Rabbit Code (aka libsamplerate)"
-		"  for performing the warping.\n"
-		"  It works on any file format supported by libsndfile with any \n"
-		"  number of channels (limited only by host memory).\n"
-		"\n"
-		"  The warping is dependant on a table hard code into the source code.\n"
-		"\n"
-		"  libsamplerate version : %s\n"
-		"\n"
-		"  Usage : \n"
-		"       %s <input file> <output file>\n"
-		"\n", src_get_version (), progname) ;
-
-	puts ("") ;
-
-	exit (1) ;
-} /* usage_exit */
-
-/*==============================================================================
-*/
-
-#else /* (HAVE_SNFILE == 0) */
-
-/* Alternative main function when libsndfile is not available. */
-
-int
-main (void)
-{	puts (
-		"\n"
-		"****************************************************************\n"
-		"  This example program was compiled without libsndfile \n"
-		"  (https://github.com/libsndfile/libsndfile/).\n"
-		"  It is therefore completely broken and non-functional.\n"
-		"****************************************************************\n"
-		"\n"
-		) ;
-
-	return 0 ;
-} /* main */
-
-#endif
-