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https://github.com/signalwire/freeswitch.git
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add libsndifle 1.0.17 to in tree libs
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3761 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris
354
libs/libsndfile/examples/sndfile-info.c
Normal file
354
libs/libsndfile/examples/sndfile-info.c
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@@ -0,0 +1,354 @@
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/*
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** Copyright (C) 1999-2006 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <math.h>
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#include <sndfile.h>
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#define BUFFER_LEN (1 << 16)
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#if (defined (WIN32) || defined (_WIN32))
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#define snprintf _snprintf
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#endif
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static void print_version (void) ;
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static void print_usage (const char *progname) ;
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static void info_dump (const char *filename) ;
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static void instrument_dump (const char *filename) ;
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static void broadcast_dump (const char *filename) ;
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int
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main (int argc, char *argv [])
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{ int k ;
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print_version () ;
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if (argc < 2 || strcmp (argv [1], "--help") == 0 || strcmp (argv [1], "-h") == 0)
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{ char *progname ;
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progname = strrchr (argv [0], '/') ;
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progname = progname ? progname + 1 : argv [0] ;
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print_usage (progname) ;
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return 1 ;
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} ;
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if (strcmp (argv [1], "-i") == 0)
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{ instrument_dump (argv [2]) ;
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return 0 ;
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} ;
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if (strcmp (argv [1], "-b") == 0)
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{ broadcast_dump (argv [2]) ;
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return 0 ;
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} ;
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for (k = 1 ; k < argc ; k++)
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info_dump (argv [k]) ;
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return 0 ;
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} /* main */
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/*==============================================================================
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** Print version and usage.
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*/
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static double data [BUFFER_LEN] ;
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static void
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print_version (void)
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{ char buffer [256] ;
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sf_command (NULL, SFC_GET_LIB_VERSION, buffer, sizeof (buffer)) ;
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printf ("\nVersion : %s\n\n", buffer) ;
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} /* print_version */
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static void
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print_usage (const char *progname)
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{ printf ("Usage :\n %s <file> ...\n", progname) ;
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printf (" Prints out information about one or more sound files.\n\n") ;
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printf (" %s -i <file>\n", progname) ;
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printf (" Prints out the instrument data for the given file.\n\n") ;
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printf (" %s -b <file>\n", progname) ;
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printf (" Prints out the broadcast WAV info for the given file.\n\n") ;
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#if (defined (_WIN32) || defined (WIN32))
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printf ("This is a Unix style command line application which\n"
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"should be run in a MSDOS box or Command Shell window.\n\n") ;
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printf ("Sleeping for 5 seconds before exiting.\n\n") ;
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fflush (stdout) ;
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/* This is the officially blessed by microsoft way but I can't get
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** it to link.
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** Sleep (15) ;
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** Instead, use this:
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*/
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_sleep (5 * 1000) ;
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#endif
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} /* print_usage */
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/*==============================================================================
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** Dumping of sndfile info.
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*/
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static double data [BUFFER_LEN] ;
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static double
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get_signal_max (SNDFILE *file)
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{ double max, temp ;
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int readcount, k, save_state ;
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save_state = sf_command (file, SFC_GET_NORM_DOUBLE, NULL, 0) ;
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sf_command (file, SFC_SET_NORM_DOUBLE, NULL, SF_FALSE) ;
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max = 0.0 ;
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while ((readcount = sf_read_double (file, data, BUFFER_LEN)))
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{ for (k = 0 ; k < readcount ; k++)
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{ temp = fabs (data [k]) ;
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if (temp > max)
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max = temp ;
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} ;
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} ;
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sf_command (file, SFC_SET_NORM_DOUBLE, NULL, save_state) ;
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return max ;
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} /* get_signal_max */
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static double
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calc_decibels (SF_INFO * sfinfo, double max)
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{ double decibels ;
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switch (sfinfo->format & SF_FORMAT_SUBMASK)
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{ case SF_FORMAT_PCM_U8 :
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case SF_FORMAT_PCM_S8 :
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decibels = max / 0x80 ;
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break ;
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case SF_FORMAT_PCM_16 :
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decibels = max / 0x8000 ;
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break ;
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case SF_FORMAT_PCM_24 :
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decibels = max / 0x800000 ;
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break ;
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case SF_FORMAT_PCM_32 :
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decibels = max / 0x80000000 ;
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break ;
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case SF_FORMAT_FLOAT :
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case SF_FORMAT_DOUBLE :
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decibels = max / 1.0 ;
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break ;
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default :
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decibels = max / 0x8000 ;
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break ;
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} ;
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return 20.0 * log10 (decibels) ;
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} /* calc_decibels */
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static const char *
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generate_duration_str (SF_INFO *sfinfo)
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{ static char str [128] ;
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int seconds ;
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memset (str, 0, sizeof (str)) ;
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if (sfinfo->samplerate < 1)
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return NULL ;
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if (sfinfo->frames / sfinfo->samplerate > 0x7FFFFFFF)
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return "unknown" ;
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seconds = sfinfo->frames / sfinfo->samplerate ;
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snprintf (str, sizeof (str) - 1, "%02d:", seconds / 60 / 60) ;
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seconds = seconds % (60 * 60) ;
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snprintf (str + strlen (str), sizeof (str) - strlen (str) - 1, "%02d:", seconds / 60) ;
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seconds = seconds % 60 ;
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snprintf (str + strlen (str), sizeof (str) - strlen (str) - 1, "%02d.", seconds) ;
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seconds = ((1000 * sfinfo->frames) / sfinfo->samplerate) % 1000 ;
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snprintf (str + strlen (str), sizeof (str) - strlen (str) - 1, "%03d", seconds) ;
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return str ;
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} /* generate_duration_str */
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static void
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info_dump (const char *filename)
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{ static char strbuffer [BUFFER_LEN] ;
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SNDFILE *file ;
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SF_INFO sfinfo ;
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double signal_max, decibels ;
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memset (&sfinfo, 0, sizeof (sfinfo)) ;
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if ((file = sf_open (filename, SFM_READ, &sfinfo)) == NULL)
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{ printf ("Error : Not able to open input file %s.\n", filename) ;
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fflush (stdout) ;
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memset (data, 0, sizeof (data)) ;
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sf_command (file, SFC_GET_LOG_INFO, strbuffer, BUFFER_LEN) ;
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puts (strbuffer) ;
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puts (sf_strerror (NULL)) ;
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return ;
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} ;
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printf ("========================================\n") ;
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sf_command (file, SFC_GET_LOG_INFO, strbuffer, BUFFER_LEN) ;
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puts (strbuffer) ;
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printf ("----------------------------------------\n") ;
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if (file == NULL)
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{ printf ("Error : Not able to open input file %s.\n", filename) ;
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fflush (stdout) ;
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memset (data, 0, sizeof (data)) ;
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puts (sf_strerror (NULL)) ;
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}
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else
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{ printf ("Sample Rate : %d\n", sfinfo.samplerate) ;
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if (sfinfo.frames > 0x7FFFFFFF)
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printf ("Frames : unknown\n") ;
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else
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printf ("Frames : %ld\n", (long) sfinfo.frames) ;
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printf ("Channels : %d\n", sfinfo.channels) ;
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printf ("Format : 0x%08X\n", sfinfo.format) ;
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printf ("Sections : %d\n", sfinfo.sections) ;
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printf ("Seekable : %s\n", (sfinfo.seekable ? "TRUE" : "FALSE")) ;
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printf ("Duration : %s\n", generate_duration_str (&sfinfo)) ;
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/* Do not use sf_signal_max because it doesn work for non-seekable files . */
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signal_max = get_signal_max (file) ;
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decibels = calc_decibels (&sfinfo, signal_max) ;
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printf ("Signal Max : %g (%4.2f dB)\n\n", signal_max, decibels) ;
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} ;
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sf_close (file) ;
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} /* info_dump */
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/*==============================================================================
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** Dumping of SF_INSTRUMENT data.
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*/
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static const char *
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str_of_type (int mode)
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{ switch (mode)
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{ case SF_LOOP_NONE : return "none" ;
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case SF_LOOP_FORWARD : return "fwd " ;
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case SF_LOOP_BACKWARD : return "back" ;
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case SF_LOOP_ALTERNATING : return "alt " ;
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default : break ;
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} ;
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return "????" ;
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} /* str_of_mode */
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static void
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instrument_dump (const char *filename)
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{ SNDFILE *file ;
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SF_INFO sfinfo ;
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SF_INSTRUMENT inst ;
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int got_inst, k ;
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memset (&sfinfo, 0, sizeof (sfinfo)) ;
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if ((file = sf_open (filename, SFM_READ, &sfinfo)) == NULL)
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{ printf ("Error : Not able to open input file %s.\n", filename) ;
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fflush (stdout) ;
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memset (data, 0, sizeof (data)) ;
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puts (sf_strerror (NULL)) ;
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return ;
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} ;
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got_inst = sf_command (file, SFC_GET_INSTRUMENT, &inst, sizeof (inst)) ;
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sf_close (file) ;
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if (got_inst == SF_FALSE)
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{ printf ("Error : File '%s' does not contain instrument data.\n\n", filename) ;
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return ;
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} ;
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printf ("Instrument : %s\n\n", filename) ;
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printf (" Gain : %d\n", inst.gain) ;
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printf (" Base note : %d\n", inst.basenote) ;
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printf (" Velocity : %d - %d\n", (int) inst.velocity_lo, (int) inst.velocity_hi) ;
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printf (" Key : %d - %d\n", (int) inst.key_lo, (int) inst.key_hi) ;
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printf (" Loop points : %d\n", inst.loop_count) ;
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for (k = 0 ; k < inst.loop_count ; k++)
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printf (" %-2d Mode : %s Start : %6d End : %6d Count : %6d\n", k, str_of_type (inst.loops [k].mode), inst.loops [k].start, inst.loops [k].end, inst.loops [k].count) ;
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putchar ('\n') ;
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} /* instrument_dump */
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static void
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broadcast_dump (const char *filename)
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{ SNDFILE *file ;
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SF_INFO sfinfo ;
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SF_BROADCAST_INFO bext ;
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int got_bext ;
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memset (&sfinfo, 0, sizeof (sfinfo)) ;
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if ((file = sf_open (filename, SFM_READ, &sfinfo)) == NULL)
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{ printf ("Error : Not able to open input file %s.\n", filename) ;
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fflush (stdout) ;
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memset (data, 0, sizeof (data)) ;
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puts (sf_strerror (NULL)) ;
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return ;
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} ;
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memset (&bext, 0, sizeof (SF_BROADCAST_INFO)) ;
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got_bext = sf_command (file, SFC_GET_BROADCAST_INFO, &bext, sizeof (bext)) ;
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sf_close (file) ;
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if (got_bext == SF_FALSE)
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{ printf ("Error : File '%s' does not contain broadcast information.\n\n", filename) ;
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return ;
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} ;
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printf ("Description : %.*s\n", (int) sizeof (bext.description), bext.description) ;
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printf ("Originator : %.*s\n", (int) sizeof (bext.originator), bext.originator) ;
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printf ("Origination ref : %.*s\n", (int) sizeof (bext.originator_reference), bext.originator_reference) ;
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printf ("Origination date : %.*s\n", (int) sizeof (bext.origination_date), bext.origination_date) ;
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printf ("Origination time : %.*s\n", (int) sizeof (bext.origination_time), bext.origination_time) ;
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printf ("BWF version : %d\n", bext.version) ;
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printf ("UMID : %.*s\n", (int) sizeof (bext.umid), bext.umid) ;
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printf ("Coding history : %.*s\n", bext.coding_history_size, bext.coding_history) ;
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} /* broadcast_dump */
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/*
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** Do not edit or modify anything in this comment block.
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** The arch-tag line is a file identity tag for the GNU Arch
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** revision control system.
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**
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** arch-tag: f59a05db-a182-41de-aedd-d717ce2bb099
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*/
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