sndfilehandle.cc
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上传日期:2022-01-05
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- /*
- ** Copyright (C) 2007 Erik de Castro Lopo <erikd@mega-nerd.com>
- **
- ** This program is free software; you can redistribute it and/or modify
- ** it under the terms of the GNU General Public License as published by
- ** the Free Software Foundation; either version 2 of the License, or
- ** (at your option) any later version.
- **
- ** This program is distributed in the hope that it will be useful,
- ** but WITHOUT ANY WARRANTY; without even the implied warranty of
- ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ** GNU General Public License for more details.
- **
- ** You should have received a copy of the GNU General Public License
- ** along with this program; if not, write to the Free Software
- ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #include <cstdio>
- #include <cstring>
- #include <sndfile.hh>
- #define BUFFER_LEN 1024
- static void
- create_file (const char * fname, int format)
- { static short buffer [BUFFER_LEN] ;
- SndfileHandle file ;
- int channels = 2 ;
- int srate = 48000 ;
- printf ("Creating file named '%s'n", fname) ;
- file = SndfileHandle (fname, SFM_WRITE, format, channels, srate) ;
- memset (buffer, 0, sizeof (buffer)) ;
- file.write (buffer, BUFFER_LEN) ;
- puts ("") ;
- /*
- ** The SndfileHandle object will automatically close the file and
- ** release all allocated memory when the object goes out of scope.
- ** This is the Resource Acquisition Is Initailization idom.
- ** See : http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization
- */
- } /* create_file */
- static void
- read_file (const char * fname)
- { static short buffer [BUFFER_LEN] ;
- SndfileHandle file ;
- file = SndfileHandle (fname) ;
- printf ("Opened file '%s'n", fname) ;
- printf (" Sample rate : %dn", file.samplerate ()) ;
- printf (" Channels : %dn", file.channels ()) ;
- file.read (buffer, BUFFER_LEN) ;
- puts ("") ;
- /* RAII takes care of destroying SndfileHandle object. */
- } /* read_file */
- int
- main (void)
- { const char * fname = "test.wav" ;
- puts ("nSimple example showing usage of the C++ SndfileHandle object.n") ;
- create_file (fname, SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;
- read_file (fname) ;
- puts ("Done.n") ;
- return 0 ;
- } /* main */