Chris@40: /* Chris@40: ** Copyright (C) 2008-2016 Erik de Castro Lopo Chris@40: ** Copyright (C) 2008 Conrad Parker Chris@40: ** Chris@40: ** All rights reserved. Chris@40: ** Chris@40: ** Redistribution and use in source and binary forms, with or without Chris@40: ** modification, are permitted provided that the following conditions are Chris@40: ** met: Chris@40: ** Chris@40: ** * Redistributions of source code must retain the above copyright Chris@40: ** notice, this list of conditions and the following disclaimer. Chris@40: ** * Redistributions in binary form must reproduce the above copyright Chris@40: ** notice, this list of conditions and the following disclaimer in Chris@40: ** the documentation and/or other materials provided with the Chris@40: ** distribution. Chris@40: ** * Neither the author nor the names of any contributors may be used Chris@40: ** to endorse or promote products derived from this software without Chris@40: ** specific prior written permission. Chris@40: ** Chris@40: ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS Chris@40: ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED Chris@40: ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR Chris@40: ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR Chris@40: ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, Chris@40: ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, Chris@40: ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; Chris@40: ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, Chris@40: ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR Chris@40: ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF Chris@40: ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Chris@40: */ Chris@40: Chris@40: #include "sfconfig.h" Chris@40: Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: #include Chris@40: Chris@40: #include Chris@40: Chris@40: #include "common.h" Chris@40: Chris@40: /* Length of comparison data buffers in units of items */ Chris@40: #define BUFLEN 65536 Chris@40: Chris@40: static const char * progname = NULL ; Chris@40: static char * filename1 = NULL, * filename2 = NULL ; Chris@40: Chris@40: static int Chris@40: comparison_error (const char * what, sf_count_t frame_offset) Chris@40: { char buffer [128] ; Chris@40: Chris@40: if (frame_offset >= 0) Chris@40: snprintf (buffer, sizeof (buffer), " (at frame offset %" PRId64 ")", frame_offset) ; Chris@40: else Chris@40: buffer [0] = 0 ; Chris@40: Chris@40: printf ("%s: %s of files %s and %s differ%s.\n", progname, what, filename1, filename2, buffer) ; Chris@40: return 1 ; Chris@40: } /* comparison_error */ Chris@40: Chris@40: static int Chris@40: compare (void) Chris@40: { Chris@40: double buf1 [BUFLEN], buf2 [BUFLEN] ; Chris@40: SF_INFO sfinfo1, sfinfo2 ; Chris@40: SNDFILE * sf1 = NULL, * sf2 = NULL ; Chris@40: sf_count_t items, i, nread1, nread2, offset = 0 ; Chris@40: int retval = 0 ; Chris@40: Chris@40: memset (&sfinfo1, 0, sizeof (SF_INFO)) ; Chris@40: sf1 = sf_open (filename1, SFM_READ, &sfinfo1) ; Chris@40: if (sf1 == NULL) Chris@40: { printf ("Error opening %s.\n", filename1) ; Chris@40: retval = 1 ; Chris@40: goto out ; Chris@40: } ; Chris@40: Chris@40: memset (&sfinfo2, 0, sizeof (SF_INFO)) ; Chris@40: sf2 = sf_open (filename2, SFM_READ, &sfinfo2) ; Chris@40: if (sf2 == NULL) Chris@40: { printf ("Error opening %s.\n", filename2) ; Chris@40: retval = 1 ; Chris@40: goto out ; Chris@40: } ; Chris@40: Chris@40: if (sfinfo1.samplerate != sfinfo2.samplerate) Chris@40: { retval = comparison_error ("Samplerates", -1) ; Chris@40: goto out ; Chris@40: } ; Chris@40: Chris@40: if (sfinfo1.channels != sfinfo2.channels) Chris@40: { retval = comparison_error ("Number of channels", -1) ; Chris@40: goto out ; Chris@40: } ; Chris@40: Chris@40: /* Calculate the framecount that will fit in our data buffers */ Chris@40: items = BUFLEN / sfinfo1.channels ; Chris@40: Chris@40: while ((nread1 = sf_readf_double (sf1, buf1, items)) > 0) Chris@40: { nread2 = sf_readf_double (sf2, buf2, nread1) ; Chris@40: if (nread2 != nread1) Chris@40: { retval = comparison_error ("PCM data lengths", -1) ; Chris@40: goto out ; Chris@40: } ; Chris@40: for (i = 0 ; i < nread1 * sfinfo1.channels ; i++) Chris@40: { if (buf1 [i] != buf2 [i]) Chris@40: { retval = comparison_error ("PCM data", offset + i / sfinfo1.channels) ; Chris@40: goto out ; Chris@40: } ; Chris@40: } ; Chris@40: offset += nread1 ; Chris@40: } ; Chris@40: Chris@40: if ((nread2 = sf_readf_double (sf2, buf2, items)) != 0) Chris@40: { retval = comparison_error ("PCM data lengths", -1) ; Chris@40: goto out ; Chris@40: } ; Chris@40: Chris@40: out : Chris@40: sf_close (sf1) ; Chris@40: sf_close (sf2) ; Chris@40: Chris@40: return retval ; Chris@40: } /* compare */ Chris@40: Chris@40: static void Chris@40: usage_exit (void) Chris@40: { Chris@40: printf ("Usage : %s \n", progname) ; Chris@40: printf (" Compare the PCM data of two sound files.\n\n") ; Chris@40: printf ("Using %s.\n\n", sf_version_string ()) ; Chris@40: exit (1) ; Chris@40: } /* usage_exit */ Chris@40: Chris@40: int Chris@40: main (int argc, char *argv []) Chris@40: { Chris@40: progname = program_name (argv [0]) ; Chris@40: Chris@40: if (argc != 3) Chris@40: usage_exit () ; Chris@40: Chris@40: filename1 = argv [argc - 2] ; Chris@40: filename2 = argv [argc - 1] ; Chris@40: Chris@40: if (strcmp (filename1, filename2) == 0) Chris@40: { printf ("Error : Input filenames are the same.\n\n") ; Chris@40: usage_exit () ; Chris@40: } ; Chris@40: Chris@40: return compare () ; Chris@40: } /* main */