cannam@85: /* cannam@85: ** Copyright (C) 2009-2011 Erik de Castro Lopo cannam@85: ** cannam@85: ** All rights reserved. cannam@85: ** cannam@85: ** Redistribution and use in source and binary forms, with or without cannam@85: ** modification, are permitted provided that the following conditions are cannam@85: ** met: cannam@85: ** cannam@85: ** * Redistributions of source code must retain the above copyright cannam@85: ** notice, this list of conditions and the following disclaimer. cannam@85: ** * Redistributions in binary form must reproduce the above copyright cannam@85: ** notice, this list of conditions and the following disclaimer in cannam@85: ** the documentation and/or other materials provided with the cannam@85: ** distribution. cannam@85: ** * Neither the author nor the names of any contributors may be used cannam@85: ** to endorse or promote products derived from this software without cannam@85: ** specific prior written permission. cannam@85: ** cannam@85: ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS cannam@85: ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED cannam@85: ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR cannam@85: ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR cannam@85: ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, cannam@85: ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, cannam@85: ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; cannam@85: ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, cannam@85: ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR cannam@85: ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF cannam@85: ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. cannam@85: */ cannam@85: cannam@85: #include cannam@85: #include cannam@85: #include cannam@85: #include cannam@85: cannam@85: #include "common.h" cannam@85: cannam@85: #define BUFFER_LEN 4096 cannam@85: #define MAX_CHANNELS 16 cannam@85: cannam@85: cannam@85: typedef struct cannam@85: { SNDFILE * infile ; cannam@85: SNDFILE * outfile [MAX_CHANNELS] ; cannam@85: cannam@85: union cannam@85: { double d [MAX_CHANNELS * BUFFER_LEN] ; cannam@85: int i [MAX_CHANNELS * BUFFER_LEN] ; cannam@85: } din ; cannam@85: cannam@85: union cannam@85: { double d [BUFFER_LEN] ; cannam@85: int i [BUFFER_LEN] ; cannam@85: } dout ; cannam@85: cannam@85: int channels ; cannam@85: } STATE ; cannam@85: cannam@85: static void usage_exit (void) ; cannam@85: cannam@85: static void deinterleave_int (STATE * state) ; cannam@85: static void deinterleave_double (STATE * state) ; cannam@85: cannam@85: int cannam@85: main (int argc, char **argv) cannam@85: { STATE state ; cannam@85: SF_INFO sfinfo ; cannam@85: char pathname [512], ext [32], *cptr ; cannam@85: int ch, double_split ; cannam@85: cannam@85: if (argc != 2) cannam@85: { if (argc != 1) cannam@85: puts ("\nError : need a single input file.\n") ; cannam@85: usage_exit () ; cannam@85: } ; cannam@85: cannam@85: memset (&state, 0, sizeof (state)) ; cannam@85: memset (&sfinfo, 0, sizeof (sfinfo)) ; cannam@85: cannam@85: if ((state.infile = sf_open (argv [1], SFM_READ, &sfinfo)) == NULL) cannam@85: { printf ("\nError : Not able to open input file '%s'\n%s\n", argv [1], sf_strerror (NULL)) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: if (sfinfo.channels < 2) cannam@85: { printf ("\nError : Input file '%s' only has one channel.\n", argv [1]) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: state.channels = sfinfo.channels ; cannam@85: sfinfo.channels = 1 ; cannam@85: cannam@85: snprintf (pathname, sizeof (pathname), "%s", argv [1]) ; cannam@85: if ((cptr = strrchr (pathname, '.')) == NULL) cannam@85: ext [0] = 0 ; cannam@85: else cannam@85: { snprintf (ext, sizeof (ext), "%s", cptr) ; cannam@85: cptr [0] = 0 ; cannam@85: } ; cannam@85: cannam@85: printf ("Input file : %s\n", pathname) ; cannam@85: puts ("Output files :") ; cannam@85: cannam@85: for (ch = 0 ; ch < state.channels ; ch++) cannam@85: { char filename [520] ; cannam@85: cannam@85: snprintf (filename, sizeof (filename), "%s_%02d%s", pathname, ch, ext) ; cannam@85: cannam@85: if ((state.outfile [ch] = sf_open (filename, SFM_WRITE, &sfinfo)) == NULL) cannam@85: { printf ("Not able to open output file '%s'\n%s\n", filename, sf_strerror (NULL)) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: printf (" %s\n", filename) ; cannam@85: } ; cannam@85: cannam@85: switch (sfinfo.format & SF_FORMAT_SUBMASK) cannam@85: { case SF_FORMAT_FLOAT : cannam@85: case SF_FORMAT_DOUBLE : cannam@85: case SF_FORMAT_VORBIS : cannam@85: double_split = 1 ; cannam@85: break ; cannam@85: cannam@85: default : cannam@85: double_split = 0 ; cannam@85: break ; cannam@85: } ; cannam@85: cannam@85: if (double_split) cannam@85: deinterleave_double (&state) ; cannam@85: else cannam@85: deinterleave_int (&state) ; cannam@85: cannam@85: sf_close (state.infile) ; cannam@85: for (ch = 0 ; ch < MAX_CHANNELS ; ch++) cannam@85: if (state.outfile [ch] != NULL) cannam@85: sf_close (state.outfile [ch]) ; cannam@85: cannam@85: return 0 ; cannam@85: } /* main */ cannam@85: cannam@85: /*------------------------------------------------------------------------------ cannam@85: */ cannam@85: cannam@85: static void cannam@85: usage_exit (void) cannam@85: { puts ("\nUsage : sndfile-deinterleave \n") ; cannam@85: puts ( cannam@85: "Split a mutli-channel file into a set of mono files.\n" cannam@85: "\n" cannam@85: "If the input file is named 'a.wav', the output files will be named\n" cannam@85: "a_00.wav, a_01.wav and so on.\n" cannam@85: ) ; cannam@85: printf ("Using %s.\n\n", sf_version_string ()) ; cannam@85: exit (0) ; cannam@85: } /* usage_exit */ cannam@85: cannam@85: static void cannam@85: deinterleave_int (STATE * state) cannam@85: { int read_len ; cannam@85: int ch, k ; cannam@85: cannam@85: do cannam@85: { read_len = sf_readf_int (state->infile, state->din.i, BUFFER_LEN) ; cannam@85: cannam@85: for (ch = 0 ; ch < state->channels ; ch ++) cannam@85: { for (k = 0 ; k < read_len ; k++) cannam@85: state->dout.i [k] = state->din.i [k * state->channels + ch] ; cannam@85: sf_write_int (state->outfile [ch], state->dout.i, read_len) ; cannam@85: } ; cannam@85: } cannam@85: while (read_len > 0) ; cannam@85: cannam@85: } /* deinterleave_int */ cannam@85: cannam@85: static void cannam@85: deinterleave_double (STATE * state) cannam@85: { int read_len ; cannam@85: int ch, k ; cannam@85: cannam@85: do cannam@85: { read_len = sf_readf_double (state->infile, state->din.d, BUFFER_LEN) ; cannam@85: cannam@85: for (ch = 0 ; ch < state->channels ; ch ++) cannam@85: { for (k = 0 ; k < read_len ; k++) cannam@85: state->dout.d [k] = state->din.d [k * state->channels + ch] ; cannam@85: sf_write_double (state->outfile [ch], state->dout.d, read_len) ; cannam@85: } ; cannam@85: } cannam@85: while (read_len > 0) ; cannam@85: cannam@85: } /* deinterleave_double */