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_INPUTS 16 cannam@85: cannam@85: cannam@85: typedef struct cannam@85: { SNDFILE * infile [MAX_INPUTS] ; cannam@85: SNDFILE * outfile ; cannam@85: cannam@85: union cannam@85: { double d [BUFFER_LEN] ; cannam@85: int i [BUFFER_LEN] ; cannam@85: } din ; cannam@85: cannam@85: union cannam@85: cannam@85: { double d [MAX_INPUTS * BUFFER_LEN] ; cannam@85: int i [MAX_INPUTS * BUFFER_LEN] ; cannam@85: } dout ; cannam@85: cannam@85: int channels ; cannam@85: } STATE ; cannam@85: cannam@85: cannam@85: static void usage_exit (void) ; cannam@85: static void interleave_int (STATE * state) ; cannam@85: static void interleave_double (STATE * state) ; cannam@85: cannam@85: cannam@85: int cannam@85: main (int argc, char **argv) cannam@85: { STATE state ; cannam@85: SF_INFO sfinfo ; cannam@85: int k, double_merge = 0 ; cannam@85: cannam@85: if (argc < 5) cannam@85: { if (argc > 1) cannam@85: puts ("\nError : need at least 2 input files.") ; cannam@85: usage_exit () ; cannam@85: } ; cannam@85: cannam@85: if (strcmp (argv [argc - 2], "-o") != 0) cannam@85: { puts ("\nError : second last command line parameter should be '-o'.\n") ; cannam@85: usage_exit () ; cannam@85: } ; cannam@85: cannam@85: if (argc - 3 > MAX_INPUTS) cannam@85: { printf ("\nError : Cannot handle more than %d input channels.\n\n", MAX_INPUTS) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: memset (&state, 0, sizeof (state)) ; cannam@85: memset (&sfinfo, 0, sizeof (sfinfo)) ; cannam@85: cannam@85: for (k = 1 ; k < argc - 2 ; k++) cannam@85: { cannam@85: if ((state.infile [k - 1] = sf_open (argv [k], SFM_READ, &sfinfo)) == NULL) cannam@85: { printf ("\nError : Not able to open input file '%s'\n%s\n", argv [k], sf_strerror (NULL)) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: if (sfinfo.channels != 1) cannam@85: { printf ("\bError : Input file '%s' should be mono (has %d channels).\n", argv [k], sfinfo.channels) ; cannam@85: exit (1) ; 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_merge = 1 ; cannam@85: break ; cannam@85: cannam@85: default : cannam@85: break ; cannam@85: } ; cannam@85: cannam@85: state.channels ++ ; cannam@85: } ; cannam@85: cannam@85: sfinfo.channels = state.channels ; cannam@85: sfinfo.format = sfe_file_type_of_ext (argv [argc - 1], sfinfo.format) ; cannam@85: cannam@85: if ((state.outfile = sf_open (argv [argc - 1], SFM_WRITE, &sfinfo)) == NULL) cannam@85: { printf ("Not able to open output file '%s'\n%s\n", argv [argc - 1], sf_strerror (NULL)) ; cannam@85: exit (1) ; cannam@85: } ; cannam@85: cannam@85: if (double_merge) cannam@85: interleave_double (&state) ; cannam@85: else cannam@85: interleave_int (&state) ; cannam@85: cannam@85: for (k = 0 ; k < MAX_INPUTS ; k++) cannam@85: if (state.infile [k] != NULL) cannam@85: sf_close (state.infile [k]) ; cannam@85: sf_close (state.outfile) ; cannam@85: cannam@85: return 0 ; cannam@85: } /* main */ cannam@85: cannam@85: /*------------------------------------------------------------------------------ cannam@85: */ cannam@85: cannam@85: cannam@85: static void cannam@85: usage_exit (void) cannam@85: { puts ("\nUsage : sndfile-interleave ... -o \n") ; cannam@85: puts ("Merge two or more mono files into a single multi-channel file.\n") ; cannam@85: printf ("Using %s.\n\n", sf_version_string ()) ; cannam@85: exit (0) ; cannam@85: } /* usage_exit */ cannam@85: cannam@85: cannam@85: static void cannam@85: interleave_int (STATE * state) cannam@85: { int max_read_len, read_len ; cannam@85: int ch, k ; cannam@85: cannam@85: do cannam@85: { max_read_len = 0 ; cannam@85: cannam@85: for (ch = 0 ; ch < state->channels ; ch ++) cannam@85: { read_len = sf_read_int (state->infile [ch], state->din.i, BUFFER_LEN) ; cannam@85: if (read_len < BUFFER_LEN) cannam@85: memset (state->din.i + read_len, 0, sizeof (state->din.i [0]) * (BUFFER_LEN - read_len)) ; cannam@85: cannam@85: for (k = 0 ; k < read_len ; k++) cannam@85: state->dout.i [k * state->channels + ch] = state->din.i [k] ; cannam@85: cannam@85: max_read_len = MAX (max_read_len, read_len) ; cannam@85: } ; cannam@85: cannam@85: sf_writef_int (state->outfile, state->dout.i, max_read_len) ; cannam@85: } cannam@85: while (max_read_len > 0) ; cannam@85: cannam@85: } /* interleave_int */ cannam@85: cannam@85: cannam@85: static void cannam@85: interleave_double (STATE * state) cannam@85: { int max_read_len, read_len ; cannam@85: int ch, k ; cannam@85: cannam@85: do cannam@85: { max_read_len = 0 ; cannam@85: cannam@85: for (ch = 0 ; ch < state->channels ; ch ++) cannam@85: { read_len = sf_read_double (state->infile [ch], state->din.d, BUFFER_LEN) ; cannam@85: if (read_len < BUFFER_LEN) cannam@85: memset (state->din.d + read_len, 0, sizeof (state->din.d [0]) * (BUFFER_LEN - read_len)) ; cannam@85: cannam@85: for (k = 0 ; k < read_len ; k++) cannam@85: state->dout.d [k * state->channels + ch] = state->din.d [k] ; cannam@85: cannam@85: max_read_len = MAX (max_read_len, read_len) ; cannam@85: } ; cannam@85: cannam@85: sf_writef_double (state->outfile, state->dout.d, max_read_len) ; cannam@85: } cannam@85: while (max_read_len > 0) ; cannam@85: cannam@85: } /* interleave_double */