| /* |
| ** Copyright (C) 2001-2011 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 Lesser General Public License as published by |
| ** the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU Lesser 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 "sfconfig.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <math.h> |
| |
| #include "sndfile.h" |
| #include "common.h" |
| |
| static SF_FORMAT_INFO const simple_formats [] = |
| { |
| { SF_FORMAT_AIFF | SF_FORMAT_PCM_16, |
| "AIFF (Apple/SGI 16 bit PCM)", "aiff" |
| }, |
| |
| { SF_FORMAT_AIFF | SF_FORMAT_FLOAT, |
| "AIFF (Apple/SGI 32 bit float)", "aifc" |
| }, |
| |
| { SF_FORMAT_AIFF | SF_FORMAT_PCM_S8, |
| "AIFF (Apple/SGI 8 bit PCM)", "aiff" |
| }, |
| |
| { SF_FORMAT_AU | SF_FORMAT_PCM_16, |
| "AU (Sun/Next 16 bit PCM)", "au" |
| }, |
| |
| { SF_FORMAT_AU | SF_FORMAT_ULAW, |
| "AU (Sun/Next 8-bit u-law)", "au" |
| }, |
| |
| { SF_FORMAT_CAF | SF_FORMAT_PCM_16, |
| "CAF (Apple 16 bit PCM)", "caf" |
| }, |
| |
| #if HAVE_EXTERNAL_LIBS |
| { SF_FORMAT_FLAC | SF_FORMAT_PCM_16, |
| "FLAC 16 bit", "flac" |
| }, |
| #endif |
| |
| { SF_FORMAT_RAW | SF_FORMAT_VOX_ADPCM, |
| "OKI Dialogic VOX ADPCM", "vox" |
| }, |
| |
| #if HAVE_EXTERNAL_LIBS |
| { SF_FORMAT_OGG | SF_FORMAT_VORBIS, |
| "Ogg Vorbis (Xiph Foundation)", "oga" |
| }, |
| #endif |
| |
| { SF_FORMAT_WAV | SF_FORMAT_PCM_16, |
| "WAV (Microsoft 16 bit PCM)", "wav" |
| }, |
| |
| { SF_FORMAT_WAV | SF_FORMAT_FLOAT, |
| "WAV (Microsoft 32 bit float)", "wav" |
| }, |
| |
| { SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM, |
| "WAV (Microsoft 4 bit IMA ADPCM)", "wav" |
| }, |
| |
| { SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM, |
| "WAV (Microsoft 4 bit MS ADPCM)", "wav" |
| }, |
| |
| { SF_FORMAT_WAV | SF_FORMAT_PCM_U8, |
| "WAV (Microsoft 8 bit PCM)", "wav" |
| }, |
| |
| } ; /* simple_formats */ |
| |
| int |
| psf_get_format_simple_count (void) |
| { return (sizeof (simple_formats) / sizeof (SF_FORMAT_INFO)) ; |
| } /* psf_get_format_simple_count */ |
| |
| int |
| psf_get_format_simple (SF_FORMAT_INFO *data) |
| { int indx ; |
| |
| if (data->format < 0 || data->format >= (SIGNED_SIZEOF (simple_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) |
| return SFE_BAD_COMMAND_PARAM ; |
| |
| indx = data->format ; |
| memcpy (data, &(simple_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ; |
| |
| return 0 ; |
| } /* psf_get_format_simple */ |
| |
| /*============================================================================ |
| ** Major format info. |
| */ |
| |
| static SF_FORMAT_INFO const major_formats [] = |
| { |
| { SF_FORMAT_AIFF, "AIFF (Apple/SGI)", "aiff" }, |
| { SF_FORMAT_AU, "AU (Sun/NeXT)", "au" }, |
| { SF_FORMAT_AVR, "AVR (Audio Visual Research)", "avr" }, |
| { SF_FORMAT_CAF, "CAF (Apple Core Audio File)", "caf" }, |
| #if HAVE_EXTERNAL_LIBS |
| { SF_FORMAT_FLAC, "FLAC (FLAC Lossless Audio Codec)", "flac" }, |
| #endif |
| { SF_FORMAT_HTK, "HTK (HMM Tool Kit)", "htk" }, |
| { SF_FORMAT_SVX, "IFF (Amiga IFF/SVX8/SV16)", "iff" }, |
| { SF_FORMAT_MAT4, "MAT4 (GNU Octave 2.0 / Matlab 4.2)", "mat" }, |
| { SF_FORMAT_MAT5, "MAT5 (GNU Octave 2.1 / Matlab 5.0)", "mat" }, |
| { SF_FORMAT_MPC2K, "MPC (Akai MPC 2k)", "mpc" }, |
| #if HAVE_EXTERNAL_LIBS |
| { SF_FORMAT_OGG, "OGG (OGG Container format)", "oga" }, |
| #endif |
| { SF_FORMAT_PAF, "PAF (Ensoniq PARIS)", "paf" }, |
| { SF_FORMAT_PVF, "PVF (Portable Voice Format)", "pvf" }, |
| { SF_FORMAT_RAW, "RAW (header-less)", "raw" }, |
| { SF_FORMAT_RF64, "RF64 (RIFF 64)", "rf64" }, |
| { SF_FORMAT_SD2, "SD2 (Sound Designer II)", "sd2" }, |
| { SF_FORMAT_SDS, "SDS (Midi Sample Dump Standard)", "sds" }, |
| { SF_FORMAT_IRCAM, "SF (Berkeley/IRCAM/CARL)", "sf" }, |
| { SF_FORMAT_VOC, "VOC (Creative Labs)", "voc" }, |
| { SF_FORMAT_W64, "W64 (SoundFoundry WAVE 64)", "w64" }, |
| { SF_FORMAT_WAV, "WAV (Microsoft)", "wav" }, |
| { SF_FORMAT_NIST, "WAV (NIST Sphere)", "wav" }, |
| { SF_FORMAT_WAVEX, "WAVEX (Microsoft)", "wav" }, |
| { SF_FORMAT_WVE, "WVE (Psion Series 3)", "wve" }, |
| { SF_FORMAT_XI, "XI (FastTracker 2)", "xi" }, |
| |
| } ; /* major_formats */ |
| |
| int |
| psf_get_format_major_count (void) |
| { return (sizeof (major_formats) / sizeof (SF_FORMAT_INFO)) ; |
| } /* psf_get_format_major_count */ |
| |
| int |
| psf_get_format_major (SF_FORMAT_INFO *data) |
| { int indx ; |
| |
| if (data->format < 0 || data->format >= (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) |
| return SFE_BAD_COMMAND_PARAM ; |
| |
| indx = data->format ; |
| memcpy (data, &(major_formats [indx]), SIGNED_SIZEOF (SF_FORMAT_INFO)) ; |
| |
| return 0 ; |
| } /* psf_get_format_major */ |
| |
| /*============================================================================ |
| ** Subtype format info. |
| */ |
| |
| static SF_FORMAT_INFO subtype_formats [] = |
| { |
| { SF_FORMAT_PCM_S8, "Signed 8 bit PCM", NULL }, |
| { SF_FORMAT_PCM_16, "Signed 16 bit PCM", NULL }, |
| { SF_FORMAT_PCM_24, "Signed 24 bit PCM", NULL }, |
| { SF_FORMAT_PCM_32, "Signed 32 bit PCM", NULL }, |
| |
| { SF_FORMAT_PCM_U8, "Unsigned 8 bit PCM", NULL }, |
| |
| { SF_FORMAT_FLOAT, "32 bit float", NULL }, |
| { SF_FORMAT_DOUBLE, "64 bit float", NULL }, |
| |
| { SF_FORMAT_ULAW, "U-Law", NULL }, |
| { SF_FORMAT_ALAW, "A-Law", NULL }, |
| { SF_FORMAT_IMA_ADPCM, "IMA ADPCM", NULL }, |
| { SF_FORMAT_MS_ADPCM, "Microsoft ADPCM", NULL }, |
| |
| { SF_FORMAT_GSM610, "GSM 6.10", NULL }, |
| |
| { SF_FORMAT_G721_32, "32kbs G721 ADPCM", NULL }, |
| { SF_FORMAT_G723_24, "24kbs G723 ADPCM", NULL }, |
| |
| { SF_FORMAT_DWVW_12, "12 bit DWVW", NULL }, |
| { SF_FORMAT_DWVW_16, "16 bit DWVW", NULL }, |
| { SF_FORMAT_DWVW_24, "24 bit DWVW", NULL }, |
| { SF_FORMAT_VOX_ADPCM, "VOX ADPCM", "vox" }, |
| |
| { SF_FORMAT_DPCM_16, "16 bit DPCM", NULL }, |
| { SF_FORMAT_DPCM_8, "8 bit DPCM", NULL }, |
| |
| #if HAVE_EXTERNAL_LIBS |
| { SF_FORMAT_VORBIS, "Vorbis", NULL }, |
| #endif |
| } ; /* subtype_formats */ |
| |
| int |
| psf_get_format_subtype_count (void) |
| { return (sizeof (subtype_formats) / sizeof (SF_FORMAT_INFO)) ; |
| } /* psf_get_format_subtype_count */ |
| |
| int |
| psf_get_format_subtype (SF_FORMAT_INFO *data) |
| { int indx ; |
| |
| if (data->format < 0 || data->format >= (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO))) |
| return SFE_BAD_COMMAND_PARAM ; |
| |
| indx = data->format ; |
| memcpy (data, &(subtype_formats [indx]), sizeof (SF_FORMAT_INFO)) ; |
| |
| return 0 ; |
| } /* psf_get_format_subtype */ |
| |
| /*============================================================================== |
| */ |
| |
| int |
| psf_get_format_info (SF_FORMAT_INFO *data) |
| { int k, format ; |
| |
| if (SF_CONTAINER (data->format)) |
| { format = SF_CONTAINER (data->format) ; |
| |
| for (k = 0 ; k < (SIGNED_SIZEOF (major_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++) |
| { if (format == major_formats [k].format) |
| { memcpy (data, &(major_formats [k]), sizeof (SF_FORMAT_INFO)) ; |
| return 0 ; |
| } ; |
| } ; |
| } |
| else if (SF_CODEC (data->format)) |
| { format = SF_CODEC (data->format) ; |
| |
| for (k = 0 ; k < (SIGNED_SIZEOF (subtype_formats) / SIGNED_SIZEOF (SF_FORMAT_INFO)) ; k++) |
| { if (format == subtype_formats [k].format) |
| { memcpy (data, &(subtype_formats [k]), sizeof (SF_FORMAT_INFO)) ; |
| return 0 ; |
| } ; |
| } ; |
| } ; |
| |
| memset (data, 0, sizeof (SF_FORMAT_INFO)) ; |
| |
| return SFE_BAD_COMMAND_PARAM ; |
| } /* psf_get_format_info */ |
| |
| /*============================================================================== |
| */ |
| |
| double |
| psf_calc_signal_max (SF_PRIVATE *psf, int normalize) |
| { sf_count_t position ; |
| double max_val, temp, *data ; |
| int k, len, readcount, save_state ; |
| |
| /* If the file is not seekable, there is nothing we can do. */ |
| if (! psf->sf.seekable) |
| { psf->error = SFE_NOT_SEEKABLE ; |
| return 0.0 ; |
| } ; |
| |
| if (! psf->read_double) |
| { psf->error = SFE_UNIMPLEMENTED ; |
| return 0.0 ; |
| } ; |
| |
| save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ; |
| sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ; |
| |
| /* Brute force. Read the whole file and find the biggest sample. */ |
| /* Get current position in file */ |
| position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ; |
| /* Go to start of file. */ |
| sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ; |
| |
| data = psf->u.dbuf ; |
| len = ARRAY_LEN (psf->u.dbuf) ; |
| |
| for (readcount = 1, max_val = 0.0 ; readcount > 0 ; /* nothing */) |
| { readcount = sf_read_double ((SNDFILE*) psf, data, len) ; |
| for (k = 0 ; k < readcount ; k++) |
| { temp = fabs (data [k]) ; |
| max_val = temp > max_val ? temp : max_val ; |
| } ; |
| } ; |
| |
| /* Return to SNDFILE to original state. */ |
| sf_seek ((SNDFILE*) psf, position, SEEK_SET) ; |
| sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ; |
| |
| return max_val ; |
| } /* psf_calc_signal_max */ |
| |
| int |
| psf_calc_max_all_channels (SF_PRIVATE *psf, double *peaks, int normalize) |
| { sf_count_t position ; |
| double temp, *data ; |
| int k, len, readcount, save_state ; |
| int chan ; |
| |
| /* If the file is not seekable, there is nothing we can do. */ |
| if (! psf->sf.seekable) |
| return (psf->error = SFE_NOT_SEEKABLE) ; |
| |
| if (! psf->read_double) |
| return (psf->error = SFE_UNIMPLEMENTED) ; |
| |
| save_state = sf_command ((SNDFILE*) psf, SFC_GET_NORM_DOUBLE, NULL, 0) ; |
| sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, normalize) ; |
| |
| memset (peaks, 0, sizeof (double) * psf->sf.channels) ; |
| |
| /* Brute force. Read the whole file and find the biggest sample for each channel. */ |
| position = sf_seek ((SNDFILE*) psf, 0, SEEK_CUR) ; /* Get current position in file */ |
| sf_seek ((SNDFILE*) psf, 0, SEEK_SET) ; /* Go to start of file. */ |
| |
| len = ARRAY_LEN (psf->u.dbuf) ; |
| |
| data = psf->u.dbuf ; |
| |
| chan = 0 ; |
| readcount = len ; |
| while (readcount > 0) |
| { readcount = sf_read_double ((SNDFILE*) psf, data, len) ; |
| for (k = 0 ; k < readcount ; k++) |
| { temp = fabs (data [k]) ; |
| peaks [chan] = temp > peaks [chan] ? temp : peaks [chan] ; |
| chan = (chan + 1) % psf->sf.channels ; |
| } ; |
| } ; |
| |
| sf_seek ((SNDFILE*) psf, position, SEEK_SET) ; /* Return to original position. */ |
| |
| sf_command ((SNDFILE*) psf, SFC_SET_NORM_DOUBLE, NULL, save_state) ; |
| |
| return 0 ; |
| } /* psf_calc_max_all_channels */ |
| |
| int |
| psf_get_signal_max (SF_PRIVATE *psf, double *peak) |
| { int k ; |
| |
| if (psf->peak_info == NULL) |
| return SF_FALSE ; |
| |
| peak [0] = psf->peak_info->peaks [0].value ; |
| |
| for (k = 1 ; k < psf->sf.channels ; k++) |
| peak [0] = SF_MAX (peak [0], psf->peak_info->peaks [k].value) ; |
| |
| return SF_TRUE ; |
| } /* psf_get_signal_max */ |
| |
| int |
| psf_get_max_all_channels (SF_PRIVATE *psf, double *peaks) |
| { int k ; |
| |
| if (psf->peak_info == NULL) |
| return SF_FALSE ; |
| |
| for (k = 0 ; k < psf->sf.channels ; k++) |
| peaks [k] = psf->peak_info->peaks [k].value ; |
| |
| return SF_TRUE ; |
| } /* psf_get_max_all_channels */ |
| |
| |