X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/1059e1cc0c2ecfa237406949aa26155b6a5b9154..66f23d4fabf89ad09adbd4dfc15ac6b5b2b7da83:/interpretor/lib/src/libsndfile-1.0.25/src/htk.c diff --git a/interpretor/lib/src/libsndfile-1.0.25/src/htk.c b/interpretor/lib/src/libsndfile-1.0.25/src/htk.c deleted file mode 100644 index 25390f1..0000000 --- a/interpretor/lib/src/libsndfile-1.0.25/src/htk.c +++ /dev/null @@ -1,226 +0,0 @@ -/* -** Copyright (C) 2002-2011 Erik de Castro Lopo -** -** 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 -#include -#include -#include - -#include "sndfile.h" -#include "sfendian.h" -#include "common.h" - -/*------------------------------------------------------------------------------ -** Macros to handle big/little endian issues. -*/ - -#define SFE_HTK_BAD_FILE_LEN 1666 -#define SFE_HTK_NOT_WAVEFORM 1667 - -/*------------------------------------------------------------------------------ -** Private static functions. -*/ - -static int htk_close (SF_PRIVATE *psf) ; - -static int htk_write_header (SF_PRIVATE *psf, int calc_length) ; -static int htk_read_header (SF_PRIVATE *psf) ; - -/*------------------------------------------------------------------------------ -** Public function. -*/ - -int -htk_open (SF_PRIVATE *psf) -{ int subformat ; - int error = 0 ; - - if (psf->is_pipe) - return SFE_HTK_NO_PIPE ; - - if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0)) - { if ((error = htk_read_header (psf))) - return error ; - } ; - - subformat = SF_CODEC (psf->sf.format) ; - - if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) - { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_HTK) - return SFE_BAD_OPEN_FORMAT ; - - psf->endian = SF_ENDIAN_BIG ; - - if (htk_write_header (psf, SF_FALSE)) - return psf->error ; - - psf->write_header = htk_write_header ; - } ; - - psf->container_close = htk_close ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - - switch (subformat) - { case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */ - error = pcm_init (psf) ; - break ; - - default : break ; - } ; - - return error ; -} /* htk_open */ - -/*------------------------------------------------------------------------------ -*/ - -static int -htk_close (SF_PRIVATE *psf) -{ - if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) - htk_write_header (psf, SF_TRUE) ; - - return 0 ; -} /* htk_close */ - -static int -htk_write_header (SF_PRIVATE *psf, int calc_length) -{ sf_count_t current ; - int sample_count, sample_period ; - - current = psf_ftell (psf) ; - - if (calc_length) - psf->filelength = psf_get_filelen (psf) ; - - /* Reset the current header length to zero. */ - psf->header [0] = 0 ; - psf->headindex = 0 ; - psf_fseek (psf, 0, SEEK_SET) ; - - if (psf->filelength > 12) - sample_count = (psf->filelength - 12) / 2 ; - else - sample_count = 0 ; - - sample_period = 10000000 / psf->sf.samplerate ; - - psf_binheader_writef (psf, "E444", sample_count, sample_period, 0x20000) ; - - /* Header construction complete so write it out. */ - psf_fwrite (psf->header, psf->headindex, 1, psf) ; - - if (psf->error) - return psf->error ; - - psf->dataoffset = psf->headindex ; - - if (current > 0) - psf_fseek (psf, current, SEEK_SET) ; - - return psf->error ; -} /* htk_write_header */ - -/* -** Found the following info in a comment block within Bill Schottstaedt's -** sndlib library. -** -** HTK format files consist of a contiguous sequence of samples preceded by a -** header. Each sample is a vector of either 2-byte integers or 4-byte floats. -** 2-byte integers are used for compressed forms as described below and for -** vector quantised data as described later in section 5.11. HTK format data -** files can also be used to store speech waveforms as described in section 5.8. -** -** The HTK file format header is 12 bytes long and contains the following data -** nSamples -- number of samples in file (4-byte integer) -** sampPeriod -- sample period in 100ns units (4-byte integer) -** sampSize -- number of bytes per sample (2-byte integer) -** parmKind -- a code indicating the sample kind (2-byte integer) -** -** The parameter kind consists of a 6 bit code representing the basic -** parameter kind plus additional bits for each of the possible qualifiers. -** The basic parameter kind codes are -** -** 0 WAVEFORM sampled waveform -** 1 LPC linear prediction filter coefficients -** 2 LPREFC linear prediction reflection coefficients -** 3 LPCEPSTRA LPC cepstral coefficients -** 4 LPDELCEP LPC cepstra plus delta coefficients -** 5 IREFC LPC reflection coef in 16 bit integer format -** 6 MFCC mel-frequency cepstral coefficients -** 7 FBANK log mel-filter bank channel outputs -** 8 MELSPEC linear mel-filter bank channel outputs -** 9 USER user defined sample kind -** 10 DISCRETE vector quantised data -** -** and the bit-encoding for the qualifiers (in octal) is -** _E 000100 has energy -** _N 000200 absolute energy suppressed -** _D 000400 has delta coefficients -** _A 001000 has acceleration coefficients -** _C 002000 is compressed -** _Z 004000 has zero mean static coef. -** _K 010000 has CRC checksum -** _O 020000 has 0'th cepstral coef. -*/ - -static int -htk_read_header (SF_PRIVATE *psf) -{ int sample_count, sample_period, marker ; - - psf_binheader_readf (psf, "pE444", 0, &sample_count, &sample_period, &marker) ; - - if (2 * sample_count + 12 != psf->filelength) - return SFE_HTK_BAD_FILE_LEN ; - - if (marker != 0x20000) - return SFE_HTK_NOT_WAVEFORM ; - - psf->sf.channels = 1 ; - - if (sample_period > 0) - { psf->sf.samplerate = 10000000 / sample_period ; - psf_log_printf (psf, "HTK Waveform file\n Sample Count : %d\n Sample Period : %d => %d Hz\n", - sample_count, sample_period, psf->sf.samplerate) ; - } - else - { psf->sf.samplerate = 16000 ; - psf_log_printf (psf, "HTK Waveform file\n Sample Count : %d\n Sample Period : %d (should be > 0) => Guessed sample rate %d Hz\n", - sample_count, sample_period, psf->sf.samplerate) ; - } ; - - psf->sf.format = SF_FORMAT_HTK | SF_FORMAT_PCM_16 ; - psf->bytewidth = 2 ; - - /* HTK always has a 12 byte header. */ - psf->dataoffset = 12 ; - psf->endian = SF_ENDIAN_BIG ; - - psf->datalength = psf->filelength - psf->dataoffset ; - - psf->blockwidth = psf->sf.channels * psf->bytewidth ; - - if (! psf->sf.frames && psf->blockwidth) - psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; - - return 0 ; -} /* htk_read_header */ -