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Diffstat (limited to 'libs/libsndfile/src/avr.c')
| -rw-r--r-- | libs/libsndfile/src/avr.c | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/libs/libsndfile/src/avr.c b/libs/libsndfile/src/avr.c deleted file mode 100644 index ad02c048ac..0000000000 --- a/libs/libsndfile/src/avr.c +++ /dev/null @@ -1,254 +0,0 @@ -/* -** Copyright (C) 2004-2006 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 "sndfile.h" -#include "sfendian.h" -#include "common.h" - -#define TWOBIT_MARKER (MAKE_MARKER ('2', 'B', 'I', 'T')) -#define AVR_HDR_SIZE 128 - -#define SFE_AVR_X 666 - -/* -** From: hyc@hanauma.Jpl.Nasa.Gov (Howard Chu) -** -** A lot of PD software exists to play Mac .snd files on the ST. One other -** format that seems pretty popular (used by a number of commercial packages) -** is the AVR format (from Audio Visual Research). This format has a 128 byte -** header that looks like this (its actually packed, but thats not portable): -*/ - -typedef struct -{ int marker ; /* 2BIT */ - char name [8] ; /* null-padded sample name */ - short mono ; /* 0 = mono, 0xffff = stereo */ - short rez ; /* 8 = 8 bit, 16 = 16 bit */ - short sign ; /* 0 = unsigned, 0xffff = signed */ - - short loop ; /* 0 = no loop, 0xffff = looping sample */ - short midi ; /* 0xffff = no MIDI note assigned, */ - /* 0xffXX = single key note assignment */ - /* 0xLLHH = key split, low/hi note */ - int srate ; /* sample frequency in hertz */ - int frames ; /* sample length in bytes or words (see rez) */ - int lbeg ; /* offset to start of loop in bytes or words. */ - /* set to zero if unused */ - int lend ; /* offset to end of loop in bytes or words. */ - /* set to sample length if unused */ - short res1 ; /* Reserved, MIDI keyboard split */ - short res2 ; /* Reserved, sample compression */ - short res3 ; /* Reserved */ - char ext [20] ; /* Additional filename space, used if (name[7] != 0) */ - char user [64] ; /* User defined. Typically ASCII message */ -} AVR_HEADER ; - -/*------------------------------------------------------------------------------ -** Private static functions. -*/ - -static int avr_close (SF_PRIVATE *psf) ; - -static int avr_read_header (SF_PRIVATE *psf) ; -static int avr_write_header (SF_PRIVATE *psf, int calc_length) ; - -/*------------------------------------------------------------------------------ -** Public function. -*/ - -int -avr_open (SF_PRIVATE *psf) -{ int error = 0 ; - - if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR && psf->filelength > 0)) - { if ((error = avr_read_header (psf))) - return error ; - } ; - - if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_AVR) - return SFE_BAD_OPEN_FORMAT ; - - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - { psf->endian = psf->sf.format & SF_FORMAT_ENDMASK ; - psf->endian = SF_ENDIAN_BIG ; - - if (avr_write_header (psf, SF_FALSE)) - return psf->error ; - - psf->write_header = avr_write_header ; - } ; - - psf->container_close = avr_close ; - - psf->blockwidth = psf->bytewidth * psf->sf.channels ; - - error = pcm_init (psf) ; - - return error ; -} /* avr_open */ - -static int -avr_read_header (SF_PRIVATE *psf) -{ AVR_HEADER hdr ; - - memset (&hdr, 0, sizeof (hdr)) ; - - psf_binheader_readf (psf, "pmb", 0, &hdr.marker, &hdr.name, sizeof (hdr.name)) ; - psf_log_printf (psf, "%M\n", hdr.marker) ; - - if (hdr.marker != TWOBIT_MARKER) - return SFE_AVR_X ; - - psf_log_printf (psf, " Name : %s\n", hdr.name) ; - - psf_binheader_readf (psf, "E22222", &hdr.mono, &hdr.rez, &hdr.sign, &hdr.loop, &hdr.midi) ; - - psf->sf.channels = (hdr.mono & 1) + 1 ; - - psf_log_printf (psf, " Channels : %d\n Bit width : %d\n Signed : %s\n", - (hdr.mono & 1) + 1, hdr.rez, hdr.sign ? "yes" : "no") ; - - switch ((hdr.rez << 16) + (hdr.sign & 1)) - { case ((8 << 16) + 0) : - psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_U8 ; - psf->bytewidth = 1 ; - break ; - - case ((8 << 16) + 1) : - psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_S8 ; - psf->bytewidth = 1 ; - break ; - - case ((16 << 16) + 1) : - psf->sf.format = SF_FORMAT_AVR | SF_FORMAT_PCM_16 ; - psf->bytewidth = 2 ; - break ; - - default : - psf_log_printf (psf, "Error : bad rez/sign combination.\n") ; - return SFE_AVR_X ; - } ; - - psf_binheader_readf (psf, "E4444", &hdr.srate, &hdr.frames, &hdr.lbeg, &hdr.lend) ; - - psf->sf.frames = hdr.frames ; - psf->sf.samplerate = hdr.srate ; - - psf_log_printf (psf, " Frames : %D\n", psf->sf.frames) ; - psf_log_printf (psf, " Sample rate : %d\n", psf->sf.samplerate) ; - - psf_binheader_readf (psf, "E222", &hdr.res1, &hdr.res2, &hdr.res3) ; - psf_binheader_readf (psf, "bb", hdr.ext, sizeof (hdr.ext), hdr.user, sizeof (hdr.user)) ; - - psf_log_printf (psf, " Ext : %s\n User : %s\n", hdr.ext, hdr.user) ; - - psf->endian = SF_ENDIAN_BIG ; - - psf->dataoffset = AVR_HDR_SIZE ; - psf->datalength = hdr.frames * (hdr.rez / 8) ; - - if (psf->fileoffset > 0) - psf->filelength = AVR_HDR_SIZE + psf->datalength ; - - if (psf_ftell (psf) != psf->dataoffset) - psf_binheader_readf (psf, "j", psf->dataoffset - psf_ftell (psf)) ; - - psf->blockwidth = psf->sf.channels * psf->bytewidth ; - - if (psf->sf.frames == 0 && psf->blockwidth) - psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; - - return 0 ; -} /* avr_read_header */ - -static int -avr_write_header (SF_PRIVATE *psf, int calc_length) -{ sf_count_t current ; - int sign ; - - if (psf->pipeoffset > 0) - return 0 ; - - current = psf_ftell (psf) ; - - if (calc_length) - { psf->filelength = psf_get_filelen (psf) ; - - psf->datalength = psf->filelength - psf->dataoffset ; - if (psf->dataend) - psf->datalength -= psf->filelength - psf->dataend ; - - psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; - } ; - - /* Reset the current header length to zero. */ - psf->header [0] = 0 ; - psf->headindex = 0 ; - - /* - ** Only attempt to seek if we are not writng to a pipe. If we are - ** writing to a pipe we shouldn't be here anyway. - */ - if (psf->is_pipe == SF_FALSE) - psf_fseek (psf, 0, SEEK_SET) ; - - psf_binheader_writef (psf, "Emz22", TWOBIT_MARKER, make_size_t (8), - psf->sf.channels == 2 ? 0xFFFF : 0, psf->bytewidth * 8) ; - - sign = ((psf->sf.format & SF_FORMAT_SUBMASK) == SF_FORMAT_PCM_U8) ? 0 : 0xFFFF ; - - psf_binheader_writef (psf, "E222", sign, 0, 0xFFFF) ; - psf_binheader_writef (psf, "E4444", psf->sf.samplerate, psf->sf.frames, 0, 0) ; - - psf_binheader_writef (psf, "E222zz", 0, 0, 0, make_size_t (20), make_size_t (64)) ; - - /* 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 ; -} /* avr_write_header */ - -static int -avr_close (SF_PRIVATE *psf) -{ - if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR) - avr_write_header (psf, SF_TRUE) ; - - return 0 ; -} /* avr_close */ - -/* -** Do not edit or modify anything in this comment block. -** The arch-tag line is a file identity tag for the GNU Arch -** revision control system. -** -** arch-tag: 0823d454-f39a-4a28-a776-607f1ef33b52 -*/ |