sndfile fx
vspader
parent
1844787fc7
commit
13c2f44d2c
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@ -0,0 +1,538 @@
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/*
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** Copyright (C) 2005 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as published by
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** the Free Software Foundation; either version 2.1 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "sfconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include "sndfile.h"
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#include "sfendian.h"
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#include "float_cast.h"
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#include "common.h"
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/*------------------------------------------------------------------------------
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** Macros to handle big/little endian issues.
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*/
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#define aac_MARKER MAKE_MARKER ('a', 'a', 'c', ' ')
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#define alac_MARKER MAKE_MARKER ('a', 'l', 'a', 'c')
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#define alaw_MARKER MAKE_MARKER ('a', 'l', 'a', 'w')
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#define caff_MARKER MAKE_MARKER ('c', 'a', 'f', 'f')
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#define chan_MARKER MAKE_MARKER ('c', 'h', 'a', 'n')
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#define data_MARKER MAKE_MARKER ('d', 'a', 't', 'a')
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#define desc_MARKER MAKE_MARKER ('d', 'e', 's', 'c')
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#define edct_MARKER MAKE_MARKER ('e', 'd', 'c', 't')
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#define free_MARKER MAKE_MARKER ('f', 'r', 'e', 'e')
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#define ima4_MARKER MAKE_MARKER ('i', 'm', 'a', '4')
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#define info_MARKER MAKE_MARKER ('i', 'n', 'f', 'o')
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#define inst_MARKER MAKE_MARKER ('i', 'n', 's', 't')
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#define kuki_MARKER MAKE_MARKER ('k', 'u', 'k', 'i')
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#define lpcm_MARKER MAKE_MARKER ('l', 'p', 'c', 'm')
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#define mark_MARKER MAKE_MARKER ('m', 'a', 'r', 'k')
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#define midi_MARKER MAKE_MARKER ('m', 'i', 'd', 'i')
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#define mp1_MARKER MAKE_MARKER ('.', 'm', 'p', '1')
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#define mp2_MARKER MAKE_MARKER ('.', 'm', 'p', '2')
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#define mp3_MARKER MAKE_MARKER ('.', 'm', 'p', '3')
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#define ovvw_MARKER MAKE_MARKER ('o', 'v', 'v', 'w')
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#define pakt_MARKER MAKE_MARKER ('p', 'a', 'k', 't')
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#define peak_MARKER MAKE_MARKER ('p', 'e', 'a', 'k')
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#define regn_MARKER MAKE_MARKER ('r', 'e', 'g', 'n')
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#define strg_MARKER MAKE_MARKER ('s', 't', 'r', 'g')
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#define umid_MARKER MAKE_MARKER ('u', 'm', 'i', 'd')
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#define uuid_MARKER MAKE_MARKER ('u', 'u', 'i', 'd')
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#define ulaw_MARKER MAKE_MARKER ('u', 'l', 'a', 'w')
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#define MAC3_MARKER MAKE_MARKER ('M', 'A', 'C', '3')
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#define MAC6_MARKER MAKE_MARKER ('M', 'A', 'C', '6')
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#define CAF_PEAK_CHUNK_SIZE(ch) (sizeof (int) + ch * (sizeof (float) + 8))
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#define SFE_CAF_NOT_CAF 666
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#define SFE_CAF_NO_DESC 667
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#define SFE_CAF_BAD_PEAK 668
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/*------------------------------------------------------------------------------
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** Typedefs.
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*/
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typedef struct
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{ unsigned char srate [8] ;
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unsigned int fmt_id ;
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unsigned int fmt_flags ;
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unsigned int pkt_bytes ;
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unsigned int pkt_frames ;
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unsigned int channels_per_frame ;
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unsigned int bits_per_chan ;
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} DESC_CHUNK ;
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/*------------------------------------------------------------------------------
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** Private static functions.
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*/
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static int caf_close (SF_PRIVATE *psf) ;
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static int caf_read_header (SF_PRIVATE *psf) ;
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static int caf_write_header (SF_PRIVATE *psf, int calc_length) ;
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/*------------------------------------------------------------------------------
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** Public function.
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*/
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int
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caf_open (SF_PRIVATE *psf)
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{ int subformat, format, error = 0 ;
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if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR && psf->filelength > 0))
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{ if ((error = caf_read_header (psf)))
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return error ;
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} ;
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subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
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if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
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{ if (psf->is_pipe)
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return SFE_NO_PIPE_WRITE ;
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format = psf->sf.format & SF_FORMAT_TYPEMASK ;
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if (format != SF_FORMAT_CAF)
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return SFE_BAD_OPEN_FORMAT ;
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psf->blockwidth = psf->bytewidth * psf->sf.channels ;
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if (psf->mode != SFM_RDWR || psf->filelength < 44)
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{ psf->filelength = 0 ;
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psf->datalength = 0 ;
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psf->dataoffset = 0 ;
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psf->sf.frames = 0 ;
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} ;
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psf->str_flags = SF_STR_ALLOW_START ;
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/*
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** By default, add the peak chunk to floating point files. Default behaviour
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** can be switched off using sf_command (SFC_SET_PEAK_CHUNK, SF_FALSE).
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*/
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if (psf->mode == SFM_WRITE && (subformat == SF_FORMAT_FLOAT || subformat == SF_FORMAT_DOUBLE))
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{ if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
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return SFE_MALLOC_FAILED ;
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psf->peak_info->peak_loc = SF_PEAK_START ;
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} ;
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if ((error = caf_write_header (psf, SF_FALSE)) != 0)
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return error ;
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psf->write_header = caf_write_header ;
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} ;
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psf->container_close = caf_close ;
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/*psf->command = caf_command ;*/
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switch (subformat)
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{ case SF_FORMAT_PCM_S8 :
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case SF_FORMAT_PCM_16 :
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case SF_FORMAT_PCM_24 :
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case SF_FORMAT_PCM_32 :
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error = pcm_init (psf) ;
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break ;
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case SF_FORMAT_ULAW :
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error = ulaw_init (psf) ;
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break ;
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case SF_FORMAT_ALAW :
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error = alaw_init (psf) ;
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break ;
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/* Lite remove start */
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case SF_FORMAT_FLOAT :
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error = float32_init (psf) ;
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break ;
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case SF_FORMAT_DOUBLE :
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error = double64_init (psf) ;
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break ;
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/* Lite remove end */
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default :
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return SFE_UNSUPPORTED_ENCODING ;
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} ;
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return error ;
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} /* caf_open */
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static int
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caf_close (SF_PRIVATE *psf)
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{
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if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
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caf_write_header (psf, SF_TRUE) ;
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return 0 ;
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} /* caf_close */
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/*------------------------------------------------------------------------------
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*/
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static int
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decode_desc_chunk (SF_PRIVATE *psf, const DESC_CHUNK *desc)
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{ int format ;
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psf->sf.channels = desc->channels_per_frame ;
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format = SF_FORMAT_CAF | (psf->endian == SF_ENDIAN_LITTLE ? SF_ENDIAN_LITTLE : 0) ;
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if (desc->fmt_id == lpcm_MARKER && desc->fmt_flags & 1)
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{ /* Floating point data. */
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if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame)
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{ psf->bytewidth = 4 ;
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return format | SF_FORMAT_FLOAT ;
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} ;
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if (desc->bits_per_chan == 64 && desc->pkt_bytes == 8 * desc->channels_per_frame)
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{ psf->bytewidth = 8 ;
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return format | SF_FORMAT_DOUBLE ;
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} ;
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} ;
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if ((desc->fmt_flags & 1) != 0)
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{ psf_log_printf (psf, "**** Ooops, 'desc' chunk suggests float data, but other info invalid.\n") ;
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return 0 ;
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} ;
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if (desc->fmt_id == lpcm_MARKER)
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{ /* Integer data. */
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if (desc->bits_per_chan == 32 && desc->pkt_bytes == 4 * desc->channels_per_frame)
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{ psf->bytewidth = 4 ;
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return format | SF_FORMAT_PCM_32 ;
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} ;
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if (desc->bits_per_chan == 24 && desc->pkt_bytes == 3 * desc->channels_per_frame)
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{ psf->bytewidth = 3 ;
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return format | SF_FORMAT_PCM_24 ;
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} ;
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if (desc->bits_per_chan == 16 && desc->pkt_bytes == 2 * desc->channels_per_frame)
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{ psf->bytewidth = 2 ;
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return format | SF_FORMAT_PCM_16 ;
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} ;
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if (desc->bits_per_chan == 8 && desc->pkt_bytes == 1 * desc->channels_per_frame)
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{ psf->bytewidth = 1 ;
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return format | SF_FORMAT_PCM_S8 ;
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} ;
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} ;
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if (desc->fmt_id == alaw_MARKER && desc->bits_per_chan == 8)
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{ psf->bytewidth = 1 ;
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return format | SF_FORMAT_ALAW ;
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} ;
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if (desc->fmt_id == ulaw_MARKER && desc->bits_per_chan == 8)
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{ psf->bytewidth = 1 ;
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return format | SF_FORMAT_ULAW ;
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} ;
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return 0 ;
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} /* decode_desc_chunk */
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static int
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caf_read_header (SF_PRIVATE *psf)
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{ DESC_CHUNK desc ;
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sf_count_t chunk_size ;
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double srate ;
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short version, flags ;
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int marker, k, have_data = 0 ;
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memset (&desc, 0, sizeof (desc)) ;
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/* Set position to start of file to begin reading header. */
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psf_binheader_readf (psf, "pmE2E2", 0, &marker, &version, &flags) ;
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psf_log_printf (psf, "%M\n Version : %d\n Flags : %x\n", marker, version, flags) ;
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if (marker != caff_MARKER)
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return SFE_CAF_NOT_CAF ;
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psf_binheader_readf (psf, "mE8b", &marker, &chunk_size, psf->u.ucbuf, 8) ;
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srate = double64_be_read (psf->u.ucbuf) ;
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LSF_SNPRINTF (psf->u.cbuf, sizeof (psf->u.cbuf), "%5.3f", srate) ;
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psf_log_printf (psf, "%M : %D\n Sample rate : %s\n", marker, chunk_size, psf->u.cbuf) ;
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if (marker != desc_MARKER)
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return SFE_CAF_NO_DESC ;
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if (chunk_size < sizeof (DESC_CHUNK))
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{ psf_log_printf (psf, "**** Chunk size too small. Should be > 32 bytes.\n") ;
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return SFE_MALFORMED_FILE ;
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} ;
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psf->sf.samplerate = lrint (srate) ;
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psf_binheader_readf (psf, "mE44444", &desc.fmt_id, &desc.fmt_flags, &desc.pkt_bytes, &desc.pkt_frames,
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&desc.channels_per_frame, &desc.bits_per_chan) ;
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psf_log_printf (psf, " Format id : %M\n Format flags : %x\n Bytes / packet : %u\n"
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" Frames / packet : %u\n Channels / frame : %u\n Bits / channel : %u\n",
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desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ;
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if (chunk_size > sizeof (DESC_CHUNK))
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psf_binheader_readf (psf, "j", (int) (chunk_size - sizeof (DESC_CHUNK))) ;
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psf->sf.channels = desc.channels_per_frame ;
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while (have_data == 0 && psf_ftell (psf) < psf->filelength - SIGNED_SIZEOF (marker))
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{ psf_binheader_readf (psf, "mE8", &marker, &chunk_size) ;
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switch (marker)
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{ case peak_MARKER :
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psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
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if (chunk_size != CAF_PEAK_CHUNK_SIZE (psf->sf.channels))
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{ psf_binheader_readf (psf, "j", (int) chunk_size) ;
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psf_log_printf (psf, "*** File PEAK chunk %D should be %d.\n", chunk_size, CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
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return SFE_CAF_BAD_PEAK ;
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} ;
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if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
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return SFE_MALLOC_FAILED ;
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/* read in rest of PEAK chunk. */
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psf_binheader_readf (psf, "E4", & (psf->peak_info->edit_number)) ;
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psf_log_printf (psf, " edit count : %d\n", psf->peak_info->edit_number) ;
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psf_log_printf (psf, " Ch Position Value\n") ;
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for (k = 0 ; k < psf->sf.channels ; k++)
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{ sf_count_t position ;
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float value ;
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psf_binheader_readf (psf, "Ef8", &value, &position) ;
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psf->peak_info->peaks [k].value = value ;
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psf->peak_info->peaks [k].position = position ;
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LSF_SNPRINTF (psf->u.cbuf, sizeof (psf->u.cbuf), " %2d %-12ld %g\n", k, (long) position, value) ;
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psf_log_printf (psf, psf->u.cbuf) ;
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} ;
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psf->peak_info->peak_loc = SF_PEAK_START ;
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break ;
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case free_MARKER :
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psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
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psf_binheader_readf (psf, "j", (int) chunk_size) ;
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break ;
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case data_MARKER :
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psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
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psf_binheader_readf (psf, "E4", &k) ;
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psf_log_printf (psf, " edit : %u\n", k) ;
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have_data = 1 ;
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break ;
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default :
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psf_log_printf (psf, " %M : %D (skipped)\n", marker, chunk_size) ;
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psf_binheader_readf (psf, "j", (int) chunk_size) ;
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break ;
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} ;
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} ;
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if (have_data == 0)
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{ psf_log_printf (psf, "**** Error, could not find 'data' chunk.\n") ;
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return SFE_MALFORMED_FILE ;
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} ;
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psf_log_printf (psf, "End\n") ;
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psf->dataoffset = psf_ftell (psf) ;
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psf->datalength = psf->filelength - psf->dataoffset ;
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psf->endian = (desc.fmt_flags & 2) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
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if ((psf->sf.format = decode_desc_chunk (psf, &desc)) == 0)
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return SFE_UNSUPPORTED_ENCODING ;
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if (psf->bytewidth > 0)
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psf->sf.frames = psf->datalength / psf->bytewidth ;
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return 0 ;
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} /* caf_read_header */
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/*------------------------------------------------------------------------------
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*/
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static int
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caf_write_header (SF_PRIVATE *psf, int calc_length)
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{ DESC_CHUNK desc ;
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sf_count_t current, free_len ;
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int subformat ;
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memset (&desc, 0, sizeof (desc)) ;
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current = psf_ftell (psf) ;
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if (calc_length)
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{ psf->filelength = psf_get_filelen (psf) ;
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psf->datalength = psf->filelength - psf->dataoffset ;
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if (psf->dataend)
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psf->datalength -= psf->filelength - psf->dataend ;
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if (psf->bytewidth > 0)
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psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ;
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} ;
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/* Reset the current header length to zero. */
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psf->header [0] = 0 ;
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psf->headindex = 0 ;
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psf_fseek (psf, 0, SEEK_SET) ;
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/* 'caff' marker, version and flags. */
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psf_binheader_writef (psf, "Em22", caff_MARKER, 1, 0) ;
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/* 'desc' marker and chunk size. */
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psf_binheader_writef (psf, "Em8", desc_MARKER, (sf_count_t) (sizeof (DESC_CHUNK))) ;
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double64_be_write (1.0 * psf->sf.samplerate, psf->u.ucbuf) ;
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psf_binheader_writef (psf, "b", psf->u.ucbuf, 8) ;
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subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
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psf->endian = psf->sf.format & SF_FORMAT_ENDMASK ;
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if (CPU_IS_BIG_ENDIAN && (psf->endian == 0 || psf->endian == SF_ENDIAN_CPU))
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psf->endian = SF_ENDIAN_BIG ;
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else if (CPU_IS_LITTLE_ENDIAN && (psf->endian == SF_ENDIAN_LITTLE || psf->endian == SF_ENDIAN_CPU))
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psf->endian = SF_ENDIAN_LITTLE ;
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if (psf->endian == SF_ENDIAN_LITTLE)
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desc.fmt_flags = 2 ;
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else
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psf->endian = SF_ENDIAN_BIG ;
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/* initial section (same for all, it appears) */
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switch (subformat)
|
||||
{ case SF_FORMAT_PCM_S8 :
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
psf->bytewidth = 1 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 8 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_PCM_16 :
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
psf->bytewidth = 2 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 16 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_PCM_24 :
|
||||
psf->bytewidth = 3 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 24 ;
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_PCM_32 :
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
psf->bytewidth = 4 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 32 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_FLOAT :
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
desc.fmt_flags |= 1 ;
|
||||
psf->bytewidth = 4 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 32 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_DOUBLE :
|
||||
desc.fmt_id = lpcm_MARKER ;
|
||||
desc.fmt_flags |= 1 ;
|
||||
psf->bytewidth = 8 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 64 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_ALAW :
|
||||
desc.fmt_id = alaw_MARKER ;
|
||||
psf->bytewidth = 1 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 8 ;
|
||||
break ;
|
||||
|
||||
case SF_FORMAT_ULAW :
|
||||
desc.fmt_id = ulaw_MARKER ;
|
||||
psf->bytewidth = 1 ;
|
||||
desc.pkt_bytes = psf->bytewidth * psf->sf.channels ;
|
||||
desc.pkt_frames = 1 ;
|
||||
desc.channels_per_frame = psf->sf.channels ;
|
||||
desc.bits_per_chan = 8 ;
|
||||
break ;
|
||||
|
||||
default :
|
||||
return SFE_UNIMPLEMENTED ;
|
||||
} ;
|
||||
|
||||
psf_binheader_writef (psf, "mE44444", desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ;
|
||||
|
||||
#if 0
|
||||
if (psf->str_flags & SF_STR_LOCATE_START)
|
||||
caf_write_strings (psf, SF_STR_LOCATE_START) ;
|
||||
#endif
|
||||
|
||||
if (psf->peak_info != NULL)
|
||||
{ int k ;
|
||||
psf_binheader_writef (psf, "Em84", peak_MARKER, (sf_count_t) CAF_PEAK_CHUNK_SIZE (psf->sf.channels), psf->peak_info->edit_number) ;
|
||||
for (k = 0 ; k < psf->sf.channels ; k++)
|
||||
psf_binheader_writef (psf, "Ef8", (float) psf->peak_info->peaks [k].value, psf->peak_info->peaks [k].position) ;
|
||||
} ;
|
||||
|
||||
/* Add free chunk so that the actual audio data starts at a multiple 0x1000. */
|
||||
free_len = 0x1000 - psf->headindex - 16 - 12 ;
|
||||
while (free_len < 0)
|
||||
free_len += 0x1000 ;
|
||||
psf_binheader_writef (psf, "Em8z", free_MARKER, free_len, (int) free_len) ;
|
||||
|
||||
psf_binheader_writef (psf, "Em84", data_MARKER, psf->datalength, 0) ;
|
||||
|
||||
psf_fwrite (psf->header, psf->headindex, 1, psf) ;
|
||||
if (psf->error)
|
||||
return psf->error ;
|
||||
|
||||
psf->dataoffset = psf->headindex ;
|
||||
if (current < psf->dataoffset)
|
||||
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
|
||||
else if (current > 0)
|
||||
psf_fseek (psf, current, SEEK_SET) ;
|
||||
|
||||
return psf->error ;
|
||||
} /* caf_write_header */
|
||||
|
||||
/*
|
||||
** 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: 65883e65-bd3c-4618-9241-d3c02fd630bd
|
||||
*/
|
||||
Loading…
Reference in New Issue