2 ** Copyright (C) 1999-2005 Erik de Castro Lopo <erikd@mega-nerd.com>
4 ** This program is free software; you can redistribute it and/or modify
5 ** it under the terms of the GNU Lesser General Public License as published by
6 ** the Free Software Foundation; either version 2.1 of the License, or
7 ** (at your option) any later version.
9 ** This program is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ** GNU Lesser General Public License for more details.
14 ** You should have received a copy of the GNU Lesser General Public License
15 ** along with this program; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 #include "float_cast.h"
32 /*------------------------------------------------------------------------------
33 ** Macros to handle big/little endian issues.
36 #define FAP_MARKER (MAKE_MARKER ('f', 'a', 'p', ' '))
37 #define PAF_MARKER (MAKE_MARKER (' ', 'p', 'a', 'f'))
39 /*------------------------------------------------------------------------------
43 #define PAF_HEADER_LENGTH 2048
45 #define PAF24_SAMPLES_PER_BLOCK 10
46 #define PAF24_BLOCK_SIZE 32
48 /*------------------------------------------------------------------------------
62 { int max_blocks, channels, samplesperblock, blocksize ;
63 int read_block, write_block, read_count, write_count ;
64 sf_count_t sample_count ;
66 unsigned char *block ;
67 #if HAVE_FLEXIBLE_ARRAY
68 int data [] ; /* ISO C99 struct flexible array. */
70 int data [1] ; /* This is a hack and may not work. */
74 /*------------------------------------------------------------------------------
75 ** Private static functions.
78 static int paf24_init (SF_PRIVATE *psf) ;
80 static int paf_read_header (SF_PRIVATE *psf) ;
81 static int paf_write_header (SF_PRIVATE *psf, int calc_length) ;
83 static sf_count_t paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
84 static sf_count_t paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
85 static sf_count_t paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
86 static sf_count_t paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
88 static sf_count_t paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
89 static sf_count_t paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
90 static sf_count_t paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
91 static sf_count_t paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
93 static sf_count_t paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
101 /*------------------------------------------------------------------------------
106 paf_open (SF_PRIVATE *psf)
107 { int subformat, error, endian ;
109 psf->dataoffset = PAF_HEADER_LENGTH ;
111 if (psf->mode == SFM_READ || (psf->mode == SFM_RDWR && psf->filelength > 0))
112 { if ((error = paf_read_header (psf)))
116 subformat = psf->sf.format & SF_FORMAT_SUBMASK ;
118 if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
119 { if ((psf->sf.format & SF_FORMAT_TYPEMASK) != SF_FORMAT_PAF)
120 return SFE_BAD_OPEN_FORMAT ;
122 endian = psf->sf.format & SF_FORMAT_ENDMASK ;
124 /* PAF is by default big endian. */
125 psf->endian = SF_ENDIAN_BIG ;
127 if (endian == SF_ENDIAN_LITTLE || (CPU_IS_LITTLE_ENDIAN && (endian == SF_ENDIAN_CPU)))
128 psf->endian = SF_ENDIAN_LITTLE ;
130 if ((error = paf_write_header (psf, SF_FALSE)))
133 psf->write_header = paf_write_header ;
137 { case SF_FORMAT_PCM_S8 :
139 error = pcm_init (psf) ;
142 case SF_FORMAT_PCM_16 :
144 error = pcm_init (psf) ;
147 case SF_FORMAT_PCM_24 :
148 /* No bytewidth because of whacky 24 bit encoding. */
149 error = paf24_init (psf) ;
152 default : return SFE_PAF_UNKNOWN_FORMAT ;
158 /*------------------------------------------------------------------------------
162 paf_read_header (SF_PRIVATE *psf)
166 memset (&paf_fmt, 0, sizeof (paf_fmt)) ;
167 psf_binheader_readf (psf, "pm", 0, &marker) ;
169 psf_log_printf (psf, "Signature : '%M'\n", marker) ;
171 if (marker == PAF_MARKER)
172 { psf_binheader_readf (psf, "E444444", &(paf_fmt.version), &(paf_fmt.endianness),
173 &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
175 else if (marker == FAP_MARKER)
176 { psf_binheader_readf (psf, "e444444", &(paf_fmt.version), &(paf_fmt.endianness),
177 &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
180 return SFE_PAF_NO_MARKER ;
182 psf_log_printf (psf, "Version : %d\n", paf_fmt.version) ;
184 if (paf_fmt.version != 0)
185 { psf_log_printf (psf, "*** Bad version number. should be zero.\n") ;
186 return SFE_PAF_VERSION ;
189 psf_log_printf (psf, "Sample Rate : %d\n", paf_fmt.samplerate) ;
190 psf_log_printf (psf, "Channels : %d\n", paf_fmt.channels) ;
192 psf_log_printf (psf, "Endianness : %d => ", paf_fmt.endianness) ;
193 if (paf_fmt.endianness)
194 { psf_log_printf (psf, "Little\n", paf_fmt.endianness) ;
195 psf->endian = SF_ENDIAN_LITTLE ;
198 { psf_log_printf (psf, "Big\n", paf_fmt.endianness) ;
199 psf->endian = SF_ENDIAN_BIG ;
202 if (psf->filelength < PAF_HEADER_LENGTH)
203 return SFE_PAF_SHORT_HEADER ;
205 psf->datalength = psf->filelength - psf->dataoffset ;
207 psf_binheader_readf (psf, "p", (int) psf->dataoffset) ;
209 psf->sf.samplerate = paf_fmt.samplerate ;
210 psf->sf.channels = paf_fmt.channels ;
212 /* Only fill in type major. */
213 psf->sf.format = SF_FORMAT_PAF ;
215 psf_log_printf (psf, "Format : %d => ", paf_fmt.format) ;
217 /* PAF is by default big endian. */
218 psf->sf.format |= paf_fmt.endianness ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
220 switch (paf_fmt.format)
222 psf_log_printf (psf, "8 bit linear PCM\n") ;
225 psf->sf.format |= SF_FORMAT_PCM_S8 ;
227 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
228 psf->sf.frames = psf->datalength / psf->blockwidth ;
232 psf_log_printf (psf, "16 bit linear PCM\n") ;
235 psf->sf.format |= SF_FORMAT_PCM_16 ;
237 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
238 psf->sf.frames = psf->datalength / psf->blockwidth ;
242 psf_log_printf (psf, "24 bit linear PCM\n") ;
245 psf->sf.format |= SF_FORMAT_PCM_24 ;
247 psf->blockwidth = 0 ;
248 psf->sf.frames = PAF24_SAMPLES_PER_BLOCK * psf->datalength /
249 (PAF24_BLOCK_SIZE * psf->sf.channels) ;
252 default : psf_log_printf (psf, "Unknown\n") ;
253 return SFE_PAF_UNKNOWN_FORMAT ;
257 psf_log_printf (psf, "Source : %d => ", paf_fmt.source) ;
259 switch (paf_fmt.source)
260 { case 1 : psf_log_printf (psf, "Analog Recording\n") ;
262 case 2 : psf_log_printf (psf, "Digital Transfer\n") ;
264 case 3 : psf_log_printf (psf, "Multi-track Mixdown\n") ;
266 case 5 : psf_log_printf (psf, "Audio Resulting From DSP Processing\n") ;
268 default : psf_log_printf (psf, "Unknown\n") ;
273 } /* paf_read_header */
276 paf_write_header (SF_PRIVATE *psf, int calc_length)
279 /* PAF header already written so no need to re-write. */
280 if (psf_ftell (psf) >= PAF_HEADER_LENGTH)
283 psf->dataoffset = PAF_HEADER_LENGTH ;
285 psf->dataoffset = PAF_HEADER_LENGTH ;
287 /* Prevent compiler warning. */
288 calc_length = calc_length ;
290 switch (psf->sf.format & SF_FORMAT_SUBMASK)
291 { case SF_FORMAT_PCM_S8 :
292 paf_format = PAF_PCM_S8 ;
295 case SF_FORMAT_PCM_16 :
296 paf_format = PAF_PCM_16 ;
299 case SF_FORMAT_PCM_24 :
300 paf_format = PAF_PCM_24 ;
303 default : return SFE_PAF_UNKNOWN_FORMAT ;
306 /* Reset the current header length to zero. */
307 psf->header [0] = 0 ;
310 if (psf->endian == SF_ENDIAN_BIG)
311 { /* Marker, version, endianness, samplerate */
312 psf_binheader_writef (psf, "Em444", PAF_MARKER, 0, 0, psf->sf.samplerate) ;
313 /* format, channels, source */
314 psf_binheader_writef (psf, "E444", paf_format, psf->sf.channels, 0) ;
316 else if (psf->endian == SF_ENDIAN_LITTLE)
317 { /* Marker, version, endianness, samplerate */
318 psf_binheader_writef (psf, "em444", FAP_MARKER, 0, 1, psf->sf.samplerate) ;
319 /* format, channels, source */
320 psf_binheader_writef (psf, "e444", paf_format, psf->sf.channels, 0) ;
323 /* Zero fill to dataoffset. */
324 psf_binheader_writef (psf, "z", (size_t) (psf->dataoffset - psf->headindex)) ;
326 psf_fwrite (psf->header, psf->headindex, 1, psf) ;
329 } /* paf_write_header */
331 /*===============================================================================
332 ** 24 bit PAF files have a really weird encoding.
333 ** For a mono file, 10 samples (each being 3 bytes) are packed into a 32 byte
334 ** block. The 8 ints in this 32 byte block are then endian swapped (as ints)
335 ** if necessary before being written to disk.
336 ** For a stereo file, blocks of 10 samples from the same channel are encoded
337 ** into 32 bytes as for the mono case. The 32 byte blocks are then interleaved
339 ** Reading has to reverse the above process :-).
342 ** The code below attempts to gain efficiency while maintaining readability.
345 static int paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
346 static int paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
347 static int paf24_close (SF_PRIVATE *psf) ;
351 paf24_init (SF_PRIVATE *psf)
352 { PAF24_PRIVATE *ppaf24 ;
355 paf24size = sizeof (PAF24_PRIVATE) + psf->sf.channels *
356 (PAF24_BLOCK_SIZE + PAF24_SAMPLES_PER_BLOCK * sizeof (int)) ;
359 ** Not exatly sure why this needs to be here but the tests
364 if (! (psf->fdata = malloc (paf24size)))
365 return SFE_MALLOC_FAILED ;
367 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
368 memset (ppaf24, 0, paf24size) ;
370 ppaf24->channels = psf->sf.channels ;
371 ppaf24->samples = ppaf24->data ;
372 ppaf24->block = (unsigned char*) (ppaf24->data + PAF24_SAMPLES_PER_BLOCK * ppaf24->channels) ;
374 ppaf24->blocksize = PAF24_BLOCK_SIZE * ppaf24->channels ;
375 ppaf24->samplesperblock = PAF24_SAMPLES_PER_BLOCK ;
377 if (psf->mode == SFM_READ || psf->mode == SFM_RDWR)
378 { paf24_read_block (psf, ppaf24) ; /* Read first block. */
380 psf->read_short = paf24_read_s ;
381 psf->read_int = paf24_read_i ;
382 psf->read_float = paf24_read_f ;
383 psf->read_double = paf24_read_d ;
386 if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
387 { psf->write_short = paf24_write_s ;
388 psf->write_int = paf24_write_i ;
389 psf->write_float = paf24_write_f ;
390 psf->write_double = paf24_write_d ;
393 psf->seek = paf24_seek ;
394 psf->container_close = paf24_close ;
396 psf->filelength = psf_get_filelen (psf) ;
397 psf->datalength = psf->filelength - psf->dataoffset ;
399 if (psf->datalength % PAF24_BLOCK_SIZE)
400 { if (psf->mode == SFM_READ)
401 psf_log_printf (psf, "*** Warning : file seems to be truncated.\n") ;
402 ppaf24->max_blocks = psf->datalength / ppaf24->blocksize + 1 ;
405 ppaf24->max_blocks = psf->datalength / ppaf24->blocksize ;
407 ppaf24->read_block = 0 ;
408 if (psf->mode == SFM_RDWR)
409 ppaf24->write_block = ppaf24->max_blocks ;
411 ppaf24->write_block = 0 ;
413 psf->sf.frames = ppaf24->samplesperblock * ppaf24->max_blocks ;
414 ppaf24->sample_count = psf->sf.frames ;
420 paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset)
421 { PAF24_PRIVATE *ppaf24 ;
422 int newblock, newsample ;
424 if (psf->fdata == NULL)
425 { psf->error = SFE_INTERNAL ;
426 return PSF_SEEK_ERROR ;
429 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
431 if (mode == SFM_READ && ppaf24->write_count > 0)
432 paf24_write_block (psf, ppaf24) ;
434 newblock = offset / ppaf24->samplesperblock ;
435 newsample = offset % ppaf24->samplesperblock ;
439 if (psf->last_op == SFM_WRITE && ppaf24->write_count)
440 paf24_write_block (psf, ppaf24) ;
442 psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
443 ppaf24->read_block = newblock ;
444 paf24_read_block (psf, ppaf24) ;
445 ppaf24->read_count = newsample ;
449 if (offset > ppaf24->sample_count)
450 { psf->error = SFE_BAD_SEEK ;
451 return PSF_SEEK_ERROR ;
454 if (psf->last_op == SFM_WRITE && ppaf24->write_count)
455 paf24_write_block (psf, ppaf24) ;
457 psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
458 ppaf24->write_block = newblock ;
459 paf24_read_block (psf, ppaf24) ;
460 ppaf24->write_count = newsample ;
464 psf->error = SFE_BAD_SEEK ;
465 return PSF_SEEK_ERROR ;
468 return newblock * ppaf24->samplesperblock + newsample ;
472 paf24_close (SF_PRIVATE *psf)
473 { PAF24_PRIVATE *ppaf24 ;
475 if (psf->fdata == NULL)
478 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
480 if (psf->mode == SFM_WRITE || psf->mode == SFM_RDWR)
481 { if (ppaf24->write_count > 0)
482 paf24_write_block (psf, ppaf24) ;
488 /*---------------------------------------------------------------------------
491 paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
493 unsigned char *cptr ;
495 ppaf24->read_block ++ ;
496 ppaf24->read_count = 0 ;
498 if (ppaf24->read_block * ppaf24->samplesperblock > ppaf24->sample_count)
499 { memset (ppaf24->samples, 0, ppaf24->samplesperblock * ppaf24->channels) ;
503 /* Read the block. */
504 if ((k = psf_fread (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
505 psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, ppaf24->blocksize) ;
508 if (CPU_IS_LITTLE_ENDIAN)
509 { /* Do endian swapping if necessary. */
510 if (psf->endian == SF_ENDIAN_BIG)
511 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
514 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
515 { channel = k % ppaf24->channels ;
516 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
517 ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
521 { /* Do endian swapping if necessary. */
522 if (psf->endian == SF_ENDIAN_BIG)
523 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
526 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
527 { channel = k % ppaf24->channels ;
528 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
529 ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
534 } /* paf24_read_block */
537 paf24_read (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, int *ptr, int len)
538 { int count, total = 0 ;
541 { if (ppaf24->read_block * ppaf24->samplesperblock >= ppaf24->sample_count)
542 { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ;
546 if (ppaf24->read_count >= ppaf24->samplesperblock)
547 paf24_read_block (psf, ppaf24) ;
549 count = (ppaf24->samplesperblock - ppaf24->read_count) * ppaf24->channels ;
550 count = (len - total > count) ? count : len - total ;
552 memcpy (&(ptr [total]), &(ppaf24->samples [ppaf24->read_count * ppaf24->channels]), count * sizeof (int)) ;
554 ppaf24->read_count += count / ppaf24->channels ;
561 paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
562 { PAF24_PRIVATE *ppaf24 ;
564 int k, bufferlen, readcount, count ;
565 sf_count_t total = 0 ;
567 if (psf->fdata == NULL)
569 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
572 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
574 { readcount = (len >= bufferlen) ? bufferlen : len ;
575 count = paf24_read (psf, ppaf24, iptr, readcount) ;
576 for (k = 0 ; k < readcount ; k++)
577 ptr [total + k] = iptr [k] >> 16 ;
585 paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
586 { PAF24_PRIVATE *ppaf24 ;
589 if (psf->fdata == NULL)
591 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
593 total = paf24_read (psf, ppaf24, ptr, len) ;
599 paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
600 { PAF24_PRIVATE *ppaf24 ;
602 int k, bufferlen, readcount, count ;
603 sf_count_t total = 0 ;
606 if (psf->fdata == NULL)
608 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
610 normfact = (psf->norm_float == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
613 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
615 { readcount = (len >= bufferlen) ? bufferlen : len ;
616 count = paf24_read (psf, ppaf24, iptr, readcount) ;
617 for (k = 0 ; k < readcount ; k++)
618 ptr [total + k] = normfact * iptr [k] ;
626 paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
627 { PAF24_PRIVATE *ppaf24 ;
629 int k, bufferlen, readcount, count ;
630 sf_count_t total = 0 ;
633 if (psf->fdata == NULL)
635 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
637 normfact = (psf->norm_double == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
640 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
642 { readcount = (len >= bufferlen) ? bufferlen : len ;
643 count = paf24_read (psf, ppaf24, iptr, readcount) ;
644 for (k = 0 ; k < readcount ; k++)
645 ptr [total + k] = normfact * iptr [k] ;
652 /*---------------------------------------------------------------------------
656 paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
657 { int k, nextsample, channel ;
658 unsigned char *cptr ;
660 /* First pack block. */
662 if (CPU_IS_LITTLE_ENDIAN)
663 { for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
664 { channel = k % ppaf24->channels ;
665 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
666 nextsample = ppaf24->samples [k] >> 8 ;
667 cptr [0] = nextsample ;
668 cptr [1] = nextsample >> 8 ;
669 cptr [2] = nextsample >> 16 ;
672 /* Do endian swapping if necessary. */
673 if (psf->endian == SF_ENDIAN_BIG)
674 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
676 else if (CPU_IS_BIG_ENDIAN)
677 { /* This is correct. */
678 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
679 { channel = k % ppaf24->channels ;
680 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
681 nextsample = ppaf24->samples [k] >> 8 ;
682 cptr [0] = nextsample ;
683 cptr [1] = nextsample >> 8 ;
684 cptr [2] = nextsample >> 16 ;
686 if (psf->endian == SF_ENDIAN_BIG)
687 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
690 /* Write block to disk. */
691 if ((k = psf_fwrite (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
692 psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, ppaf24->blocksize) ;
694 if (ppaf24->sample_count < ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count)
695 ppaf24->sample_count = ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count ;
697 if (ppaf24->write_count == ppaf24->samplesperblock)
698 { ppaf24->write_block ++ ;
699 ppaf24->write_count = 0 ;
703 } /* paf24_write_block */
706 paf24_write (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, const int *ptr, int len)
707 { int count, total = 0 ;
710 { count = (ppaf24->samplesperblock - ppaf24->write_count) * ppaf24->channels ;
712 if (count > len - total)
713 count = len - total ;
715 memcpy (&(ppaf24->samples [ppaf24->write_count * ppaf24->channels]), &(ptr [total]), count * sizeof (int)) ;
717 ppaf24->write_count += count / ppaf24->channels ;
719 if (ppaf24->write_count >= ppaf24->samplesperblock)
720 paf24_write_block (psf, ppaf24) ;
727 paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
728 { PAF24_PRIVATE *ppaf24 ;
730 int k, bufferlen, writecount = 0, count ;
731 sf_count_t total = 0 ;
733 if (psf->fdata == NULL)
735 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
738 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
740 { writecount = (len >= bufferlen) ? bufferlen : len ;
741 for (k = 0 ; k < writecount ; k++)
742 iptr [k] = ptr [total + k] << 16 ;
743 count = paf24_write (psf, ppaf24, iptr, writecount) ;
746 if (count != writecount)
750 } /* paf24_write_s */
753 paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
754 { PAF24_PRIVATE *ppaf24 ;
755 int writecount, count ;
756 sf_count_t total = 0 ;
758 if (psf->fdata == NULL)
760 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
763 { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ;
765 count = paf24_write (psf, ppaf24, ptr, writecount) ;
769 if (count != writecount)
774 } /* paf24_write_i */
777 paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
778 { PAF24_PRIVATE *ppaf24 ;
780 int k, bufferlen, writecount = 0, count ;
781 sf_count_t total = 0 ;
784 if (psf->fdata == NULL)
786 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
788 normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
791 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
793 { writecount = (len >= bufferlen) ? bufferlen : len ;
794 for (k = 0 ; k < writecount ; k++)
795 iptr [k] = lrintf (normfact * ptr [total + k]) ;
796 count = paf24_write (psf, ppaf24, iptr, writecount) ;
799 if (count != writecount)
804 } /* paf24_write_f */
807 paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
808 { PAF24_PRIVATE *ppaf24 ;
810 int k, bufferlen, writecount = 0, count ;
811 sf_count_t total = 0 ;
814 if (psf->fdata == NULL)
816 ppaf24 = (PAF24_PRIVATE*) psf->fdata ;
818 normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
821 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
823 { writecount = (len >= bufferlen) ? bufferlen : len ;
824 for (k = 0 ; k < writecount ; k++)
825 iptr [k] = lrint (normfact * ptr [total+k]) ;
826 count = paf24_write (psf, ppaf24, iptr, writecount) ;
829 if (count != writecount)
834 } /* paf24_write_d */
838 ** Do not edit or modify anything in this comment block.
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840 ** revision control system.
842 ** arch-tag: 477a5308-451e-4bbd-bab4-fab6caa4e884