2 ** Copyright (C) 1999-2011 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.
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->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
112 { if ((error = paf_read_header (psf)))
116 subformat = SF_CODEC (psf->sf.format) ;
118 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
119 { if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_PAF)
120 return SFE_BAD_OPEN_FORMAT ;
122 endian = SF_ENDIAN (psf->sf.format) ;
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 if (psf->filelength < PAF_HEADER_LENGTH)
167 return SFE_PAF_SHORT_HEADER ;
169 memset (&paf_fmt, 0, sizeof (paf_fmt)) ;
170 psf_binheader_readf (psf, "pm", 0, &marker) ;
172 psf_log_printf (psf, "Signature : '%M'\n", marker) ;
174 if (marker == PAF_MARKER)
175 { psf_binheader_readf (psf, "E444444", &(paf_fmt.version), &(paf_fmt.endianness),
176 &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
178 else if (marker == FAP_MARKER)
179 { psf_binheader_readf (psf, "e444444", &(paf_fmt.version), &(paf_fmt.endianness),
180 &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
183 return SFE_PAF_NO_MARKER ;
185 psf_log_printf (psf, "Version : %d\n", paf_fmt.version) ;
187 if (paf_fmt.version != 0)
188 { psf_log_printf (psf, "*** Bad version number. should be zero.\n") ;
189 return SFE_PAF_VERSION ;
192 psf_log_printf (psf, "Sample Rate : %d\n", paf_fmt.samplerate) ;
193 psf_log_printf (psf, "Channels : %d\n", paf_fmt.channels) ;
195 psf_log_printf (psf, "Endianness : %d => ", paf_fmt.endianness) ;
196 if (paf_fmt.endianness)
197 { psf_log_printf (psf, "Little\n", paf_fmt.endianness) ;
198 psf->endian = SF_ENDIAN_LITTLE ;
201 { psf_log_printf (psf, "Big\n", paf_fmt.endianness) ;
202 psf->endian = SF_ENDIAN_BIG ;
205 if (paf_fmt.channels > SF_MAX_CHANNELS)
206 return SFE_PAF_BAD_CHANNELS ;
208 psf->datalength = psf->filelength - psf->dataoffset ;
210 psf_binheader_readf (psf, "p", (int) psf->dataoffset) ;
212 psf->sf.samplerate = paf_fmt.samplerate ;
213 psf->sf.channels = paf_fmt.channels ;
215 /* Only fill in type major. */
216 psf->sf.format = SF_FORMAT_PAF ;
218 psf_log_printf (psf, "Format : %d => ", paf_fmt.format) ;
220 /* PAF is by default big endian. */
221 psf->sf.format |= paf_fmt.endianness ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
223 switch (paf_fmt.format)
225 psf_log_printf (psf, "8 bit linear PCM\n") ;
228 psf->sf.format |= SF_FORMAT_PCM_S8 ;
230 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
231 psf->sf.frames = psf->datalength / psf->blockwidth ;
235 psf_log_printf (psf, "16 bit linear PCM\n") ;
238 psf->sf.format |= SF_FORMAT_PCM_16 ;
240 psf->blockwidth = psf->bytewidth * psf->sf.channels ;
241 psf->sf.frames = psf->datalength / psf->blockwidth ;
245 psf_log_printf (psf, "24 bit linear PCM\n") ;
248 psf->sf.format |= SF_FORMAT_PCM_24 ;
250 psf->blockwidth = 0 ;
251 psf->sf.frames = PAF24_SAMPLES_PER_BLOCK * psf->datalength /
252 (PAF24_BLOCK_SIZE * psf->sf.channels) ;
255 default : psf_log_printf (psf, "Unknown\n") ;
256 return SFE_PAF_UNKNOWN_FORMAT ;
260 psf_log_printf (psf, "Source : %d => ", paf_fmt.source) ;
262 switch (paf_fmt.source)
263 { case 1 : psf_log_printf (psf, "Analog Recording\n") ;
265 case 2 : psf_log_printf (psf, "Digital Transfer\n") ;
267 case 3 : psf_log_printf (psf, "Multi-track Mixdown\n") ;
269 case 5 : psf_log_printf (psf, "Audio Resulting From DSP Processing\n") ;
271 default : psf_log_printf (psf, "Unknown\n") ;
276 } /* paf_read_header */
279 paf_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
282 /* PAF header already written so no need to re-write. */
283 if (psf_ftell (psf) >= PAF_HEADER_LENGTH)
286 psf->dataoffset = PAF_HEADER_LENGTH ;
288 switch (SF_CODEC (psf->sf.format))
289 { case SF_FORMAT_PCM_S8 :
290 paf_format = PAF_PCM_S8 ;
293 case SF_FORMAT_PCM_16 :
294 paf_format = PAF_PCM_16 ;
297 case SF_FORMAT_PCM_24 :
298 paf_format = PAF_PCM_24 ;
301 default : return SFE_PAF_UNKNOWN_FORMAT ;
304 /* Reset the current header length to zero. */
305 psf->header [0] = 0 ;
308 if (psf->endian == SF_ENDIAN_BIG)
309 { /* Marker, version, endianness, samplerate */
310 psf_binheader_writef (psf, "Em444", PAF_MARKER, 0, 0, psf->sf.samplerate) ;
311 /* format, channels, source */
312 psf_binheader_writef (psf, "E444", paf_format, psf->sf.channels, 0) ;
314 else if (psf->endian == SF_ENDIAN_LITTLE)
315 { /* Marker, version, endianness, samplerate */
316 psf_binheader_writef (psf, "em444", FAP_MARKER, 0, 1, psf->sf.samplerate) ;
317 /* format, channels, source */
318 psf_binheader_writef (psf, "e444", paf_format, psf->sf.channels, 0) ;
321 /* Zero fill to dataoffset. */
322 psf_binheader_writef (psf, "z", (size_t) (psf->dataoffset - psf->headindex)) ;
324 psf_fwrite (psf->header, psf->headindex, 1, psf) ;
327 } /* paf_write_header */
329 /*===============================================================================
330 ** 24 bit PAF files have a really weird encoding.
331 ** For a mono file, 10 samples (each being 3 bytes) are packed into a 32 byte
332 ** block. The 8 ints in this 32 byte block are then endian swapped (as ints)
333 ** if necessary before being written to disk.
334 ** For a stereo file, blocks of 10 samples from the same channel are encoded
335 ** into 32 bytes as for the mono case. The 32 byte blocks are then interleaved
337 ** Reading has to reverse the above process :-).
340 ** The code below attempts to gain efficiency while maintaining readability.
343 static int paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
344 static int paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
345 static int paf24_close (SF_PRIVATE *psf) ;
349 paf24_init (SF_PRIVATE *psf)
350 { PAF24_PRIVATE *ppaf24 ;
353 paf24size = sizeof (PAF24_PRIVATE) + psf->sf.channels *
354 (PAF24_BLOCK_SIZE + PAF24_SAMPLES_PER_BLOCK * sizeof (int)) ;
357 ** Not exatly sure why this needs to be here but the tests
362 if (! (psf->codec_data = calloc (1, paf24size)))
363 return SFE_MALLOC_FAILED ;
365 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
367 ppaf24->channels = psf->sf.channels ;
368 ppaf24->samples = ppaf24->data ;
369 ppaf24->block = (unsigned char*) (ppaf24->data + PAF24_SAMPLES_PER_BLOCK * ppaf24->channels) ;
371 ppaf24->blocksize = PAF24_BLOCK_SIZE * ppaf24->channels ;
372 ppaf24->samplesperblock = PAF24_SAMPLES_PER_BLOCK ;
374 if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR)
375 { paf24_read_block (psf, ppaf24) ; /* Read first block. */
377 psf->read_short = paf24_read_s ;
378 psf->read_int = paf24_read_i ;
379 psf->read_float = paf24_read_f ;
380 psf->read_double = paf24_read_d ;
383 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
384 { psf->write_short = paf24_write_s ;
385 psf->write_int = paf24_write_i ;
386 psf->write_float = paf24_write_f ;
387 psf->write_double = paf24_write_d ;
390 psf->seek = paf24_seek ;
391 psf->container_close = paf24_close ;
393 psf->filelength = psf_get_filelen (psf) ;
394 psf->datalength = psf->filelength - psf->dataoffset ;
396 if (psf->datalength % PAF24_BLOCK_SIZE)
397 { if (psf->file.mode == SFM_READ)
398 psf_log_printf (psf, "*** Warning : file seems to be truncated.\n") ;
399 ppaf24->max_blocks = psf->datalength / ppaf24->blocksize + 1 ;
402 ppaf24->max_blocks = psf->datalength / ppaf24->blocksize ;
404 ppaf24->read_block = 0 ;
405 if (psf->file.mode == SFM_RDWR)
406 ppaf24->write_block = ppaf24->max_blocks ;
408 ppaf24->write_block = 0 ;
410 psf->sf.frames = ppaf24->samplesperblock * ppaf24->max_blocks ;
411 ppaf24->sample_count = psf->sf.frames ;
417 paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset)
418 { PAF24_PRIVATE *ppaf24 ;
419 int newblock, newsample ;
421 if (psf->codec_data == NULL)
422 { psf->error = SFE_INTERNAL ;
423 return PSF_SEEK_ERROR ;
426 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
428 if (mode == SFM_READ && ppaf24->write_count > 0)
429 paf24_write_block (psf, ppaf24) ;
431 newblock = offset / ppaf24->samplesperblock ;
432 newsample = offset % ppaf24->samplesperblock ;
436 if (psf->last_op == SFM_WRITE && ppaf24->write_count)
437 paf24_write_block (psf, ppaf24) ;
439 psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
440 ppaf24->read_block = newblock ;
441 paf24_read_block (psf, ppaf24) ;
442 ppaf24->read_count = newsample ;
446 if (offset > ppaf24->sample_count)
447 { psf->error = SFE_BAD_SEEK ;
448 return PSF_SEEK_ERROR ;
451 if (psf->last_op == SFM_WRITE && ppaf24->write_count)
452 paf24_write_block (psf, ppaf24) ;
454 psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
455 ppaf24->write_block = newblock ;
456 paf24_read_block (psf, ppaf24) ;
457 ppaf24->write_count = newsample ;
461 psf->error = SFE_BAD_SEEK ;
462 return PSF_SEEK_ERROR ;
465 return newblock * ppaf24->samplesperblock + newsample ;
469 paf24_close (SF_PRIVATE *psf)
470 { PAF24_PRIVATE *ppaf24 ;
472 if (psf->codec_data == NULL)
475 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
477 if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
478 { if (ppaf24->write_count > 0)
479 paf24_write_block (psf, ppaf24) ;
485 /*---------------------------------------------------------------------------
488 paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
490 unsigned char *cptr ;
492 ppaf24->read_block ++ ;
493 ppaf24->read_count = 0 ;
495 if (ppaf24->read_block * ppaf24->samplesperblock > ppaf24->sample_count)
496 { memset (ppaf24->samples, 0, ppaf24->samplesperblock * ppaf24->channels) ;
500 /* Read the block. */
501 if ((k = psf_fread (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
502 psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, ppaf24->blocksize) ;
505 if (CPU_IS_LITTLE_ENDIAN)
506 { /* Do endian swapping if necessary. */
507 if (psf->endian == SF_ENDIAN_BIG)
508 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
511 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
512 { channel = k % ppaf24->channels ;
513 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
514 ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
518 { /* Do endian swapping if necessary. */
519 if (psf->endian == SF_ENDIAN_BIG)
520 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
523 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
524 { channel = k % ppaf24->channels ;
525 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
526 ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
531 } /* paf24_read_block */
534 paf24_read (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, int *ptr, int len)
535 { int count, total = 0 ;
538 { if (ppaf24->read_block * ppaf24->samplesperblock >= ppaf24->sample_count)
539 { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ;
543 if (ppaf24->read_count >= ppaf24->samplesperblock)
544 paf24_read_block (psf, ppaf24) ;
546 count = (ppaf24->samplesperblock - ppaf24->read_count) * ppaf24->channels ;
547 count = (len - total > count) ? count : len - total ;
549 memcpy (&(ptr [total]), &(ppaf24->samples [ppaf24->read_count * ppaf24->channels]), count * sizeof (int)) ;
551 ppaf24->read_count += count / ppaf24->channels ;
558 paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
559 { PAF24_PRIVATE *ppaf24 ;
561 int k, bufferlen, readcount, count ;
562 sf_count_t total = 0 ;
564 if (psf->codec_data == NULL)
566 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
569 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
571 { readcount = (len >= bufferlen) ? bufferlen : len ;
572 count = paf24_read (psf, ppaf24, iptr, readcount) ;
573 for (k = 0 ; k < readcount ; k++)
574 ptr [total + k] = iptr [k] >> 16 ;
582 paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
583 { PAF24_PRIVATE *ppaf24 ;
586 if (psf->codec_data == NULL)
588 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
590 total = paf24_read (psf, ppaf24, ptr, len) ;
596 paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
597 { PAF24_PRIVATE *ppaf24 ;
599 int k, bufferlen, readcount, count ;
600 sf_count_t total = 0 ;
603 if (psf->codec_data == NULL)
605 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
607 normfact = (psf->norm_float == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
610 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
612 { readcount = (len >= bufferlen) ? bufferlen : len ;
613 count = paf24_read (psf, ppaf24, iptr, readcount) ;
614 for (k = 0 ; k < readcount ; k++)
615 ptr [total + k] = normfact * iptr [k] ;
623 paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
624 { PAF24_PRIVATE *ppaf24 ;
626 int k, bufferlen, readcount, count ;
627 sf_count_t total = 0 ;
630 if (psf->codec_data == NULL)
632 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
634 normfact = (psf->norm_double == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
637 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
639 { readcount = (len >= bufferlen) ? bufferlen : len ;
640 count = paf24_read (psf, ppaf24, iptr, readcount) ;
641 for (k = 0 ; k < readcount ; k++)
642 ptr [total + k] = normfact * iptr [k] ;
649 /*---------------------------------------------------------------------------
653 paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
654 { int k, nextsample, channel ;
655 unsigned char *cptr ;
657 /* First pack block. */
659 if (CPU_IS_LITTLE_ENDIAN)
660 { for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
661 { channel = k % ppaf24->channels ;
662 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
663 nextsample = ppaf24->samples [k] >> 8 ;
664 cptr [0] = nextsample ;
665 cptr [1] = nextsample >> 8 ;
666 cptr [2] = nextsample >> 16 ;
669 /* Do endian swapping if necessary. */
670 if (psf->endian == SF_ENDIAN_BIG)
671 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
673 else if (CPU_IS_BIG_ENDIAN)
674 { /* This is correct. */
675 for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
676 { channel = k % ppaf24->channels ;
677 cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
678 nextsample = ppaf24->samples [k] >> 8 ;
679 cptr [0] = nextsample ;
680 cptr [1] = nextsample >> 8 ;
681 cptr [2] = nextsample >> 16 ;
683 if (psf->endian == SF_ENDIAN_BIG)
684 endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
687 /* Write block to disk. */
688 if ((k = psf_fwrite (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
689 psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, ppaf24->blocksize) ;
691 if (ppaf24->sample_count < ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count)
692 ppaf24->sample_count = ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count ;
694 if (ppaf24->write_count == ppaf24->samplesperblock)
695 { ppaf24->write_block ++ ;
696 ppaf24->write_count = 0 ;
700 } /* paf24_write_block */
703 paf24_write (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, const int *ptr, int len)
704 { int count, total = 0 ;
707 { count = (ppaf24->samplesperblock - ppaf24->write_count) * ppaf24->channels ;
709 if (count > len - total)
710 count = len - total ;
712 memcpy (&(ppaf24->samples [ppaf24->write_count * ppaf24->channels]), &(ptr [total]), count * sizeof (int)) ;
714 ppaf24->write_count += count / ppaf24->channels ;
716 if (ppaf24->write_count >= ppaf24->samplesperblock)
717 paf24_write_block (psf, ppaf24) ;
724 paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
725 { PAF24_PRIVATE *ppaf24 ;
727 int k, bufferlen, writecount = 0, count ;
728 sf_count_t total = 0 ;
730 if (psf->codec_data == NULL)
732 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
735 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
737 { writecount = (len >= bufferlen) ? bufferlen : len ;
738 for (k = 0 ; k < writecount ; k++)
739 iptr [k] = ptr [total + k] << 16 ;
740 count = paf24_write (psf, ppaf24, iptr, writecount) ;
743 if (count != writecount)
747 } /* paf24_write_s */
750 paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
751 { PAF24_PRIVATE *ppaf24 ;
752 int writecount, count ;
753 sf_count_t total = 0 ;
755 if (psf->codec_data == NULL)
757 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
760 { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ;
762 count = paf24_write (psf, ppaf24, ptr, writecount) ;
766 if (count != writecount)
771 } /* paf24_write_i */
774 paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
775 { PAF24_PRIVATE *ppaf24 ;
777 int k, bufferlen, writecount = 0, count ;
778 sf_count_t total = 0 ;
781 if (psf->codec_data == NULL)
783 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
785 normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
788 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
790 { writecount = (len >= bufferlen) ? bufferlen : len ;
791 for (k = 0 ; k < writecount ; k++)
792 iptr [k] = lrintf (normfact * ptr [total + k]) ;
793 count = paf24_write (psf, ppaf24, iptr, writecount) ;
796 if (count != writecount)
801 } /* paf24_write_f */
804 paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
805 { PAF24_PRIVATE *ppaf24 ;
807 int k, bufferlen, writecount = 0, count ;
808 sf_count_t total = 0 ;
811 if (psf->codec_data == NULL)
813 ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
815 normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
818 bufferlen = ARRAY_LEN (psf->u.ibuf) ;
820 { writecount = (len >= bufferlen) ? bufferlen : len ;
821 for (k = 0 ; k < writecount ; k++)
822 iptr [k] = lrint (normfact * ptr [total+k]) ;
823 count = paf24_write (psf, ppaf24, iptr, writecount) ;
826 if (count != writecount)
831 } /* paf24_write_d */