+++ /dev/null
-/*
-** Copyright (C) 1999-2011 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 <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <ctype.h>
-#include <math.h>
-
-#include "sndfile.h"
-#include "sfendian.h"
-#include "common.h"
-
-/*------------------------------------------------------------------------------
-** Macros to handle big/little endian issues.
-*/
-
-#define FAP_MARKER (MAKE_MARKER ('f', 'a', 'p', ' '))
-#define PAF_MARKER (MAKE_MARKER (' ', 'p', 'a', 'f'))
-
-/*------------------------------------------------------------------------------
-** Other defines.
-*/
-
-#define PAF_HEADER_LENGTH 2048
-
-#define PAF24_SAMPLES_PER_BLOCK 10
-#define PAF24_BLOCK_SIZE 32
-
-/*------------------------------------------------------------------------------
-** Typedefs.
-*/
-
-typedef struct
-{ int version ;
- int endianness ;
- int samplerate ;
- int format ;
- int channels ;
- int source ;
-} PAF_FMT ;
-
-typedef struct
-{ int max_blocks, channels, samplesperblock, blocksize ;
- int read_block, write_block, read_count, write_count ;
- sf_count_t sample_count ;
- int *samples ;
- unsigned char *block ;
-#if HAVE_FLEXIBLE_ARRAY
- int data [] ; /* ISO C99 struct flexible array. */
-#else
- int data [1] ; /* This is a hack and may not work. */
-#endif
-} PAF24_PRIVATE ;
-
-/*------------------------------------------------------------------------------
-** Private static functions.
-*/
-
-static int paf24_init (SF_PRIVATE *psf) ;
-
-static int paf_read_header (SF_PRIVATE *psf) ;
-static int paf_write_header (SF_PRIVATE *psf, int calc_length) ;
-
-static sf_count_t paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
-static sf_count_t paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
-static sf_count_t paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
-static sf_count_t paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
-
-static sf_count_t paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
-static sf_count_t paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
-static sf_count_t paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
-static sf_count_t paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
-
-static sf_count_t paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
-
-enum
-{ PAF_PCM_16 = 0,
- PAF_PCM_24 = 1,
- PAF_PCM_S8 = 2
-} ;
-
-/*------------------------------------------------------------------------------
-** Public function.
-*/
-
-int
-paf_open (SF_PRIVATE *psf)
-{ int subformat, error, endian ;
-
- psf->dataoffset = PAF_HEADER_LENGTH ;
-
- if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->filelength > 0))
- { if ((error = paf_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_PAF)
- return SFE_BAD_OPEN_FORMAT ;
-
- endian = SF_ENDIAN (psf->sf.format) ;
-
- /* PAF is by default big endian. */
- psf->endian = SF_ENDIAN_BIG ;
-
- if (endian == SF_ENDIAN_LITTLE || (CPU_IS_LITTLE_ENDIAN && (endian == SF_ENDIAN_CPU)))
- psf->endian = SF_ENDIAN_LITTLE ;
-
- if ((error = paf_write_header (psf, SF_FALSE)))
- return error ;
-
- psf->write_header = paf_write_header ;
- } ;
-
- switch (subformat)
- { case SF_FORMAT_PCM_S8 :
- psf->bytewidth = 1 ;
- error = pcm_init (psf) ;
- break ;
-
- case SF_FORMAT_PCM_16 :
- psf->bytewidth = 2 ;
- error = pcm_init (psf) ;
- break ;
-
- case SF_FORMAT_PCM_24 :
- /* No bytewidth because of whacky 24 bit encoding. */
- error = paf24_init (psf) ;
- break ;
-
- default : return SFE_PAF_UNKNOWN_FORMAT ;
- } ;
-
- return error ;
-} /* paf_open */
-
-/*------------------------------------------------------------------------------
-*/
-
-static int
-paf_read_header (SF_PRIVATE *psf)
-{ PAF_FMT paf_fmt ;
- int marker ;
-
- if (psf->filelength < PAF_HEADER_LENGTH)
- return SFE_PAF_SHORT_HEADER ;
-
- memset (&paf_fmt, 0, sizeof (paf_fmt)) ;
- psf_binheader_readf (psf, "pm", 0, &marker) ;
-
- psf_log_printf (psf, "Signature : '%M'\n", marker) ;
-
- if (marker == PAF_MARKER)
- { psf_binheader_readf (psf, "E444444", &(paf_fmt.version), &(paf_fmt.endianness),
- &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
- }
- else if (marker == FAP_MARKER)
- { psf_binheader_readf (psf, "e444444", &(paf_fmt.version), &(paf_fmt.endianness),
- &(paf_fmt.samplerate), &(paf_fmt.format), &(paf_fmt.channels), &(paf_fmt.source)) ;
- }
- else
- return SFE_PAF_NO_MARKER ;
-
- psf_log_printf (psf, "Version : %d\n", paf_fmt.version) ;
-
- if (paf_fmt.version != 0)
- { psf_log_printf (psf, "*** Bad version number. should be zero.\n") ;
- return SFE_PAF_VERSION ;
- } ;
-
- psf_log_printf (psf, "Sample Rate : %d\n", paf_fmt.samplerate) ;
- psf_log_printf (psf, "Channels : %d\n", paf_fmt.channels) ;
-
- psf_log_printf (psf, "Endianness : %d => ", paf_fmt.endianness) ;
- if (paf_fmt.endianness)
- { psf_log_printf (psf, "Little\n", paf_fmt.endianness) ;
- psf->endian = SF_ENDIAN_LITTLE ;
- }
- else
- { psf_log_printf (psf, "Big\n", paf_fmt.endianness) ;
- psf->endian = SF_ENDIAN_BIG ;
- } ;
-
- if (paf_fmt.channels > SF_MAX_CHANNELS)
- return SFE_PAF_BAD_CHANNELS ;
-
- psf->datalength = psf->filelength - psf->dataoffset ;
-
- psf_binheader_readf (psf, "p", (int) psf->dataoffset) ;
-
- psf->sf.samplerate = paf_fmt.samplerate ;
- psf->sf.channels = paf_fmt.channels ;
-
- /* Only fill in type major. */
- psf->sf.format = SF_FORMAT_PAF ;
-
- psf_log_printf (psf, "Format : %d => ", paf_fmt.format) ;
-
- /* PAF is by default big endian. */
- psf->sf.format |= paf_fmt.endianness ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
-
- switch (paf_fmt.format)
- { case PAF_PCM_S8 :
- psf_log_printf (psf, "8 bit linear PCM\n") ;
- psf->bytewidth = 1 ;
-
- psf->sf.format |= SF_FORMAT_PCM_S8 ;
-
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
- psf->sf.frames = psf->datalength / psf->blockwidth ;
- break ;
-
- case PAF_PCM_16 :
- psf_log_printf (psf, "16 bit linear PCM\n") ;
- psf->bytewidth = 2 ;
-
- psf->sf.format |= SF_FORMAT_PCM_16 ;
-
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
- psf->sf.frames = psf->datalength / psf->blockwidth ;
- break ;
-
- case PAF_PCM_24 :
- psf_log_printf (psf, "24 bit linear PCM\n") ;
- psf->bytewidth = 3 ;
-
- psf->sf.format |= SF_FORMAT_PCM_24 ;
-
- psf->blockwidth = 0 ;
- psf->sf.frames = PAF24_SAMPLES_PER_BLOCK * psf->datalength /
- (PAF24_BLOCK_SIZE * psf->sf.channels) ;
- break ;
-
- default : psf_log_printf (psf, "Unknown\n") ;
- return SFE_PAF_UNKNOWN_FORMAT ;
- break ;
- } ;
-
- psf_log_printf (psf, "Source : %d => ", paf_fmt.source) ;
-
- switch (paf_fmt.source)
- { case 1 : psf_log_printf (psf, "Analog Recording\n") ;
- break ;
- case 2 : psf_log_printf (psf, "Digital Transfer\n") ;
- break ;
- case 3 : psf_log_printf (psf, "Multi-track Mixdown\n") ;
- break ;
- case 5 : psf_log_printf (psf, "Audio Resulting From DSP Processing\n") ;
- break ;
- default : psf_log_printf (psf, "Unknown\n") ;
- break ;
- } ;
-
- return 0 ;
-} /* paf_read_header */
-
-static int
-paf_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
-{ int paf_format ;
-
- /* PAF header already written so no need to re-write. */
- if (psf_ftell (psf) >= PAF_HEADER_LENGTH)
- return 0 ;
-
- psf->dataoffset = PAF_HEADER_LENGTH ;
-
- switch (SF_CODEC (psf->sf.format))
- { case SF_FORMAT_PCM_S8 :
- paf_format = PAF_PCM_S8 ;
- break ;
-
- case SF_FORMAT_PCM_16 :
- paf_format = PAF_PCM_16 ;
- break ;
-
- case SF_FORMAT_PCM_24 :
- paf_format = PAF_PCM_24 ;
- break ;
-
- default : return SFE_PAF_UNKNOWN_FORMAT ;
- } ;
-
- /* Reset the current header length to zero. */
- psf->header [0] = 0 ;
- psf->headindex = 0 ;
-
- if (psf->endian == SF_ENDIAN_BIG)
- { /* Marker, version, endianness, samplerate */
- psf_binheader_writef (psf, "Em444", PAF_MARKER, 0, 0, psf->sf.samplerate) ;
- /* format, channels, source */
- psf_binheader_writef (psf, "E444", paf_format, psf->sf.channels, 0) ;
- }
- else if (psf->endian == SF_ENDIAN_LITTLE)
- { /* Marker, version, endianness, samplerate */
- psf_binheader_writef (psf, "em444", FAP_MARKER, 0, 1, psf->sf.samplerate) ;
- /* format, channels, source */
- psf_binheader_writef (psf, "e444", paf_format, psf->sf.channels, 0) ;
- } ;
-
- /* Zero fill to dataoffset. */
- psf_binheader_writef (psf, "z", (size_t) (psf->dataoffset - psf->headindex)) ;
-
- psf_fwrite (psf->header, psf->headindex, 1, psf) ;
-
- return psf->error ;
-} /* paf_write_header */
-
-/*===============================================================================
-** 24 bit PAF files have a really weird encoding.
-** For a mono file, 10 samples (each being 3 bytes) are packed into a 32 byte
-** block. The 8 ints in this 32 byte block are then endian swapped (as ints)
-** if necessary before being written to disk.
-** For a stereo file, blocks of 10 samples from the same channel are encoded
-** into 32 bytes as for the mono case. The 32 byte blocks are then interleaved
-** on disk.
-** Reading has to reverse the above process :-).
-** Weird!!!
-**
-** The code below attempts to gain efficiency while maintaining readability.
-*/
-
-static int paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
-static int paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24) ;
-static int paf24_close (SF_PRIVATE *psf) ;
-
-
-static int
-paf24_init (SF_PRIVATE *psf)
-{ PAF24_PRIVATE *ppaf24 ;
- int paf24size ;
-
- paf24size = sizeof (PAF24_PRIVATE) + psf->sf.channels *
- (PAF24_BLOCK_SIZE + PAF24_SAMPLES_PER_BLOCK * sizeof (int)) ;
-
- /*
- ** Not exatly sure why this needs to be here but the tests
- ** fail without it.
- */
- psf->last_op = 0 ;
-
- if (! (psf->codec_data = calloc (1, paf24size)))
- return SFE_MALLOC_FAILED ;
-
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- ppaf24->channels = psf->sf.channels ;
- ppaf24->samples = ppaf24->data ;
- ppaf24->block = (unsigned char*) (ppaf24->data + PAF24_SAMPLES_PER_BLOCK * ppaf24->channels) ;
-
- ppaf24->blocksize = PAF24_BLOCK_SIZE * ppaf24->channels ;
- ppaf24->samplesperblock = PAF24_SAMPLES_PER_BLOCK ;
-
- if (psf->file.mode == SFM_READ || psf->file.mode == SFM_RDWR)
- { paf24_read_block (psf, ppaf24) ; /* Read first block. */
-
- psf->read_short = paf24_read_s ;
- psf->read_int = paf24_read_i ;
- psf->read_float = paf24_read_f ;
- psf->read_double = paf24_read_d ;
- } ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { psf->write_short = paf24_write_s ;
- psf->write_int = paf24_write_i ;
- psf->write_float = paf24_write_f ;
- psf->write_double = paf24_write_d ;
- } ;
-
- psf->seek = paf24_seek ;
- psf->container_close = paf24_close ;
-
- psf->filelength = psf_get_filelen (psf) ;
- psf->datalength = psf->filelength - psf->dataoffset ;
-
- if (psf->datalength % PAF24_BLOCK_SIZE)
- { if (psf->file.mode == SFM_READ)
- psf_log_printf (psf, "*** Warning : file seems to be truncated.\n") ;
- ppaf24->max_blocks = psf->datalength / ppaf24->blocksize + 1 ;
- }
- else
- ppaf24->max_blocks = psf->datalength / ppaf24->blocksize ;
-
- ppaf24->read_block = 0 ;
- if (psf->file.mode == SFM_RDWR)
- ppaf24->write_block = ppaf24->max_blocks ;
- else
- ppaf24->write_block = 0 ;
-
- psf->sf.frames = ppaf24->samplesperblock * ppaf24->max_blocks ;
- ppaf24->sample_count = psf->sf.frames ;
-
- return 0 ;
-} /* paf24_init */
-
-static sf_count_t
-paf24_seek (SF_PRIVATE *psf, int mode, sf_count_t offset)
-{ PAF24_PRIVATE *ppaf24 ;
- int newblock, newsample ;
-
- if (psf->codec_data == NULL)
- { psf->error = SFE_INTERNAL ;
- return PSF_SEEK_ERROR ;
- } ;
-
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- if (mode == SFM_READ && ppaf24->write_count > 0)
- paf24_write_block (psf, ppaf24) ;
-
- newblock = offset / ppaf24->samplesperblock ;
- newsample = offset % ppaf24->samplesperblock ;
-
- switch (mode)
- { case SFM_READ :
- if (psf->last_op == SFM_WRITE && ppaf24->write_count)
- paf24_write_block (psf, ppaf24) ;
-
- psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
- ppaf24->read_block = newblock ;
- paf24_read_block (psf, ppaf24) ;
- ppaf24->read_count = newsample ;
- break ;
-
- case SFM_WRITE :
- if (offset > ppaf24->sample_count)
- { psf->error = SFE_BAD_SEEK ;
- return PSF_SEEK_ERROR ;
- } ;
-
- if (psf->last_op == SFM_WRITE && ppaf24->write_count)
- paf24_write_block (psf, ppaf24) ;
-
- psf_fseek (psf, psf->dataoffset + newblock * ppaf24->blocksize, SEEK_SET) ;
- ppaf24->write_block = newblock ;
- paf24_read_block (psf, ppaf24) ;
- ppaf24->write_count = newsample ;
- break ;
-
- default :
- psf->error = SFE_BAD_SEEK ;
- return PSF_SEEK_ERROR ;
- } ;
-
- return newblock * ppaf24->samplesperblock + newsample ;
-} /* paf24_seek */
-
-static int
-paf24_close (SF_PRIVATE *psf)
-{ PAF24_PRIVATE *ppaf24 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
-
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR)
- { if (ppaf24->write_count > 0)
- paf24_write_block (psf, ppaf24) ;
- } ;
-
- return 0 ;
-} /* paf24_close */
-
-/*---------------------------------------------------------------------------
-*/
-static int
-paf24_read_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
-{ int k, channel ;
- unsigned char *cptr ;
-
- ppaf24->read_block ++ ;
- ppaf24->read_count = 0 ;
-
- if (ppaf24->read_block * ppaf24->samplesperblock > ppaf24->sample_count)
- { memset (ppaf24->samples, 0, ppaf24->samplesperblock * ppaf24->channels) ;
- return 1 ;
- } ;
-
- /* Read the block. */
- if ((k = psf_fread (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
- psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, ppaf24->blocksize) ;
-
-
- if (CPU_IS_LITTLE_ENDIAN)
- { /* Do endian swapping if necessary. */
- if (psf->endian == SF_ENDIAN_BIG)
- endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
-
- /* Unpack block. */
- for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
- { channel = k % ppaf24->channels ;
- cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
- ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
- } ;
- }
- else
- { /* Do endian swapping if necessary. */
- if (psf->endian == SF_ENDIAN_BIG)
- endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
-
- /* Unpack block. */
- for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
- { channel = k % ppaf24->channels ;
- cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
- ppaf24->samples [k] = (cptr [0] << 8) | (cptr [1] << 16) | (cptr [2] << 24) ;
- } ;
- } ;
-
- return 1 ;
-} /* paf24_read_block */
-
-static int
-paf24_read (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, int *ptr, int len)
-{ int count, total = 0 ;
-
- while (total < len)
- { if (ppaf24->read_block * ppaf24->samplesperblock >= ppaf24->sample_count)
- { memset (&(ptr [total]), 0, (len - total) * sizeof (int)) ;
- return total ;
- } ;
-
- if (ppaf24->read_count >= ppaf24->samplesperblock)
- paf24_read_block (psf, ppaf24) ;
-
- count = (ppaf24->samplesperblock - ppaf24->read_count) * ppaf24->channels ;
- count = (len - total > count) ? count : len - total ;
-
- memcpy (&(ptr [total]), &(ppaf24->samples [ppaf24->read_count * ppaf24->channels]), count * sizeof (int)) ;
- total += count ;
- ppaf24->read_count += count / ppaf24->channels ;
- } ;
-
- return total ;
-} /* paf24_read */
-
-static sf_count_t
-paf24_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : len ;
- count = paf24_read (psf, ppaf24, iptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = iptr [k] >> 16 ;
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* paf24_read_s */
-
-static sf_count_t
-paf24_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int total ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- total = paf24_read (psf, ppaf24, ptr, len) ;
-
- return total ;
-} /* paf24_read_i */
-
-static sf_count_t
-paf24_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- normfact = (psf->norm_float == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : len ;
- count = paf24_read (psf, ppaf24, iptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * iptr [k] ;
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* paf24_read_f */
-
-static sf_count_t
-paf24_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, readcount, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- normfact = (psf->norm_double == SF_TRUE) ? (1.0 / 0x80000000) : (1.0 / 0x100) ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { readcount = (len >= bufferlen) ? bufferlen : len ;
- count = paf24_read (psf, ppaf24, iptr, readcount) ;
- for (k = 0 ; k < readcount ; k++)
- ptr [total + k] = normfact * iptr [k] ;
- total += count ;
- len -= readcount ;
- } ;
- return total ;
-} /* paf24_read_d */
-
-/*---------------------------------------------------------------------------
-*/
-
-static int
-paf24_write_block (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24)
-{ int k, nextsample, channel ;
- unsigned char *cptr ;
-
- /* First pack block. */
-
- if (CPU_IS_LITTLE_ENDIAN)
- { for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
- { channel = k % ppaf24->channels ;
- cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
- nextsample = ppaf24->samples [k] >> 8 ;
- cptr [0] = nextsample ;
- cptr [1] = nextsample >> 8 ;
- cptr [2] = nextsample >> 16 ;
- } ;
-
- /* Do endian swapping if necessary. */
- if (psf->endian == SF_ENDIAN_BIG)
- endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
- }
- else if (CPU_IS_BIG_ENDIAN)
- { /* This is correct. */
- for (k = 0 ; k < PAF24_SAMPLES_PER_BLOCK * ppaf24->channels ; k++)
- { channel = k % ppaf24->channels ;
- cptr = ppaf24->block + PAF24_BLOCK_SIZE * channel + 3 * (k / ppaf24->channels) ;
- nextsample = ppaf24->samples [k] >> 8 ;
- cptr [0] = nextsample ;
- cptr [1] = nextsample >> 8 ;
- cptr [2] = nextsample >> 16 ;
- } ;
- if (psf->endian == SF_ENDIAN_BIG)
- endswap_int_array (ppaf24->data, 8 * ppaf24->channels) ;
- } ;
-
- /* Write block to disk. */
- if ((k = psf_fwrite (ppaf24->block, 1, ppaf24->blocksize, psf)) != ppaf24->blocksize)
- psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, ppaf24->blocksize) ;
-
- if (ppaf24->sample_count < ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count)
- ppaf24->sample_count = ppaf24->write_block * ppaf24->samplesperblock + ppaf24->write_count ;
-
- if (ppaf24->write_count == ppaf24->samplesperblock)
- { ppaf24->write_block ++ ;
- ppaf24->write_count = 0 ;
- } ;
-
- return 1 ;
-} /* paf24_write_block */
-
-static int
-paf24_write (SF_PRIVATE *psf, PAF24_PRIVATE *ppaf24, const int *ptr, int len)
-{ int count, total = 0 ;
-
- while (total < len)
- { count = (ppaf24->samplesperblock - ppaf24->write_count) * ppaf24->channels ;
-
- if (count > len - total)
- count = len - total ;
-
- memcpy (&(ppaf24->samples [ppaf24->write_count * ppaf24->channels]), &(ptr [total]), count * sizeof (int)) ;
- total += count ;
- ppaf24->write_count += count / ppaf24->channels ;
-
- if (ppaf24->write_count >= ppaf24->samplesperblock)
- paf24_write_block (psf, ppaf24) ;
- } ;
-
- return total ;
-} /* paf24_write */
-
-static sf_count_t
-paf24_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : len ;
- for (k = 0 ; k < writecount ; k++)
- iptr [k] = ptr [total + k] << 16 ;
- count = paf24_write (psf, ppaf24, iptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
- return total ;
-} /* paf24_write_s */
-
-static sf_count_t
-paf24_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int writecount, count ;
- sf_count_t total = 0 ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- while (len > 0)
- { writecount = (len > 0x10000000) ? 0x10000000 : (int) len ;
-
- count = paf24_write (psf, ppaf24, ptr, writecount) ;
-
- total += count ;
- len -= count ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* paf24_write_i */
-
-static sf_count_t
-paf24_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
- float normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : len ;
- for (k = 0 ; k < writecount ; k++)
- iptr [k] = lrintf (normfact * ptr [total + k]) ;
- count = paf24_write (psf, ppaf24, iptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* paf24_write_f */
-
-static sf_count_t
-paf24_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
-{ PAF24_PRIVATE *ppaf24 ;
- int *iptr ;
- int k, bufferlen, writecount = 0, count ;
- sf_count_t total = 0 ;
- double normfact ;
-
- if (psf->codec_data == NULL)
- return 0 ;
- ppaf24 = (PAF24_PRIVATE*) psf->codec_data ;
-
- normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x7FFFFFFF) : (1.0 / 0x100) ;
-
- iptr = psf->u.ibuf ;
- bufferlen = ARRAY_LEN (psf->u.ibuf) ;
- while (len > 0)
- { writecount = (len >= bufferlen) ? bufferlen : len ;
- for (k = 0 ; k < writecount ; k++)
- iptr [k] = lrint (normfact * ptr [total+k]) ;
- count = paf24_write (psf, ppaf24, iptr, writecount) ;
- total += count ;
- len -= writecount ;
- if (count != writecount)
- break ;
- } ;
-
- return total ;
-} /* paf24_write_d */
-
projects / Faustine.git / blobdiff