sd2.c
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上传日期:2022-01-05
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文件大小:19k
- /*
- ** Copyright (C) 2001-2009 Erik de Castro Lopo <erikd@mega-nerd.com>
- ** Copyright (C) 2004 Paavo Jumppanen
- **
- ** 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.
- */
- /*
- ** The sd2 support implemented in this file was partially sponsored
- ** (financially) by Paavo Jumppanen.
- */
- /*
- ** Documentation on the Mac resource fork was obtained here :
- ** http://developer.apple.com/documentation/mac/MoreToolbox/MoreToolbox-99.html
- */
- #include "sfconfig.h"
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
- #include "sndfile.h"
- #include "sfendian.h"
- #include "common.h"
- /*------------------------------------------------------------------------------
- * Markers.
- */
- #define Sd2f_MARKER MAKE_MARKER ('S', 'd', '2', 'f')
- #define Sd2a_MARKER MAKE_MARKER ('S', 'd', '2', 'a')
- #define ALCH_MARKER MAKE_MARKER ('A', 'L', 'C', 'H')
- #define lsf1_MARKER MAKE_MARKER ('l', 's', 'f', '1')
- #define STR_MARKER MAKE_MARKER ('S', 'T', 'R', ' ')
- #define sdML_MARKER MAKE_MARKER ('s', 'd', 'M', 'L')
- enum
- { RSRC_STR = 111,
- RSRC_BIN
- } ;
- typedef struct
- { unsigned char * rsrc_data ;
- int rsrc_len ;
- int need_to_free_rsrc_data ;
- int data_offset, data_length ;
- int map_offset, map_length ;
- int type_count, type_offset ;
- int item_offset ;
- int str_index, str_count ;
- int string_offset ;
- /* All the above just to get these three. */
- int sample_size, sample_rate, channels ;
- } SD2_RSRC ;
- typedef struct
- { int type ;
- int id ;
- char name [32] ;
- char value [32] ;
- int value_len ;
- } STR_RSRC ;
- /*------------------------------------------------------------------------------
- * Private static functions.
- */
- static int sd2_close (SF_PRIVATE *psf) ;
- static int sd2_parse_rsrc_fork (SF_PRIVATE *psf) ;
- static int parse_str_rsrc (SF_PRIVATE *psf, SD2_RSRC * rsrc) ;
- static int sd2_write_rsrc_fork (SF_PRIVATE *psf, int calc_length) ;
- /*------------------------------------------------------------------------------
- ** Public functions.
- */
- int
- sd2_open (SF_PRIVATE *psf)
- { int subformat, error = 0, valid ;
- /* SD2 is always big endian. */
- psf->endian = SF_ENDIAN_BIG ;
- if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR && psf->rsrclength > 0))
- { psf_use_rsrc (psf, SF_TRUE) ;
- valid = psf_file_valid (psf) ;
- psf_use_rsrc (psf, SF_FALSE) ;
- if (! valid)
- { psf_log_printf (psf, "sd2_open : psf->rsrc.filedes < 0n") ;
- return SFE_SD2_BAD_RSRC ;
- } ;
- error = sd2_parse_rsrc_fork (psf) ;
- if (error)
- goto error_cleanup ;
- } ;
- if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_SD2)
- { error = SFE_BAD_OPEN_FORMAT ;
- goto error_cleanup ;
- } ;
- subformat = SF_CODEC (psf->sf.format) ;
- psf->dataoffset = 0 ;
- /* Only open and write the resource in RDWR mode is its current length is zero. */
- if (psf->file.mode == SFM_WRITE || (psf->file.mode == SFM_RDWR && psf->rsrclength == 0))
- { psf->rsrc.mode = psf->file.mode ;
- psf_open_rsrc (psf) ;
- error = sd2_write_rsrc_fork (psf, SF_FALSE) ;
- if (error)
- goto error_cleanup ;
- /* Not needed. */
- psf->write_header = NULL ;
- } ;
- psf->container_close = sd2_close ;
- psf->blockwidth = psf->bytewidth * psf->sf.channels ;
- switch (subformat)
- { case SF_FORMAT_PCM_S8 : /* 8-bit linear PCM. */
- case SF_FORMAT_PCM_16 : /* 16-bit linear PCM. */
- case SF_FORMAT_PCM_24 : /* 24-bit linear PCM */
- error = pcm_init (psf) ;
- break ;
- default :
- error = SFE_UNIMPLEMENTED ;
- break ;
- } ;
- psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
- error_cleanup:
- /* Close the resource fork regardless. We won't need it again. */
- psf_close_rsrc (psf) ;
- return error ;
- } /* sd2_open */
- /*------------------------------------------------------------------------------
- */
- static int
- sd2_close (SF_PRIVATE *psf)
- {
- if (psf->file.mode == SFM_WRITE)
- { /* Now we know for certain the audio_length of the file we can re-write
- ** correct values for the FORM, 8SVX and BODY chunks.
- */
- } ;
- return 0 ;
- } /* sd2_close */
- /*------------------------------------------------------------------------------
- */
- static inline void
- write_char (unsigned char * data, int offset, char value)
- { data [offset] = value ;
- } /* write_char */
- static inline void
- write_short (unsigned char * data, int offset, short value)
- { data [offset] = value >> 8 ;
- data [offset + 1] = value ;
- } /* write_char */
- static inline void
- write_int (unsigned char * data, int offset, int value)
- { data [offset] = value >> 24 ;
- data [offset + 1] = value >> 16 ;
- data [offset + 2] = value >> 8 ;
- data [offset + 3] = value ;
- } /* write_int */
- static inline void
- write_marker (unsigned char * data, int offset, int value)
- {
- if (CPU_IS_BIG_ENDIAN)
- { data [offset] = value >> 24 ;
- data [offset + 1] = value >> 16 ;
- data [offset + 2] = value >> 8 ;
- data [offset + 3] = value ;
- }
- else
- { data [offset] = value ;
- data [offset + 1] = value >> 8 ;
- data [offset + 2] = value >> 16 ;
- data [offset + 3] = value >> 24 ;
- } ;
- } /* write_marker */
- static void
- write_str (unsigned char * data, int offset, const char * buffer, int buffer_len)
- { memcpy (data + offset, buffer, buffer_len) ;
- } /* write_str */
- static int
- sd2_write_rsrc_fork (SF_PRIVATE *psf, int UNUSED (calc_length))
- { SD2_RSRC rsrc ;
- STR_RSRC str_rsrc [] =
- { { RSRC_STR, 1000, "_sample-size", "", 0 },
- { RSRC_STR, 1001, "_sample-rate", "", 0 },
- { RSRC_STR, 1002, "_channels", "", 0 },
- { RSRC_BIN, 1000, "_Markers", "", 8 }
- } ;
- int k, str_offset, data_offset, next_str ;
- psf_use_rsrc (psf, SF_TRUE) ;
- memset (&rsrc, 0, sizeof (rsrc)) ;
- rsrc.sample_rate = psf->sf.samplerate ;
- rsrc.sample_size = psf->bytewidth ;
- rsrc.channels = psf->sf.channels ;
- rsrc.rsrc_data = psf->header ;
- rsrc.rsrc_len = sizeof (psf->header) ;
- memset (rsrc.rsrc_data, 0xea, rsrc.rsrc_len) ;
- snprintf (str_rsrc [0].value, sizeof (str_rsrc [0].value), "_%d", rsrc.sample_size) ;
- snprintf (str_rsrc [1].value, sizeof (str_rsrc [1].value), "_%d.000000", rsrc.sample_rate) ;
- snprintf (str_rsrc [2].value, sizeof (str_rsrc [2].value), "_%d", rsrc.channels) ;
- for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++)
- { if (str_rsrc [k].value_len == 0)
- { str_rsrc [k].value_len = strlen (str_rsrc [k].value) ;
- str_rsrc [k].value [0] = str_rsrc [k].value_len - 1 ;
- } ;
- /* Turn name string into a pascal string. */
- str_rsrc [k].name [0] = strlen (str_rsrc [k].name) - 1 ;
- } ;
- rsrc.data_offset = 0x100 ;
- /*
- ** Calculate data length :
- ** length of strings, plus the length of the sdML chunk.
- */
- rsrc.data_length = 0 ;
- for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++)
- rsrc.data_length += str_rsrc [k].value_len + 4 ;
- rsrc.map_offset = rsrc.data_offset + rsrc.data_length ;
- /* Very start of resource fork. */
- write_int (rsrc.rsrc_data, 0, rsrc.data_offset) ;
- write_int (rsrc.rsrc_data, 4, rsrc.map_offset) ;
- write_int (rsrc.rsrc_data, 8, rsrc.data_length) ;
- write_char (rsrc.rsrc_data, 0x30, strlen (psf->file.name.c)) ;
- write_str (rsrc.rsrc_data, 0x31, psf->file.name.c, strlen (psf->file.name.c)) ;
- write_short (rsrc.rsrc_data, 0x50, 0) ;
- write_marker (rsrc.rsrc_data, 0x52, Sd2f_MARKER) ;
- write_marker (rsrc.rsrc_data, 0x56, lsf1_MARKER) ;
- /* Very start of resource map. */
- write_int (rsrc.rsrc_data, rsrc.map_offset + 0, rsrc.data_offset) ;
- write_int (rsrc.rsrc_data, rsrc.map_offset + 4, rsrc.map_offset) ;
- write_int (rsrc.rsrc_data, rsrc.map_offset + 8, rsrc.data_length) ;
- /* These I don't currently understand. */
- if (1)
- { write_char (rsrc.rsrc_data, rsrc.map_offset+ 16, 1) ;
- /* Next resource map. */
- write_int (rsrc.rsrc_data, rsrc.map_offset + 17, 0x12345678) ;
- /* File ref number. */
- write_short (rsrc.rsrc_data, rsrc.map_offset + 21, 0xabcd) ;
- /* Fork attributes. */
- write_short (rsrc.rsrc_data, rsrc.map_offset + 23, 0) ;
- } ;
- /* Resource type offset. */
- rsrc.type_offset = rsrc.map_offset + 30 ;
- write_short (rsrc.rsrc_data, rsrc.map_offset + 24, rsrc.type_offset - rsrc.map_offset - 2) ;
- /* Type index max. */
- rsrc.type_count = 2 ;
- write_short (rsrc.rsrc_data, rsrc.map_offset + 28, rsrc.type_count - 1) ;
- rsrc.item_offset = rsrc.type_offset + rsrc.type_count * 8 ;
- rsrc.str_count = ARRAY_LEN (str_rsrc) ;
- rsrc.string_offset = rsrc.item_offset + (rsrc.str_count + 1) * 12 - rsrc.map_offset ;
- write_short (rsrc.rsrc_data, rsrc.map_offset + 26, rsrc.string_offset) ;
- /* Write 'STR ' resource type. */
- rsrc.str_count = 3 ;
- write_marker (rsrc.rsrc_data, rsrc.type_offset, STR_MARKER) ;
- write_short (rsrc.rsrc_data, rsrc.type_offset + 4, rsrc.str_count - 1) ;
- write_short (rsrc.rsrc_data, rsrc.type_offset + 6, 0x12) ;
- /* Write 'sdML' resource type. */
- write_marker (rsrc.rsrc_data, rsrc.type_offset + 8, sdML_MARKER) ;
- write_short (rsrc.rsrc_data, rsrc.type_offset + 12, 0) ;
- write_short (rsrc.rsrc_data, rsrc.type_offset + 14, 0x36) ;
- str_offset = rsrc.map_offset + rsrc.string_offset ;
- next_str = 0 ;
- data_offset = rsrc.data_offset ;
- for (k = 0 ; k < ARRAY_LEN (str_rsrc) ; k++)
- { write_str (rsrc.rsrc_data, str_offset, str_rsrc [k].name, strlen (str_rsrc [k].name)) ;
- write_short (rsrc.rsrc_data, rsrc.item_offset + k * 12, str_rsrc [k].id) ;
- write_short (rsrc.rsrc_data, rsrc.item_offset + k * 12 + 2, next_str) ;
- str_offset += strlen (str_rsrc [k].name) ;
- next_str += strlen (str_rsrc [k].name) ;
- write_int (rsrc.rsrc_data, rsrc.item_offset + k * 12 + 4, data_offset - rsrc.data_offset) ;
- write_int (rsrc.rsrc_data, data_offset, str_rsrc [k].value_len) ;
- write_str (rsrc.rsrc_data, data_offset + 4, str_rsrc [k].value, str_rsrc [k].value_len) ;
- data_offset += 4 + str_rsrc [k].value_len ;
- } ;
- /* Finally, calculate and set map length. */
- rsrc.map_length = str_offset - rsrc.map_offset ;
- write_int (rsrc.rsrc_data, 12, rsrc.map_length) ;
- write_int (rsrc.rsrc_data, rsrc.map_offset + 12, rsrc.map_length) ;
- rsrc.rsrc_len = rsrc.map_offset + rsrc.map_length ;
- psf_fwrite (rsrc.rsrc_data, rsrc.rsrc_len, 1, psf) ;
- psf_use_rsrc (psf, SF_FALSE) ;
- if (psf->error)
- return psf->error ;
- return 0 ;
- } /* sd2_write_rsrc_fork */
- /*------------------------------------------------------------------------------
- */
- static inline int
- read_char (const unsigned char * data, int offset)
- { return data [offset] ;
- } /* read_char */
- static inline int
- read_short (const unsigned char * data, int offset)
- { return (data [offset] << 8) + data [offset + 1] ;
- } /* read_short */
- static inline int
- read_int (const unsigned char * data, int offset)
- { return (data [offset] << 24) + (data [offset + 1] << 16) + (data [offset + 2] << 8) + data [offset + 3] ;
- } /* read_int */
- static inline int
- read_marker (const unsigned char * data, int offset)
- {
- if (CPU_IS_BIG_ENDIAN)
- return (data [offset] << 24) + (data [offset + 1] << 16) + (data [offset + 2] << 8) + data [offset + 3] ;
- else if (CPU_IS_LITTLE_ENDIAN)
- return data [offset] + (data [offset + 1] << 8) + (data [offset + 2] << 16) + (data [offset + 3] << 24) ;
- else
- return 0x666 ;
- } /* read_marker */
- static void
- read_str (const unsigned char * data, int offset, char * buffer, int buffer_len)
- { int k ;
- memset (buffer, 0, buffer_len) ;
- for (k = 0 ; k < buffer_len - 1 ; k++)
- { if (psf_isprint (data [offset + k]) == 0)
- return ;
- buffer [k] = data [offset + k] ;
- } ;
- return ;
- } /* read_str */
- static int
- sd2_parse_rsrc_fork (SF_PRIVATE *psf)
- { SD2_RSRC rsrc ;
- int k, marker, error = 0 ;
- psf_use_rsrc (psf, SF_TRUE) ;
- memset (&rsrc, 0, sizeof (rsrc)) ;
- rsrc.rsrc_len = psf_get_filelen (psf) ;
- psf_log_printf (psf, "Resource length : %d (0x%04X)n", rsrc.rsrc_len, rsrc.rsrc_len) ;
- if (rsrc.rsrc_len > SIGNED_SIZEOF (psf->header))
- { rsrc.rsrc_data = calloc (1, rsrc.rsrc_len) ;
- rsrc.need_to_free_rsrc_data = SF_TRUE ;
- }
- else
- rsrc.rsrc_data = psf->header ;
- /* Read in the whole lot. */
- psf_fread (rsrc.rsrc_data, rsrc.rsrc_len, 1, psf) ;
- /* Reset the header storage because we have changed to the rsrcdes. */
- psf->headindex = psf->headend = rsrc.rsrc_len ;
- rsrc.data_offset = read_int (rsrc.rsrc_data, 0) ;
- rsrc.map_offset = read_int (rsrc.rsrc_data, 4) ;
- rsrc.data_length = read_int (rsrc.rsrc_data, 8) ;
- rsrc.map_length = read_int (rsrc.rsrc_data, 12) ;
- if (rsrc.data_offset == 0x51607 && rsrc.map_offset == 0x20000)
- { psf_log_printf (psf, "Trying offset of 0x52 bytes.n") ;
- rsrc.data_offset = read_int (rsrc.rsrc_data, 0x52 + 0) + 0x52 ;
- rsrc.map_offset = read_int (rsrc.rsrc_data, 0x52 + 4) + 0x52 ;
- rsrc.data_length = read_int (rsrc.rsrc_data, 0x52 + 8) ;
- rsrc.map_length = read_int (rsrc.rsrc_data, 0x52 + 12) ;
- } ;
- psf_log_printf (psf, " data offset : 0x%04Xn map offset : 0x%04Xn"
- " data length : 0x%04Xn map length : 0x%04Xn",
- rsrc.data_offset, rsrc.map_offset, rsrc.data_length, rsrc.map_length) ;
- if (rsrc.data_offset > rsrc.rsrc_len)
- { psf_log_printf (psf, "Error : rsrc.data_offset (%d, 0x%x) > lenn", rsrc.data_offset, rsrc.data_offset) ;
- error = SFE_SD2_BAD_DATA_OFFSET ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- if (rsrc.map_offset > rsrc.rsrc_len)
- { psf_log_printf (psf, "Error : rsrc.map_offset > lenn") ;
- error = SFE_SD2_BAD_MAP_OFFSET ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- if (rsrc.data_length > rsrc.rsrc_len)
- { psf_log_printf (psf, "Error : rsrc.data_length > lenn") ;
- error = SFE_SD2_BAD_DATA_LENGTH ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- if (rsrc.map_length > rsrc.rsrc_len)
- { psf_log_printf (psf, "Error : rsrc.map_length > lenn") ;
- error = SFE_SD2_BAD_MAP_LENGTH ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- if (rsrc.data_offset + rsrc.data_length != rsrc.map_offset || rsrc.map_offset + rsrc.map_length != rsrc.rsrc_len)
- { psf_log_printf (psf, "Error : This does not look like a MacOSX resource fork.n") ;
- error = SFE_SD2_BAD_RSRC ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- if (rsrc.map_offset + 28 >= rsrc.rsrc_len)
- { psf_log_printf (psf, "Bad map offset (%d + 28 > %d).n", rsrc.map_offset, rsrc.rsrc_len) ;
- error = SFE_SD2_BAD_RSRC ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- rsrc.string_offset = rsrc.map_offset + read_short (rsrc.rsrc_data, rsrc.map_offset + 26) ;
- if (rsrc.string_offset > rsrc.rsrc_len)
- { psf_log_printf (psf, "Bad string offset (%d).n", rsrc.string_offset) ;
- error = SFE_SD2_BAD_RSRC ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- rsrc.type_offset = rsrc.map_offset + 30 ;
- rsrc.type_count = read_short (rsrc.rsrc_data, rsrc.map_offset + 28) + 1 ;
- if (rsrc.type_count < 1)
- { psf_log_printf (psf, "Bad type count.n") ;
- error = SFE_SD2_BAD_RSRC ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- rsrc.item_offset = rsrc.type_offset + rsrc.type_count * 8 ;
- if (rsrc.item_offset < 0 || rsrc.item_offset > rsrc.rsrc_len)
- { psf_log_printf (psf, "Bad item offset (%d).n", rsrc.item_offset) ;
- error = SFE_SD2_BAD_RSRC ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- rsrc.str_index = -1 ;
- for (k = 0 ; k < rsrc.type_count ; k ++)
- { marker = read_marker (rsrc.rsrc_data, rsrc.type_offset + k * 8) ;
- if (marker == STR_MARKER)
- { rsrc.str_index = k ;
- rsrc.str_count = read_short (rsrc.rsrc_data, rsrc.type_offset + k * 8 + 4) + 1 ;
- error = parse_str_rsrc (psf, &rsrc) ;
- goto parse_rsrc_fork_cleanup ;
- } ;
- } ;
- psf_log_printf (psf, "No 'STR ' resource.n") ;
- error = SFE_SD2_BAD_RSRC ;
- parse_rsrc_fork_cleanup :
- psf_use_rsrc (psf, SF_FALSE) ;
- if (rsrc.need_to_free_rsrc_data)
- free (rsrc.rsrc_data) ;
- return error ;
- } /* sd2_parse_rsrc_fork */
- static int
- parse_str_rsrc (SF_PRIVATE *psf, SD2_RSRC * rsrc)
- { char name [32], value [32] ;
- int k, str_offset, rsrc_id, data_offset = 0, data_len = 0 ;
- psf_log_printf (psf, "Finding parameters :n") ;
- str_offset = rsrc->string_offset ;
- psf_log_printf (psf, " Offset RsrcId dlen slen Valuen") ;
- for (k = 0 ; data_offset + data_len < rsrc->rsrc_len ; k++)
- { int slen ;
- slen = read_char (rsrc->rsrc_data, str_offset) ;
- read_str (rsrc->rsrc_data, str_offset + 1, name, SF_MIN (SIGNED_SIZEOF (name), slen + 1)) ;
- str_offset += slen + 1 ;
- rsrc_id = read_short (rsrc->rsrc_data, rsrc->item_offset + k * 12) ;
- data_offset = rsrc->data_offset + read_int (rsrc->rsrc_data, rsrc->item_offset + k * 12 + 4) ;
- if (data_offset < 0 || data_offset > rsrc->rsrc_len)
- { psf_log_printf (psf, "Exiting parser on data offset of %d.n", data_offset) ;
- break ;
- } ;
- data_len = read_int (rsrc->rsrc_data, data_offset) ;
- if (data_len < 0 || data_len > rsrc->rsrc_len)
- { psf_log_printf (psf, "Exiting parser on data length of %d.n", data_len) ;
- break ;
- } ;
- slen = read_char (rsrc->rsrc_data, data_offset + 4) ;
- read_str (rsrc->rsrc_data, data_offset + 5, value, SF_MIN (SIGNED_SIZEOF (value), slen + 1)) ;
- psf_log_printf (psf, " 0x%04x %4d %4d %3d '%s'n", data_offset, rsrc_id, data_len, slen, value) ;
- if (rsrc_id == 1000 && rsrc->sample_size == 0)
- rsrc->sample_size = strtol (value, NULL, 10) ;
- else if (rsrc_id == 1001 && rsrc->sample_rate == 0)
- rsrc->sample_rate = strtol (value, NULL, 10) ;
- else if (rsrc_id == 1002 && rsrc->channels == 0)
- rsrc->channels = strtol (value, NULL, 10) ;
- } ;
- psf_log_printf (psf, "Found Parameters :n") ;
- psf_log_printf (psf, " sample-size : %dn", rsrc->sample_size) ;
- psf_log_printf (psf, " sample-rate : %dn", rsrc->sample_rate) ;
- psf_log_printf (psf, " channels : %dn", rsrc->channels) ;
- if (rsrc->sample_rate <= 4 && rsrc->sample_size > 4)
- { int temp ;
- psf_log_printf (psf, "Geez!! Looks like sample rate and sample size got switched.nCorrecting this screw up.n") ;
- temp = rsrc->sample_rate ;
- rsrc->sample_rate = rsrc->sample_size ;
- rsrc->sample_size = temp ;
- } ;
- if (rsrc->sample_rate < 0)
- { psf_log_printf (psf, "Bad sample rate (%d)n", rsrc->sample_rate) ;
- return SFE_SD2_BAD_RSRC ;
- } ;
- if (rsrc->channels < 0)
- { psf_log_printf (psf, "Bad channel count (%d)n", rsrc->channels) ;
- return SFE_SD2_BAD_RSRC ;
- } ;
- psf->sf.samplerate = rsrc->sample_rate ;
- psf->sf.channels = rsrc->channels ;
- psf->bytewidth = rsrc->sample_size ;
- switch (rsrc->sample_size)
- { case 1 :
- psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_S8 ;
- break ;
- case 2 :
- psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_16 ;
- break ;
- case 3 :
- psf->sf.format = SF_FORMAT_SD2 | SF_FORMAT_PCM_24 ;
- break ;
- default :
- psf_log_printf (psf, "Bad sample size (%d)n", rsrc->sample_size) ;
- return SFE_SD2_BAD_SAMPLE_SIZE ;
- } ;
- psf_log_printf (psf, "okn") ;
- return 0 ;
- } /* parse_str_rsrc */