Lines Matching defs:psf
48 static int psf_g72x_decode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) ;
49 static int psf_g72x_encode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x) ;
51 static sf_count_t g72x_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len) ;
52 static sf_count_t g72x_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len) ;
53 static sf_count_t g72x_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len) ;
54 static sf_count_t g72x_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len) ;
56 static sf_count_t g72x_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len) ;
57 static sf_count_t g72x_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len) ;
58 static sf_count_t g72x_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len) ;
59 static sf_count_t g72x_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len) ;
61 static sf_count_t g72x_seek (SF_PRIVATE *psf, int mode, sf_count_t offset) ;
63 static int g72x_close (SF_PRIVATE *psf) ;
71 g72x_init (SF_PRIVATE * psf)
75 if (psf->codec_data != NULL)
76 { psf_log_printf (psf, "*** psf->codec_data is not NULL.\n") ;
80 psf->sf.seekable = SF_FALSE ;
82 if (psf->sf.channels != 1)
88 psf->codec_data = (void*) pg72x ;
93 switch (SF_CODEC (psf->sf.format))
115 psf->filelength = psf_get_filelen (psf) ;
116 if (psf->filelength < psf->dataoffset)
117 psf->filelength = psf->dataoffset ;
119 psf->datalength = psf->filelength - psf->dataoffset ;
120 if (psf->dataend > 0)
121 psf->datalength -= psf->filelength - psf->dataend ;
123 if (psf->file.mode == SFM_READ)
130 psf->read_short = g72x_read_s ;
131 psf->read_int = g72x_read_i ;
132 psf->read_float = g72x_read_f ;
133 psf->read_double = g72x_read_d ;
135 psf->seek = g72x_seek ;
137 if (psf->datalength % pg72x->blocksize)
138 { psf_log_printf (psf, "*** Odd psf->datalength (%D) should be a multiple of %d\n", psf->datalength, pg72x->blocksize) ;
139 pg72x->blocks_total = (psf->datalength / pg72x->blocksize) + 1 ;
142 pg72x->blocks_total = psf->datalength / pg72x->blocksize ;
144 psf->sf.frames = (sf_count_t) pg72x->blocks_total * pg72x->samplesperblock ;
146 psf_g72x_decode_block (psf, pg72x) ;
148 else if (psf->file.mode == SFM_WRITE)
155 psf->write_short = g72x_write_s ;
156 psf->write_int = g72x_write_i ;
157 psf->write_float = g72x_write_f ;
158 psf->write_double = g72x_write_d ;
160 if (psf->datalength % pg72x->blocksize)
161 pg72x->blocks_total = (psf->datalength / pg72x->blocksize) + 1 ;
163 pg72x->blocks_total = psf->datalength / pg72x->blocksize ;
165 if (psf->datalength > 0)
166 psf->sf.frames = (8 * psf->datalength) / bitspersample ;
168 if ((psf->sf.frames * bitspersample) / 8 != psf->datalength)
169 psf_log_printf (psf, "*** Warning : weird psf->datalength.\n") ;
172 psf->codec_close = g72x_close ;
182 psf_g72x_decode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x)
193 if ((k = psf_fread (pg72x->block, 1, pg72x->bytesperblock, psf)) != pg72x->bytesperblock)
194 psf_log_printf (psf, "*** Warning : short read (%d != %d).\n", k, pg72x->bytesperblock) ;
203 g72x_read_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x, short *ptr, int len)
213 psf_g72x_decode_block (psf, pg72x) ;
228 g72x_read_s (SF_PRIVATE *psf, short *ptr, sf_count_t len)
233 if (psf->codec_data == NULL)
235 pg72x = (G72x_PRIVATE*) psf->codec_data ;
240 count = g72x_read_block (psf, pg72x, ptr, readcount) ;
253 g72x_read_i (SF_PRIVATE *psf, int *ptr, sf_count_t len)
260 if (psf->codec_data == NULL)
262 pg72x = (G72x_PRIVATE*) psf->codec_data ;
268 count = g72x_read_block (psf, pg72x, sptr, readcount) ;
283 g72x_read_f (SF_PRIVATE *psf, float *ptr, sf_count_t len)
291 if (psf->codec_data == NULL)
293 pg72x = (G72x_PRIVATE*) psf->codec_data ;
295 normfact = (psf->norm_float == SF_TRUE) ? 1.0 / ((float) 0x8000) : 1.0 ;
301 count = g72x_read_block (psf, pg72x, sptr, readcount) ;
315 g72x_read_d (SF_PRIVATE *psf, double *ptr, sf_count_t len)
323 if (psf->codec_data == NULL)
325 pg72x = (G72x_PRIVATE*) psf->codec_data ;
327 normfact = (psf->norm_double == SF_TRUE) ? 1.0 / ((double) 0x8000) : 1.0 ;
333 count = g72x_read_block (psf, pg72x, sptr, readcount) ;
347 g72x_seek (SF_PRIVATE *psf, int UNUSED (mode), sf_count_t UNUSED (offset))
349 psf_log_printf (psf, "seek unsupported\n") ;
361 ** if (psf->codec_data == NULL)
363 ** pg72x = (G72x_PRIVATE*) psf->codec_data ;
365 ** if (! (psf->datalength && psf->dataoffset))
366 ** { psf->error = SFE_BAD_SEEK ;
370 ** sample_curr = (8 * psf->datalength) / G721_32_BITS_PER_SAMPLE ;
375 ** { psf->error = SFE_BAD_SEEK ;
383 ** if (psf->current + offset < 0 || psf->current + offset > sample_curr)
384 ** { psf->error = SFE_BAD_SEEK ;
387 ** newblock = (8 * (psf->current + offset)) / pg72x->samplesperblock ;
388 ** newsample = (8 * (psf->current + offset)) % pg72x->samplesperblock ;
393 ** { psf->error = SFE_BAD_SEEK ;
401 ** psf->error = SFE_BAD_SEEK ;
405 ** if (psf->file.mode == SFM_READ)
406 ** { psf_fseek (psf, psf->dataoffset + newblock * pg72x->blocksize, SEEK_SET) ;
408 ** psf_g72x_decode_block (psf, pg72x) ;
413 ** psf->error = SFE_BAD_SEEK ;
417 ** psf->current = newblock * pg72x->samplesperblock + newsample ;
418 ** return psf->current ;
428 psf_g72x_encode_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x)
435 if ((k = psf_fwrite (pg72x->block, 1, pg72x->blocksize, psf)) != pg72x->blocksize)
436 psf_log_printf (psf, "*** Warning : short write (%d != %d).\n", k, pg72x->blocksize) ;
448 g72x_write_block (SF_PRIVATE *psf, G72x_PRIVATE *pg72x, const short *ptr, int len)
463 psf_g72x_encode_block (psf, pg72x) ;
470 g72x_write_s (SF_PRIVATE *psf, const short *ptr, sf_count_t len)
475 if (psf->codec_data == NULL)
477 pg72x = (G72x_PRIVATE*) psf->codec_data ;
482 count = g72x_write_block (psf, pg72x, ptr, writecount) ;
494 g72x_write_i (SF_PRIVATE *psf, const int *ptr, sf_count_t len)
501 if (psf->codec_data == NULL)
503 pg72x = (G72x_PRIVATE*) psf->codec_data ;
511 count = g72x_write_block (psf, pg72x, sptr, writecount) ;
522 g72x_write_f (SF_PRIVATE *psf, const float *ptr, sf_count_t len)
530 if (psf->codec_data == NULL)
532 pg72x = (G72x_PRIVATE*) psf->codec_data ;
534 normfact = (psf->norm_float == SF_TRUE) ? (1.0 * 0x8000) : 1.0 ;
542 count = g72x_write_block (psf, pg72x, sptr, writecount) ;
554 g72x_write_d (SF_PRIVATE *psf, const double *ptr, sf_count_t len)
562 if (psf->codec_data == NULL)
564 pg72x = (G72x_PRIVATE*) psf->codec_data ;
566 normfact = (psf->norm_double == SF_TRUE) ? (1.0 * 0x8000) : 1.0 ;
574 count = g72x_write_block (psf, pg72x, sptr, writecount) ;
586 g72x_close (SF_PRIVATE *psf)
589 pg72x = (G72x_PRIVATE*) psf->codec_data ;
591 if (psf->file.mode == SFM_WRITE)
597 psf_g72x_encode_block (psf, pg72x) ;
599 if (psf->write_header)
600 psf->write_header (psf, SF_FALSE) ;