63 static int startread(sox_format_t * ft)  in startread()  argument
65   priv_t * avr = (priv_t *)ft->priv;  in startread()
68   lsx_reads(ft, avr->magic, (size_t)4);  in startread()
71     lsx_fail_errno(ft,SOX_EHDR,"AVR: unknown header");  in startread()
75   lsx_readbuf(ft, avr->name, sizeof(avr->name));  in startread()
77   lsx_readw (ft, &(avr->mono));  in startread()
79     ft->signal.channels = 2;  in startread()
82     ft->signal.channels = 1;  in startread()
85   lsx_readw (ft, &(avr->rez));  in startread()
87     ft->encoding.bits_per_sample = 8;  in startread()
90     ft->encoding.bits_per_sample = 16;  in startread()
93     lsx_fail_errno(ft,SOX_EFMT,"AVR: unsupported sample resolution");  in startread()
97   lsx_readw (ft, &(avr->sign));  in startread()
99     ft->encoding.encoding = SOX_ENCODING_SIGN2;  in startread()
102     ft->encoding.encoding = SOX_ENCODING_UNSIGNED;  in startread()
105   lsx_readw (ft, &(avr->loop));  in startread()
107   lsx_readw (ft, &(avr->midi));  in startread()
109   lsx_readdw (ft, &(avr->rate));  in startread()
116   ft->signal.rate = (avr->rate & 0x00ffffff);  in startread()
118   lsx_readdw (ft, &(avr->size));  in startread()
120   lsx_readdw (ft, &(avr->lbeg));  in startread()
122   lsx_readdw (ft, &(avr->lend));  in startread()
124   lsx_readw (ft, &(avr->res1));  in startread()
126   lsx_readw (ft, &(avr->res2));  in startread()
128   lsx_readw (ft, &(avr->res3));  in startread()
130   lsx_readbuf(ft, avr->ext, sizeof(avr->ext));  in startread()
132   lsx_readbuf(ft, avr->user, sizeof(avr->user));  in startread()
134   rc = lsx_rawstartread (ft);  in startread()
141 static int startwrite(sox_format_t * ft)  in startwrite()  argument
143   priv_t * avr = (priv_t *)ft->priv;  in startwrite()
146   if (!ft->seekable) {  in startwrite()
147     lsx_fail_errno(ft,SOX_EOF,"AVR: file is not seekable");  in startwrite()
151   rc = lsx_rawstartwrite (ft);  in startwrite()
156   lsx_writes(ft, AVR_MAGIC);  in startwrite()
159   lsx_writeb(ft, 0);  in startwrite()
160   lsx_writeb(ft, 0);  in startwrite()
161   lsx_writeb(ft, 0);  in startwrite()
162   lsx_writeb(ft, 0);  in startwrite()
163   lsx_writeb(ft, 0);  in startwrite()
164   lsx_writeb(ft, 0);  in startwrite()
165   lsx_writeb(ft, 0);  in startwrite()
166   lsx_writeb(ft, 0);  in startwrite()
169   if (ft->signal.channels == 1) {  in startwrite()
170     lsx_writew (ft, 0);  in startwrite()
172   else if (ft->signal.channels == 2) {  in startwrite()
173     lsx_writew (ft, 0xffff);  in startwrite()
176     lsx_fail_errno(ft,SOX_EFMT,"AVR: number of channels not supported");  in startwrite()
181   if (ft->encoding.bits_per_sample == 8) {  in startwrite()
182     lsx_writew (ft, 8);  in startwrite()
184   else if (ft->encoding.bits_per_sample == 16) {  in startwrite()
185     lsx_writew (ft, 16);  in startwrite()
188     lsx_fail_errno(ft,SOX_EFMT,"AVR: unsupported sample resolution");  in startwrite()
193   if (ft->encoding.encoding == SOX_ENCODING_SIGN2) {  in startwrite()
194     lsx_writew (ft, 0xffff);  in startwrite()
196   else if (ft->encoding.encoding == SOX_ENCODING_UNSIGNED) {  in startwrite()
197     lsx_writew (ft, 0);  in startwrite()
200     lsx_fail_errno(ft,SOX_EFMT,"AVR: unsupported encoding");  in startwrite()
205   lsx_writew (ft, 0xffff);  in startwrite()
208   lsx_writew (ft, 0xffff);  in startwrite()
211   lsx_writedw(ft, (unsigned)(ft->signal.rate + .5));  in startwrite()
215   lsx_writedw (ft, 0);  in startwrite()
218   lsx_writedw (ft, 0);  in startwrite()
222   lsx_writedw (ft, 0);  in startwrite()
225   lsx_writew (ft, 0);  in startwrite()
228   lsx_writew (ft, 0);  in startwrite()
231   lsx_writew (ft, 0);  in startwrite()
234   lsx_writebuf(ft, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", sizeof(avr->ext));  in startwrite()
237   lsx_writebuf(ft,  in startwrite()
246 static size_t write_samples(sox_format_t * ft, const sox_sample_t *buf, size_t nsamp)  in write_samples()  argument
248   priv_t * avr = (priv_t *)ft->priv;  in write_samples()
252   return (lsx_rawwrite (ft, buf, nsamp));  in write_samples()
255 static int stopwrite(sox_format_t * ft)  in stopwrite()  argument
257   priv_t * avr = (priv_t *)ft->priv;  in stopwrite()
259   unsigned size = avr->size / ft->signal.channels;  in stopwrite()
262   lsx_seeki(ft, (off_t)26, SEEK_SET);  in stopwrite()
263   lsx_writedw (ft, size);  in stopwrite()
266   lsx_seeki(ft, (off_t)34, SEEK_SET);  in stopwrite()
267   lsx_writedw (ft, size);  in stopwrite()