25 static int start_read(sox_format_t * ft)  in start_read()  argument
38   if (lsx_reads(ft, fldname, (size_t)8) || strncmp(fldname, "NIST_1A", (size_t)7) != 0) {  in start_read()
39     lsx_fail_errno(ft, SOX_EHDR, "Sphere header does not begin with magic word `NIST_1A'");  in start_read()
43   if (lsx_reads(ft, fldsval, (size_t)8)) {  in start_read()
44     lsx_fail_errno(ft, SOX_EHDR, "Error reading Sphere header");  in start_read()
51     lsx_fail_errno(ft, SOX_EHDR, "Error reading Sphere header");  in start_read()
60   if (lsx_reads(ft, buf, header_size) == SOX_EOF) {  in start_read()
61     lsx_fail_errno(ft, SOX_EHDR, "Error reading Sphere header");  in start_read()
84         lsx_fail_errno(ft, SOX_EFMT, "sph: unsupported coding `%s'", fldsval);  in start_read()
92         ft->encoding.reverse_bytes = MACHINE_IS_BIGENDIAN;  in start_read()
94         ft->encoding.reverse_bytes = MACHINE_IS_LITTLEENDIAN;  in start_read()
96         lsx_fail_errno(ft, SOX_EFMT, "sph: unsupported coding `%s'", fldsval);  in start_read()
102     if (lsx_reads(ft, buf, header_size) == SOX_EOF) {  in start_read()
103       lsx_fail_errno(ft, SOX_EHDR, "Error reading Sphere header");  in start_read()
115     bytes_read = lsx_readbuf(ft, buf, header_size);  in start_read()
124   if (ft->seekable) {  in start_read()
128     if (lsx_readchars(ft, shorten_check, sizeof(shorten_check)))  in start_read()
130     lsx_seeki(ft, -(off_t)sizeof(shorten_check), SEEK_CUR);  in start_read()
133       lsx_fail_errno(ft, SOX_EFMT,  in start_read()
140   return lsx_check_read_params(ft, channels, (sox_rate_t)rate, encoding,  in start_read()
144 static int write_header(sox_format_t * ft)  in write_header()  argument
147   uint64_t samples = (ft->olength ? ft->olength : ft->signal.length) / ft->signal.channels;  in write_header()
149   lsx_writes(ft, "NIST_1A\n");  in write_header()
150   lsx_writes(ft, "   1024\n");  in write_header()
154     lsx_writes(ft, buf);  in write_header()
157   sprintf(buf, "sample_n_bytes -i %d\n", ft->encoding.bits_per_sample >> 3);  in write_header()
158   lsx_writes(ft, buf);  in write_header()
160   sprintf(buf, "channel_count -i %d\n", ft->signal.channels);  in write_header()
161   lsx_writes(ft, buf);  in write_header()
163   if (ft->encoding.bits_per_sample == 8)  in write_header()
167             ft->encoding.reverse_bytes != MACHINE_IS_BIGENDIAN ? "10" : "01");  in write_header()
168   lsx_writes(ft, buf);  in write_header()
170   sprintf(buf, "sample_rate -i %u\n", (unsigned) (ft->signal.rate + .5));  in write_header()
171   lsx_writes(ft, buf);  in write_header()
173   if (ft->encoding.encoding == SOX_ENCODING_ULAW)  in write_header()
174     lsx_writes(ft, "sample_coding -s4 ulaw\n");  in write_header()
176     lsx_writes(ft, "sample_coding -s3 pcm\n");  in write_header()
178   lsx_writes(ft, "end_head\n");  in write_header()
180   lsx_padbytes(ft, 1024 - (size_t)lsx_tell(ft));  in write_header()