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/* libSoX Sounder format handler (c) 2008 robs@users.sourceforge.net
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* See description in soundr3b.zip on the net. |
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* |
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* This library is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 2.1 of the License, or (at |
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* your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this library; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "sox_i.h" |
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static int start_read(sox_format_t * ft) |
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{ |
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uint16_t type, rate; |
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if (lsx_readw(ft, &type) || lsx_readw(ft, &rate) || lsx_skipbytes(ft, (size_t) 4)) |
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return SOX_EOF; |
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if (type) { |
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lsx_fail_errno(ft, SOX_EHDR, "invalid Sounder header"); |
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return SOX_EOF; |
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} |
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return lsx_check_read_params(ft, 1, (sox_rate_t)rate, SOX_ENCODING_UNSIGNED, 8, (uint64_t)0, sox_true); |
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} |
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static int write_header(sox_format_t * ft) |
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{ |
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return lsx_writew(ft, 0) /* sample type */ |
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|| lsx_writew(ft, min(65535, (unsigned)(ft->signal.rate + .5))) |
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|| lsx_writew(ft, 10) /* speaker driver volume */ |
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|| lsx_writew(ft, 4)? /* speaker driver DC shift */ |
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SOX_EOF : SOX_SUCCESS; |
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} |
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LSX_FORMAT_HANDLER(sounder) |
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{ |
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static char const * const names[] = {"sndr", NULL}; |
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static unsigned const write_encodings[] = {SOX_ENCODING_UNSIGNED, 8, 0, 0}; |
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static sox_format_handler_t const handler = {SOX_LIB_VERSION_CODE, |
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"8-bit linear audio as used by Aaron Wallace's `Sounder' of 1991", |
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names, SOX_FILE_LIT_END | SOX_FILE_MONO, |
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start_read, lsx_rawread, NULL, |
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write_header, lsx_rawwrite, NULL, |
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lsx_rawseek, write_encodings, NULL, 0 |
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}; |
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return &handler; |
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} |
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@ -1,78 +0,0 @@ |
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/* libSoX SoundTool format handler (c) 2008 robs@users.sourceforge.net
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* See description in sndtl26.zip on the net. |
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* |
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* This library is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 2.1 of the License, or (at |
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* your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this library; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "sox_i.h" |
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#include <string.h> |
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static char const ID1[6] = "SOUND\x1a"; |
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#define text_field_len (size_t)96 /* Includes null-terminator */ |
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static int start_read(sox_format_t * ft) |
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{ |
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char id1[sizeof(ID1)], comments[text_field_len + 1]; |
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uint32_t nsamples; |
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uint16_t rate; |
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if (lsx_readchars(ft, id1, sizeof(ID1)) || |
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lsx_skipbytes(ft, (size_t) 10) || lsx_readdw(ft, &nsamples) || |
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lsx_readw(ft, &rate) || lsx_skipbytes(ft, (size_t) 6) || |
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lsx_readchars(ft, comments, text_field_len)) |
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return SOX_EOF; |
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if (memcmp(ID1, id1, sizeof(id1))) { |
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lsx_fail_errno(ft, SOX_EHDR, "soundtool: can't find SoundTool identifier"); |
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return SOX_EOF; |
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} |
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comments[text_field_len] = '\0'; /* Be defensive against incorrect files */ |
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sox_append_comments(&ft->oob.comments, comments); |
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return lsx_check_read_params(ft, 1, (sox_rate_t)rate, SOX_ENCODING_UNSIGNED, 8, (uint64_t)nsamples, sox_true); |
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} |
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static int write_header(sox_format_t * ft) |
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{ |
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char * comment = lsx_cat_comments(ft->oob.comments); |
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char text_buf[text_field_len]; |
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uint64_t length = ft->olength? ft->olength:ft->signal.length; |
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memset(text_buf, 0, sizeof(text_buf)); |
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strncpy(text_buf, comment, text_field_len - 1); |
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free(comment); |
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return lsx_writechars(ft, ID1, sizeof(ID1)) |
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|| lsx_writew (ft, 0) /* GSound: not used */ |
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|| lsx_writedw (ft, (unsigned) length) /* length of complete sample */ |
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|| lsx_writedw (ft, 0) /* first byte to play from sample */ |
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|| lsx_writedw (ft, (unsigned) length) /* first byte NOT to play from sample */ |
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|| lsx_writew (ft, min(65535, (unsigned)(ft->signal.rate + .5))) |
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|| lsx_writew (ft, 0) /* sample size/type */ |
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|| lsx_writew (ft, 10) /* speaker driver volume */ |
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|| lsx_writew (ft, 4) /* speaker driver DC shift */ |
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|| lsx_writechars(ft, text_buf, sizeof(text_buf))? SOX_EOF:SOX_SUCCESS; |
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} |
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LSX_FORMAT_HANDLER(soundtool) |
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{ |
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static char const * const names[] = {"sndt", NULL}; |
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static unsigned const write_encodings[] = {SOX_ENCODING_UNSIGNED, 8, 0, 0}; |
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static sox_format_handler_t const handler = {SOX_LIB_VERSION_CODE, |
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"8-bit linear audio as used by Martin Hepperle's `SoundTool' of 1991/2", |
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names, SOX_FILE_LIT_END | SOX_FILE_MONO | SOX_FILE_REWIND, |
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start_read, lsx_rawread, NULL, |
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write_header, lsx_rawwrite, NULL, |
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lsx_rawseek, write_encodings, NULL, 0 |
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}; |
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return &handler; |
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} |
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