/*- * Copyright (c) 2008-2009 Ariff Abdullah * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: head/sys/dev/sound/pcm/g711.h 193640 2009-06-07 19:12:08Z ariff $ */ #ifndef _SND_G711_H_ #define _SND_G711_H_ #define G711_TABLE_SIZE 256 #define ULAW_TO_U8 { \ 3, 7, 11, 15, 19, 23, 27, 31, \ 35, 39, 43, 47, 51, 55, 59, 63, \ 66, 68, 70, 72, 74, 76, 78, 80, \ 82, 84, 86, 88, 90, 92, 94, 96, \ 98, 99, 100, 101, 102, 103, 104, 105, \ 106, 107, 108, 109, 110, 111, 112, 113, \ 113, 114, 114, 115, 115, 116, 116, 117, \ 117, 118, 118, 119, 119, 120, 120, 121, \ 121, 121, 122, 122, 122, 122, 123, 123, \ 123, 123, 124, 124, 124, 124, 125, 125, \ 125, 125, 125, 125, 126, 126, 126, 126, \ 126, 126, 126, 126, 127, 127, 127, 127, \ 127, 127, 127, 127, 127, 127, 127, 127, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 253, 249, 245, 241, 237, 233, 229, 225, \ 221, 217, 213, 209, 205, 201, 197, 193, \ 190, 188, 186, 184, 182, 180, 178, 176, \ 174, 172, 170, 168, 166, 164, 162, 160, \ 158, 157, 156, 155, 154, 153, 152, 151, \ 150, 149, 148, 147, 146, 145, 144, 143, \ 143, 142, 142, 141, 141, 140, 140, 139, \ 139, 138, 138, 137, 137, 136, 136, 135, \ 135, 135, 134, 134, 134, 134, 133, 133, \ 133, 133, 132, 132, 132, 132, 131, 131, \ 131, 131, 131, 131, 130, 130, 130, 130, \ 130, 130, 130, 130, 129, 129, 129, 129, \ 129, 129, 129, 129, 129, 129, 129, 129, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ } #define ALAW_TO_U8 { \ 108, 109, 106, 107, 112, 113, 110, 111, \ 100, 101, 98, 99, 104, 105, 102, 103, \ 118, 118, 117, 117, 120, 120, 119, 119, \ 114, 114, 113, 113, 116, 116, 115, 115, \ 43, 47, 35, 39, 59, 63, 51, 55, \ 11, 15, 3, 7, 27, 31, 19, 23, \ 86, 88, 82, 84, 94, 96, 90, 92, \ 70, 72, 66, 68, 78, 80, 74, 76, \ 127, 127, 127, 127, 127, 127, 127, 127, \ 127, 127, 127, 127, 127, 127, 127, 127, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 123, 123, 123, 123, 124, 124, 124, 124, \ 121, 121, 121, 121, 122, 122, 122, 122, \ 126, 126, 126, 126, 126, 126, 126, 126, \ 125, 125, 125, 125, 125, 125, 125, 125, \ 148, 147, 150, 149, 144, 143, 146, 145, \ 156, 155, 158, 157, 152, 151, 154, 153, \ 138, 138, 139, 139, 136, 136, 137, 137, \ 142, 142, 143, 143, 140, 140, 141, 141, \ 213, 209, 221, 217, 197, 193, 205, 201, \ 245, 241, 253, 249, 229, 225, 237, 233, \ 170, 168, 174, 172, 162, 160, 166, 164, \ 186, 184, 190, 188, 178, 176, 182, 180, \ 129, 129, 129, 129, 129, 129, 129, 129, \ 129, 129, 129, 129, 129, 129, 129, 129, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 128, 128, 128, 128, 128, 128, 128, 128, \ 133, 133, 133, 133, 132, 132, 132, 132, \ 135, 135, 135, 135, 134, 134, 134, 134, \ 130, 130, 130, 130, 130, 130, 130, 130, \ 131, 131, 131, 131, 131, 131, 131, 131, \ } #define U8_TO_ULAW { \ 0, 0, 0, 0, 0, 1, 1, 1, \ 1, 2, 2, 2, 2, 3, 3, 3, \ 3, 4, 4, 4, 4, 5, 5, 5, \ 5, 6, 6, 6, 6, 7, 7, 7, \ 7, 8, 8, 8, 8, 9, 9, 9, \ 9, 10, 10, 10, 10, 11, 11, 11, \ 11, 12, 12, 12, 12, 13, 13, 13, \ 13, 14, 14, 14, 14, 15, 15, 15, \ 15, 16, 16, 17, 17, 18, 18, 19, \ 19, 20, 20, 21, 21, 22, 22, 23, \ 23, 24, 24, 25, 25, 26, 26, 27, \ 27, 28, 28, 29, 29, 30, 30, 31, \ 31, 32, 33, 34, 35, 36, 37, 38, \ 39, 40, 41, 42, 43, 44, 45, 46, \ 47, 49, 51, 53, 55, 57, 59, 61, \ 63, 66, 70, 74, 78, 84, 92, 104, \ 254, 231, 219, 211, 205, 201, 197, 193, \ 190, 188, 186, 184, 182, 180, 178, 176, \ 175, 174, 173, 172, 171, 170, 169, 168, \ 167, 166, 165, 164, 163, 162, 161, 160, \ 159, 159, 158, 158, 157, 157, 156, 156, \ 155, 155, 154, 154, 153, 153, 152, 152, \ 151, 151, 150, 150, 149, 149, 148, 148, \ 147, 147, 146, 146, 145, 145, 144, 144, \ 143, 143, 143, 143, 142, 142, 142, 142, \ 141, 141, 141, 141, 140, 140, 140, 140, \ 139, 139, 139, 139, 138, 138, 138, 138, \ 137, 137, 137, 137, 136, 136, 136, 136, \ 135, 135, 135, 135, 134, 134, 134, 134, \ 133, 133, 133, 133, 132, 132, 132, 132, \ 131, 131, 131, 131, 130, 130, 130, 130, \ 129, 129, 129, 129, 128, 128, 128, 128, \ } #define U8_TO_ALAW { \ 42, 42, 42, 42, 42, 43, 43, 43, \ 43, 40, 40, 40, 40, 41, 41, 41, \ 41, 46, 46, 46, 46, 47, 47, 47, \ 47, 44, 44, 44, 44, 45, 45, 45, \ 45, 34, 34, 34, 34, 35, 35, 35, \ 35, 32, 32, 32, 32, 33, 33, 33, \ 33, 38, 38, 38, 38, 39, 39, 39, \ 39, 36, 36, 36, 36, 37, 37, 37, \ 37, 58, 58, 59, 59, 56, 56, 57, \ 57, 62, 62, 63, 63, 60, 60, 61, \ 61, 50, 50, 51, 51, 48, 48, 49, \ 49, 54, 54, 55, 55, 52, 52, 53, \ 53, 10, 11, 8, 9, 14, 15, 12, \ 13, 2, 3, 0, 1, 6, 7, 4, \ 5, 24, 30, 28, 18, 16, 22, 20, \ 106, 110, 98, 102, 122, 114, 75, 90, \ 213, 197, 245, 253, 229, 225, 237, 233, \ 149, 151, 145, 147, 157, 159, 153, 155, \ 133, 132, 135, 134, 129, 128, 131, 130, \ 141, 140, 143, 142, 137, 136, 139, 138, \ 181, 181, 180, 180, 183, 183, 182, 182, \ 177, 177, 176, 176, 179, 179, 178, 178, \ 189, 189, 188, 188, 191, 191, 190, 190, \ 185, 185, 184, 184, 187, 187, 186, 186, \ 165, 165, 165, 165, 164, 164, 164, 164, \ 167, 167, 167, 167, 166, 166, 166, 166, \ 161, 161, 161, 161, 160, 160, 160, 160, \ 163, 163, 163, 163, 162, 162, 162, 162, \ 173, 173, 173, 173, 172, 172, 172, 172, \ 175, 175, 175, 175, 174, 174, 174, 174, \ 169, 169, 169, 169, 168, 168, 168, 168, \ 171, 171, 171, 171, 170, 170, 170, 170, \ } #define _G711_TO_INTPCM(t, v) ((intpcm_t) \ ((int8_t)((t)[(uint8_t)(v)] ^ 0x80))) #define _INTPCM_TO_G711(t, v) ((t)[(uint8_t)((v) ^ 0x80)]) #define G711_DECLARE_TABLE(t) \ static const struct { \ const uint8_t ulaw_to_u8[G711_TABLE_SIZE]; \ const uint8_t alaw_to_u8[G711_TABLE_SIZE]; \ const uint8_t u8_to_ulaw[G711_TABLE_SIZE]; \ const uint8_t u8_to_alaw[G711_TABLE_SIZE]; \ } t = { \ ULAW_TO_U8, ALAW_TO_U8, \ U8_TO_ULAW, U8_TO_ALAW \ } #define G711_DECLARE_OP(t) \ static __inline intpcm_t \ pcm_read_ulaw(uint8_t v) \ { \ \ return (_G711_TO_INTPCM((t).ulaw_to_u8, v)); \ } \ \ static __inline intpcm_t \ pcm_read_alaw(uint8_t v) \ { \ \ return (_G711_TO_INTPCM((t).alaw_to_u8, v)); \ } \ \ static __inline void \ pcm_write_ulaw(uint8_t *dst, intpcm_t v) \ { \ \ *dst = _INTPCM_TO_G711((t).u8_to_ulaw, v); \ } \ \ static __inline void \ pcm_write_alaw(uint8_t *dst, intpcm_t v) \ { \ \ *dst = _INTPCM_TO_G711((t).u8_to_alaw, v); \ } #define G711_DECLARE(t) \ G711_DECLARE_TABLE(t); \ G711_DECLARE_OP(t) #endif /* !_SND_G711_H_ */