66ef8af5b0
this introduces a new buffering mechanism which results in dramatic simplification of the channel manager. as several structures have changed, we take the opportunity to move their definitions into the source files where they are used, make them private and de-typedef them. the sound drivers are updated to use snd_setup_intr instead of bus_setup_intr, and to comply with the de-typedefed structures. the ac97, mixer and channel layers have been updated with finegrained locking, as have some drivers- not all though. the rest will follow soon.
544 lines
18 KiB
C
544 lines
18 KiB
C
/*
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* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <dev/sound/pcm/sound.h>
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#include "feeder_if.h"
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MALLOC_DEFINE(M_FMTFEEDER, "fmtfeed", "pcm format feeder");
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#define FEEDBUFSZ 8192
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static unsigned char ulaw_to_u8[] = {
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3, 7, 11, 15, 19, 23, 27, 31,
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35, 39, 43, 47, 51, 55, 59, 63,
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66, 68, 70, 72, 74, 76, 78, 80,
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82, 84, 86, 88, 90, 92, 94, 96,
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98, 99, 100, 101, 102, 103, 104, 105,
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106, 107, 108, 109, 110, 111, 112, 113,
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113, 114, 114, 115, 115, 116, 116, 117,
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117, 118, 118, 119, 119, 120, 120, 121,
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121, 121, 122, 122, 122, 122, 123, 123,
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123, 123, 124, 124, 124, 124, 125, 125,
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125, 125, 125, 125, 126, 126, 126, 126,
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126, 126, 126, 126, 127, 127, 127, 127,
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127, 127, 127, 127, 127, 127, 127, 127,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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253, 249, 245, 241, 237, 233, 229, 225,
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221, 217, 213, 209, 205, 201, 197, 193,
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190, 188, 186, 184, 182, 180, 178, 176,
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174, 172, 170, 168, 166, 164, 162, 160,
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158, 157, 156, 155, 154, 153, 152, 151,
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150, 149, 148, 147, 146, 145, 144, 143,
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143, 142, 142, 141, 141, 140, 140, 139,
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139, 138, 138, 137, 137, 136, 136, 135,
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135, 135, 134, 134, 134, 134, 133, 133,
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133, 133, 132, 132, 132, 132, 131, 131,
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131, 131, 131, 131, 130, 130, 130, 130,
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130, 130, 130, 130, 129, 129, 129, 129,
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129, 129, 129, 129, 129, 129, 129, 129,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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};
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static unsigned char u8_to_ulaw[] = {
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0, 0, 0, 0, 0, 1, 1, 1,
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1, 2, 2, 2, 2, 3, 3, 3,
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3, 4, 4, 4, 4, 5, 5, 5,
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5, 6, 6, 6, 6, 7, 7, 7,
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7, 8, 8, 8, 8, 9, 9, 9,
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9, 10, 10, 10, 10, 11, 11, 11,
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11, 12, 12, 12, 12, 13, 13, 13,
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13, 14, 14, 14, 14, 15, 15, 15,
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15, 16, 16, 17, 17, 18, 18, 19,
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19, 20, 20, 21, 21, 22, 22, 23,
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23, 24, 24, 25, 25, 26, 26, 27,
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27, 28, 28, 29, 29, 30, 30, 31,
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31, 32, 33, 34, 35, 36, 37, 38,
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39, 40, 41, 42, 43, 44, 45, 46,
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47, 49, 51, 53, 55, 57, 59, 61,
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63, 66, 70, 74, 78, 84, 92, 104,
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254, 231, 219, 211, 205, 201, 197, 193,
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190, 188, 186, 184, 182, 180, 178, 176,
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175, 174, 173, 172, 171, 170, 169, 168,
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167, 166, 165, 164, 163, 162, 161, 160,
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159, 159, 158, 158, 157, 157, 156, 156,
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155, 155, 154, 154, 153, 153, 152, 152,
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151, 151, 150, 150, 149, 149, 148, 148,
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147, 147, 146, 146, 145, 145, 144, 144,
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143, 143, 143, 143, 142, 142, 142, 142,
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141, 141, 141, 141, 140, 140, 140, 140,
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139, 139, 139, 139, 138, 138, 138, 138,
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137, 137, 137, 137, 136, 136, 136, 136,
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135, 135, 135, 135, 134, 134, 134, 134,
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133, 133, 133, 133, 132, 132, 132, 132,
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131, 131, 131, 131, 130, 130, 130, 130,
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129, 129, 129, 129, 128, 128, 128, 128,
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};
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static unsigned char alaw_to_ulaw[] = {
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42, 43, 40, 41, 46, 47, 44, 45,
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34, 35, 32, 33, 38, 39, 36, 37,
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57, 58, 55, 56, 61, 62, 59, 60,
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49, 50, 48, 48, 53, 54, 51, 52,
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10, 11, 8, 9, 14, 15, 12, 13,
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2, 3, 0, 1, 6, 7, 4, 5,
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26, 27, 24, 25, 30, 31, 28, 29,
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18, 19, 16, 17, 22, 23, 20, 21,
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98, 99, 96, 97, 102, 103, 100, 101,
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93, 93, 92, 92, 95, 95, 94, 94,
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116, 118, 112, 114, 124, 126, 120, 122,
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106, 107, 104, 105, 110, 111, 108, 109,
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72, 73, 70, 71, 76, 77, 74, 75,
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64, 65, 63, 63, 68, 69, 66, 67,
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86, 87, 84, 85, 90, 91, 88, 89,
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79, 79, 78, 78, 82, 83, 80, 81,
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170, 171, 168, 169, 174, 175, 172, 173,
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162, 163, 160, 161, 166, 167, 164, 165,
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185, 186, 183, 184, 189, 190, 187, 188,
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177, 178, 176, 176, 181, 182, 179, 180,
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138, 139, 136, 137, 142, 143, 140, 141,
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130, 131, 128, 129, 134, 135, 132, 133,
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154, 155, 152, 153, 158, 159, 156, 157,
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146, 147, 144, 145, 150, 151, 148, 149,
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226, 227, 224, 225, 230, 231, 228, 229,
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221, 221, 220, 220, 223, 223, 222, 222,
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244, 246, 240, 242, 252, 254, 248, 250,
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234, 235, 232, 233, 238, 239, 236, 237,
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200, 201, 198, 199, 204, 205, 202, 203,
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192, 193, 191, 191, 196, 197, 194, 195,
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214, 215, 212, 213, 218, 219, 216, 217,
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207, 207, 206, 206, 210, 211, 208, 209,
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};
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static unsigned char ulaw_to_alaw[] = {
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42, 43, 40, 41, 46, 47, 44, 45,
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34, 35, 32, 33, 38, 39, 36, 37,
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58, 59, 56, 57, 62, 63, 60, 61,
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50, 51, 48, 49, 54, 55, 52, 53,
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10, 11, 8, 9, 14, 15, 12, 13,
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2, 3, 0, 1, 6, 7, 4, 5,
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27, 24, 25, 30, 31, 28, 29, 18,
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19, 16, 17, 22, 23, 20, 21, 106,
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104, 105, 110, 111, 108, 109, 98, 99,
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96, 97, 102, 103, 100, 101, 122, 120,
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126, 127, 124, 125, 114, 115, 112, 113,
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118, 119, 116, 117, 75, 73, 79, 77,
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66, 67, 64, 65, 70, 71, 68, 69,
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90, 91, 88, 89, 94, 95, 92, 93,
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82, 82, 83, 83, 80, 80, 81, 81,
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86, 86, 87, 87, 84, 84, 85, 85,
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170, 171, 168, 169, 174, 175, 172, 173,
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162, 163, 160, 161, 166, 167, 164, 165,
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186, 187, 184, 185, 190, 191, 188, 189,
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178, 179, 176, 177, 182, 183, 180, 181,
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138, 139, 136, 137, 142, 143, 140, 141,
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130, 131, 128, 129, 134, 135, 132, 133,
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155, 152, 153, 158, 159, 156, 157, 146,
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147, 144, 145, 150, 151, 148, 149, 234,
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232, 233, 238, 239, 236, 237, 226, 227,
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224, 225, 230, 231, 228, 229, 250, 248,
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254, 255, 252, 253, 242, 243, 240, 241,
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246, 247, 244, 245, 203, 201, 207, 205,
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194, 195, 192, 193, 198, 199, 196, 197,
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218, 219, 216, 217, 222, 223, 220, 221,
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210, 210, 211, 211, 208, 208, 209, 209,
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214, 214, 215, 215, 212, 212, 213, 213,
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};
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/*****************************************************************************/
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static int
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feed_8to16le(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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int i, j, k;
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k = FEEDER_FEED(f->source, c, b, count / 2, source);
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j = k - 1;
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i = j * 2 + 1;
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while (i > 0 && j >= 0) {
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b[i--] = b[j--];
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b[i--] = 0;
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}
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return k * 2;
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}
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static struct pcm_feederdesc feeder_8to16le_desc[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_U16_LE, 0},
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S8, AFMT_S16_LE, 0},
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{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
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{0},
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};
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static kobj_method_t feeder_8to16le_methods[] = {
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KOBJMETHOD(feeder_feed, feed_8to16le),
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{ 0, 0 }
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};
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FEEDER_DECLARE(feeder_8to16le, 0, NULL);
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/*****************************************************************************/
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static int
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feed_16to8_init(struct pcm_feeder *f)
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{
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f->data = malloc(FEEDBUFSZ, M_FMTFEEDER, M_WAITOK | M_ZERO);
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return (f->data == NULL)? 0 : ENOMEM;
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}
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static int
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feed_16to8_free(struct pcm_feeder *f)
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{
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if (f->data)
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free(f->data, M_FMTFEEDER);
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f->data = NULL;
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return 0;
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}
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static int
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feed_16leto8(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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u_int32_t i = 0, toget = count * 2;
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int j = 1, k;
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k = FEEDER_FEED(f->source, c, f->data, min(toget, FEEDBUFSZ), source);
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while (j < k) {
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b[i++] = ((u_int8_t *)f->data)[j];
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j += 2;
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}
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return i;
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}
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static struct pcm_feederdesc feeder_16leto8_desc[] = {
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{FEEDER_FMT, AFMT_U16_LE, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_LE, AFMT_S8, 0},
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{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_S8 | AFMT_STEREO, 0},
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{0},
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};
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static kobj_method_t feeder_16leto8_methods[] = {
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KOBJMETHOD(feeder_init, feed_16to8_init),
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KOBJMETHOD(feeder_free, feed_16to8_free),
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KOBJMETHOD(feeder_feed, feed_16leto8),
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{ 0, 0 }
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};
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FEEDER_DECLARE(feeder_16leto8, 1, NULL);
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/*****************************************************************************/
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static int
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feed_monotostereo8(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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int i, j, k = FEEDER_FEED(f->source, c, b, count / 2, source);
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j = k - 1;
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i = j * 2 + 1;
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while (i > 0 && j >= 0) {
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b[i--] = b[j];
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b[i--] = b[j];
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j--;
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}
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return k * 2;
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}
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static struct pcm_feederdesc feeder_monotostereo8_desc[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_U8 | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S8, AFMT_S8 | AFMT_STEREO, 0},
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{0},
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};
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static kobj_method_t feeder_monotostereo8_methods[] = {
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KOBJMETHOD(feeder_feed, feed_monotostereo8),
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{ 0, 0 }
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};
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FEEDER_DECLARE(feeder_monotostereo8, 0, NULL);
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/*****************************************************************************/
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static int
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feed_monotostereo16(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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int i, j, k = FEEDER_FEED(f->source, c, b, count / 2, source);
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u_int8_t x, y;
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j = k - 1;
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i = j * 2 + 1;
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while (i > 3 && j >= 1) {
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x = b[j--];
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y = b[j--];
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b[i--] = x;
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b[i--] = y;
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b[i--] = x;
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b[i--] = y;
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}
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return k * 2;
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}
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static struct pcm_feederdesc feeder_monotostereo16_desc[] = {
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{FEEDER_FMT, AFMT_U16_LE, AFMT_U16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_LE, AFMT_S16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_U16_BE, AFMT_U16_BE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_BE, AFMT_S16_BE | AFMT_STEREO, 0},
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{0},
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};
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static kobj_method_t feeder_monotostereo16_methods[] = {
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KOBJMETHOD(feeder_feed, feed_monotostereo16),
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{ 0, 0 }
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};
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FEEDER_DECLARE(feeder_monotostereo16, 0, NULL);
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/*****************************************************************************/
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static int
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feed_stereotomono8_init(struct pcm_feeder *f)
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{
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f->data = malloc(FEEDBUFSZ, M_FMTFEEDER, M_WAITOK | M_ZERO);
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return (f->data == NULL)? 0 : ENOMEM;
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}
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static int
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feed_stereotomono8_free(struct pcm_feeder *f)
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{
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if (f->data)
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free(f->data, M_FMTFEEDER);
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f->data = NULL;
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return 0;
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}
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static int
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feed_stereotomono8(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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u_int32_t i = 0, toget = count * 2;
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int j = 0, k;
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k = FEEDER_FEED(f->source, c, f->data, min(toget, FEEDBUFSZ), source);
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while (j < k) {
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b[i++] = ((u_int8_t *)f->data)[j];
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j += 2;
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}
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return i;
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}
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static struct pcm_feederdesc feeder_stereotomono8_desc[] = {
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_S8, 0},
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{0},
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};
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static kobj_method_t feeder_stereotomono8_methods[] = {
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KOBJMETHOD(feeder_init, feed_stereotomono8_init),
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KOBJMETHOD(feeder_free, feed_stereotomono8_free),
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KOBJMETHOD(feeder_feed, feed_stereotomono8),
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{ 0, 0 }
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};
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FEEDER_DECLARE(feeder_stereotomono8, 1, NULL);
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/*****************************************************************************/
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static int
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feed_stereotomono16_init(struct pcm_feeder *f)
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{
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f->data = malloc(FEEDBUFSZ, M_FMTFEEDER, M_WAITOK | M_ZERO);
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return (f->data == NULL)? 0 : ENOMEM;
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}
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static int
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feed_stereotomono16_free(struct pcm_feeder *f)
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{
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if (f->data)
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free(f->data, M_FMTFEEDER);
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f->data = NULL;
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return 0;
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}
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static int
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feed_stereotomono16(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
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{
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u_int32_t i = 0, toget = count * 2;
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int j = 0, k;
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k = FEEDER_FEED(f->source, c, f->data, min(toget, FEEDBUFSZ), source);
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while (j < k) {
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b[i++] = ((u_int8_t *)f->data)[j];
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b[i++] = ((u_int8_t *)f->data)[j + 1];
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j += 4;
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}
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return i;
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}
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static struct pcm_feederdesc feeder_stereotomono16_desc[] = {
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{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_U16_LE, 0},
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{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_S16_LE, 0},
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{FEEDER_FMT, AFMT_U16_BE | AFMT_STEREO, AFMT_U16_BE, 0},
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{FEEDER_FMT, AFMT_S16_BE | AFMT_STEREO, AFMT_S16_BE, 0},
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{0},
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};
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static kobj_method_t feeder_stereotomono16_methods[] = {
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KOBJMETHOD(feeder_init, feed_stereotomono16_init),
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KOBJMETHOD(feeder_free, feed_stereotomono16_free),
|
|
KOBJMETHOD(feeder_feed, feed_stereotomono16),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_stereotomono16, 1, NULL);
|
|
|
|
/*****************************************************************************/
|
|
|
|
static int
|
|
feed_endian(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
|
|
{
|
|
u_int8_t t;
|
|
int i = 0, j = FEEDER_FEED(f->source, c, b, count, source);
|
|
|
|
while (i < j) {
|
|
t = b[i];
|
|
b[i] = b[i + 1];
|
|
b[i + 1] = t;
|
|
i += 2;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static struct pcm_feederdesc feeder_endian_desc[] = {
|
|
{FEEDER_FMT, AFMT_U16_LE, AFMT_U16_BE, 0},
|
|
{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_U16_BE | AFMT_STEREO, 0},
|
|
{FEEDER_FMT, AFMT_S16_LE, AFMT_S16_BE, 0},
|
|
{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_S16_BE | AFMT_STEREO, 0},
|
|
{FEEDER_FMT, AFMT_U16_BE, AFMT_U16_LE, 0},
|
|
{FEEDER_FMT, AFMT_U16_BE | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
|
|
{FEEDER_FMT, AFMT_S16_BE, AFMT_S16_LE, 0},
|
|
{FEEDER_FMT, AFMT_S16_BE | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_endian_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_endian),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_endian, 0, NULL);
|
|
|
|
/*****************************************************************************/
|
|
|
|
static int
|
|
feed_sign(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
|
|
{
|
|
int i = 0, j = FEEDER_FEED(f->source, c, b, count, source);
|
|
int ssz = (int)f->data, ofs = ssz - 1;
|
|
|
|
while (i < j) {
|
|
b[i + ofs] ^= 0x80;
|
|
i += ssz;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static struct pcm_feederdesc feeder_sign8_desc[] = {
|
|
{FEEDER_FMT, AFMT_U8, AFMT_S8, 0},
|
|
{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_S8 | AFMT_STEREO, 0},
|
|
{FEEDER_FMT, AFMT_S8, AFMT_U8, 0},
|
|
{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_sign8_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_sign),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_sign8, 0, (void *)1);
|
|
|
|
static struct pcm_feederdesc feeder_sign16le_desc[] = {
|
|
{FEEDER_FMT, AFMT_U16_LE, AFMT_S16_LE, 0},
|
|
{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
|
|
{FEEDER_FMT, AFMT_S16_LE, AFMT_U16_LE, 0},
|
|
{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_sign16le_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_sign),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_sign16le, -1, (void *)2);
|
|
|
|
/*****************************************************************************/
|
|
|
|
static int
|
|
feed_table(struct pcm_feeder *f, struct pcm_channel *c, u_int8_t *b, u_int32_t count, void *source)
|
|
{
|
|
int i = 0, j = FEEDER_FEED(f->source, c, b, count, source);
|
|
|
|
while (i < j) {
|
|
b[i] = ((u_int8_t *)f->data)[b[i]];
|
|
i++;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static struct pcm_feederdesc feeder_ulawtou8_desc[] = {
|
|
{FEEDER_FMT, AFMT_MU_LAW, AFMT_U8, 0},
|
|
{FEEDER_FMT, AFMT_MU_LAW | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_ulawtou8_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_table),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_ulawtou8, 0, ulaw_to_u8);
|
|
|
|
static struct pcm_feederdesc feeder_u8toulaw_desc[] = {
|
|
{FEEDER_FMT, AFMT_U8, AFMT_MU_LAW, 0},
|
|
{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_MU_LAW | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_u8toulaw_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_table),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_u8toulaw, 0, u8_to_ulaw);
|
|
|
|
static struct pcm_feederdesc feeder_alawtoulaw_desc[] = {
|
|
{FEEDER_FMT, AFMT_A_LAW, AFMT_MU_LAW, 0},
|
|
{FEEDER_FMT, AFMT_A_LAW | AFMT_STEREO, AFMT_MU_LAW | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_alawtoulaw_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_table),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_alawtoulaw, 0, alaw_to_ulaw);
|
|
|
|
static struct pcm_feederdesc feeder_ulawtoalaw_desc[] = {
|
|
{FEEDER_FMT, AFMT_MU_LAW, AFMT_A_LAW, 0},
|
|
{FEEDER_FMT, AFMT_MU_LAW | AFMT_STEREO, AFMT_A_LAW | AFMT_STEREO, 0},
|
|
{0},
|
|
};
|
|
static kobj_method_t feeder_ulawtoalaw_methods[] = {
|
|
KOBJMETHOD(feeder_feed, feed_table),
|
|
{ 0, 0 }
|
|
};
|
|
FEEDER_DECLARE(feeder_ulawtoalaw, 0, ulaw_to_alaw);
|
|
|
|
|
|
|