Date: Wed, 6 Aug 1997 10:13:21 +0200 (MET DST) From: Wolfgang Helbig <helbig@MX.BA-Stuttgart.De> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4233: pca driver does not support A-law encodings. Message-ID: <199708060813.KAA09793@helbig.informatik.ba-stuttgart.de> Resent-Message-ID: <199708060820.BAA07752@hub.freebsd.org>
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>Number: 4233
>Category: kern
>Synopsis: pca driver does not support A-law encodings.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Aug 6 01:20:01 PDT 1997
>Last-Modified:
>Originator: Wolfgang Helbig
>Organization:
>Release: FreeBSD 3.0-CURRENT i386
>Environment:
>Description:
The pca driver, which controlls the PC speaker, does not
support A-law encoded sound files, i. e. this driver is
not finished yet.
A-law encoding is used among other things by ISDN in Europe
and I need this ability for my ISDN answering machine.
(bisdntel)
>How-To-Repeat:
>Fix:
Here there is a diff file for /usr/src/sys/i386/isa/pcaudio.c and
a new file /usr/src/sys/i386/isa/sound/alaw.h
Index: pcaudio.c
===================================================================
RCS file: /usr/cvsroot/src/sys/i386/isa/pcaudio.c,v
retrieving revision 1.34
diff -c -r1.34 pcaudio.c
*** pcaudio.c 1997/02/22 09:36:58 1.34
--- pcaudio.c 1997/08/03 17:11:13
***************
*** 48,53 ****
--- 48,55 ----
#define DSP_ULAW_NOT_WANTED
#include <i386/isa/sound/ulaw.h>
+ #define LINEAR_ALAW_NOT_WANTED
+ #include <i386/isa/sound/alaw.h>
#ifdef DEVFS
#include <sys/devfsext.h>
***************
*** 355,360 ****
--- 357,363 ----
break;
case AUDIO_ENCODING_ALAW:
+ conv(alaw_linear, pca_status.buf[which], count);
break;
case AUDIO_ENCODING_RAW:
======================================================================
New file: /sys/i386/isa/sound/alaw.h
static unsigned char alaw_linear[] = {
45, 214, 122, 133, 0, 255, 107, 149,
86, 171, 126, 129, 0, 255, 117, 138,
13, 246, 120, 135, 0, 255, 99, 157,
70, 187, 124, 131, 0, 255, 113, 142,
61, 198, 123, 132, 0, 255, 111, 145,
94, 163, 127, 128, 0, 255, 119, 136,
29, 230, 121, 134, 0, 255, 103, 153,
78, 179, 125, 130, 0, 255, 115, 140,
37, 222, 122, 133, 0, 255, 105, 151,
82, 175, 126, 129, 0, 255, 116, 139,
5, 254, 120, 135, 0, 255, 97, 159,
66, 191, 124, 131, 0, 255, 112, 143,
53, 206, 123, 132, 0, 255, 109, 147,
90, 167, 127, 128, 0, 255, 118, 137,
21, 238, 121, 134, 0, 255, 101, 155,
74, 183, 125, 130, 0, 255, 114, 141,
49, 210, 123, 133, 0, 255, 108, 148,
88, 169, 127, 129, 0, 255, 118, 138,
17, 242, 121, 135, 0, 255, 100, 156,
72, 185, 125, 131, 0, 255, 114, 142,
64, 194, 124, 132, 0, 255, 112, 144,
96, 161, 128, 128, 1, 255, 120, 136,
33, 226, 122, 134, 0, 255, 104, 152,
80, 177, 126, 130, 0, 255, 116, 140,
41, 218, 122, 133, 0, 255, 106, 150,
84, 173, 126, 129, 0, 255, 117, 139,
9, 250, 120, 135, 0, 255, 98, 158,
68, 189, 124, 131, 0, 255, 113, 143,
57, 202, 123, 132, 0, 255, 110, 146,
92, 165, 127, 128, 0, 255, 119, 137,
25, 234, 121, 134, 0, 255, 102, 154,
76, 181, 125, 130, 0, 255, 115, 141,
};
#ifndef LINEAR_ALAW_NOT_WANTED
static unsigned char linear_alaw[] = {
252, 172, 172, 172, 172, 80, 80, 80,
80, 208, 208, 208, 208, 16, 16, 16,
16, 144, 144, 144, 144, 112, 112, 112,
112, 240, 240, 240, 240, 48, 48, 48,
48, 176, 176, 176, 176, 64, 64, 64,
64, 192, 192, 192, 192, 0, 0, 0,
0, 128, 128, 128, 128, 96, 96, 96,
96, 224, 224, 224, 224, 32, 32, 32,
160, 160, 88, 88, 216, 216, 24, 24,
152, 152, 120, 120, 248, 248, 56, 56,
184, 184, 72, 72, 200, 200, 8, 8,
136, 136, 104, 104, 232, 232, 40, 40,
168, 86, 214, 22, 150, 118, 246, 54,
182, 70, 198, 6, 134, 102, 230, 38,
166, 222, 158, 254, 190, 206, 142, 238,
210, 242, 194, 226, 218, 250, 202, 234,
235, 203, 251, 219, 227, 195, 243, 211,
175, 239, 143, 207, 191, 255, 159, 223,
167, 39, 231, 103, 135, 7, 199, 71,
183, 55, 247, 119, 151, 23, 215, 87,
87, 169, 169, 41, 41, 233, 233, 105,
105, 137, 137, 9, 9, 201, 201, 73,
73, 185, 185, 57, 57, 249, 249, 121,
121, 153, 153, 25, 25, 217, 217, 89,
89, 89, 161, 161, 161, 161, 33, 33,
33, 33, 225, 225, 225, 225, 97, 97,
97, 97, 129, 129, 129, 129, 1, 1,
1, 1, 193, 193, 193, 193, 65, 65,
65, 65, 177, 177, 177, 177, 49, 49,
49, 49, 241, 241, 241, 241, 113, 113,
113, 113, 145, 145, 145, 145, 17, 17,
17, 17, 209, 209, 209, 209, 81, 253,
};
#endif /* !LINEAR_ALAW_NOT_WANTED */
>Audit-Trail:
>Unformatted:
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