Mercurial > cpython-lru_cache-weakref

annotate Modules/linuxaudiodev.c @ 13163:a09e8635534d legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Don't try to guess the name of a .def file -- if one is supplied, use it, otherwise just generate an '/export:' option.
author Greg Ward <gward@python.net>
date Thu, 29 Jun 2000 23:09:20 +0000
parents 1c7c2dd1beb1
children 618a7280f6be
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1 /* Hey Emacs, this is -*-C-*-
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2 ******************************************************************************
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3 * linuxaudiodev.c -- Linux audio device for python.
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4 *
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5 * Author : Peter Bosch
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6 * Created On : Thu Mar 2 21:10:33 2000
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7 * Last Modified By: Peter Bosch
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8 * Last Modified On: Fri Mar 24 11:27:00 2000
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9 * Status : Unknown, Use with caution!
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10 *
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11 * Unless other notices are present in any part of this file
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12 * explicitly claiming copyrights for other people and/or
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13 * organizations, the contents of this file is fully copyright
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14 * (C) 2000 Peter Bosch, all rights reserved.
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15 ******************************************************************************
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16 */
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17
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18 #include "Python.h"
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19 #include "structmember.h"
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20
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21 #ifdef HAVE_UNISTD_H
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22 #include <unistd.h>
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23 #endif
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24
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25 #ifdef HAVE_FCNTL_H
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26 #include <fcntl.h>
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27 #endif
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28
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29 #include <sys/ioctl.h>
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30 #include <linux/soundcard.h>
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31
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32 typedef unsigned long uint32_t;
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33
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34 typedef struct {
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35 PyObject_HEAD;
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36 int x_fd; /* The open file */
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37 int x_icount; /* Input count */
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38 int x_ocount; /* Output count */
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39 uint32_t x_afmts; /* Supported audio formats */
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40 } lad_t;
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41
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42 static struct {
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43 int a_bps;
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44 uint32_t a_fmt;
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45 } audio_types[] = {
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46 { 8, AFMT_MU_LAW },
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47 { 8, AFMT_U8 },
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48 { 8, AFMT_S8 },
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49 { 16, AFMT_U16_BE },
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50 { 16, AFMT_U16_LE },
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51 { 16, AFMT_S16_BE },
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52 { 16, AFMT_S16_LE },
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53 };
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54
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55
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56 staticforward PyTypeObject Ladtype;
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57
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58 static PyObject *LinuxAudioError;
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59
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60 static lad_t *
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61 newladobject(PyObject *arg)
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62 {
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63 lad_t *xp;
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64 int fd, afmts, imode;
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65 char *mode;
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66 char *basedev;
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67 char *ctldev;
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68 char *opendev;
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69
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70 /* Check arg for r/w/rw */
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71 if (!PyArg_ParseTuple(arg, "s", &mode)) return NULL;
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72 if (strcmp(mode, "r") == 0)
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73 imode = 0;
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74 else if (strcmp(mode, "w") == 0)
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75 imode = 1;
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76 else {
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77 PyErr_SetString(LinuxAudioError, "Mode should be one of 'r', or 'w'");
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78 return NULL;
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79 }
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80
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81 /* Open the correct device. The base device name comes from the
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82 * AUDIODEV environment variable first, then /dev/audio. The
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83 * control device tacks "ctl" onto the base device name.
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84 */
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85 basedev = getenv("AUDIODEV");
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86 if (!basedev)
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87 basedev = "/dev/dsp";
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88
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89 if ((fd = open(basedev, imode)) < 0) {
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90 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
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91 return NULL;
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92 }
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93
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94 if (imode) {
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95 if (ioctl(fd, SNDCTL_DSP_NONBLOCK, NULL) < 0) {
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96 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
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97 return NULL;
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98 }
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99 }
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100
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101 if (ioctl(fd, SNDCTL_DSP_GETFMTS, &afmts) < 0) {
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102 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
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103 return NULL;
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104 }
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105
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106 /* Create and initialize the object */
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107 if ((xp = PyObject_New(lad_t, &Ladtype)) == NULL) {
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108 close(fd);
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109 return NULL;
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110 }
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111 xp->x_fd = fd;
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112 xp->x_icount = xp->x_ocount = 0;
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113 xp->x_afmts = afmts;
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114 return xp;
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115 }
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116
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117 static void
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118 lad_dealloc(lad_t *xp)
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119 {
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120 close(xp->x_fd);
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121 PyObject_Del(xp);
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122 }
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123
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124 static PyObject *
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125 lad_read(lad_t *self, PyObject *args)
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126 {
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127 int size, count;
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128 char *cp;
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129 PyObject *rv;
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130
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131 if (!PyArg_ParseTuple(args, "i", &size)) return NULL;
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132 rv = PyString_FromStringAndSize(NULL, size);
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133 if (rv == NULL) return NULL;
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134
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135 if (!(cp = PyString_AsString(rv))) {
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136 Py_DECREF(rv);
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137 return NULL;
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138 }
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139
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140 if ((count = read(self->x_fd, cp, size)) < 0) {
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141 PyErr_SetFromErrno(LinuxAudioError);
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142 Py_DECREF(rv);
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143 return NULL;
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144 }
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145
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Guido van Rossum <guido@python.org>
parents:
diff changeset
146 self->x_icount += count;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
147 return rv;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
148 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
149
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
150 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
151 lad_write(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
152 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 char *cp;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
154 int rv, size;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
155
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
156 if (!PyArg_ParseTuple(args, "s#", &cp, &size)) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
157
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
158 while (size > 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 if ((rv = write(self->x_fd, cp, size)) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
160 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
162 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
163 self->x_ocount += rv;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
164 size -= rv;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
165 cp += rv;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
166 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
167 Py_INCREF(Py_None);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
168 return Py_None;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
169 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
170
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
171 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
172 lad_close(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
173 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
174 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
175 if (self->x_fd >= 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
176 close(self->x_fd);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
177 self->x_fd = -1;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
178 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
179 Py_INCREF(Py_None);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
180 return Py_None;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
181 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
182
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
183 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
184 lad_fileno(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
186 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
187 return PyInt_FromLong(self->x_fd);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
188 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
189
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
190 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 lad_setparameters(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
192 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
193 int rate, ssize, nchannels, stereo, n, fmt;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
194
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
195 if (!PyArg_ParseTuple(args, "iiii", &rate, &ssize, &nchannels, &fmt))
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
196 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
197
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 if (rate < 0 || ssize < 0 || (nchannels != 1 && nchannels != 2)) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
199 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
200 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
201 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
202
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
203 if (ioctl(self->x_fd, SOUND_PCM_WRITE_RATE, &rate) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
204 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
205 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
207
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
208 if (ioctl(self->x_fd, SNDCTL_DSP_SAMPLESIZE, &ssize) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
209 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
211 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
212
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
213 stereo = (nchannels == 1)? 0: (nchannels == 2)? 1: -1;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
214 if (ioctl(self->x_fd, SNDCTL_DSP_STEREO, &stereo) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
215 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
216 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
217 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
218
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
219 for (n = 0; n != sizeof(audio_types) / sizeof(audio_types[0]); n++)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
220 if (fmt == audio_types[n].a_fmt)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
221 break;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
222
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
223 if (n == sizeof(audio_types) / sizeof(audio_types[0]) ||
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 audio_types[n].a_bps != ssize ||
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
225 (self->x_afmts & audio_types[n].a_fmt) == 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
227 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
228 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
229
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT, &audio_types[n].a_fmt) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
231 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
232 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
233 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
234
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
235 Py_INCREF(Py_None);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
236 return Py_None;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
237 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
238
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
239 static int
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 _ssize(lad_t *self, int *nchannels, int *ssize)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
242 int fmt;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
243
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
244 fmt = 0;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT, &fmt) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 return -errno;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
247
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
248 switch (fmt) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
249 case AFMT_MU_LAW:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
250 case AFMT_A_LAW:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 case AFMT_U8:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
252 case AFMT_S8:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
253 *ssize = sizeof(char);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
254 break;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 case AFMT_S16_LE:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
256 case AFMT_S16_BE:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 case AFMT_U16_LE:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
258 case AFMT_U16_BE:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 *ssize = sizeof(short);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
260 break;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
261 case AFMT_MPEG:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
262 case AFMT_IMA_ADPCM:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
263 default:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
264 return -EOPNOTSUPP;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
265 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
266
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
267 *nchannels = 0;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
268 if (ioctl(self->x_fd, SNDCTL_DSP_CHANNELS, nchannels) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
269 return -errno;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
270 return 0;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
271 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
272
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
273
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
274 /* bufsize returns the size of the hardware audio buffer in number
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
275 of samples */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
276 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
277 lad_bufsize(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
278 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
279 audio_buf_info ai;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
280 int nchannels, ssize;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
281
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
282 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
283
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
284 if (_ssize(self, &nchannels, &ssize) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
285 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
286 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
287 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
288
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
289 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
290 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
291 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
292 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
293
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
294 return PyInt_FromLong((ai.fragstotal * ai.fragsize) / (nchannels * ssize));
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
295 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
296
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
297 /* obufcount returns the number of samples that are available in the
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
298 hardware for playing */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
299 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
300 lad_obufcount(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
301 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
302 audio_buf_info ai;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
303 int nchannels, ssize;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
304
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
305 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
306
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
307 if (_ssize(self, &nchannels, &ssize) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
308 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
309 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
310 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
311
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
312 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
313 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
314 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
315 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
316
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
317 return PyInt_FromLong((ai.fragstotal * ai.fragsize - ai.bytes) /
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
318 (ssize * nchannels));
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
319 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
320
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
321 /* obufcount returns the number of samples that can be played without
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
322 blocking */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
323 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
324 lad_obuffree(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
325 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
326 audio_buf_info ai;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
327 int nchannels, ssize;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
328
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
329 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
330
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
331 if (_ssize(self, &nchannels, &ssize) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
332 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
333 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
334 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
335
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
336 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
337 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
338 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
339 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
340
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
341 return PyInt_FromLong(ai.bytes / (ssize * nchannels));
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
342 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
343
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
344 /* Flush the device */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
345 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
346 lad_flush(lad_t *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
347 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
348 if (!PyArg_ParseTuple(args, "")) return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
349
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
350 if (ioctl(self->x_fd, SNDCTL_DSP_SYNC, NULL) < 0) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
351 PyErr_SetFromErrno(LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
352 return NULL;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
353 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
354
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
355 Py_INCREF(Py_None);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
356 return Py_None;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
357 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
358
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
359 static PyMethodDef lad_methods[] = {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
360 { "read", (PyCFunction)lad_read, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
361 { "write", (PyCFunction)lad_write, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
362 { "setparameters", (PyCFunction)lad_setparameters, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
363 { "bufsize", (PyCFunction)lad_bufsize, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
364 { "obufcount", (PyCFunction)lad_obufcount, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
365 { "obuffree", (PyCFunction)lad_obuffree, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
366 { "flush", (PyCFunction)lad_flush, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
367 { "close", (PyCFunction)lad_close, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
368 { "fileno", (PyCFunction)lad_fileno, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
369 { NULL, NULL} /* sentinel */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
370 };
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
371
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
372 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
373 lad_getattr(lad_t *xp, char *name)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
374 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
375 return Py_FindMethod(lad_methods, (PyObject *)xp, name);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
376 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
377
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
378 static PyTypeObject Ladtype = {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
379 PyObject_HEAD_INIT(&PyType_Type)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
380 0, /*ob_size*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
381 "linux_audio_device", /*tp_name*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
382 sizeof(lad_t), /*tp_size*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
383 0, /*tp_itemsize*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
384 /* methods */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
385 (destructor)lad_dealloc, /*tp_dealloc*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
386 0, /*tp_print*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
387 (getattrfunc)lad_getattr, /*tp_getattr*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
388 0, /*tp_setattr*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
389 0, /*tp_compare*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
390 0, /*tp_repr*/
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
391 };
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
392
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
393 static PyObject *
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
394 ladopen(PyObject *self, PyObject *args)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
395 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
396 return (PyObject *)newladobject(args);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
397 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
398
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
399 static PyMethodDef linuxaudiodev_methods[] = {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
400 { "open", ladopen, 1 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
401 { 0, 0 },
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
402 };
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
403
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
404 static int
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
405 ins(PyObject *d, char *symbol, long value)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
406 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
407 PyObject* v = PyInt_FromLong(value);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
408 if (!v || PyDict_SetItemString(d, symbol, v) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
409 return -1; /* triggers fatal error */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
410
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
411 Py_DECREF(v);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
412 return 0;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
413 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
414 void
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
415 initlinuxaudiodev()
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
416 {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
417 PyObject *m, *d, *x;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
418
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
419 m = Py_InitModule("linuxaudiodev", linuxaudiodev_methods);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
420 d = PyModule_GetDict(m);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
421
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
422 LinuxAudioError = PyErr_NewException("linuxaudiodev.error", NULL, NULL);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
423 if (LinuxAudioError)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
424 PyDict_SetItemString(d, "error", LinuxAudioError);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
425
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
426 x = PyInt_FromLong((long) AFMT_MU_LAW);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
427 if (x == NULL || PyDict_SetItemString(d, "AFMT_MU_LAW", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
428 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
429 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
430
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
431 x = PyInt_FromLong((long) AFMT_U8);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
432 if (x == NULL || PyDict_SetItemString(d, "AFMT_U8", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
433 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
434 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
435
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
436 x = PyInt_FromLong((long) AFMT_S8);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
437 if (x == NULL || PyDict_SetItemString(d, "AFMT_S8", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
438 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
439 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
440
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
441 x = PyInt_FromLong((long) AFMT_U16_BE);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
442 if (x == NULL || PyDict_SetItemString(d, "AFMT_U16_BE", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
443 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
444 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
445
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
446 x = PyInt_FromLong((long) AFMT_U16_LE);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
447 if (x == NULL || PyDict_SetItemString(d, "AFMT_U16_LE", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
448 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
449 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
450
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
451 x = PyInt_FromLong((long) AFMT_S16_BE);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
452 if (x == NULL || PyDict_SetItemString(d, "AFMT_S16_BE", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
453 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
454 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
455
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
456 x = PyInt_FromLong((long) AFMT_S16_LE);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
457 if (x == NULL || PyDict_SetItemString(d, "AFMT_S16_LE", x) < 0)
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
458 goto error;
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
459 Py_DECREF(x);
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
460
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
461 /* Check for errors */
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
462 if (PyErr_Occurred()) {
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
463 error:
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
464 Py_FatalError("can't initialize module linuxaudiodev");
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
465 }
e75ac292ef4c This module's name should be linuxaudio*dev*.c
Guido van Rossum <guido@python.org>
parents:
diff changeset
466 }