cpython-lru_cache-weakref: Modules/linuxaudiodev.c annotate

annotate Modules/linuxaudiodev.c @ 16798:258dcafe2d0b legacy-trunk

Gustavo Niemeyer <niemeyer@conectiva.com>: Fixed recno support (keys are integers rather than strings). Work around DB bug that cause stdin to be closed by rnopen() when the DB file needed to exist but did not (no longer segfaults). This closes SF tracker patch #403445. Also wrapped some long lines and added whitespace around operators -- FLD.

author	Fred Drake <fdrake@acm.org>
date	Tue, 27 Feb 2001 18:56:46 +0000
parents	c8205552dde1
children	03ba06247486

rev	line source
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	1 /* Hey Emacs, this is --C--
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	2 ******************************************************************************
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	3 * linuxaudiodev.c -- Linux audio device for python.
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	4 *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	5 * Author : Peter Bosch
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	6 * Created On : Thu Mar 2 21:10:33 2000
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	7 * Last Modified By: Peter Bosch
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	8 * Last Modified On: Fri Mar 24 11:27:00 2000
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	9 * Status : Unknown, Use with caution!
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	10 *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	11 * Unless other notices are present in any part of this file
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	12 * explicitly claiming copyrights for other people and/or
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	13 * organizations, the contents of this file is fully copyright
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	14 * (C) 2000 Peter Bosch, all rights reserved.
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	15 ******************************************************************************
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	16 */
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	17
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	18 #include "Python.h"
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	19 #include "structmember.h"
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	20
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	21 #ifdef HAVE_UNISTD_H
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	22 #include <unistd.h>
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	23 #endif
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	24
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	25 #ifdef HAVE_FCNTL_H
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	26 #include <fcntl.h>
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	27 #else
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	28 #define O_RDONLY 00
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	29 #define O_WRONLY 01
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	30 #endif
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	31
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	32
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	33 #include <sys/ioctl.h>
14306 62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	34 #if defined(linux)
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	35 #include <linux/soundcard.h>
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	36
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	37 typedef unsigned long uint32_t;
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	38
14306 62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	39 #elif defined(__FreeBSD__)
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	40 #include <machine/soundcard.h>
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	41
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	42 #ifndef SNDCTL_DSP_CHANNELS
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	43 #define SNDCTL_DSP_CHANNELS SOUND_PCM_WRITE_CHANNELS
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	44 #endif
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	45
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	46 #endif
62ec0bfd93f8 This module has a poor name, since it can be used under FreeBSD and Jeremy Hylton <jeremy@alum.mit.edu> parents: 14057 diff changeset	47
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	48 typedef struct {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	49 PyObject_HEAD;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	50 int x_fd; /* The open file */
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	51 int x_mode; /* file mode */
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	52 int x_icount; /* Input count */
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	53 int x_ocount; /* Output count */
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	54 uint32_t x_afmts; /* Audio formats supported by hardware*/
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	55 } lad_t;
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	56
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	57 /* XXX several format defined in soundcard.h are not supported,
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	58 including _NE (native endian) options and S32 options
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	59 */
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	60
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	61 static struct {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	62 int a_bps;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	63 uint32_t a_fmt;
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	64 char *a_name;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	65 } audio_types[] = {
15900 1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	66 { 8, AFMT_MU_LAW, "logarithmic mu-law 8-bit audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	67 { 8, AFMT_A_LAW, "logarithmic A-law 8-bit audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	68 { 8, AFMT_U8, "linear unsigned 8-bit audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	69 { 8, AFMT_S8, "linear signed 8-bit audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	70 { 16, AFMT_U16_BE, "linear unsigned 16-bit big-endian audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	71 { 16, AFMT_U16_LE, "linear unsigned 16-bit little-endian audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	72 { 16, AFMT_S16_BE, "linear signed 16-bit big-endian audio" },
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	73 { 16, AFMT_S16_LE, "linear signed 16-bit little-endian audio" },
15958 c8205552dde1 Restore lost AFMT_S16_NE entry. Ka-Ping Yee <ping@zesty.ca> parents: 15900 diff changeset	74 { 16, AFMT_S16_NE, "linear signed 16-bit native-endian audio" },
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	75 };
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	76
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	77 static int n_audio_types = sizeof(audio_types) / sizeof(audio_types[0]);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	78
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	79 staticforward PyTypeObject Ladtype;
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	80
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	81 static PyObject *LinuxAudioError;
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	82
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	83 static lad_t *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	84 newladobject(PyObject *arg)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	85 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	86 lad_t *xp;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	87 int fd, afmts, imode;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	88 char *mode;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	89 char *basedev;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	90
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	91 /* Check arg for r/w/rw */
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	92 if (!PyArg_ParseTuple(arg, "s:open", &mode)) return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	93 if (strcmp(mode, "r") == 0)
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	94 imode = O_RDONLY;
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	95 else if (strcmp(mode, "w") == 0)
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	96 imode = O_WRONLY;
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	97 else {
15900 1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	98 PyErr_SetString(LinuxAudioError, "mode should be 'r' or 'w'");
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	99 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	100 }
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	101
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	102 /* Open the correct device. The base device name comes from the
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	103 * AUDIODEV environment variable first, then /dev/dsp. The
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	104 * control device tacks "ctl" onto the base device name.
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	105 *
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	106 * Note that the only difference between /dev/audio and /dev/dsp
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	107 * is that the former uses logarithmic mu-law encoding and the
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	108 * latter uses 8-bit unsigned encoding.
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	109 */
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	110
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	111 basedev = getenv("AUDIODEV");
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	112 if (!basedev)
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	113 basedev = "/dev/dsp";
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	114
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	115 if ((fd = open(basedev, imode)) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	116 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	117 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	118 }
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	119 if (imode == O_WRONLY && ioctl(fd, SNDCTL_DSP_NONBLOCK, NULL) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	120 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	121 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	122 }
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	123 if (ioctl(fd, SNDCTL_DSP_GETFMTS, &afmts) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	124 PyErr_SetFromErrnoWithFilename(LinuxAudioError, basedev);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	125 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	126 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	127 /* Create and initialize the object */
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	128 if ((xp = PyObject_New(lad_t, &Ladtype)) == NULL) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	129 close(fd);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	130 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	131 }
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	132 xp->x_fd = fd;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	133 xp->x_mode = imode;
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	134 xp->x_icount = xp->x_ocount = 0;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	135 xp->x_afmts = afmts;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	136 return xp;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	137 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	138
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	139 static void
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	140 lad_dealloc(lad_t *xp)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	141 {
14057 ca8dc1bae67d lad_dealloc(): if xp->x_fd == -1, it means the descriptor's already Barry Warsaw <barry@python.org> parents: 13651 diff changeset	142 /* if already closed, don't reclose it */
ca8dc1bae67d lad_dealloc(): if xp->x_fd == -1, it means the descriptor's already Barry Warsaw <barry@python.org> parents: 13651 diff changeset	143 if (xp->x_fd != -1)
ca8dc1bae67d lad_dealloc(): if xp->x_fd == -1, it means the descriptor's already Barry Warsaw <barry@python.org> parents: 13651 diff changeset	144 close(xp->x_fd);
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	145 PyObject_Del(xp);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	146 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	147
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	148 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	149 lad_read(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	150 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	151 int size, count;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	152 char *cp;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	153 PyObject *rv;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	154
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	155 if (!PyArg_ParseTuple(args, "i:read", &size))
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	156 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	157 rv = PyString_FromStringAndSize(NULL, size);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	158 if (rv == NULL)
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	159 return NULL;
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	160 cp = PyString_AS_STRING(rv);
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	161 if ((count = read(self->x_fd, cp, size)) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	162 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	163 Py_DECREF(rv);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	164 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	165 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	166 self->x_icount += count;
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	167 if (_PyString_Resize(&rv, count) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	168 return NULL;
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	169 return rv;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	170 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	171
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	172 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	173 lad_write(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	174 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	175 char *cp;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	176 int rv, size;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	177
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	178 if (!PyArg_ParseTuple(args, "s#:write", &cp, &size))
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	179 return NULL;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	180
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	181 while (size > 0) {
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	182 if ((rv = write(self->x_fd, cp, size)) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	183 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	184 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	185 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	186 self->x_ocount += rv;
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	187 size -= rv;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	188 cp += rv;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	189 }
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	190 Py_INCREF(Py_None);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	191 return Py_None;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	192 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	193
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	194 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	195 lad_close(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	196 {
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	197 if (!PyArg_ParseTuple(args, ":close"))
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	198 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	199
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	200 if (self->x_fd >= 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	201 close(self->x_fd);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	202 self->x_fd = -1;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	203 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	204 Py_INCREF(Py_None);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	205 return Py_None;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	206 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	207
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	208 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	209 lad_fileno(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	210 {
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	211 if (!PyArg_ParseTuple(args, ":fileno"))
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	212 return NULL;
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	213 return PyInt_FromLong(self->x_fd);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	214 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	215
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	216 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	217 lad_setparameters(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	218 {
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	219 int rate, ssize, nchannels, n, fmt, emulate=0;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	220
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	221 if (!PyArg_ParseTuple(args, "iiii\|i:setparameters",
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	222 &rate, &ssize, &nchannels, &fmt, &emulate))
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	223 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	224
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	225 if (rate < 0) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	226 PyErr_Format(PyExc_ValueError, "expected rate >= 0, not %d",
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	227 rate);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	228 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	229 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	230 if (ssize < 0) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	231 PyErr_Format(PyExc_ValueError, "expected sample size >= 0, not %d",
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	232 ssize);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	233 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	234 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	235 if (nchannels != 1 && nchannels != 2) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	236 PyErr_Format(PyExc_ValueError, "nchannels must be 1 or 2, not %d",
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	237 nchannels);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	238 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	239 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	240
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	241 if (ioctl(self->x_fd, SNDCTL_DSP_SPEED, &rate) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	242 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	243 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	244 }
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	245 if (ioctl(self->x_fd, SNDCTL_DSP_CHANNELS, &nchannels) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	246 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	247 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	248 }
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	249
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	250 for (n = 0; n < n_audio_types; n++)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	251 if (fmt == audio_types[n].a_fmt)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	252 break;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	253 if (n == n_audio_types) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	254 PyErr_Format(PyExc_ValueError, "unknown audio encoding: %d", fmt);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	255 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	256 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	257 if (audio_types[n].a_bps != ssize) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	258 PyErr_Format(PyExc_ValueError,
15900 1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	259 "for %s, expected sample size %d, not %d",
1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	260 audio_types[n].a_name, audio_types[n].a_bps, ssize);
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	261 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	262 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	263
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	264 if (emulate == 0) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	265 if ((self->x_afmts & audio_types[n].a_fmt) == 0) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	266 PyErr_Format(PyExc_ValueError,
15900 1129e16a11df better format names and error messages Ka-Ping Yee <ping@zesty.ca> parents: 15095 diff changeset	267 "%s format not supported by device",
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	268 audio_types[n].a_name);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	269 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	270 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	271 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	272 if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT,
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	273 &audio_types[n].a_fmt) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	274 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	275 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	276 }
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	277
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	278 Py_INCREF(Py_None);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	279 return Py_None;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	280 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	281
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	282 static int
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	283 _ssize(lad_t self, int nchannels, int *ssize)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	284 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	285 int fmt;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	286
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	287 fmt = 0;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	288 if (ioctl(self->x_fd, SNDCTL_DSP_SETFMT, &fmt) < 0)
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	289 return -errno;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	290
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	291 switch (fmt) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	292 case AFMT_MU_LAW:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	293 case AFMT_A_LAW:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	294 case AFMT_U8:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	295 case AFMT_S8:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	296 *ssize = sizeof(char);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	297 break;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	298 case AFMT_S16_LE:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	299 case AFMT_S16_BE:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	300 case AFMT_U16_LE:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	301 case AFMT_U16_BE:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	302 *ssize = sizeof(short);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	303 break;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	304 case AFMT_MPEG:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	305 case AFMT_IMA_ADPCM:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	306 default:
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	307 return -EOPNOTSUPP;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	308 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	309 *nchannels = 0;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	310 if (ioctl(self->x_fd, SNDCTL_DSP_CHANNELS, nchannels) < 0)
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	311 return -errno;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	312 return 0;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	313 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	314
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	315
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	316 /* bufsize returns the size of the hardware audio buffer in number
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	317 of samples */
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	318 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	319 lad_bufsize(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	320 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	321 audio_buf_info ai;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	322 int nchannels, ssize;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	323
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	324 if (!PyArg_ParseTuple(args, ":bufsize")) return NULL;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	325
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	326 if (_ssize(self, &nchannels, &ssize) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	327 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	328 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	329 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	330 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	331 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	332 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	333 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	334 return PyInt_FromLong((ai.fragstotal * ai.fragsize) / (nchannels * ssize));
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	335 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	336
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	337 /* obufcount returns the number of samples that are available in the
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	338 hardware for playing */
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	339 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	340 lad_obufcount(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	341 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	342 audio_buf_info ai;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	343 int nchannels, ssize;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	344
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	345 if (!PyArg_ParseTuple(args, ":obufcount"))
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	346 return NULL;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	347
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	348 if (_ssize(self, &nchannels, &ssize) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	349 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	350 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	351 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	352 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	353 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	354 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	355 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	356 return PyInt_FromLong((ai.fragstotal * ai.fragsize - ai.bytes) /
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	357 (ssize * nchannels));
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	358 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	359
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	360 /* obufcount returns the number of samples that can be played without
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	361 blocking */
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	362 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	363 lad_obuffree(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	364 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	365 audio_buf_info ai;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	366 int nchannels, ssize;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	367
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	368 if (!PyArg_ParseTuple(args, ":obuffree"))
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	369 return NULL;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	370
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	371 if (_ssize(self, &nchannels, &ssize) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	372 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	373 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	374 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	375 if (ioctl(self->x_fd, SNDCTL_DSP_GETOSPACE, &ai) < 0) {
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	376 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	377 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	378 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	379 return PyInt_FromLong(ai.bytes / (ssize * nchannels));
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	380 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	381
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	382 /* Flush the device */
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	383 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	384 lad_flush(lad_t self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	385 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	386 if (!PyArg_ParseTuple(args, ":flush")) return NULL;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	387
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	388 if (ioctl(self->x_fd, SNDCTL_DSP_SYNC, NULL) == -1) {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	389 PyErr_SetFromErrno(LinuxAudioError);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	390 return NULL;
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	391 }
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	392 Py_INCREF(Py_None);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	393 return Py_None;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	394 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	395
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	396 static PyObject *
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	397 lad_getptr(lad_t self, PyObject args)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	398 {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	399 count_info info;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	400 int req;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	401
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	402 if (!PyArg_ParseTuple(args, ":getptr"))
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	403 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	404
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	405 if (self->x_mode == O_RDONLY)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	406 req = SNDCTL_DSP_GETIPTR;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	407 else
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	408 req = SNDCTL_DSP_GETOPTR;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	409 if (ioctl(self->x_fd, req, &info) == -1) {
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	410 PyErr_SetFromErrno(LinuxAudioError);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	411 return NULL;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	412 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	413 return Py_BuildValue("iii", info.bytes, info.blocks, info.ptr);
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	414 }
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	415
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	416 static PyMethodDef lad_methods[] = {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	417 { "read", (PyCFunction)lad_read, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	418 { "write", (PyCFunction)lad_write, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	419 { "setparameters", (PyCFunction)lad_setparameters, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	420 { "bufsize", (PyCFunction)lad_bufsize, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	421 { "obufcount", (PyCFunction)lad_obufcount, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	422 { "obuffree", (PyCFunction)lad_obuffree, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	423 { "flush", (PyCFunction)lad_flush, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	424 { "close", (PyCFunction)lad_close, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	425 { "fileno", (PyCFunction)lad_fileno, METH_VARARGS },
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	426 { "getptr", (PyCFunction)lad_getptr, METH_VARARGS },
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	427 { NULL, NULL} /* sentinel */
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	428 };
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	429
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	430 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	431 lad_getattr(lad_t xp, char name)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	432 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	433 return Py_FindMethod(lad_methods, (PyObject *)xp, name);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	434 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	435
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	436 static PyTypeObject Ladtype = {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	437 PyObject_HEAD_INIT(&PyType_Type)
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	438 0, /ob_size/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	439 "linux_audio_device", /tp_name/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	440 sizeof(lad_t), /tp_size/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	441 0, /tp_itemsize/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	442 /* methods */
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	443 (destructor)lad_dealloc, /tp_dealloc/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	444 0, /tp_print/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	445 (getattrfunc)lad_getattr, /tp_getattr/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	446 0, /tp_setattr/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	447 0, /tp_compare/
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	448 0, /tp_repr/
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	449 };
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	450
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	451 static PyObject *
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	452 ladopen(PyObject self, PyObject args)
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	453 {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	454 return (PyObject *)newladobject(args);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	455 }
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	456
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	457 static PyMethodDef linuxaudiodev_methods[] = {
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	458 { "open", ladopen, METH_VARARGS },
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	459 { 0, 0 },
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	460 };
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	461
e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	462 void
13651 8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)', Thomas Wouters <thomas@python.org> parents: 13543 diff changeset	463 initlinuxaudiodev(void)
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	464 {
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	465 PyObject *m;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	466
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	467 m = Py_InitModule("linuxaudiodev", linuxaudiodev_methods);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	468
13427 618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	469 LinuxAudioError = PyErr_NewException("linuxaudiodev.error", NULL, NULL);
618a7280f6be Add method names to PyArg_ParseTuple() calls for better error messages. Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	470 if (LinuxAudioError)
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	471 PyModule_AddObject(m, "error", LinuxAudioError);
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	472
15062 675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	473 if (PyModule_AddIntConstant(m, "AFMT_MU_LAW", (long)AFMT_MU_LAW) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	474 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	475 if (PyModule_AddIntConstant(m, "AFMT_A_LAW", (long)AFMT_A_LAW) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	476 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	477 if (PyModule_AddIntConstant(m, "AFMT_U8", (long)AFMT_U8) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	478 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	479 if (PyModule_AddIntConstant(m, "AFMT_S8", (long)AFMT_S8) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	480 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	481 if (PyModule_AddIntConstant(m, "AFMT_U16_BE", (long)AFMT_U16_BE) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	482 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	483 if (PyModule_AddIntConstant(m, "AFMT_U16_LE", (long)AFMT_U16_LE) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	484 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	485 if (PyModule_AddIntConstant(m, "AFMT_S16_BE", (long)AFMT_S16_BE) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	486 return;
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	487 if (PyModule_AddIntConstant(m, "AFMT_S16_LE", (long)AFMT_S16_LE) == -1)
675748378c81 test_linuxaudio: Jeremy Hylton <jeremy@alum.mit.edu> parents: 14351 diff changeset	488 return;
15095 c199460ccde9 Be consistent in the description of audio formats: <format> <width> Guido van Rossum <guido@python.org> parents: 15062 diff changeset	489 if (PyModule_AddIntConstant(m, "AFMT_S16_NE", (long)AFMT_S16_NE) == -1)
c199460ccde9 Be consistent in the description of audio formats: <format> <width> Guido van Rossum <guido@python.org> parents: 15062 diff changeset	490 return;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	491
14346 5397fdf88ec2 Do the absolute minimal amount of modifications to eradicate Barry Warsaw <barry@python.org> parents: 14306 diff changeset	492 return;
12191 e75ac292ef4c This module's name should be linuxaudiodev.c Guido van Rossum <guido@python.org> parents: diff changeset	493 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/linuxaudiodev.c @ 16798:258dcafe2d0b legacy-trunk