source: roaraudio/libroarpulse/simple.c @ 1608:41f671214d02

Last change on this file since 1608:41f671214d02 was 1171:02f540634383, checked in by phi, 15 years ago

use fsync() if there is no fdatasync()

File size: 5.1 KB
Line 
1//simple.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008
5 *  The code (may) include prototypes and comments (and maybe
6 *  other code fragements) from libpulse*. They are mostly copyrighted by:
7 *  Lennart Poettering <poettering@users.sourceforge.net> and
8 *  Pierre Ossman <drzeus@drzeus.cx>
9 *
10 *  This file is part of libroarpulse a part of RoarAudio,
11 *  a cross-platform sound system for both, home and professional use.
12 *  See README for details.
13 *
14 *  This file is free software; you can redistribute it and/or modify
15 *  it under the terms of the GNU General Public License version 3
16 *  as published by the Free Software Foundation.
17 *
18 *  RoarAudio is distributed in the hope that it will be useful,
19 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
20 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 *  GNU General Public License for more details.
22 *
23 *  You should have received a copy of the GNU General Public License
24 *  along with this software; see the file COPYING.  If not, write to
25 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
26 *
27 *  NOTE for everyone want's to change something and send patches:
28 *  read README and HACKING! There a addition information on
29 *  the license of this document you need to read before you send
30 *  any patches.
31 *
32 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
33 *  or libpulse*:
34 *  The libs libroaresd, libroararts and libroarpulse link this libroar
35 *  and are therefore GPL. Because of this it may be illigal to use
36 *  them with any software that uses libesd, libartsc or libpulse*.
37 */
38
39#include <libroarpulse/libroarpulse.h>
40
41/** Create a new connection to the server */
42pa_simple* pa_simple_new(
43    const char *server,                 /**< Server name, or NULL for default */
44    const char *name,                   /**< A descriptive name for this client (application name, ...) */
45    pa_stream_direction_t dir,          /**< Open this stream for recording or playback? */
46    const char *dev,                    /**< Sink (resp. source) name, or NULL for default */
47    const char *stream_name,            /**< A descriptive name for this client (application name, song title, ...) */
48    const pa_sample_spec *ss,           /**< The sample type to use */
49    const pa_channel_map *map,          /**< The channel map to use, or NULL for default */
50    const pa_buffer_attr *attr,         /**< Buffering attributes, or NULL for default */
51    int *error                          /**< A pointer where the error code is stored when the routine returns NULL. It is OK to pass NULL here. */
52    ) {
53 struct roarpulse_simple * s = malloc(sizeof(struct roarpulse_simple));
54 int roar_dir;
55 int codec = -1;
56 struct roar_meta meta;
57
58 if ( !s )
59  return NULL;
60
61 if ( dir == PA_STREAM_PLAYBACK ) {
62  roar_dir = ROAR_DIR_PLAY;
63 } else if ( dir == PA_STREAM_RECORD ) {
64  roar_dir = ROAR_DIR_RECORD;
65 } else {
66  free(s);
67  return NULL;
68 }
69
70 codec = roar_codec_pulse2roar(ss->format);
71
72 if ( !server )
73  server = getenv("PULSE_SERVER");
74
75 if ( roar_simple_connect(&(s->con), (char*)server, (char*)name) == -1 ) {
76  free(s);
77  return NULL;
78 }
79
80 s->data_fh = roar_simple_new_stream_obj(&(s->con), &(s->stream), ss->rate, ss->channels,
81                  16 /* does PulseAudio support something diffrent? */, codec, roar_dir);
82
83 if ( s->data_fh == -1 ) {
84  roar_disconnect(&(s->con));
85  free(s);
86  return NULL;
87 }
88
89 if ( stream_name && stream_name[0] != 0 ) {
90  meta.value  = (char*)stream_name;
91  meta.key[0] = 0;
92  meta.type   = ROAR_META_TYPE_DESCRIPTION;
93
94  roar_stream_meta_set(&(s->con), &(s->stream), ROAR_META_MODE_SET, &meta);
95 }
96
97 return (pa_simple*) s;
98}
99
100/** Close and free the connection to the server. The connection objects becomes invalid when this is called. */
101void pa_simple_free(pa_simple *s) {
102 struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
103 if ( !s )
104  return;
105
106 close(ss->data_fh);
107 roar_disconnect(&(ss->con));
108
109 free(s);
110}
111
112/** Write some data to the server */
113int pa_simple_write(pa_simple *s, const void*data, size_t length, int *error) {
114 struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
115 if ( !s )
116  return -1;
117
118 return write(ss->data_fh, (char*) data, length);
119}
120
121/** Wait until all data already written is played by the daemon */
122int pa_simple_drain(pa_simple *s, int *error) {
123// struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
124 if ( !s )
125  return -1;
126
127 pa_simple_flush(s, NULL);
128
129 return -1;
130}
131
132/** Read some data from the server */
133int pa_simple_read(pa_simple *s, void*data, size_t length, int *error) {
134 struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
135 if ( !s )
136  return -1;
137
138 return read(ss->data_fh, data, length);
139}
140
141/** Return the playback latency. \since 0.5 */
142pa_usec_t pa_simple_get_latency(pa_simple *s, int *error) {
143 struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
144 if ( !s )
145  return -1;
146
147 return -1;
148}
149
150/** Flush the playback buffer. \since 0.5 */
151int pa_simple_flush(pa_simple *s, int *error) {
152 struct roarpulse_simple * ss = (struct roarpulse_simple*) s;
153 if ( !s )
154  return -1;
155
156 return ROAR_FDATASYNC(ss->data_fh);
157}
158
159//ll
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