1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
#ifndef foopolyplibsimplehfoo
#define foopolyplibsimplehfoo
/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <sys/types.h>
#include "sample.h"
#include "polyplib-def.h"
#include "cdecl.h"
/** \file
* A simple but limited synchronous playback and recording
* API. This is synchronouse, simplified wrapper around the standard
* asynchronous API. */
/** \example pacat-simple.c
* A simple playback tool using the simple API */
/** \example parec-simple.c
* A simple recording tool using the simple API */
PA_C_DECL_BEGIN
/** \struct pa_simple
* An opaque simple connection object */
struct pa_simple;
/** Create a new connection to the server */
struct pa_simple* pa_simple_new(
const char *server, /**< Server name, or NULL for default */
const char *name, /**< A descriptive name for this client (application name, ...) */
enum pa_stream_direction dir, /**< Open this stream for recording or playback? */
const char *dev, /**< Sink (resp. source) name, or NULL for default */
const char *stream_name, /**< A descriptive name for this client (application name, song title, ...) */
const struct pa_sample_spec *ss, /**< The sample type to use */
const struct pa_buffer_attr *attr, /**< Buffering attributes, or NULL for default */
pa_volume_t volume, /**< Initial volume. Only for playback streams. \since 0.5 */
int *error /**< A pointer where the error code is stored when the routine returns NULL. It is OK to pass NULL here. */
);
/** Close and free the connection to the server. The connection objects becomes invalid when this is called. */
void pa_simple_free(struct pa_simple *s);
/** Write some data to the server */
int pa_simple_write(struct pa_simple *s, const void*data, size_t length, int *error);
/** Wait until all data already written is played by the daemon */
int pa_simple_drain(struct pa_simple *s, int *error);
/** Read some data from the server */
int pa_simple_read(struct pa_simple *s, void*data, size_t length, int *error);
/** Return the playback latency. \since 0.5 */
pa_usec_t pa_simple_get_playback_latency(struct pa_simple *s, int *perror);
/** Flush the playback buffer. \since 0.5 */
int pa_simple_flush(struct pa_simple *s, int *perror);
PA_C_DECL_END
#endif
|
