2 * Copyright (c) 2012, Intel Corporation
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * * Neither the name of Intel Corporation nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #ifndef __SRS_DAEMON_AUDIOBUF_H__
31 #define __SRS_DAEMON_AUDIOBUF_H__
33 #include <murphy/common/refcnt.h>
34 #include <pulse/sample.h>
41 #define MAP(type) SRS_AUDIO_##type = PA_SAMPLE_##type
62 * a reference-counted audio buffer
66 mrp_refcnt_t refcnt; /* reference count */
67 srs_audioformat_t format; /* audio format */
68 uint32_t rate; /* sample rate */
69 uint8_t channels; /* number of channels */
70 size_t samples; /* amount of sample data */
71 void *data; /* actual sample data */
74 /** Create a new audio buffer. */
75 srs_audiobuf_t *srs_create_audiobuf(srs_audioformat_t format, uint32_t rate,
76 uint8_t channels, size_t samples,
79 /** Add a reference to the given audio buffer. */
80 srs_audiobuf_t *srs_ref_audiobuf(srs_audiobuf_t *buf);
82 /** Remove a reference from the given audio buffer, potentially freeing it. */
83 void srs_unref_audiobuf(srs_audiobuf_t *buf);
85 #endif /* __SRS_DAEMON_AUDIOBUF_H__ */