PipeWire: amr-utils.h Source File

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amr-utils.h
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1/* Simple Plugin API
2 *
3 * Copyright © 2023 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_AUDIO_AMR_UTILS_H
26#define SPA_AUDIO_AMR_UTILS_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
37#include <spa/pod/parser.h>
38#include <spa/pod/builder.h>
39#include <spa/param/audio/format.h>
40#include <spa/param/format-utils.h>
41
42static inline int
43 spa_format_audio_amr_parse(const struct spa_pod *format, struct spa_audio_info_amr *info)
44{
45 int res;
46 res = spa_pod_parse_object(format,
47 SPA_TYPE_OBJECT_Format, NULL,
48 SPA_FORMAT_AUDIO_rate, SPA_POD_OPT_Int(&info->rate),
49 SPA_FORMAT_AUDIO_channels, SPA_POD_OPT_Int(&info->channels),
50 SPA_FORMAT_AUDIO_AMR_bandMode, SPA_POD_OPT_Id(&info->band_mode));
51 return res;
52}
53
54static inline struct spa_pod *
55 spa_format_audio_amr_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_amr *info)
56{
57 struct spa_pod_frame f;
58 spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
59 spa_pod_builder_add(builder,
60 SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
61 SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_amr),
62 SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_ENCODED),
63 0);
64 if (info->rate != 0)
65 spa_pod_builder_add(builder,
66 SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
67 if (info->channels != 0)
68 spa_pod_builder_add(builder,
69 SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
70 if (info->band_mode != 0)
71 spa_pod_builder_add(builder,
72 SPA_FORMAT_AUDIO_AMR_bandMode, SPA_POD_Id(info->band_mode), 0);
73 return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
74}
75
80#ifdef __cplusplus
81} /* extern "C" */
82#endif
83
84#endif /* SPA_AUDIO_AMR_UTILS_H */
builder.h
spa/pod/builder.h
format-utils.h
spa_format_audio_amr_parse
static int spa_format_audio_amr_parse(const struct spa_pod *format, struct spa_audio_info_amr *info)
Definition: amr-utils.h:48
spa_format_audio_amr_build
static struct spa_pod * spa_format_audio_amr_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_amr *info)
Definition: amr-utils.h:60
SPA_MEDIA_TYPE_audio
@ SPA_MEDIA_TYPE_audio
Definition: param/format.h:47
SPA_FORMAT_AUDIO_AMR_bandMode
@ SPA_FORMAT_AUDIO_AMR_bandMode
AMR band mode (Id enum spa_audio_amr_band_mode)
Definition: param/format.h:134
SPA_FORMAT_mediaType
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition: param/format.h:112
SPA_FORMAT_AUDIO_rate
@ SPA_FORMAT_AUDIO_rate
sample rate (Int)
Definition: param/format.h:119
SPA_FORMAT_mediaSubtype
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition: param/format.h:113
SPA_FORMAT_AUDIO_format
@ SPA_FORMAT_AUDIO_format
audio format, (Id enum spa_audio_format)
Definition: param/format.h:117
SPA_FORMAT_AUDIO_channels
@ SPA_FORMAT_AUDIO_channels
number of audio channels (Int)
Definition: param/format.h:120
SPA_MEDIA_SUBTYPE_amr
@ SPA_MEDIA_SUBTYPE_amr
Definition: param/format.h:74
SPA_AUDIO_FORMAT_ENCODED
@ SPA_AUDIO_FORMAT_ENCODED
Definition: audio/raw.h:53
spa_pod_builder_add
static int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition: builder.h:667
SPA_POD_Id
#define SPA_POD_Id(val)
Definition: vararg.h:69
spa_pod_builder_pop
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition: builder.h:188
SPA_POD_OPT_Int
#define SPA_POD_OPT_Int(val)
Definition: parser.h:542
SPA_POD_OPT_Id
#define SPA_POD_OPT_Id(val)
Definition: parser.h:540
spa_pod_builder_push_object
static int spa_pod_builder_push_object(struct spa_pod_builder *builder, struct spa_pod_frame *frame, uint32_t type, uint32_t id)
Definition: builder.h:455
spa_pod_parse_object
#define spa_pod_parse_object(pod, type, id,...)
Definition: parser.h:596
SPA_POD_Int
#define SPA_POD_Int(val)
Definition: vararg.h:74
SPA_TYPE_OBJECT_Format
@ SPA_TYPE_OBJECT_Format
Definition: spa/include/spa/utils/type.h:96
format.h
spa/param/audio/format.h
parser.h
spa/pod/parser.h
spa_audio_info_amr
Definition: amr.h:44
spa_audio_info_amr::channels
uint32_t channels
Definition: amr.h:46
spa_audio_info_amr::band_mode
enum spa_audio_amr_band_mode band_mode
Definition: amr.h:47
spa_audio_info_amr::rate
uint32_t rate
Definition: amr.h:45
spa_pod_builder
Definition: builder.h:73
spa_pod_frame
Definition: iter.h:47
spa_pod
Definition: pod/pod.h:63