PipeWire: spa/param/audio/amr-utils.h Source File

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amr-utils.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2023 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_AUDIO_AMR_UTILS_H
6#define SPA_AUDIO_AMR_UTILS_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
17#include <spa/pod/parser.h>
18#include <spa/pod/builder.h>
19#include <spa/param/audio/format.h>
20#include <spa/param/format-utils.h>
21
22static inline int
23 spa_format_audio_amr_parse(const struct spa_pod *format, struct spa_audio_info_amr *info)
24{
25 int res;
26 res = spa_pod_parse_object(format,
27 SPA_TYPE_OBJECT_Format, NULL,
28 SPA_FORMAT_AUDIO_rate, SPA_POD_OPT_Int(&info->rate),
29 SPA_FORMAT_AUDIO_channels, SPA_POD_OPT_Int(&info->channels),
30 SPA_FORMAT_AUDIO_AMR_bandMode, SPA_POD_OPT_Id(&info->band_mode));
31 return res;
32}
33
34static inline struct spa_pod *
35 spa_format_audio_amr_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_amr *info)
36{
37 struct spa_pod_frame f;
38 spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
39 spa_pod_builder_add(builder,
40 SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
41 SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_amr),
42 SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_ENCODED),
43 0);
44 if (info->rate != 0)
45 spa_pod_builder_add(builder,
46 SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
47 if (info->channels != 0)
48 spa_pod_builder_add(builder,
49 SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
50 if (info->band_mode != 0)
51 spa_pod_builder_add(builder,
52 SPA_FORMAT_AUDIO_AMR_bandMode, SPA_POD_Id(info->band_mode), 0);
53 return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
54}
55
60#ifdef __cplusplus
61} /* extern "C" */
62#endif
63
64#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:28
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:40
SPA_MEDIA_TYPE_audio
@ SPA_MEDIA_TYPE_audio
Definition format.h:27
SPA_FORMAT_AUDIO_AMR_bandMode
@ SPA_FORMAT_AUDIO_AMR_bandMode
AMR band mode (Id enum spa_audio_amr_band_mode)
Definition format.h:115
SPA_FORMAT_mediaType
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition format.h:93
SPA_FORMAT_AUDIO_rate
@ SPA_FORMAT_AUDIO_rate
sample rate (Int)
Definition format.h:100
SPA_FORMAT_mediaSubtype
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition format.h:94
SPA_FORMAT_AUDIO_format
@ SPA_FORMAT_AUDIO_format
audio format, (Id enum spa_audio_format)
Definition format.h:98
SPA_FORMAT_AUDIO_channels
@ SPA_FORMAT_AUDIO_channels
number of audio channels (Int)
Definition format.h:101
SPA_MEDIA_SUBTYPE_amr
@ SPA_MEDIA_SUBTYPE_amr
Definition format.h:54
SPA_AUDIO_FORMAT_ENCODED
@ SPA_AUDIO_FORMAT_ENCODED
Definition raw.h:33
spa_pod_builder_add
static int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition builder.h:647
SPA_POD_Id
#define SPA_POD_Id(val)
Definition vararg.h:49
spa_pod_builder_pop
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition builder.h:168
SPA_POD_OPT_Int
#define SPA_POD_OPT_Int(val)
Definition parser.h:522
SPA_POD_OPT_Id
#define SPA_POD_OPT_Id(val)
Definition parser.h:520
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:435
spa_pod_parse_object
#define spa_pod_parse_object(pod, type, id,...)
Definition parser.h:576
SPA_POD_Int
#define SPA_POD_Int(val)
Definition vararg.h:54
SPA_TYPE_OBJECT_Format
@ SPA_TYPE_OBJECT_Format
Definition type.h:76
format.h
spa/param/audio/format.h
parser.h
spa/pod/parser.h
spa_audio_info_amr
Definition amr.h:24
spa_pod_builder
Definition builder.h:53
spa_pod_frame
Definition iter.h:27
spa_pod
Definition pod.h:43
spa_pod::type
uint32_t type
Definition pod.h:45