PipeWire 1.2.6
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raw-utils.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_AUDIO_RAW_UTILS_H
6#define SPA_AUDIO_RAW_UTILS_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
17#include <spa/pod/parser.h>
18#include <spa/pod/builder.h>
21
22static inline int
23spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_raw *info)
24{
25 struct spa_pod *position = NULL;
26 int res;
27 info->flags = 0;
34 if (position == NULL ||
35 !spa_pod_copy_array(position, SPA_TYPE_Id, info->position, SPA_AUDIO_MAX_CHANNELS))
37
38 return res;
39}
40
41static inline struct spa_pod *
43 const struct spa_audio_info_raw *info)
44{
45 struct spa_pod_frame f;
50 0);
51 if (info->format != SPA_AUDIO_FORMAT_UNKNOWN)
52 spa_pod_builder_add(builder,
53 SPA_FORMAT_AUDIO_format, SPA_POD_Id(info->format), 0);
54 if (info->rate != 0)
55 spa_pod_builder_add(builder,
56 SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
57 if (info->channels != 0) {
58 spa_pod_builder_add(builder,
59 SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
62 SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id,
63 info->channels, info->position), 0);
64 }
65 }
66 return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
67}
68
73#ifdef __cplusplus
74} /* extern "C" */
75#endif
76
77#endif /* SPA_AUDIO_RAW_UTILS_H */
spa/pod/builder.h
static int spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_raw *info)
Definition raw-utils.h:28
static struct spa_pod * spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, const struct spa_audio_info_raw *info)
Definition raw-utils.h:47
#define SPA_AUDIO_FLAG_UNPOSITIONED
Definition raw.h:282
#define SPA_AUDIO_MAX_CHANNELS
Definition raw.h:29
@ SPA_MEDIA_TYPE_audio
Definition format.h:27
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition format.h:93
@ SPA_FORMAT_AUDIO_position
channel positions (Id enum spa_audio_position)
Definition format.h:102
@ SPA_FORMAT_AUDIO_rate
sample rate (Int)
Definition format.h:100
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition format.h:94
@ SPA_FORMAT_AUDIO_format
audio format, (Id enum spa_audio_format)
Definition format.h:98
@ SPA_FORMAT_AUDIO_channels
number of audio channels (Int)
Definition format.h:101
@ SPA_MEDIA_SUBTYPE_raw
Definition format.h:38
@ SPA_AUDIO_FORMAT_UNKNOWN
Definition raw.h:32
#define SPA_POD_Array(csize, ctype, n_vals, vals)
Definition vararg.h:120
static int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition builder.h:647
#define SPA_POD_Id(val)
Definition vararg.h:49
static uint32_t spa_pod_copy_array(const struct spa_pod *pod, uint32_t type, void *values, uint32_t max_values)
Definition iter.h:335
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition builder.h:168
#define SPA_POD_OPT_Int(val)
Definition parser.h:522
#define SPA_POD_OPT_Id(val)
Definition parser.h:520
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
#define SPA_POD_OPT_Pod(val)
Definition parser.h:546
#define spa_pod_parse_object(pod, type, id,...)
Definition parser.h:576
#define SPA_POD_Int(val)
Definition vararg.h:54
@ SPA_TYPE_Id
Definition type.h:33
@ SPA_TYPE_OBJECT_Format
Definition type.h:76
#define SPA_FLAG_SET(field, flag)
Definition defs.h:93
#define SPA_FLAG_IS_SET(field, flag)
Definition defs.h:90
spa/param/audio/format.h
spa/pod/parser.h
Audio information description.
Definition raw.h:284
Definition builder.h:53
Definition iter.h:27
Definition pod.h:43
uint32_t type
Definition pod.h:45