PipeWire  0.3.66
audio/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
9 extern "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 
22 static inline int
23 spa_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;
28  res = spa_pod_parse_object(format,
34  if (position == NULL ||
37 
38  return res;
39 }
40 
41 static inline struct spa_pod *
42 spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_raw *info)
43 {
44  struct spa_pod_frame f;
46  spa_pod_builder_add(builder,
49  0);
50  if (info->format != SPA_AUDIO_FORMAT_UNKNOWN)
51  spa_pod_builder_add(builder,
53  if (info->rate != 0)
54  spa_pod_builder_add(builder,
56  if (info->channels != 0) {
57  spa_pod_builder_add(builder,
61  SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id,
62  info->channels, info->position), 0);
63  }
64  }
65  return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
66 }
67 
72 #ifdef __cplusplus
73 } /* extern "C" */
74 #endif
75 
76 #endif /* SPA_AUDIO_RAW_UTILS_H */
spa/pod/builder.h
static struct spa_pod * spa_format_audio_raw_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_raw *info)
Definition: audio/raw-utils.h:47
static int spa_format_audio_raw_parse(const struct spa_pod *format, struct spa_audio_info_raw *info)
Definition: audio/raw-utils.h:28
#define SPA_AUDIO_FLAG_UNPOSITIONED
Definition: audio/raw.h:276
#define SPA_AUDIO_MAX_CHANNELS
Definition: audio/raw.h:29
@ SPA_MEDIA_TYPE_audio
Definition: param/format.h:27
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition: param/format.h:92
@ SPA_FORMAT_AUDIO_position
channel positions (Id enum spa_audio_position)
Definition: param/format.h:101
@ SPA_FORMAT_AUDIO_rate
sample rate (Int)
Definition: param/format.h:99
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition: param/format.h:93
@ SPA_FORMAT_AUDIO_format
audio format, (Id enum spa_audio_format)
Definition: param/format.h:97
@ SPA_FORMAT_AUDIO_channels
number of audio channels (Int)
Definition: param/format.h:100
@ SPA_MEDIA_SUBTYPE_raw
Definition: param/format.h:38
@ SPA_AUDIO_FORMAT_UNKNOWN
Definition: audio/raw.h:32
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition: builder.h:168
#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:329
#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: spa/include/spa/utils/type.h:33
@ SPA_TYPE_OBJECT_Format
Definition: spa/include/spa/utils/type.h:76
#define SPA_FLAG_SET(field, flag)
Definition: defs.h:79
#define SPA_FLAG_IS_SET(field, flag)
Definition: defs.h:76
spa/param/audio/format.h
spa/pod/parser.h
Audio information description.
Definition: audio/raw.h:278
enum spa_audio_format format
Definition: audio/raw.h:279
uint32_t channels
Definition: audio/raw.h:282
uint32_t flags
Definition: audio/raw.h:280
uint32_t position[SPA_AUDIO_MAX_CHANNELS]
Definition: audio/raw.h:283
uint32_t rate
Definition: audio/raw.h:281
Definition: builder.h:53
Definition: iter.h:27
Definition: pod/pod.h:43