PipeWire  1.4.1
alac-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_ALAC_UTILS_H
6 #define SPA_AUDIO_ALAC_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 #ifndef SPA_API_AUDIO_ALAC_UTILS
23  #ifdef SPA_API_IMPL
24  #define SPA_API_AUDIO_ALAC_UTILS SPA_API_IMPL
25  #else
26  #define SPA_API_AUDIO_ALAC_UTILS static inline
27  #endif
28 #endif
29 
30 
32 spa_format_audio_alac_parse(const struct spa_pod *format, struct spa_audio_info_alac *info)
33 {
34  int res;
35  res = spa_pod_parse_object(format,
39  return res;
40 }
41 
43 spa_format_audio_alac_build(struct spa_pod_builder *builder, uint32_t id,
44  const struct spa_audio_info_alac *info)
45 {
46  struct spa_pod_frame f;
48  spa_pod_builder_add(builder,
52  0);
53  if (info->rate != 0)
54  spa_pod_builder_add(builder,
56  if (info->channels != 0)
57  spa_pod_builder_add(builder,
59  return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
60 }
61 
66 #ifdef __cplusplus
67 } /* extern "C" */
68 #endif
69 
70 #endif /* SPA_AUDIO_ALAC_UTILS_H */
spa/pod/builder.h
uint32_t int int res
Definition: core.h:433
SPA_API_AUDIO_ALAC_UTILS int spa_format_audio_alac_parse(const struct spa_pod *format, struct spa_audio_info_alac *info)
Definition: alac-utils.h:39
#define SPA_API_AUDIO_ALAC_UTILS
Definition: alac-utils.h:33
SPA_API_AUDIO_ALAC_UTILS struct spa_pod * spa_format_audio_alac_build(struct spa_pod_builder *builder, uint32_t id, const struct spa_audio_info_alac *info)
Definition: alac-utils.h:50
@ 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_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_alac
Definition: format.h:56
@ SPA_AUDIO_FORMAT_ENCODED
Definition: raw.h:31
SPA_API_POD_BUILDER int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition: builder.h:666
#define SPA_POD_Id(val)
Definition: vararg.h:49
SPA_API_POD_BUILDER 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:454
#define SPA_POD_OPT_Int(val)
Definition: parser.h:532
#define spa_pod_parse_object(pod, type, id,...)
Definition: parser.h:586
#define SPA_POD_Int(val)
Definition: vararg.h:54
SPA_API_POD_BUILDER void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition: builder.h:187
@ SPA_TYPE_OBJECT_Format
Definition: type.h:87
spa/param/audio/format.h
spa/pod/parser.h
Definition: alac.h:24
uint32_t rate
Definition: alac.h:25
uint32_t channels
Definition: alac.h:26
Definition: builder.h:63
Definition: iter.h:37
Definition: pod.h:43