PipeWire: wma-utils.h Source File

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wma-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_WMA_UTILS_H
6#define SPA_AUDIO_WMA_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_wma_parse(const struct spa_pod *format, struct spa_audio_info_wma *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_bitrate, SPA_POD_OPT_Int(&info->bitrate),
31 SPA_FORMAT_AUDIO_blockAlign, SPA_POD_OPT_Int(&info->block_align),
32 SPA_FORMAT_AUDIO_WMA_profile, SPA_POD_OPT_Id(&info->profile));
33 return res;
34}
35
36static inline struct spa_pod *
37 spa_format_audio_wma_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_wma *info)
38{
39 struct spa_pod_frame f;
40 spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
41 spa_pod_builder_add(builder,
42 SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
43 SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_wma),
44 SPA_FORMAT_AUDIO_format, SPA_POD_Id(SPA_AUDIO_FORMAT_ENCODED),
45 0);
46 if (info->rate != 0)
47 spa_pod_builder_add(builder,
48 SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
49 if (info->channels != 0)
50 spa_pod_builder_add(builder,
51 SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
52 if (info->bitrate != 0)
53 spa_pod_builder_add(builder,
54 SPA_FORMAT_AUDIO_bitrate, SPA_POD_Int(info->bitrate), 0);
55 if (info->block_align != 0)
56 spa_pod_builder_add(builder,
57 SPA_FORMAT_AUDIO_blockAlign, SPA_POD_Int(info->block_align), 0);
58 if (info->profile != 0)
59 spa_pod_builder_add(builder,
60 SPA_FORMAT_AUDIO_WMA_profile, SPA_POD_Id(info->profile), 0);
61
62 return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
63}
64
69#ifdef __cplusplus
70} /* extern "C" */
71#endif
72
73#endif /* SPA_AUDIO_WMA_UTILS_H */
builder.h
spa/pod/builder.h
format-utils.h
spa_format_audio_wma_parse
static int spa_format_audio_wma_parse(const struct spa_pod *format, struct spa_audio_info_wma *info)
Definition wma-utils.h:28
spa_format_audio_wma_build
static struct spa_pod * spa_format_audio_wma_build(struct spa_pod_builder *builder, uint32_t id, struct spa_audio_info_wma *info)
Definition wma-utils.h:42
SPA_MEDIA_TYPE_audio
@ SPA_MEDIA_TYPE_audio
Definition param/format.h:27
SPA_FORMAT_AUDIO_blockAlign
@ SPA_FORMAT_AUDIO_blockAlign
audio data block alignment (Int)
Definition param/format.h:109
SPA_FORMAT_mediaType
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition param/format.h:93
SPA_FORMAT_AUDIO_rate
@ SPA_FORMAT_AUDIO_rate
sample rate (Int)
Definition param/format.h:100
SPA_FORMAT_AUDIO_bitrate
@ SPA_FORMAT_AUDIO_bitrate
bit rate (Int)
Definition param/format.h:108
SPA_FORMAT_AUDIO_WMA_profile
@ SPA_FORMAT_AUDIO_WMA_profile
WMA profile (Id enum spa_audio_wma_profile)
Definition param/format.h:113
SPA_FORMAT_mediaSubtype
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition param/format.h:94
SPA_FORMAT_AUDIO_format
@ SPA_FORMAT_AUDIO_format
audio format, (Id enum spa_audio_format)
Definition param/format.h:98
SPA_FORMAT_AUDIO_channels
@ SPA_FORMAT_AUDIO_channels
number of audio channels (Int)
Definition param/format.h:101
SPA_MEDIA_SUBTYPE_wma
@ SPA_MEDIA_SUBTYPE_wma
Definition param/format.h:47
SPA_AUDIO_FORMAT_ENCODED
@ SPA_AUDIO_FORMAT_ENCODED
Definition audio/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 spa/include/spa/utils/type.h:76
format.h
spa/param/audio/format.h
parser.h
spa/pod/parser.h
spa_audio_info_wma
Definition wma.h:32
spa_audio_info_wma::channels
uint32_t channels
Definition wma.h:34
spa_audio_info_wma::profile
enum spa_audio_wma_profile profile
Definition wma.h:37
spa_audio_info_wma::block_align
uint32_t block_align
Definition wma.h:36
spa_audio_info_wma::bitrate
uint32_t bitrate
Definition wma.h:35
spa_audio_info_wma::rate
uint32_t rate
Definition wma.h:33
spa_pod_builder
Definition builder.h:53
spa_pod_frame
Definition iter.h:27
spa_pod
Definition pod/pod.h:43