PipeWire: dsp-utils.h Source File

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video/dsp-utils.h
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1/* Simple Plugin API
2 *
3 * Copyright © 2018 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_VIDEO_DSP_UTILS_H
26#define SPA_VIDEO_DSP_UTILS_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
37#include <spa/pod/parser.h>
38#include <spa/pod/builder.h>
39#include <spa/param/video/dsp.h>
40
41static inline int
42 spa_format_video_dsp_parse(const struct spa_pod *format,
43 struct spa_video_info_dsp *info)
44{
45 info->flags = SPA_VIDEO_FLAG_NONE;
46 if (spa_pod_find_prop (format, NULL, SPA_FORMAT_VIDEO_modifier)) {
47 info->flags |= SPA_VIDEO_FLAG_MODIFIER;
48 }
49
50 return spa_pod_parse_object(format,
51 SPA_TYPE_OBJECT_Format, NULL,
52 SPA_FORMAT_VIDEO_format, SPA_POD_OPT_Id(&info->format),
53 SPA_FORMAT_VIDEO_modifier, SPA_POD_OPT_Long(&info->modifier));
54}
55
56static inline struct spa_pod *
57 spa_format_video_dsp_build(struct spa_pod_builder *builder, uint32_t id,
58 struct spa_video_info_dsp *info)
59{
60 struct spa_pod_frame f;
61 spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
62 spa_pod_builder_add(builder,
63 SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video),
64 SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp),
65 0);
66 if (info->format != SPA_VIDEO_FORMAT_UNKNOWN)
67 spa_pod_builder_add(builder,
68 SPA_FORMAT_VIDEO_format, SPA_POD_Id(info->format), 0);
69 if (info->modifier != 0 || info->flags & SPA_VIDEO_FLAG_MODIFIER)
70 spa_pod_builder_add(builder,
71 SPA_FORMAT_VIDEO_modifier, SPA_POD_Long(info->modifier), 0);
72 return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
73}
74
79#ifdef __cplusplus
80} /* extern "C" */
81#endif
82
83#endif /* SPA_VIDEO_DSP_UTILS_H */
builder.h
spa/pod/builder.h
spa_format_video_dsp_build
static struct spa_pod * spa_format_video_dsp_build(struct spa_pod_builder *builder, uint32_t id, struct spa_video_info_dsp *info)
Definition: video/dsp-utils.h:62
spa_format_video_dsp_parse
static int spa_format_video_dsp_parse(const struct spa_pod *format, struct spa_video_info_dsp *info)
Definition: video/dsp-utils.h:47
SPA_MEDIA_TYPE_video
@ SPA_MEDIA_TYPE_video
Definition: param/format.h:48
SPA_VIDEO_FLAG_MODIFIER
@ SPA_VIDEO_FLAG_MODIFIER
use the format modifier
Definition: video/raw.h:168
SPA_VIDEO_FLAG_NONE
@ SPA_VIDEO_FLAG_NONE
no flags
Definition: video/raw.h:164
SPA_FORMAT_mediaType
@ SPA_FORMAT_mediaType
media type (Id enum spa_media_type)
Definition: param/format.h:112
SPA_FORMAT_VIDEO_modifier
@ SPA_FORMAT_VIDEO_modifier
format modifier (Long) use only with DMA-BUF and omit for other buffer types
Definition: param/format.h:140
SPA_FORMAT_VIDEO_format
@ SPA_FORMAT_VIDEO_format
video format (Id enum spa_video_format)
Definition: param/format.h:139
SPA_FORMAT_mediaSubtype
@ SPA_FORMAT_mediaSubtype
media subtype (Id enum spa_media_subtype)
Definition: param/format.h:113
SPA_MEDIA_SUBTYPE_dsp
@ SPA_MEDIA_SUBTYPE_dsp
Definition: param/format.h:59
SPA_VIDEO_FORMAT_UNKNOWN
@ SPA_VIDEO_FORMAT_UNKNOWN
Definition: video/raw.h:64
SPA_POD_Long
#define SPA_POD_Long(val)
Definition: vararg.h:85
spa_pod_find_prop
static const struct spa_pod_prop * spa_pod_find_prop(const struct spa_pod *pod, const struct spa_pod_prop *start, uint32_t key)
Definition: iter.h:428
spa_pod_builder_add
static int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition: builder.h:667
SPA_POD_Id
#define SPA_POD_Id(val)
Definition: vararg.h:69
spa_pod_builder_pop
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition: builder.h:188
SPA_POD_OPT_Id
#define SPA_POD_OPT_Id(val)
Definition: parser.h:540
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:455
spa_pod_parse_object
#define spa_pod_parse_object(pod, type, id,...)
Definition: parser.h:596
SPA_POD_OPT_Long
#define SPA_POD_OPT_Long(val)
Definition: parser.h:544
SPA_TYPE_OBJECT_Format
@ SPA_TYPE_OBJECT_Format
Definition: spa/include/spa/utils/type.h:96
parser.h
spa/pod/parser.h
spa_pod_builder
Definition: builder.h:73
spa_pod_frame
Definition: iter.h:47
spa_pod
Definition: pod/pod.h:63
spa_video_info_dsp
Definition: video/dsp.h:44
spa_video_info_dsp::flags
uint32_t flags
Definition: video/dsp.h:46
spa_video_info_dsp::format
enum spa_video_format format
Definition: video/dsp.h:45
spa_video_info_dsp::modifier
uint64_t modifier
Definition: video/dsp.h:47
dsp.h
spa/param/video/dsp.h