PipeWire  1.0.3
mjpg-utils.h
1 /* Simple Plugin API */
2 /* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3 /* SPDX-License-Identifier: MIT */
4 
5 #ifndef SPA_VIDEO_MJPG_UTILS_H
6 #define SPA_VIDEO_MJPG_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/video/mjpg.h>
20 
21 static inline int
22 spa_format_video_mjpg_parse(const struct spa_pod *format,
23  struct spa_video_info_mjpg *info)
24 {
25  return spa_pod_parse_object(format,
30 }
31 
32 static inline struct spa_pod *
33 spa_format_video_mjpg_build(struct spa_pod_builder *builder, uint32_t id,
34  struct spa_video_info_mjpg *info)
35 {
36  struct spa_pod_frame f;
41  0);
42  if (info->size.width != 0 && info->size.height != 0)
43  spa_pod_builder_add(builder,
45  if (info->framerate.denom != 0)
46  spa_pod_builder_add(builder,
48  if (info->max_framerate.denom != 0)
49  spa_pod_builder_add(builder,
51  return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
52 }
53 
58 #ifdef __cplusplus
59 } /* extern "C" */
60 #endif
61 
62 #endif /* SPA_VIDEO_MJPG_UTILS_H */
uint32_t denom
Definition: defs.h:125
media type (Id enum spa_media_type)
Definition: format.h:93
static int spa_format_video_mjpg_parse(const struct spa_pod *format, struct spa_video_info_mjpg *info)
Definition: mjpg-utils.h:27
static int spa_pod_builder_add(struct spa_pod_builder *builder,...)
Definition: builder.h:647
#define SPA_POD_OPT_Rectangle(val)
Definition: parser.h:536
uint32_t height
Definition: defs.h:104
Definition: iter.h:27
size (Rectangle)
Definition: format.h:123
static struct spa_pod * spa_format_video_mjpg_build(struct spa_pod_builder *builder, uint32_t id, struct spa_video_info_mjpg *info)
Definition: mjpg-utils.h:38
struct spa_rectangle size
Definition: mjpg.h:25
struct spa_fraction framerate
Definition: mjpg.h:26
struct spa_fraction max_framerate
Definition: mjpg.h:27
Definition: format.h:28
media subtype (Id enum spa_media_subtype)
Definition: format.h:94
static void * spa_pod_builder_pop(struct spa_pod_builder *builder, struct spa_pod_frame *frame)
Definition: builder.h:168
frame rate (Fraction)
Definition: format.h:124
Definition: mjpg.h:24
#define SPA_POD_OPT_Fraction(val)
Definition: parser.h:538
uint32_t width
Definition: defs.h:103
Definition: pod.h:43
#define spa_pod_parse_object(pod, type, id,...)
Definition: parser.h:576
Definition: type.h:76
#define SPA_POD_Rectangle(val)
Definition: vararg.h:102
#define SPA_POD_Fraction(val)
Definition: vararg.h:111
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
Definition: builder.h:53
Definition: format.h:63
maximum frame rate (Fraction)
Definition: format.h:125
#define SPA_POD_Id(val)
Definition: vararg.h:49