mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-31 22:25:38 -04:00
6d59ad21c2
Proper negotiation requires that formats with modifiers are not matched with those without. This is ensured by using SPA_POD_PROP_FLAG_MANDATORY.
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* Simple Plugin API */
|
|
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
|
|
/* SPDX-License-Identifier: MIT */
|
|
|
|
#ifndef SPA_VIDEO_DSP_UTILS_H
|
|
#define SPA_VIDEO_DSP_UTILS_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \addtogroup spa_param
|
|
* \{
|
|
*/
|
|
|
|
#include <spa/pod/parser.h>
|
|
#include <spa/pod/builder.h>
|
|
#include <spa/param/video/dsp.h>
|
|
|
|
static inline int
|
|
spa_format_video_dsp_parse(const struct spa_pod *format,
|
|
struct spa_video_info_dsp *info)
|
|
{
|
|
info->flags = SPA_VIDEO_FLAG_NONE;
|
|
const struct spa_pod_prop *mod_prop;
|
|
if ((mod_prop = spa_pod_find_prop (format, NULL, SPA_FORMAT_VIDEO_modifier)) != NULL) {
|
|
info->flags |= SPA_VIDEO_FLAG_MODIFIER;
|
|
if ((mod_prop->flags & SPA_POD_PROP_FLAG_DONT_FIXATE) == SPA_POD_PROP_FLAG_DONT_FIXATE)
|
|
info->flags |= SPA_VIDEO_FLAG_MODIFIER_FIXATION_REQUIRED;
|
|
}
|
|
|
|
return spa_pod_parse_object(format,
|
|
SPA_TYPE_OBJECT_Format, NULL,
|
|
SPA_FORMAT_VIDEO_format, SPA_POD_OPT_Id(&info->format),
|
|
SPA_FORMAT_VIDEO_modifier, SPA_POD_OPT_Long(&info->modifier));
|
|
}
|
|
|
|
static inline struct spa_pod *
|
|
spa_format_video_dsp_build(struct spa_pod_builder *builder, uint32_t id,
|
|
struct spa_video_info_dsp *info)
|
|
{
|
|
struct spa_pod_frame f;
|
|
spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
|
|
spa_pod_builder_add(builder,
|
|
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video),
|
|
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsp),
|
|
0);
|
|
if (info->format != SPA_VIDEO_FORMAT_UNKNOWN)
|
|
spa_pod_builder_add(builder,
|
|
SPA_FORMAT_VIDEO_format, SPA_POD_Id(info->format), 0);
|
|
if (info->modifier != 0 || info->flags & SPA_VIDEO_FLAG_MODIFIER) {
|
|
spa_pod_builder_prop(builder,
|
|
SPA_FORMAT_VIDEO_modifier, SPA_POD_PROP_FLAG_MANDATORY);
|
|
spa_pod_builder_long(builder, info->modifier);
|
|
}
|
|
return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
|
|
}
|
|
|
|
/**
|
|
* \}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* SPA_VIDEO_DSP_UTILS_H */
|