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66 lines
2 KiB
C
66 lines
2 KiB
C
/* Simple Plugin API
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __SPA_PARAM_META_H__
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#define __SPA_PARAM_META_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <fcntl.h> /* for off_t */
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#include <spa/utils/defs.h>
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#include <spa/param/param.h>
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#include <spa/support/type-map.h>
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#define SPA_TYPE_PARAM__Meta SPA_TYPE_PARAM_BASE "Meta"
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#define SPA_TYPE_PARAM_META_BASE SPA_TYPE_PARAM__Meta ":"
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#define SPA_TYPE_PARAM_META__type SPA_TYPE_PARAM_META_BASE "type"
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#define SPA_TYPE_PARAM_META__size SPA_TYPE_PARAM_META_BASE "size"
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struct spa_type_param_meta {
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uint32_t Meta;
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uint32_t type;
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uint32_t size;
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};
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static inline void
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spa_type_param_meta_map(struct spa_type_map *map,
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struct spa_type_param_meta *type)
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{
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if (type->Meta == 0) {
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size_t i;
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#define OFF(n) offsetof(struct spa_type_param_meta, n)
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static struct { off_t offset; const char *type; } tab[] = {
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{ OFF(Meta), SPA_TYPE_PARAM__Meta },
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{ OFF(type), SPA_TYPE_PARAM_META__type },
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{ OFF(size), SPA_TYPE_PARAM_META__size },
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};
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#undef OFF
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for (i = 0; i < SPA_N_ELEMENTS(tab); i++)
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*SPA_MEMBER(type, tab[i].offset, uint32_t) = spa_type_map_get_id(map, tab[i].type);
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}
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}
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __SPA_PARAM_META_H__ */
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