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85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_META_H__
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#define __GST_META_H__
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#include <glib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_META(meta) ((GstMeta *)(meta))
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#define GST_META_FLAGS(buf) \
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(GST_META(buf)->flags)
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#define GST_META_FLAG_IS_SET(meta,flag) \
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(GST_META_FLAGS(meta) & (flag))
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#define GST_META_FLAG_SET(meta,flag) \
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G_STMT_START{ (GST_META_FLAGS(meta) |= (flag)); }G_STMT_END
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#define GST_META_FLAG_UNSET(meta,flag) \
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G_STMT_START{ (GST_META_FLAGS(meta) &= ~(flag)); }G_STMT_END
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typedef enum {
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GST_META_FREEABLE = 1 << 0,
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} GstMetaFlags;
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typedef struct _GstMeta GstMeta;
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struct _GstMeta {
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/* locking */
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GMutex *lock;
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/* refcounting */
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#ifdef HAVE_ATOMIC_H
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atomic_t refcount;
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#else
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int refcount;
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#endif
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guint16 type;
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guint16 flags;
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void *data;
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guint16 size;
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};
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GstMeta *gst_meta_new_size(gint size);
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#define gst_meta_new(type) (type *)gst_meta_new_size(sizeof(type))
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/* refcounting */
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void gst_meta_ref(GstMeta *meta);
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void gst_meta_unref(GstMeta *meta);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_BUFFER_H__ */
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