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b574843be7
Original commit message from CVS: sorry to bother, but you still have INVLAID in part of the macro :-/
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wim.taymans@chello.be>
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*
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* gstdata.h: Header for GstData objects (used for data passing)
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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_DATA_H__
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#define __GST_DATA_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_ATOMIC_H
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#include <asm/atomic.h>
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#endif
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#include <glib-object.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef enum {
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GST_DATA_UNKNOWN,
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GST_DATA_NONE, /* uninitialized */
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/* buffer */
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GST_DATA_BUFFER,
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GST_DATA_BUFFERPOOL,
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/* events */
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GST_EVENT_FIRST,
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/* instream events */
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GST_EVENT_EOS,
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GST_EVENT_DISCONTINUOUS,
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GST_EVENT_NEWMEDIA,
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GST_EVENT_LENGTH,
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/* upstream events */
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GST_EVENT_SEEK,
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GST_EVENT_EMPTY,
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GST_EVENT_FLUSH,
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GST_EVENT_LOCK,
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GST_EVENT_UNLOCK,
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/* custom events */
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GST_EVENT_CUSTOM,
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GST_EVENT_CUSTOM_LAST = 0xFFFF,
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/* addable events */
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} GstDataType;
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/* number of types */
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#define GST_OFFSET_TYPES 3 /* number of different GstOffsetType types */
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#define GST_OFFSET_INVALID (~((guint64) 0)) /* invalid (or unitialized) offset */
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#define GST_OFFSET_IS_INVALID(offset) (offset == GST_OFFSET_INVALID)
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typedef enum {
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GST_OFFSET_TIME = 0,
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GST_OFFSET_BYTES = 1,
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GST_OFFSET_FRAMES = 2,
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} GstOffsetType;
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#define GST_DATA_MASK (GST_EVENT_CUSTOM_LAST)
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#define GST_DATA(data) ((GstData*)(data))
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#define GST_DATA_TYPE(data) (((GstData*)(data))->type)
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#define GST_DATA_OFFSET_TIME(data) (((GstData*)(data))->offset[GST_OFFSET_TIME])
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#define GST_DATA_OFFSET_BYTES(data) (((GstData*)(data))->offset[GST_OFFSET_BYTES])
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#define GST_DATA_OFFSET_FRAMES(data) (((GstData*)(data))->offset[GST_OFFSET_FRAMES])
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/* flags */
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#define GST_DATA_FLAGS(data) (GST_DATA(data)->flags)
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#define GST_DATA_FLAG_IS_SET(data,flag) (GST_DATA_FLAGS(data) & (1<<(flag)))
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#define GST_DATA_FLAG_SET(data,flag) G_STMT_START{ (GST_DATA_FLAGS(data) |= (1<<(flag))); }G_STMT_END
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#define GST_DATA_FLAG_UNSET(data,flag) G_STMT_START{ (GST_DATA_FLAGS(data) &= ~(1<<(flag))); }G_STMT_END
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enum {
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GST_DATA_READONLY,
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/* insert more */
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GST_DATA_FLAG_LAST
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};
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#define GST_DATA_IS_WRITABLE(data) (!GST_DATA_FLAG_IS_SET((data), GST_DATA_READONLY))
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typedef struct _GstData GstData;
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typedef void (*GstDataFreeFunction) (GstData *data);
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struct _GstData
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{
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GstDataType type;
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/* could go into class */
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GstDataFreeFunction dispose;
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GstDataFreeFunction free;
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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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gint refcount;
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GMutex * reflock;
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#endif
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/* flags */
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guint flags;
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/* offset in stream */
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/* FIXME: only instream data needs that */
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guint64 offset[GST_OFFSET_TYPES];
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};
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/* inheritance */
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void gst_data_init (GstData *data);
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void gst_data_copy (GstData *to, const GstData *from);
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void gst_data_dispose (GstData *data);
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/* construction */
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GstData * gst_data_new (GType type);
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/* reference counting */
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void gst_data_ref (GstData* data);
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void gst_data_unref (GstData* data);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GST_DATA_H__ */
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