+++ /dev/null
-/* GStreamer
- * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
- * 2000 Wim Taymans <wtay@chello.be>
- *
- * gstbuffer.h: Header for GstBuffer object
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-
-#ifndef __GST_BUFFER_H__
-#define __GST_BUFFER_H__
-
-/* */
-/* Define this to add file:line info to each GstBuffer showing */
-/* the location in the source code where the buffer was created. */
-/* */
-/* #define GST_BUFFER_WHERE */
-/* */
-/* Then in gdb, you can `call gst_buffer_print_live()' to get a list */
-/* of allocated GstBuffers and also the file:line where they were */
-/* allocated. */
-/* */
-
-#include <gst/gstdata.h>
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifdef HAVE_ATOMIC_H
-#include <asm/atomic.h>
-#endif
-
-G_BEGIN_DECLS
-
-extern GType _gst_buffer_type;
-
-#define GST_TYPE_BUFFER (_gst_buffer_type)
-#define GST_BUFFER(buf) ((GstBuffer *)(buf))
-#define GST_IS_BUFFER(buf) (GST_DATA_TYPE(buf) == GST_TYPE_BUFFER)
-
-#define GST_BUFFER_FLAGS(buf) (GST_BUFFER(buf)->flags)
-#define GST_BUFFER_FLAG_IS_SET(buf,flag) (GST_BUFFER_FLAGS(buf) & (1<<(flag)))
-#define GST_BUFFER_FLAG_SET(buf,flag) G_STMT_START{ (GST_BUFFER_FLAGS(buf) |= (1<<(flag))); }G_STMT_END
-#define GST_BUFFER_FLAG_UNSET(buf,flag) G_STMT_START{ (GST_BUFFER_FLAGS(buf) &= ~(1<<(flag))); }G_STMT_END
-
-
-#define GST_BUFFER_DATA(buf) (GST_BUFFER(buf)->data)
-#define GST_BUFFER_SIZE(buf) (GST_BUFFER(buf)->size)
-#define GST_BUFFER_OFFSET(buf) (GST_BUFFER(buf)->offset)
-#define GST_BUFFER_MAXSIZE(buf) (GST_BUFFER(buf)->maxsize)
-#define GST_BUFFER_TIMESTAMP(buf) (GST_BUFFER(buf)->timestamp)
-#define GST_BUFFER_MAXAGE(buf) (GST_BUFFER(buf)->maxage)
-#define GST_BUFFER_BUFFERPOOL(buf) (GST_BUFFER(buf)->pool)
-#define GST_BUFFER_PARENT(buf) (GST_BUFFER(buf)->parent)
-#define GST_BUFFER_POOL_PRIVATE(buf) (GST_BUFFER(buf)->pool_private)
-#define GST_BUFFER_COPY_FUNC(buf) (GST_BUFFER(buf)->copy)
-#define GST_BUFFER_FREE_FUNC(buf) (GST_BUFFER(buf)->free)
-
-
-#define GST_BUFFER_LOCK(buf) (g_mutex_lock(GST_BUFFER(buf)->lock))
-#define GST_BUFFER_TRYLOCK(buf) (g_mutex_trylock(GST_BUFFER(buf)->lock))
-#define GST_BUFFER_UNLOCK(buf) (g_mutex_unlock(GST_BUFFER(buf)->lock))
-
-
-typedef enum {
- GST_BUFFER_READONLY,
- GST_BUFFER_ORIGINAL,
- GST_BUFFER_DONTFREE,
-
-} GstBufferFlags;
-
-
-typedef struct _GstBuffer GstBuffer;
-
-
-typedef void (*GstBufferFreeFunc) (GstBuffer *buf);
-typedef GstBuffer *(*GstBufferCopyFunc) (GstBuffer *srcbuf);
-
-
-
-struct _GstBuffer {
- GstData data_type;
-
- /* locking */
- GMutex *lock;
-
- /* refcounting */
-#ifdef HAVE_ATOMIC_H
- atomic_t refcount;
-#define GST_BUFFER_REFCOUNT(buf) (atomic_read(&(GST_BUFFER((buf))->refcount)))
-#else
- int refcount;
-#define GST_BUFFER_REFCOUNT(buf) (GST_BUFFER(buf)->refcount)
-#endif
-
- /* flags */
- guint16 flags;
-
- /* pointer to data, its size, and offset in original source if known */
- guchar *data;
- guint32 size;
- guint32 maxsize;
- guint32 offset;
-
- /* timestamp */
- gint64 timestamp;
- gint64 maxage;
-
- /* subbuffer support, who's my parent? */
- GstBuffer *parent;
-
- /* this is a pointer to the buffer pool (if any) */
- GstBufferPool *pool;
- gpointer pool_private;
-
- /* utility function pointers */
- GstBufferFreeFunc free; /* free the data associated with the buffer */
- GstBufferCopyFunc copy; /* copy the data from one buffer to another */
-};
-
-/* initialisation */
-void _gst_buffer_initialize (void);
-/* creating a new buffer from scratch */
-GstBuffer* gst_buffer_new (void);
-GstBuffer* gst_buffer_new_from_pool (GstBufferPool *pool, guint32 offset, guint32 size);
-
-/* creating a subbuffer */
-GstBuffer* gst_buffer_create_sub (GstBuffer *parent, guint32 offset, guint32 size);
-
-/* refcounting */
-void gst_buffer_ref (GstBuffer *buffer);
-void gst_buffer_unref (GstBuffer *buffer);
-
-/* destroying the buffer */
-void gst_buffer_destroy (GstBuffer *buffer);
-
-/* copy buffer */
-GstBuffer* gst_buffer_copy (GstBuffer *buffer);
-
-/* merge, span, or append two buffers, intelligently */
-GstBuffer* gst_buffer_merge (GstBuffer *buf1, GstBuffer *buf2);
-GstBuffer* gst_buffer_span (GstBuffer *buf1,guint32 offset,GstBuffer *buf2,guint32 len);
-GstBuffer* gst_buffer_append (GstBuffer *buf, GstBuffer *buf2);
-
-gboolean gst_buffer_is_span_fast (GstBuffer *buf1, GstBuffer *buf2);
-
-G_END_DECLS
-
-#endif /* __GST_BUFFER_H__ */