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/* GStreamer EBML I/O
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* ebml-read.c: read EBML data from file/stream
*
* 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_EBML_READ_H__
#define __GST_EBML_READ_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_EBML_READ \
(gst_ebml_read_get_type ())
#define GST_EBML_READ(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_EBML_READ, GstEbmlRead))
#define GST_EBML_READ_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_EBML_READ, GstEbmlReadClass))
#define GST_IS_EBML_READ(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_EBML_READ))
#define GST_IS_EBML_READ_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_EBML_READ))
#define GST_EBML_READ_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_EBML_READ, GstEbmlReadClass))
/* custom flow return code */
#define GST_FLOW_END GST_FLOW_CUSTOM_SUCCESS
typedef struct _GstEbmlLevel {
guint64 start;
guint64 length;
} GstEbmlLevel;
typedef struct _GstEbmlRead {
GstElement parent;
GstBuffer *cached_buffer;
gboolean push_cache;
GstPad *sinkpad;
guint64 offset;
GList *level;
} GstEbmlRead;
typedef struct _GstEbmlReadClass {
GstElementClass parent;
} GstEbmlReadClass;
GType gst_ebml_read_get_type (void);
void gst_ebml_level_free (GstEbmlLevel *level);
void gst_ebml_read_reset_cache (GstEbmlRead * ebml,
GstBuffer * buffer,
guint64 offset);
GstFlowReturn gst_ebml_peek_id (GstEbmlRead *ebml,
guint *level_up,
guint32 *id);
GstFlowReturn gst_ebml_read_seek (GstEbmlRead *ebml,
guint64 offset);
gint64 gst_ebml_read_get_length (GstEbmlRead *ebml);
GstFlowReturn gst_ebml_read_skip (GstEbmlRead *ebml);
GstFlowReturn gst_ebml_read_buffer (GstEbmlRead *ebml,
guint32 *id,
GstBuffer **buf);
GstFlowReturn gst_ebml_read_uint (GstEbmlRead *ebml,
guint32 *id,
guint64 *num);
GstFlowReturn gst_ebml_read_sint (GstEbmlRead *ebml,
guint32 *id,
gint64 *num);
GstFlowReturn gst_ebml_read_float (GstEbmlRead *ebml,
guint32 *id,
gdouble *num);
GstFlowReturn gst_ebml_read_ascii (GstEbmlRead *ebml,
guint32 *id,
gchar **str);
GstFlowReturn gst_ebml_read_utf8 (GstEbmlRead *ebml,
guint32 *id,
gchar **str);
GstFlowReturn gst_ebml_read_date (GstEbmlRead *ebml,
guint32 *id,
gint64 *date);
GstFlowReturn gst_ebml_read_master (GstEbmlRead *ebml,
guint32 *id);
GstFlowReturn gst_ebml_read_binary (GstEbmlRead *ebml,
guint32 *id,
guint8 **binary,
guint64 *length);
GstFlowReturn gst_ebml_read_header (GstEbmlRead *read,
gchar **doctype,
guint *version);
G_END_DECLS
#endif /* __GST_EBML_READ_H__ */
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