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