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/* GStreamer
* Copyright (C) 2009 David Schleef <ds@schleef.org>
*
* gstoggstream.h: header for GstOggStream
*
* 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_OGG_STREAM_H__
#define __GST_OGG_STREAM_H__
#include <ogg/ogg.h>
#include <gst/gst.h>
G_BEGIN_DECLS
typedef enum {
GST_OGG_SKELETON_FISBONE,
GST_OGG_SKELETON_INDEX,
} GstOggSkeleton;
typedef struct {
guint64 offset;
guint64 timestamp;
} GstOggIndex;
typedef struct _GstOggStream GstOggStream;
struct _GstOggStream
{
ogg_stream_state stream;
glong serialno;
GList *headers;
gboolean have_headers;
GList *queued;
/* for oggparse */
gboolean in_headers;
GList *unknown_pages;
gint map;
gboolean is_skeleton;
gboolean have_fisbone;
gint granulerate_n;
gint granulerate_d;
guint32 preroll;
guint granuleshift;
gint n_header_packets;
gint n_header_packets_seen;
gint64 accumulated_granule;
gint frame_size;
gint bitrate;
GstCaps *caps;
/* vorbis stuff */
int nln_increments[4];
int nsn_increment;
int short_size;
int long_size;
int vorbis_log2_num_modes;
int vorbis_mode_sizes[256];
int last_size;
/* theora stuff */
gboolean theora_has_zero_keyoffset;
/* OGM stuff */
gboolean is_ogm;
gboolean is_ogm_text;
/* fishead stuff */
gint64 prestime;
gint64 basetime;
/* index */
guint n_index;
GstOggIndex *index;
guint64 kp_denom;
};
gboolean gst_ogg_stream_setup_map (GstOggStream * pad, ogg_packet *packet);
GstClockTime gst_ogg_stream_get_end_time_for_granulepos (GstOggStream *pad,
gint64 granulepos);
GstClockTime gst_ogg_stream_get_start_time_for_granulepos (GstOggStream *pad,
gint64 granulepos);
GstClockTime gst_ogg_stream_granule_to_time (GstOggStream *pad, gint64 granule);
gint64 gst_ogg_stream_granulepos_to_granule (GstOggStream * pad, gint64 granulepos);
gint64 gst_ogg_stream_granulepos_to_key_granule (GstOggStream * pad, gint64 granulepos);
gint64 gst_ogg_stream_granule_to_granulepos (GstOggStream * pad, gint64 granule, gint64 keyframe_granule);
GstClockTime gst_ogg_stream_get_packet_start_time (GstOggStream *pad,
ogg_packet *packet);
gboolean gst_ogg_stream_granulepos_is_key_frame (GstOggStream *pad,
gint64 granulepos);
gboolean gst_ogg_stream_packet_is_header (GstOggStream *pad, ogg_packet *packet);
gint64 gst_ogg_stream_get_packet_duration (GstOggStream * pad, ogg_packet *packet);
gboolean gst_ogg_map_parse_fisbone (GstOggStream * pad, const guint8 * data, guint size,
guint32 * serialno, GstOggSkeleton *type);
gboolean gst_ogg_map_add_fisbone (GstOggStream * pad, const guint8 * data, guint size,
GstClockTime * p_start_time);
gboolean gst_ogg_map_add_index (GstOggStream * pad, const guint8 * data, guint size);
gboolean gst_ogg_map_search_index (GstOggStream * pad, gboolean before, guint64 *timestamp, guint64 *offset);
G_END_DECLS
#endif /* __GST_OGG_STREAM_H__ */
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