+/*****************************************************************************
+ * ogg.h : ogg stream demux module for vlc
+ *****************************************************************************
+ * Copyright (C) 2001-2010 the VideoLAN team
+ *
+ * Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Andre Pang <Andre.Pang@csiro.au> (Annodex support)
+ * Gabriel Finch <salsaman@gmail.com> (moved from ogg.c to ogg.h)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+
+
+
+
+/*****************************************************************************
+ * Definitions of structures and functions used by this plugins
+ *****************************************************************************/
+
+
+typedef struct oggseek_index_entry demux_index_entry_t;
+
+
+typedef struct logical_stream_s
+{
+ ogg_stream_state os; /* logical stream of packets */
+
+ es_format_t fmt;
+ es_format_t fmt_old; /* format of old ES is reused */
+ es_out_id_t *p_es;
+ double f_rate;
+
+ int i_serial_no;
+
+ /* the header of some logical streams (eg vorbis) contain essential
+ * data for the decoder. We back them up here in case we need to re-feed
+ * them to the decoder. */
+ int b_force_backup;
+ int i_packets_backup;
+ void *p_headers;
+ int i_headers;
+
+ /* program clock reference (in units of 90kHz) derived from the previous
+ * granulepos */
+ mtime_t i_pcr;
+ mtime_t i_interpolated_pcr;
+ mtime_t i_previous_pcr;
+
+ /* Misc */
+ bool b_reinit;
+ int i_granule_shift;
+
+ /* offset of first keyframe for theora; can be 0 or 1 depending on version number */
+ int64_t i_keyframe_offset;
+
+ /* kate streams have the number of headers in the ID header */
+ int i_kate_num_headers;
+
+ /* for Annodex logical bitstreams */
+ int i_secondary_header_packets;
+
+} logical_stream_t;
+
+
+
+
+
+
+struct demux_sys_t
+{
+ ogg_sync_state oy; /* sync and verify incoming physical bitstream */
+
+ int i_streams; /* number of logical bitstreams */
+ logical_stream_t **pp_stream; /* pointer to an array of logical streams */
+
+ logical_stream_t *p_old_stream; /* pointer to a old logical stream to avoid recreating it */
+
+ /* program clock reference (in units of 90kHz) derived from the pcr of
+ * the sub-streams */
+ mtime_t i_pcr;
+
+ /* stream state */
+ int i_bos;
+ int i_eos;
+
+ /* bitrate */
+ int i_bitrate;
+
+ /* after reading all headers, the first data page is stuffed into the relevant stream, ready to use */
+ bool b_page_waiting;
+
+ mtime_t i_st_pts;
+
+
+ /* */
+ vlc_meta_t *p_meta;
+};