gstreamer/gst/matroska/matroska-read-common.h
Ramiro Polla af45021036 matroskaparse: send global tags
Global tags are already being read in matroskaparse, but they are not
currently being sent.

This patch makes global tags get sent incrementally whenever new ones
are found.

https://bugzilla.gnome.org/show_bug.cgi?id=746242
2015-03-28 10:24:57 -03:00

159 lines
6 KiB
C

/* GStreamer Matroska muxer/demuxer
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
* (c) 2011 Debarshi Ray <rishi@gnu.org>
*
* matroska-read-common.h: shared by matroska file/stream demuxer and parser
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_MATROSKA_READ_COMMON_H__
#define __GST_MATROSKA_READ_COMMON_H__
#include <glib.h>
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "matroska-ids.h"
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN(matroskareadcommon_debug);
typedef enum {
GST_MATROSKA_READ_STATE_START,
GST_MATROSKA_READ_STATE_SEGMENT,
GST_MATROSKA_READ_STATE_HEADER,
GST_MATROSKA_READ_STATE_DATA,
GST_MATROSKA_READ_STATE_SEEK,
GST_MATROSKA_READ_STATE_SCANNING
} GstMatroskaReadState;
typedef struct _GstMatroskaReadCommon {
#if 0
GstIndex *element_index;
gint element_index_writer_id;
#endif
/* pads */
GstPad *sinkpad;
GPtrArray *src;
guint num_streams;
/* metadata */
gchar *muxing_app;
gchar *writing_app;
gint64 created;
/* state */
GstMatroskaReadState state;
/* stream type */
gboolean is_webm;
gboolean has_video;
/* did we parse cues/tracks/segmentinfo already? */
gboolean index_parsed;
gboolean segmentinfo_parsed;
gboolean attachments_parsed;
gboolean chapters_parsed;
GList *tags_parsed;
/* chapters stuff */
GstToc *toc;
gboolean toc_updated;
/* start-of-segment and length */
guint64 ebml_segment_start;
guint64 ebml_segment_length;
/* a cue (index) table */
GArray *index;
/* timescale in the file */
guint64 time_scale;
/* keeping track of playback position */
GstSegment segment;
GstTagList *global_tags;
gboolean global_tags_changed;
/* pull mode caching */
GstBuffer *cached_buffer;
guint8 *cached_data;
GstMapInfo cached_map;
/* push and pull mode */
guint64 offset;
/* push based mode usual suspects */
GstAdapter *adapter;
} GstMatroskaReadCommon;
GstFlowReturn gst_matroska_decode_content_encodings (GArray * encodings);
gboolean gst_matroska_decode_data (GArray * encodings, gpointer * data_out,
gsize * size_out, GstMatroskaTrackEncodingScope scope, gboolean free);
gint gst_matroska_index_seek_find (GstMatroskaIndex * i1, GstClockTime * time,
gpointer user_data);
GstMatroskaIndex * gst_matroska_read_common_do_index_seek (
GstMatroskaReadCommon * common, GstMatroskaTrackContext * track, gint64
seek_pos, GArray ** _index, gint * _entry_index, GstSearchMode snap_dir);
void gst_matroska_read_common_found_global_tag (GstMatroskaReadCommon * common,
GstElement * el, GstTagList * taglist);
gint64 gst_matroska_read_common_get_length (GstMatroskaReadCommon * common);
GstMatroskaTrackContext * gst_matroska_read_common_get_seek_track (
GstMatroskaReadCommon * common, GstMatroskaTrackContext * track);
GstFlowReturn gst_matroska_read_common_parse_index (GstMatroskaReadCommon *
common, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_info (GstMatroskaReadCommon *
common, GstElement * el, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_attachments (
GstMatroskaReadCommon * common, GstElement * el, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_chapters (GstMatroskaReadCommon *
common, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_header (GstMatroskaReadCommon *
common, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_metadata (GstMatroskaReadCommon *
common, GstElement * el, GstEbmlRead * ebml);
GstFlowReturn gst_matroska_read_common_parse_skip (GstMatroskaReadCommon *
common, GstEbmlRead * ebml, const gchar * parent_name, guint id);
GstFlowReturn gst_matroska_read_common_peek_bytes (GstMatroskaReadCommon *
common, guint64 offset, guint size, GstBuffer ** p_buf, guint8 ** bytes);
GstFlowReturn gst_matroska_read_common_peek_id_length_pull (GstMatroskaReadCommon *
common, GstElement * el, guint32 * _id, guint64 * _length, guint *
_needed);
GstFlowReturn gst_matroska_read_common_peek_id_length_push (GstMatroskaReadCommon *
common, GstElement * el, guint32 * _id, guint64 * _length, guint *
_needed);
gint gst_matroska_read_common_stream_from_num (GstMatroskaReadCommon * common,
guint track_num);
GstFlowReturn gst_matroska_read_common_read_track_encodings (
GstMatroskaReadCommon * common, GstEbmlRead * ebml,
GstMatroskaTrackContext * context);
void gst_matroska_read_common_reset_streams (GstMatroskaReadCommon * common,
GstClockTime time, gboolean full);
void gst_matroska_read_common_free_parsed_el (gpointer mem, gpointer user_data);
void gst_matroska_read_common_init (GstMatroskaReadCommon * ctx);
void gst_matroska_read_common_finalize (GstMatroskaReadCommon * ctx);
void gst_matroska_read_common_reset (GstElement * element,
GstMatroskaReadCommon * ctx);
gboolean gst_matroska_read_common_tracknumber_unique (GstMatroskaReadCommon *
common, guint64 num);
G_END_DECLS
#endif /* __GST_MATROSKA_READ_COMMON_H__ */