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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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_QTDEMUX_H__
#define __GST_QTDEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/base/gstflowcombiner.h>
G_BEGIN_DECLS
GST_DEBUG_CATEGORY_EXTERN (qtdemux_debug);
#define GST_CAT_DEFAULT qtdemux_debug
#define GST_TYPE_QTDEMUX \
(gst_qtdemux_get_type())
#define GST_QTDEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_QTDEMUX,GstQTDemux))
#define GST_QTDEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_QTDEMUX,GstQTDemuxClass))
#define GST_IS_QTDEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_QTDEMUX))
#define GST_IS_QTDEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_QTDEMUX))
#define GST_QTDEMUX_CAST(obj) ((GstQTDemux *)(obj))
/* qtdemux produces these for atoms it cannot parse */
#define GST_QT_DEMUX_PRIVATE_TAG "private-qt-tag"
#define GST_QT_DEMUX_CLASSIFICATION_TAG "classification"
#define GST_QTDEMUX_MAX_STREAMS 32
typedef struct _GstQTDemux GstQTDemux;
typedef struct _GstQTDemuxClass GstQTDemuxClass;
typedef struct _QtDemuxStream QtDemuxStream;
struct _GstQTDemux {
GstElement element;
/* pads */
GstPad *sinkpad;
QtDemuxStream *streams[GST_QTDEMUX_MAX_STREAMS];
gint n_streams;
gint n_video_streams;
gint n_audio_streams;
gint n_sub_streams;
GstFlowCombiner *flowcombiner;
gboolean have_group_id;
guint group_id;
guint major_brand;
GstBuffer *comp_brands;
GNode *moov_node;
GNode *moov_node_compressed;
guint32 timescale;
guint64 duration;
gboolean fragmented;
guint64 moof_offset;
gint state;
gboolean pullbased;
gboolean posted_redirect;
/* push based variables */
guint neededbytes;
guint todrop;
GstAdapter *adapter;
GstBuffer *mdatbuffer;
guint64 mdatleft;
/* When restoring the mdat to the adatpter, this buffer
* stores any trailing data that was after the last atom parsed as it
* has to be restored later along with the correct offset. Used in
* fragmented scenario where mdat/moof are one after the other
* in any order.
*
* Check https://bugzilla.gnome.org/show_bug.cgi?id=710623 */
GstBuffer *restoredata_buffer;
guint64 restoredata_offset;
guint64 offset;
/* offset of the mdat atom */
guint64 mdatoffset;
guint64 first_mdat;
gboolean got_moov;
guint64 last_moov_offset;
guint header_size;
GstTagList *tag_list;
/* configured playback region */
GstSegment segment;
GstEvent *pending_newsegment;
gboolean upstream_newsegment; /* qtdemux received upstream
* newsegment in TIME format which likely
* means that upstream is driving the pipeline
* (adaptive demuxers) */
gint64 seek_offset;
gint64 push_seek_start;
gint64 push_seek_stop;
guint64 segment_base; /* The offset from which playback was started, needs to
* be subtracted from GstSegment.base to get a correct
* running time whenever a new QtSegment is activated */
#if 0
/* gst index support */
GstIndex *element_index;
gint index_id;
#endif
gboolean upstream_seekable;
gint64 upstream_size;
/* MSS streams have a single media that is unspecified at the atoms, so
* upstream provides it at the caps */
GstCaps *media_caps;
gboolean exposed;
gboolean mss_mode; /* flag to indicate that we're working with a smoothstreaming fragment
* Mss doesn't have 'moov' or any information about the streams format,
* requiring qtdemux to expose and create the streams */
guint64 fragment_start;
guint64 fragment_start_offset;
gint64 chapters_track_id;
};
struct _GstQTDemuxClass {
GstElementClass parent_class;
};
GType gst_qtdemux_get_type (void);
G_END_DECLS
#endif /* __GST_QTDEMUX_H__ */
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