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91b35975b5
Generate an index table for essence streams during playback and make sure that only the correct essence elements are used for played tracks. Make it possible to have one essence stream used in multiple playback tracks. Fix some minor bugs.
177 lines
4.1 KiB
C
177 lines
4.1 KiB
C
/* GStreamer
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* Copyright (C) 2008-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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 __MXF_DEMUX_H__
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#define __MXF_DEMUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include "mxftypes.h"
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#include "mxfparse.h"
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#include "mxfmetadata.h"
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G_BEGIN_DECLS
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#define GST_TYPE_MXF_DEMUX \
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(gst_mxf_demux_get_type())
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#define GST_MXF_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MXF_DEMUX,GstMXFDemux))
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#define GST_MXF_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MXF_DEMUX,GstMXFDemuxClass))
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#define GST_IS_MXF_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MXF_DEMUX))
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#define GST_IS_MXF_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MXF_DEMUX))
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typedef struct _GstMXFDemux GstMXFDemux;
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typedef struct _GstMXFDemuxClass GstMXFDemuxClass;
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#define GST_TYPE_MXF_DEMUX_PAD (gst_mxf_demux_pad_get_type())
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#define GST_MXF_DEMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_CAST((pad),GST_TYPE_MXF_DEMUX_PAD,GstMXFDemuxPad))
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#define GST_MXF_DEMUX_PAD_CAST(pad) ((GstMXFDemuxPad *) pad)
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#define GST_IS_MXF_DEMUX_PAD(pad) (G_TYPE_CHECK_INSTANCE_TYPE((pad),GST_TYPE_MXF_DEMUX_PAD))
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typedef struct _GstMXFDemuxPad GstMXFDemuxPad;
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typedef struct _GstMXFDemuxPadClass GstMXFDemuxPadClass;
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typedef struct
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{
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MXFPartitionPack partition;
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MXFPrimerPack primer;
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gboolean parsed_metadata;
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guint64 essence_container_offset;
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} GstMXFDemuxPartition;
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typedef struct
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{
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guint64 offset;
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gboolean keyframe;
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} GstMXFDemuxIndex;
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typedef struct
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{
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guint32 body_sid;
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guint32 track_number;
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gint64 position;
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gint64 duration;
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GArray *offsets;
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MXFMetadataSourcePackage *source_package;
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MXFMetadataTimelineTrack *source_track;
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gpointer mapping_data;
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const MXFEssenceElementHandler *handler;
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MXFEssenceElementHandleFunc handle_func;
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GstTagList *tags;
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GstCaps *caps;
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} GstMXFDemuxEssenceTrack;
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struct _GstMXFDemuxPad
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{
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GstPad parent;
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guint32 track_id;
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gboolean need_segment;
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GstClockTime last_stop;
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GstFlowReturn last_flow;
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gboolean eos, discont;
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GstTagList *tags;
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MXFMetadataGenericPackage *material_package;
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MXFMetadataTimelineTrack *material_track;
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guint current_component_index;
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MXFMetadataSourceClip *current_component;
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gint64 current_component_start;
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gint64 current_component_position;
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GstMXFDemuxEssenceTrack *current_essence_track;
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};
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struct _GstMXFDemuxPadClass
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{
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GstPadClass parent;
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};
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struct _GstMXFDemux
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{
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GstElement element;
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GstPad *sinkpad;
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GPtrArray *src;
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/* < private > */
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GstAdapter *adapter;
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GstSegment segment;
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GstEvent *new_seg_event;
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GstEvent *close_seg_event;
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guint64 offset;
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gboolean random_access;
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gboolean flushing;
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guint64 run_in;
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guint64 header_partition_pack_offset;
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guint64 footer_partition_pack_offset;
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/* MXF file state */
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GList *partitions;
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GstMXFDemuxPartition *current_partition;
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GArray *essence_tracks;
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GList *pending_index_table_segments;
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GArray *random_index_pack;
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/* Structural metadata */
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gboolean update_metadata;
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gboolean pull_footer_metadata;
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gboolean metadata_resolved;
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MXFMetadataPreface *preface;
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GHashTable *metadata;
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MXFUMID current_package_uid;
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MXFMetadataGenericPackage *current_package;
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gchar *current_package_string;
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gchar *requested_package_string;
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};
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struct _GstMXFDemuxClass
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{
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GstElementClass parent_class;
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};
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GType gst_mxf_demux_get_type (void);
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G_END_DECLS
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#endif /* __MXF_DEMUX_H__ */
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