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15391b29e1
buffer timestamps are converted to GstClockTime to cover pcr/pts wraps. multiple pcr/pts wraps are handled with an index which ensures at most a single pcr wraparound between two entries. the last seen pcr is recorded to have a nearby index point for short seeks resuming playback might be delayed if the postion is not a keyframe TODO: replace manual packet scanning and parsing in the initial duration estimation
95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
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* tsdemux - GStreamer MPEG transport stream demuxer
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* Copyright (C) 2009 Zaheer Abbas Merali
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* 2010 Edward Hervey
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*
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* Authors:
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* Zaheer Abbas Merali <zaheerabbas at merali dot org>
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* Edward Hervey <edward.hervey@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 GST_TS_DEMUX_H
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#define GST_TS_DEMUX_H
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#include <gst/gst.h>
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#include <gst/base/gstbytereader.h>
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#include "mpegtsbase.h"
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#include "mpegtspacketizer.h"
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G_BEGIN_DECLS
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#define GST_TYPE_TS_DEMUX \
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(gst_ts_demux_get_type())
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#define GST_TS_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TS_DEMUX,GstTSDemux))
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#define GST_TS_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TS_DEMUX,GstTSDemuxClass))
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#define GST_IS_TS_DEMUX(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TS_DEMUX))
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#define GST_IS_TS_DEMUX_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TS_DEMUX))
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#define GST_TS_DEMUX_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_TS_DEMUX, GstTSDemuxClass))
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#define GST_TS_DEMUX_CAST(obj) ((GstTSDemux*) obj)
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typedef struct _GstTSDemux GstTSDemux;
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typedef struct _GstTSDemuxClass GstTSDemuxClass;
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typedef struct _TSPcrOffset TSPcrOffset;
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struct _TSPcrOffset
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{
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guint64 gsttime;
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guint64 pcr;
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guint64 offset;
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};
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struct _GstTSDemux
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{
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MpegTSBase parent;
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/* the following vars must be protected with the OBJECT_LOCK as they can be
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* accessed from the application thread and the streaming thread */
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guint program_number; /* Required program number (ignore:-1) */
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gboolean emit_statistics;
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/*< private >*/
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MpegTSBaseProgram *program; /* Current program */
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guint current_program_number;
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gboolean need_newsegment;
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GstSegment segment;
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GstClockTime duration; /* Total duration */
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/* pcr wrap and seeking */
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GArray *index;
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gint index_size;
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TSPcrOffset first_pcr;
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TSPcrOffset last_pcr;
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TSPcrOffset cur_pcr;
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TSPcrOffset index_pcr;
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};
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struct _GstTSDemuxClass
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{
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MpegTSBaseClass parent_class;
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};
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GType gst_ts_demux_get_type (void);
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gboolean gst_ts_demux_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* GST_TS_DEMUX_H */
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