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a49ce685d1
When the set-timestamps property is set, use PCRs on the provided (or autodetected) pcr-pid to apply (or replace) timestamps on the output buffers, using piece-wise linear interpolation. This allows tsparse to be used to stream an arbitrary mpeg-ts file, or to smooth jittery reception timestamps from a network stream. The reported latency is increased to match the smoothing latency if necessary.
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
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* mpegts_parse.h - GStreamer MPEG transport stream parser
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* Copyright (C) 2007 Alessandro Decina
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*
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* Authors:
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* Alessandro Decina <alessandro@nnva.org>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef GST_MPEG_TS_PARSE_H
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#define GST_MPEG_TS_PARSE_H
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#include <gst/gst.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_MPEGTS_PARSE \
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(mpegts_parse_get_type())
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#define GST_MPEGTS_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEGTS_PARSE,MpegTSParse2))
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#define GST_MPEGTS_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEGTS_PARSE,MpegTSParse2Class))
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#define GST_IS_MPEGTS_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEGTS_PARSE))
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#define GST_IS_MPEGTS_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEGTS_PARSE))
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typedef struct _MpegTSParse2 MpegTSParse2;
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typedef struct _MpegTSParse2Class MpegTSParse2Class;
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struct _MpegTSParse2 {
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MpegTSBase parent;
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gboolean have_group_id;
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guint group_id;
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GstClockTime smoothing_latency;
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GstClockTime current_pcr;
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gint user_pcr_pid;
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gint pcr_pid;
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/* Always present source pad */
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GstPad *srcpad;
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GList *srcpads;
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/* state */
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gboolean first;
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gboolean set_timestamps;
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/* Pending buffer state */
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GList *pending_buffers;
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GstClockTime previous_pcr;
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guint bytes_since_pcr;
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};
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struct _MpegTSParse2Class {
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MpegTSBaseClass parent_class;
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};
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G_GNUC_INTERNAL GType mpegts_parse_get_type(void);
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G_GNUC_INTERNAL gboolean gst_mpegtsparse_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* GST_MPEG_TS_PARSE_H */
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