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dd11e91c3b
SRT provides the original timestamp of a packet (with drift/skew corrected for local clock), which is what should be used for timestamping the outgoing buffers. This ensures that we output the packets with the same timestamp (and by extension rate) as the original feed. Also detect if packets were dropped (by checking the sequence number) and properly set DISCONT flag on the outgoing buffer. Finally answer the latency queries Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1658>
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/* GStreamer
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* Copyright (C) 2018, Collabora Ltd.
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* Copyright (C) 2018, SK Telecom, Co., Ltd.
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* Author: Jeongseok Kim <jeongseok.kim@sk.com>
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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_SRT_SRC_H__
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#define __GST_SRT_SRC_H__
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#include <gio/gio.h>
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#include <gst/gst.h>
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#include <gst/base/gstpushsrc.h>
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#include "gstsrtobject.h"
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G_BEGIN_DECLS
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#define GST_TYPE_SRT_SRC (gst_srt_src_get_type ())
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#define GST_IS_SRT_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_SRT_SRC))
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#define GST_IS_SRT_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_SRT_SRC))
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#define GST_SRT_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_SRT_SRC, GstSRTSrcClass))
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#define GST_SRT_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_SRT_SRC, GstSRTSrc))
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#define GST_SRT_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_SRT_SRC, GstSRTSrcClass))
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#define GST_SRT_SRC_CAST(obj) ((GstSRTSrc*)(obj))
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#define GST_SRT_SRC_CLASS_CAST(klass) ((GstSRTSrcClass*)(klass))
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typedef struct _GstSRTSrc GstSRTSrc;
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typedef struct _GstSRTSrcClass GstSRTSrcClass;
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struct _GstSRTSrc {
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GstPushSrc parent;
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GstCaps *caps;
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GstSRTObject *srtobject;
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GCancellable *cancellable;
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guint32 next_pktseq;
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};
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struct _GstSRTSrcClass {
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GstPushSrcClass parent_class;
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void (*caller_added) (GstSRTSrc *self, int sock, GSocketAddress * addr);
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void (*caller_removed) (GstSRTSrc *self, int sock, GSocketAddress * addr);
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};
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GType gst_srt_src_get_type (void);
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G_END_DECLS
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#endif // __GST_SRT_SRC_H__
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