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This patch adds to the CVF depayloader the capability to regroup H.264 fragmented FU-A packets. After all packets are regrouped, they are added to the "stash" of H.264 NAL units that will be sent as soon as an AVTP packet with M bit set is found (usually, the last fragment). Unrecognized fragments (such as first fragment seen, but with no Start bit set) are discarded - and any NAL units on the "stash" are sent downstream, as if a SEQNUM discontinuty happened.
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* GStreamer AVTP Plugin
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* Copyright (C) 2019 Intel Corporation
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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 Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef __GST_AVTP_CVF_DEPAY_H__
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#define __GST_AVTP_CVF_DEPAY_H__
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#include <gst/gst.h>
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#include "gstavtpbasedepayload.h"
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G_BEGIN_DECLS
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#define GST_TYPE_AVTP_CVF_DEPAY (gst_avtp_cvf_depay_get_type())
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#define GST_AVTP_CVF_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVTP_CVF_DEPAY,GstAvtpCvfDepay))
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#define GST_AVTP_CVF_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVTP_CVF_DEPAY,GstAvtpCvfDepayClass))
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#define GST_IS_AVTP_CVF_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVTP_CVF_DEPAY))
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#define GST_IS_AVTP_CVF_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVTP_CVF_DEPAY))
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typedef struct _GstAvtpCvfDepay GstAvtpCvfDepay;
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typedef struct _GstAvtpCvfDepayClass GstAvtpCvfDepayClass;
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struct _GstAvtpCvfDepay
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{
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GstAvtpBaseDepayload depayload;
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guint8 seqnum;
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GstBuffer *out_buffer;
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GstBuffer *fragments;
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};
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struct _GstAvtpCvfDepayClass
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{
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GstAvtpBaseDepayloadClass parent_class;
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};
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GType gst_avtp_cvf_depay_get_type (void);
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gboolean gst_avtp_cvf_depay_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_AVTP_CVF_DEPAY_H__ */
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