1 /* 2 * GStreamer AVTP Plugin 3 * Copyright (C) 2019 Intel Corporation 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef __GST_AVTP_CRF_BASE_H__ 22 #define __GST_AVTP_CRF_BASE_H__ 23 24 #include <gst/base/gstbasetransform.h> 25 #include <gst/gst.h> 26 #include <linux/if_packet.h> 27 28 G_BEGIN_DECLS 29 #define GST_TYPE_AVTP_CRF_BASE (gst_avtp_crf_base_get_type()) 30 #define GST_AVTP_CRF_BASE(obj) \ 31 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVTP_CRF_BASE,GstAvtpCrfBase)) 32 #define GST_AVTP_CRF_BASE_CLASS(klass) \ 33 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVTP_CRF_BASE,GstAvtpCrfBaseClass)) 34 #define GST_IS_AVTP_CRF_BASE(obj) \ 35 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVTP_CRF_BASE)) 36 #define GST_IS_AVTP_CRF_BASE_CLASS(klass) \ 37 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVTP_CRF_BASE)) 38 typedef struct _GstAvtpCrfBase GstAvtpCrfBase; 39 typedef struct _GstAvtpCrfBaseClass GstAvtpCrfBaseClass; 40 typedef struct _GstAvtpCrfThreadData GstAvtpCrfThreadData; 41 42 struct _GstAvtpCrfThreadData 43 { 44 GThread *thread; 45 gboolean is_running; 46 47 guint64 num_pkt_tstamps; 48 GstClockTime timestamp_interval; 49 guint64 base_freq; 50 guint64 pull; 51 guint64 type; 52 guint64 mr; 53 54 gdouble *past_periods; 55 int past_periods_iter; 56 int periods_stored; 57 /** The time in ns between two events. The type of the event is depending on 58 * the CRF type: Audio sample, video frame sync, video line sync, ... 59 */ 60 gdouble average_period; 61 GstClockTime current_ts; 62 GstClockTime last_received_tstamp; 63 guint64 last_seqnum; 64 }; 65 66 struct _GstAvtpCrfBase 67 { 68 GstBaseTransform element; 69 70 guint64 streamid; 71 gchar *ifname; 72 gchar *address; 73 74 GstAvtpCrfThreadData thread_data; 75 }; 76 77 struct _GstAvtpCrfBaseClass 78 { 79 GstBaseTransformClass parent_class; 80 81 gpointer _gst_reserved[GST_PADDING]; 82 }; 83 84 GType gst_avtp_crf_base_get_type (void); 85 86 G_END_DECLS 87 #endif /* __GST_AVTP_CRF_BASE_H__ */ 88