1 /* 2 * Farsight Voice+Video library 3 * 4 * Copyright 2006 Collabora Ltd, 5 * Copyright 2006 Nokia Corporation 6 * @author: Philippe Kalaf <philippe.kalaf@collabora.co.uk>. 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 21 * Boston, MA 02111-1307, USA. 22 * 23 */ 24 25 #ifndef __GST_NET_SIM_H__ 26 #define __GST_NET_SIM_H__ 27 28 #include <gst/gst.h> 29 30 G_BEGIN_DECLS 31 32 /* #define's don't like whitespacey bits */ 33 #define GST_TYPE_NET_SIM \ 34 (gst_net_sim_get_type()) 35 #define GST_NET_SIM(obj) \ 36 (G_TYPE_CHECK_INSTANCE_CAST((obj), \ 37 GST_TYPE_NET_SIM,GstNetSim)) 38 #define GST_NET_SIM_CLASS(klass) \ 39 (G_TYPE_CHECK_CLASS_CAST((klass), \ 40 GST_TYPE_NET_SIM,GstNetSimClass)) 41 #define GST_IS_NET_SIM(obj) \ 42 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_NET_SIM)) 43 #define GST_IS_NET_SIM_CLASS(obj) \ 44 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_NET_SIM)) 45 46 typedef struct _GstNetSim GstNetSim; 47 typedef struct _GstNetSimClass GstNetSimClass; 48 49 typedef enum 50 { 51 DISTRIBUTION_UNIFORM, 52 DISTRIBUTION_NORMAL, 53 DISTRIBUTION_GAMMA 54 } GstNetSimDistribution; 55 56 typedef struct 57 { 58 gboolean generate; 59 gdouble z0; 60 gdouble z1; 61 } NormalDistributionState; 62 63 struct _GstNetSim 64 { 65 GstElement parent; 66 67 GstPad *sinkpad; 68 GstPad *srcpad; 69 70 GMutex loop_mutex; 71 GCond start_cond; 72 GMainLoop *main_loop; 73 gboolean running; 74 GRand *rand_seed; 75 gsize bucket_size; 76 GstClockTime prev_time; 77 NormalDistributionState delay_state; 78 gint64 last_ready_time; 79 80 /* properties */ 81 gint min_delay; 82 gint max_delay; 83 GstNetSimDistribution delay_distribution; 84 gfloat delay_probability; 85 gfloat drop_probability; 86 gfloat duplicate_probability; 87 guint drop_packets; 88 gint max_kbps; 89 gint max_bucket_size; 90 gboolean allow_reordering; 91 }; 92 93 struct _GstNetSimClass 94 { 95 GstElementClass parent_class; 96 }; 97 98 GType gst_net_sim_get_type (void); 99 GST_ELEMENT_REGISTER_DECLARE (netsim); 100 101 G_END_DECLS 102 103 #endif /* __GST_NET_SIM_H__ */ 104