1 /* GStreamer RTP DTMF source 2 * 3 * gstrtpdtmfsrc.h: 4 * 5 * Copyright (C) <2007> Nokia Corporation. 6 * Contact: Zeeshan Ali <zeeshan.ali@nokia.com> 7 * Copyright (C) <2005> Wim Taymans <wim@fluendo.com> 8 * 9 * This library is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Library General Public 11 * License as published by the Free Software Foundation; either 12 * version 2 of the License, or (at your option) any later version. 13 * 14 * This library is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Library General Public License for more details. 18 * 19 * You should have received a copy of the GNU Library General Public 20 * License along with this library; if not, write to the 21 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 22 * Boston, MA 02110-1301, USA. 23 */ 24 25 #ifndef __GST_RTP_DTMF_SRC_H__ 26 #define __GST_RTP_DTMF_SRC_H__ 27 28 #include <gst/gst.h> 29 #include <gst/base/gstbasesrc.h> 30 #include <gst/rtp/gstrtpbuffer.h> 31 32 #include "gstdtmfcommon.h" 33 34 G_BEGIN_DECLS 35 #define GST_TYPE_RTP_DTMF_SRC (gst_rtp_dtmf_src_get_type()) 36 #define GST_RTP_DTMF_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_DTMF_SRC,GstRTPDTMFSrc)) 37 #define GST_RTP_DTMF_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_DTMF_SRC,GstRTPDTMFSrcClass)) 38 #define GST_RTP_DTMF_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_DTMF_SRC, GstRTPDTMFSrcClass)) 39 #define GST_IS_RTP_DTMF_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_DTMF_SRC)) 40 #define GST_IS_RTP_DTMF_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_DTMF_SRC)) 41 #define GST_RTP_DTMF_SRC_CAST(obj) ((GstRTPDTMFSrc *)(obj)) 42 typedef struct _GstRTPDTMFSrc GstRTPDTMFSrc; 43 typedef struct _GstRTPDTMFSrcClass GstRTPDTMFSrcClass; 44 45 46 47 enum _GstRTPDTMFEventType 48 { 49 RTP_DTMF_EVENT_TYPE_START, 50 RTP_DTMF_EVENT_TYPE_STOP, 51 RTP_DTMF_EVENT_TYPE_PAUSE_TASK 52 }; 53 54 typedef enum _GstRTPDTMFEventType GstRTPDTMFEventType; 55 56 struct _GstRTPDTMFSrcEvent 57 { 58 GstRTPDTMFEventType event_type; 59 GstRTPDTMFPayload *payload; 60 }; 61 62 typedef struct _GstRTPDTMFSrcEvent GstRTPDTMFSrcEvent; 63 64 /** 65 * GstRTPDTMFSrc: 66 * @element: the parent element. 67 * 68 * The opaque #GstRTPDTMFSrc data structure. 69 */ 70 struct _GstRTPDTMFSrc 71 { 72 /*< private >*/ 73 GstBaseSrc basesrc; 74 75 GAsyncQueue *event_queue; 76 GstClockID clockid; 77 gboolean paused; 78 GstRTPDTMFPayload *payload; 79 80 GstClockTime timestamp; 81 GstClockTime start_timestamp; 82 gboolean first_packet; 83 gboolean last_packet; 84 guint32 ts_base; 85 guint16 seqnum_base; 86 gint16 seqnum_offset; 87 guint16 seqnum; 88 gint32 ts_offset; 89 guint32 rtp_timestamp; 90 guint pt; 91 guint ssrc; 92 guint current_ssrc; 93 guint16 ptime; 94 guint16 packet_redundancy; 95 guint32 clock_rate; 96 gboolean last_event_was_start; 97 98 GstClockTime last_stop; 99 100 gboolean dirty; 101 guint16 redundancy_count; 102 }; 103 104 struct _GstRTPDTMFSrcClass 105 { 106 GstBaseSrcClass parent_class; 107 }; 108 109 GType gst_rtp_dtmf_src_get_type (void); 110 111 GST_ELEMENT_REGISTER_DECLARE (rtpdtmfsrc); 112 113 G_END_DECLS 114 #endif /* __GST_RTP_DTMF_SRC_H__ */ 115