/* GStreamer RTP DTMF source * * gstrtpdtmfsrc.h: * * Copyright (C) <2007> Nokia Corporation. * Contact: Zeeshan Ali * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __GST_RTP_DTMF_SRC_H__ #define __GST_RTP_DTMF_SRC_H__ #include #include G_BEGIN_DECLS #define GST_TYPE_RTP_DTMF_SRC (gst_rtp_dtmf_src_get_type()) #define GST_RTP_DTMF_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_DTMF_SRC,GstRTPDTMFSrc)) #define GST_RTP_DTMF_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_DTMF_SRC,GstRTPDTMFSrcClass)) #define GST_RTP_DTMF_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTP_DTMF_SRC, GstRTPDTMFSrcClass)) #define GST_IS_RTP_DTMF_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_DTMF_SRC)) #define GST_IS_RTP_DTMF_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_DTMF_SRC)) #define GST_RTP_DTMF_SRC_CAST(obj) ((GstRTPDTMFSrc *)(obj)) typedef struct { unsigned event:8; /* Current DTMF event */ #if G_BYTE_ORDER == G_LITTLE_ENDIAN unsigned volume:6; /* power level of the tone, in dBm0 */ unsigned r:1; /* Reserved-bit */ unsigned e:1; /* End-bit */ #elif G_BYTE_ORDER == G_BIG_ENDIAN unsigned e:1; /* End-bit */ unsigned r:1; /* Reserved-bit */ unsigned volume:6; /* power level of the tone, in dBm0 */ #else #error "G_BYTE_ORDER should be big or little endian." #endif unsigned duration:16; /* Duration of digit, in timestamp units */ } GstRTPDTMFPayload; typedef struct _GstRTPDTMFSrc GstRTPDTMFSrc; typedef struct _GstRTPDTMFSrcClass GstRTPDTMFSrcClass; /** * GstRTPDTMFSrc: * @element: the parent element. * * The opaque #GstRTPDTMFSrc data structure. */ struct _GstRTPDTMFSrc { GstElement element; GstPad *srcpad; GstRTPDTMFPayload *payload; GstClockTime next_ts; guint32 clock_rate; guint pt; guint ssrc; guint current_ssrc; gboolean first_packet; }; struct _GstRTPDTMFSrcClass { GstElementClass parent_class; }; GType gst_rtp_dtmf_src_get_type (void); G_END_DECLS #endif /* __GST_RTP_DTMF_SRC_H__ */