2 * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
3 * Copyright (C) <2005> Zeeshan Ali <zeenix@gmail.com>
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.
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.
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., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
26 #include <gst/rtp/gstrtpbuffer.h>
27 #include "gstrtpgsmdepay.h"
29 /* elementfactory information */
30 static GstElementDetails gst_rtp_gsmdepay_details = {
32 "Codec/Depayr/Network",
33 "Extracts GSM audio from RTP packets",
34 "Zeeshan Ali <zeenix@gmail.com>"
37 /* RTPGSMDepay signals and args */
44 static GstStaticPadTemplate gst_rtp_gsm_depay_src_template =
45 GST_STATIC_PAD_TEMPLATE ("src",
48 GST_STATIC_CAPS ("audio/x-gsm, " "rate = (int) 8000, " "channels = 1")
51 static GstStaticPadTemplate gst_rtp_gsm_depay_sink_template =
52 GST_STATIC_PAD_TEMPLATE ("sink",
55 GST_STATIC_CAPS ("application/x-rtp, "
56 "media = (string) \"audio\", "
57 "clock-rate = (int) 8000, " "encoding-name = (string) \"GSM\"")
60 static GstBuffer *gst_rtp_gsm_depay_process (GstBaseRTPDepayload * _depayload,
62 static gboolean gst_rtp_gsm_depay_setcaps (GstBaseRTPDepayload * _depayload,
65 GST_BOILERPLATE (GstRTPGSMDepay, gst_rtp_gsm_depay, GstBaseRTPDepayload,
66 GST_TYPE_BASE_RTP_DEPAYLOAD);
69 gst_rtp_gsm_depay_base_init (gpointer klass)
71 GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
73 gst_element_class_add_pad_template (element_class,
74 gst_static_pad_template_get (&gst_rtp_gsm_depay_src_template));
75 gst_element_class_add_pad_template (element_class,
76 gst_static_pad_template_get (&gst_rtp_gsm_depay_sink_template));
77 gst_element_class_set_details (element_class, &gst_rtp_gsmdepay_details);
81 gst_rtp_gsm_depay_class_init (GstRTPGSMDepayClass * klass)
83 GObjectClass *gobject_class;
84 GstElementClass *gstelement_class;
85 GstBaseRTPDepayloadClass *gstbasertp_depayload_class;
87 gobject_class = (GObjectClass *) klass;
88 gstelement_class = (GstElementClass *) klass;
89 gstbasertp_depayload_class = (GstBaseRTPDepayloadClass *) klass;
91 parent_class = g_type_class_peek_parent (klass);
93 gstbasertp_depayload_class->process = gst_rtp_gsm_depay_process;
94 gstbasertp_depayload_class->set_caps = gst_rtp_gsm_depay_setcaps;
98 gst_rtp_gsm_depay_init (GstRTPGSMDepay * rtpgsmdepay,
99 GstRTPGSMDepayClass * klass)
101 GST_BASE_RTP_DEPAYLOAD (rtpgsmdepay)->clock_rate = 8000;
105 gst_rtp_gsm_depay_setcaps (GstBaseRTPDepayload * _depayload, GstCaps * caps)
110 srccaps = gst_static_pad_template_get_caps (&gst_rtp_gsm_depay_src_template);
111 ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (_depayload), srccaps);
113 gst_caps_unref (srccaps);
118 gst_rtp_gsm_depay_process (GstBaseRTPDepayload * _depayload, GstBuffer * buf)
120 GstBuffer *outbuf = NULL;
124 GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d",
125 GST_BUFFER_SIZE (buf),
126 gst_rtp_buffer_get_marker (buf),
127 gst_rtp_buffer_get_timestamp (buf), gst_rtp_buffer_get_seq (buf));
129 payload_len = gst_rtp_buffer_get_payload_len (buf);
130 payload = gst_rtp_buffer_get_payload (buf);
132 outbuf = gst_buffer_new_and_alloc (payload_len);
133 memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
138 gst_rtp_gsm_depay_plugin_init (GstPlugin * plugin)
140 return gst_element_register (plugin, "rtpgsmdepay",
141 GST_RANK_NONE, GST_TYPE_RTP_GSM_DEPAY);