1 files changed, 116 insertions, 0 deletions
diff --git a/gst/rtp/gstrtppcmupay.c b/gst/rtp/gstrtppcmupay.c
new file mode 100755
index 0000000..3d69cb3
--- /dev/null
+++ b/gst/rtp/gstrtppcmupay.c
@@ -0,0 +1,116 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ * Copyright (C) <2005> Edgard Lima <edgard.lima@indt.org.br>
+ * Copyright (C) <2005> Nokia Corporation <kai.vehmanen@nokia.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <gst/rtp/gstrtpbuffer.h>
+
+#include "gstrtppcmupay.h"
+
+static GstStaticPadTemplate gst_rtp_pcmu_pay_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("audio/x-mulaw, channels=(int)1, rate=(int)8000")
+    );
+
+static GstStaticPadTemplate gst_rtp_pcmu_pay_src_template =
+    GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS ("application/x-rtp, "
+        "media = (string) \"audio\", "
+        "payload = (int) " GST_RTP_PAYLOAD_PCMU_STRING ", "
+        "clock-rate = (int) 8000, " "encoding-name = (string) \"PCMU\"; "
+        "application/x-rtp, "
+        "media = (string) \"audio\", "
+        "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
+        "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"PCMU\"")
+    );
+
+static gboolean gst_rtp_pcmu_pay_setcaps (GstRTPBasePayload * payload,
+    GstCaps * caps);
+
+#define gst_rtp_pcmu_pay_parent_class parent_class
+G_DEFINE_TYPE (GstRtpPcmuPay, gst_rtp_pcmu_pay,
+    GST_TYPE_RTP_BASE_AUDIO_PAYLOAD);
+
+static void
+gst_rtp_pcmu_pay_class_init (GstRtpPcmuPayClass * klass)
+{
+  GstElementClass *gstelement_class;
+  GstRTPBasePayloadClass *gstrtpbasepayload_class;
+
+  gstelement_class = (GstElementClass *) klass;
+  gstrtpbasepayload_class = (GstRTPBasePayloadClass *) klass;
+
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&gst_rtp_pcmu_pay_sink_template));
+  gst_element_class_add_pad_template (gstelement_class,
+      gst_static_pad_template_get (&gst_rtp_pcmu_pay_src_template));
+
+  gst_element_class_set_static_metadata (gstelement_class, "RTP PCMU payloader",
+      "Codec/Payloader/Network/RTP",
+      "Payload-encodes PCMU audio into a RTP packet",
+      "Edgard Lima <edgard.lima@indt.org.br>");
+
+  gstrtpbasepayload_class->set_caps = gst_rtp_pcmu_pay_setcaps;
+}
+
+static void
+gst_rtp_pcmu_pay_init (GstRtpPcmuPay * rtppcmupay)
+{
+  GstRTPBaseAudioPayload *rtpbaseaudiopayload;
+
+  rtpbaseaudiopayload = GST_RTP_BASE_AUDIO_PAYLOAD (rtppcmupay);
+
+  GST_RTP_BASE_PAYLOAD (rtppcmupay)->clock_rate = 8000;
+
+  /* tell rtpbaseaudiopayload that this is a sample based codec */
+  gst_rtp_base_audio_payload_set_sample_based (rtpbaseaudiopayload);
+
+  /* octet-per-sample is 1 for PCM */
+  gst_rtp_base_audio_payload_set_sample_options (rtpbaseaudiopayload, 1);
+}
+
+static gboolean
+gst_rtp_pcmu_pay_setcaps (GstRTPBasePayload * payload, GstCaps * caps)
+{
+  gboolean res;
+
+  payload->pt = GST_RTP_PAYLOAD_PCMU;
+
+  gst_rtp_base_payload_set_options (payload, "audio", FALSE, "PCMU", 8000);
+  res = gst_rtp_base_payload_set_outcaps (payload, NULL);
+
+  return res;
+}
+
+gboolean
+gst_rtp_pcmu_pay_plugin_init (GstPlugin * plugin)
+{
+  return gst_element_register (plugin, "rtppcmupay",
+      GST_RANK_SECONDARY, GST_TYPE_RTP_PCMU_PAY);
+}