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authorWim Taymans <wim.taymans@gmail.com>2005-08-18 10:33:15 +0000
committerWim Taymans <wim.taymans@gmail.com>2005-08-18 10:33:15 +0000
commit9a5c8cd25ef8fe33fb8b189f88725bfac5c68768 (patch)
tree8f14b039669348a7bb805c680293f30a4c560828 /gst/rtp/gstrtpmpapay.c
parenta6c633b9ab883eee91c855dbec9a620acbdb944a (diff)
gst/rtp/: Remove old code that is now in gst-libs/gst/rtp/.
Original commit message from CVS: * gst/rtp/Makefile.am: * gst/rtp/gstrtp-common.h: * gst/rtp/gstrtp.c: (plugin_init): * gst/rtp/gstrtpL16enc.h: * gst/rtp/gstrtpdec.c: (gst_rtpdec_get_type), (gst_rtpdec_class_init), (gst_rtpdec_chain_rtp), (gst_rtpdec_chain_rtcp), (gst_rtpdec_change_state), (gst_rtpdec_plugin_init): * gst/rtp/gstrtph263pdec.c: (gst_rtph263pdec_get_type), (gst_rtph263pdec_base_init), (gst_rtph263pdec_class_init), (gst_rtph263pdec_init), (gst_rtph263pdec_chain), (gst_rtph263pdec_set_property), (gst_rtph263pdec_get_property), (gst_rtph263pdec_change_state), (gst_rtph263pdec_plugin_init): * gst/rtp/gstrtph263pdec.h: * gst/rtp/gstrtph263penc.c: (gst_rtph263penc_get_type), (gst_rtph263penc_base_init), (gst_rtph263penc_class_init), (gst_rtph263penc_init), (gst_rtph263penc_flush), (gst_rtph263penc_chain), (gst_rtph263penc_set_property), (gst_rtph263penc_get_property), (gst_rtph263penc_change_state), (gst_rtph263penc_plugin_init): * gst/rtp/gstrtph263penc.h: * gst/rtp/gstrtpmpadec.c: (gst_rtpmpadec_get_type), (gst_rtpmpadec_base_init), (gst_rtpmpadec_class_init), (gst_rtpmpadec_init), (gst_rtpmpadec_chain), (gst_rtpmpadec_set_property), (gst_rtpmpadec_get_property), (gst_rtpmpadec_change_state), (gst_rtpmpadec_plugin_init): * gst/rtp/gstrtpmpadec.h: * gst/rtp/gstrtpmpaenc.c: (gst_rtpmpaenc_get_type), (gst_rtpmpaenc_base_init), (gst_rtpmpaenc_class_init), (gst_rtpmpaenc_init), (gst_rtpmpaenc_flush), (gst_rtpmpaenc_chain), (gst_rtpmpaenc_set_property), (gst_rtpmpaenc_get_property), (gst_rtpmpaenc_change_state), (gst_rtpmpaenc_plugin_init): * gst/rtp/gstrtpmpaenc.h: * gst/rtp/rtp-packet.c: * gst/rtp/rtp-packet.h: Remove old code that is now in gst-libs/gst/rtp/. Added some payload/depayloaders. * gst/udp/gstudpsink.c: (gst_udpsink_class_init): Fix port number range.
Diffstat (limited to 'gst/rtp/gstrtpmpapay.c')
-rw-r--r--gst/rtp/gstrtpmpapay.c331
1 files changed, 331 insertions, 0 deletions
diff --git a/gst/rtp/gstrtpmpapay.c b/gst/rtp/gstrtpmpapay.c
new file mode 100644
index 00000000..6c77291f
--- /dev/null
+++ b/gst/rtp/gstrtpmpapay.c
@@ -0,0 +1,331 @@
+/* GStreamer
+ * Copyright (C) <2005> Wim Taymans <wim@fluendo.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
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <string.h>
+
+#include <gst/rtp/gstrtpbuffer.h>
+
+#include "gstrtpmpaenc.h"
+
+/* elementfactory information */
+static GstElementDetails gst_rtp_mpaenc_details = {
+ "RTP packet parser",
+ "Codec/Parser/Network",
+ "Extracts MPEG audio from RTP packets",
+ "Wim Taymans <wim@fluendo.com>"
+};
+
+/* RtpMPAEnc signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+#define DEFAULT_MTU 1024
+
+enum
+{
+ PROP_0,
+ PROP_MTU
+};
+
+static GstStaticPadTemplate gst_rtpmpaenc_sink_template =
+GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/mpeg")
+ );
+
+static GstStaticPadTemplate gst_rtpmpaenc_src_template =
+GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("application/x-rtp")
+ );
+
+
+static void gst_rtpmpaenc_class_init (GstRtpMPAEncClass * klass);
+static void gst_rtpmpaenc_base_init (GstRtpMPAEncClass * klass);
+static void gst_rtpmpaenc_init (GstRtpMPAEnc * rtpmpaenc);
+
+static GstFlowReturn gst_rtpmpaenc_chain (GstPad * pad, GstBuffer * buffer);
+
+static void gst_rtpmpaenc_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_rtpmpaenc_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstElementStateReturn gst_rtpmpaenc_change_state (GstElement * element);
+
+static GstElementClass *parent_class = NULL;
+
+static GType
+gst_rtpmpaenc_get_type (void)
+{
+ static GType rtpmpaenc_type = 0;
+
+ if (!rtpmpaenc_type) {
+ static const GTypeInfo rtpmpaenc_info = {
+ sizeof (GstRtpMPAEncClass),
+ (GBaseInitFunc) gst_rtpmpaenc_base_init,
+ NULL,
+ (GClassInitFunc) gst_rtpmpaenc_class_init,
+ NULL,
+ NULL,
+ sizeof (GstRtpMPAEnc),
+ 0,
+ (GInstanceInitFunc) gst_rtpmpaenc_init,
+ };
+
+ rtpmpaenc_type =
+ g_type_register_static (GST_TYPE_ELEMENT, "GstRtpMPAEnc",
+ &rtpmpaenc_info, 0);
+ }
+ return rtpmpaenc_type;
+}
+
+static void
+gst_rtpmpaenc_base_init (GstRtpMPAEncClass * klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rtpmpaenc_src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rtpmpaenc_sink_template));
+
+ gst_element_class_set_details (element_class, &gst_rtp_mpaenc_details);
+}
+
+static void
+gst_rtpmpaenc_class_init (GstRtpMPAEncClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ gobject_class->set_property = gst_rtpmpaenc_set_property;
+ gobject_class->get_property = gst_rtpmpaenc_get_property;
+
+ g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MTU,
+ g_param_spec_uint ("mtu", "MTU",
+ "Maximum size of one packet",
+ 28, G_MAXUINT, DEFAULT_MTU, G_PARAM_READWRITE));
+
+ gstelement_class->change_state = gst_rtpmpaenc_change_state;
+}
+
+static void
+gst_rtpmpaenc_init (GstRtpMPAEnc * rtpmpaenc)
+{
+ rtpmpaenc->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get
+ (&gst_rtpmpaenc_src_template), "src");
+ gst_element_add_pad (GST_ELEMENT (rtpmpaenc), rtpmpaenc->srcpad);
+
+ rtpmpaenc->sinkpad =
+ gst_pad_new_from_template (gst_static_pad_template_get
+ (&gst_rtpmpaenc_sink_template), "sink");
+ gst_pad_set_chain_function (rtpmpaenc->sinkpad, gst_rtpmpaenc_chain);
+ gst_element_add_pad (GST_ELEMENT (rtpmpaenc), rtpmpaenc->sinkpad);
+
+ rtpmpaenc->adapter = gst_adapter_new ();
+ rtpmpaenc->mtu = DEFAULT_MTU;
+}
+
+static GstFlowReturn
+gst_rtpmpaenc_flush (GstRtpMPAEnc * rtpmpaenc)
+{
+ guint avail;
+ GstBuffer *outbuf;
+ GstFlowReturn ret;
+ guint16 frag_offset;
+
+ /* the data available in the adapter is either smaller
+ * than the MTU or bigger. In the case it is smaller, the complete
+ * adapter contents can be put in one packet. In the case the
+ * adapter has more than one MTU, we need to split the MPA data
+ * over multiple packets. The frag_offset in each packet header
+ * needs to be updated with the position in the MPA frame. */
+ avail = gst_adapter_available (rtpmpaenc->adapter);
+
+ ret = GST_FLOW_OK;
+
+ frag_offset = 0;
+ while (avail > 0) {
+ guint towrite;
+ guint8 *payload;
+ guint8 *data;
+ guint payload_len;
+ guint packet_len;
+
+ /* this will be the total lenght of the packet */
+ packet_len = gst_rtpbuffer_calc_packet_len (4 + avail, 0, 0);
+
+ /* fill one MTU or all available bytes */
+ towrite = MIN (packet_len, rtpmpaenc->mtu);
+
+ /* this is the payload length */
+ payload_len = gst_rtpbuffer_calc_payload_len (towrite, 0, 0);
+
+ /* create buffer to hold the payload */
+ outbuf = gst_rtpbuffer_new_allocate (payload_len, 0, 0);
+
+ payload_len -= 4;
+
+ /* set timestamp */
+ gst_rtpbuffer_set_timestamp (outbuf,
+ rtpmpaenc->first_ts * 90000 / GST_SECOND);
+ gst_rtpbuffer_set_payload_type (outbuf, GST_RTP_PAYLOAD_MPA);
+ gst_rtpbuffer_set_seq (outbuf, rtpmpaenc->seqnum++);
+
+ payload = gst_rtpbuffer_get_payload (outbuf);
+ payload[0] = 0;
+ payload[1] = 0;
+ payload[2] = frag_offset >> 8;
+ payload[3] = frag_offset & 0xff;
+
+ data = (guint8 *) gst_adapter_peek (rtpmpaenc->adapter, payload_len);
+ memcpy (&payload[4], data, payload_len);
+ gst_adapter_flush (rtpmpaenc->adapter, payload_len);
+
+ GST_BUFFER_TIMESTAMP (outbuf) = rtpmpaenc->first_ts;
+
+ ret = gst_pad_push (rtpmpaenc->srcpad, outbuf);
+
+ avail -= payload_len;
+ frag_offset += payload_len;
+ }
+
+ return ret;
+}
+
+static GstFlowReturn
+gst_rtpmpaenc_chain (GstPad * pad, GstBuffer * buffer)
+{
+ GstRtpMPAEnc *rtpmpaenc;
+ GstFlowReturn ret;
+ guint size, avail;
+ guint packet_len;
+
+ rtpmpaenc = GST_RTP_MPA_ENC (gst_pad_get_parent (pad));
+
+ size = GST_BUFFER_SIZE (buffer);
+ avail = gst_adapter_available (rtpmpaenc->adapter);
+
+ /* get packet length of previous data and this new data,
+ * payload length includes a 4 byte header */
+ packet_len = gst_rtpbuffer_calc_packet_len (4 + avail + size, 0, 0);
+
+ /* if this buffer is going to overflow the packet, flush what we
+ * have. */
+ if (packet_len > rtpmpaenc->mtu) {
+ ret = gst_rtpmpaenc_flush (rtpmpaenc);
+ avail = 0;
+ }
+
+ gst_adapter_push (rtpmpaenc->adapter, buffer);
+
+ if (avail == 0) {
+ rtpmpaenc->first_ts = GST_BUFFER_TIMESTAMP (buffer);
+ }
+ gst_object_unref (rtpmpaenc);
+
+ ret = GST_FLOW_OK;
+
+ return ret;
+}
+
+static void
+gst_rtpmpaenc_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstRtpMPAEnc *rtpmpaenc;
+
+ rtpmpaenc = GST_RTP_MPA_ENC (object);
+
+ switch (prop_id) {
+ case PROP_MTU:
+ rtpmpaenc->mtu = g_value_get_uint (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_rtpmpaenc_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
+{
+ GstRtpMPAEnc *rtpmpaenc;
+
+ rtpmpaenc = GST_RTP_MPA_ENC (object);
+
+ switch (prop_id) {
+ case PROP_MTU:
+ g_value_set_uint (value, rtpmpaenc->mtu);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstElementStateReturn
+gst_rtpmpaenc_change_state (GstElement * element)
+{
+ GstRtpMPAEnc *rtpmpaenc;
+ gint transition;
+ GstElementStateReturn ret;
+
+ rtpmpaenc = GST_RTP_MPA_ENC (element);
+ transition = GST_STATE_TRANSITION (element);
+
+ switch (transition) {
+ case GST_STATE_NULL_TO_READY:
+ break;
+ case GST_STATE_READY_TO_PAUSED:
+ rtpmpaenc->seqnum = 0;
+ break;
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+ switch (transition) {
+ case GST_STATE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+ return ret;
+}
+
+gboolean
+gst_rtpmpaenc_plugin_init (GstPlugin * plugin)
+{
+ return gst_element_register (plugin, "rtpmpaenc",
+ GST_RANK_NONE, GST_TYPE_RTP_MPA_ENC);
+}