diff options
author | Wim Taymans <wim.taymans@gmail.com> | 2007-02-18 13:24:26 +0000 |
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committer | Wim Taymans <wim.taymans@gmail.com> | 2007-02-18 13:24:26 +0000 |
commit | bd4b1f680c78da051459cf93efe4777e9f716a48 (patch) | |
tree | 8d633f87a23e096a740cbc3f52874e31af6b9ed4 /gst/rtp/gstrtpmp2tpay.c | |
parent | 7fd025043d321be2377ebe5f964cacabf17cb764 (diff) |
gst/rtp/: Added simple mpeg transport stream payloader.
Original commit message from CVS:
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c: (plugin_init):
* gst/rtp/gstrtpmp2tpay.c: (gst_rtp_mp2t_pay_base_init),
(gst_rtp_mp2t_pay_class_init), (gst_rtp_mp2t_pay_init),
(gst_rtp_mp2t_pay_setcaps), (gst_rtp_mp2t_pay_handle_buffer),
(gst_rtp_mp2t_pay_plugin_init):
* gst/rtp/gstrtpmp2tpay.h:
Added simple mpeg transport stream payloader.
Diffstat (limited to 'gst/rtp/gstrtpmp2tpay.c')
-rw-r--r-- | gst/rtp/gstrtpmp2tpay.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/gst/rtp/gstrtpmp2tpay.c b/gst/rtp/gstrtpmp2tpay.c new file mode 100644 index 00000000..acc66d64 --- /dev/null +++ b/gst/rtp/gstrtpmp2tpay.c @@ -0,0 +1,159 @@ +/* GStreamer + * Copyright (C) <2007> 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 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. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdlib.h> +#include <string.h> +#include <gst/rtp/gstrtpbuffer.h> + +#include "gstrtpmp2tpay.h" + +/* elementfactory information */ +static const GstElementDetails gst_rtp_mp2t_pay_details = +GST_ELEMENT_DETAILS ("RTP MP2T audio payloader", + "Codec/Payloader/Network", + "Payload-encodes MPEG2 TS into RTP packets (RFC 2250)", + "Wim Taymans <wim@fluendo.com>"); + +static GstStaticPadTemplate gst_rtp_mp2t_pay_sink_template = +GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/mpegts," + "packetsize=(int)188," "systemstream=(boolean)true") + ); + +static GstStaticPadTemplate gst_rtp_mp2t_pay_src_template = +GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("application/x-rtp, " + "media = (string) \"video\", " + "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", " + "clock-rate = (int) 90000, " "encoding-name = (string) \"MP2T-ES\"") + ); + +static gboolean gst_rtp_mp2t_pay_setcaps (GstBaseRTPPayload * payload, + GstCaps * caps); +static GstFlowReturn gst_rtp_mp2t_pay_handle_buffer (GstBaseRTPPayload * + payload, GstBuffer * buffer); + +GST_BOILERPLATE (GstRTPMP2TPay, gst_rtp_mp2t_pay, GstBaseRTPPayload, + GST_TYPE_BASE_RTP_PAYLOAD); + +static void +gst_rtp_mp2t_pay_base_init (gpointer klass) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_rtp_mp2t_pay_sink_template)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_rtp_mp2t_pay_src_template)); + gst_element_class_set_details (element_class, &gst_rtp_mp2t_pay_details); +} + +static void +gst_rtp_mp2t_pay_class_init (GstRTPMP2TPayClass * klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + GstBaseRTPPayloadClass *gstbasertppayload_class; + + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; + gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass; + + gstbasertppayload_class->set_caps = gst_rtp_mp2t_pay_setcaps; + gstbasertppayload_class->handle_buffer = gst_rtp_mp2t_pay_handle_buffer; +} + +static void +gst_rtp_mp2t_pay_init (GstRTPMP2TPay * rtpmp2tpay, GstRTPMP2TPayClass * klass) +{ + GST_BASE_RTP_PAYLOAD (rtpmp2tpay)->clock_rate = 90000; + GST_BASE_RTP_PAYLOAD_PT (rtpmp2tpay) = GST_RTP_PAYLOAD_MP2T; +} + +static gboolean +gst_rtp_mp2t_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps) +{ + const char *stname; + GstStructure *structure; + + structure = gst_caps_get_structure (caps, 0); + + stname = gst_structure_get_name (structure); + + gst_basertppayload_set_options (payload, "video", TRUE, "MP2T-ES", 90000); + gst_basertppayload_set_outcaps (payload, NULL); + + return TRUE; +} + +static GstFlowReturn +gst_rtp_mp2t_pay_handle_buffer (GstBaseRTPPayload * basepayload, + GstBuffer * buffer) +{ + GstRTPMP2TPay *rtpmp2tpay; + guint size, payload_len; + GstBuffer *outbuf; + guint8 *payload, *data; + GstClockTime timestamp; + GstFlowReturn ret; + + rtpmp2tpay = GST_RTP_MP2T_PAY (basepayload); + + size = GST_BUFFER_SIZE (buffer); + data = GST_BUFFER_DATA (buffer); + timestamp = GST_BUFFER_TIMESTAMP (buffer); + + /* FIXME, only one MP2T frame per RTP packet for now */ + payload_len = size; + + outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0); + + /* copy timestamp */ + GST_BUFFER_TIMESTAMP (outbuf) = timestamp; + + /* get payload */ + payload = gst_rtp_buffer_get_payload (outbuf); + + /* copy data in payload */ + memcpy (payload, data, size); + + gst_buffer_unref (buffer); + + GST_DEBUG_OBJECT (rtpmp2tpay, "pushing buffer of size %d", + GST_BUFFER_SIZE (outbuf)); + + ret = gst_basertppayload_push (basepayload, outbuf); + + return ret; +} + +gboolean +gst_rtp_mp2t_pay_plugin_init (GstPlugin * plugin) +{ + return gst_element_register (plugin, "rtpmp2tpay", + GST_RANK_NONE, GST_TYPE_RTP_MP2T_PAY); +} |