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author | Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> | 2011-12-07 15:13:11 -0200 |
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committer | Tim-Philipp Müller <tim@centricular.com> | 2016-02-17 14:58:00 +0000 |
commit | c207bdf1e7ac5ea4010a9268c6683796fa385d0e (patch) | |
tree | 724c8c916c5f6e2853c3ac7bc6b2ddcaf4765884 /gst/rtp/gstrtpopuspay.c | |
download | gstreamer-plugins-good-c207bdf1e7ac5ea4010a9268c6683796fa385d0e.tar.gz |
Adding opus RTP payloader/depayloader element
Adding OPUS RTP module based on the current draft:
http://tools.ietf.org/id/draft-spittka-payload-rtp-opus-00.txt
https://bugzilla.gnome.org/show_bug.cgi?id=664817
Diffstat (limited to 'gst/rtp/gstrtpopuspay.c')
-rw-r--r-- | gst/rtp/gstrtpopuspay.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/gst/rtp/gstrtpopuspay.c b/gst/rtp/gstrtpopuspay.c new file mode 100644 index 000000000..9724e6276 --- /dev/null +++ b/gst/rtp/gstrtpopuspay.c @@ -0,0 +1,140 @@ +/* + * Opus Payloader Gst Element + * + * @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> + * + * 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 <string.h> + +#include <gst/rtp/gstrtpbuffer.h> + +#include "gstrtpopuspay.h" + +GST_DEBUG_CATEGORY_STATIC (rtpopuspay_debug); +#define GST_CAT_DEFAULT (rtpopuspay_debug) + + +static GstStaticPadTemplate gst_rtp_opus_pay_sink_template = +GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/x-opus") + ); + +static GstStaticPadTemplate gst_rtp_opus_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_DYNAMIC_STRING ", " + "clock-rate = (int) 48000, " + "encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"") + ); + +static gboolean gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload, + GstCaps * caps); +static GstFlowReturn gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload * + payload, GstBuffer * buffer); + +GST_BOILERPLATE (GstRtpOPUSPay, gst_rtp_opus_pay, GstBaseRTPPayload, + GST_TYPE_BASE_RTP_PAYLOAD); + +static void +gst_rtp_opus_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_opus_pay_src_template)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_rtp_opus_pay_sink_template)); + + gst_element_class_set_details_simple (element_class, + "RTP Opus payloader", + "Codec/Payloader/Network/RTP", + "Puts Opus audio in RTP packets", + "Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>"); +} + +static void +gst_rtp_opus_pay_class_init (GstRtpOPUSPayClass * klass) +{ + GstBaseRTPPayloadClass *gstbasertppayload_class; + + gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass; + + gstbasertppayload_class->set_caps = gst_rtp_opus_pay_setcaps; + gstbasertppayload_class->handle_buffer = gst_rtp_opus_pay_handle_buffer; + + GST_DEBUG_CATEGORY_INIT (rtpopuspay_debug, "rtpopuspay", 0, + "Opus RTP Payloader"); +} + +static void +gst_rtp_opus_pay_init (GstRtpOPUSPay * rtpopuspay, GstRtpOPUSPayClass * klass) +{ +} + +static gboolean +gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps) +{ + gboolean res; + gchar *capsstr; + + capsstr = gst_caps_to_string (caps); + + gst_basertppayload_set_options (payload, "audio", FALSE, + "X-GST-OPUS-DRAFT-SPITTKA-00", 48000); + res = + gst_basertppayload_set_outcaps (payload, "caps", G_TYPE_STRING, capsstr, + NULL); + g_free (capsstr); + + return res; +} + +static GstFlowReturn +gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload * basepayload, + GstBuffer * buffer) +{ + GstBuffer *outbuf; + GstClockTime timestamp; + + guint size; + guint8 *data; + guint8 *payload; + + size = GST_BUFFER_SIZE (buffer); + data = GST_BUFFER_DATA (buffer); + timestamp = GST_BUFFER_TIMESTAMP (buffer); + + outbuf = gst_rtp_buffer_new_allocate (size, 0, 0); + payload = gst_rtp_buffer_get_payload (outbuf); + + memcpy (payload, data, size); + + gst_rtp_buffer_set_marker (outbuf, FALSE); + GST_BUFFER_TIMESTAMP (outbuf) = timestamp; + + return gst_basertppayload_push (basepayload, outbuf); +} |