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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
This commit is contained in:
Danilo Cesar Lemes de Paula
Tim-Philipp Müller
commit
c207bdf1e7
4 changed files with 378 additions and 0 deletions
123
gst/rtp/gstrtpopusdepay.c
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123
gst/rtp/gstrtpopusdepay.c
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/*
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* Opus Depayloader Gst Element
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*
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* @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include "gstrtpopusdepay.h"
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GST_DEBUG_CATEGORY_STATIC (rtpopusdepay_debug);
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#define GST_CAT_DEFAULT (rtpopusdepay_debug)
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static GstStaticPadTemplate gst_rtp_opus_depay_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp, "
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"media = (string) \"audio\", "
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"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ","
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"clock-rate = (int) 48000, "
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"encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"")
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);
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static GstStaticPadTemplate gst_rtp_opus_depay_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-opus")
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);
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static GstBuffer *gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload,
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GstBuffer * buf);
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static gboolean gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload,
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GstCaps * caps);
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GST_BOILERPLATE (GstRTPOpusDepay, gst_rtp_opus_depay, GstBaseRTPDepayload,
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GST_TYPE_BASE_RTP_DEPAYLOAD);
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static void
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gst_rtp_opus_depay_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_opus_depay_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_opus_depay_sink_template));
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gst_element_class_set_details_simple (element_class,
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"RTP Opus packet depayloader", "Codec/Depayloader/Network/RTP",
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"Extracts Opus audio from RTP packets",
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"Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>");
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}
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static void
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gst_rtp_opus_depay_class_init (GstRTPOpusDepayClass * klass)
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{
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GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
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gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
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gstbasertpdepayload_class->process = gst_rtp_opus_depay_process;
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gstbasertpdepayload_class->set_caps = gst_rtp_opus_depay_setcaps;
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GST_DEBUG_CATEGORY_INIT (rtpopusdepay_debug, "rtpopusdepay", 0,
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"Opus RTP Depayloader");
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}
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static void
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gst_rtp_opus_depay_init (GstRTPOpusDepay * rtpopusdepay,
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GstRTPOpusDepayClass * klass)
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{
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}
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static gboolean
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gst_rtp_opus_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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{
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GstCaps *srccaps;
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gboolean ret;
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srccaps = gst_caps_new_simple ("audio/x-opus", NULL);
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ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps);
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GST_DEBUG_OBJECT (depayload,
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"set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret);
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gst_caps_unref (srccaps);
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depayload->clock_rate = 48000;
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return ret;
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}
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static GstBuffer *
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gst_rtp_opus_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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{
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GstBuffer *outbuf;
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outbuf = gst_rtp_buffer_get_payload_buffer (buf);
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return outbuf;
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}
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57
gst/rtp/gstrtpopusdepay.h
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57
gst/rtp/gstrtpopusdepay.h
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@ -0,0 +1,57 @@
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/*
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* Opus Depayloader Gst Element
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*
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* @author: Danilo Cesar Lemes de Paula <danilo.eu@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_RTP_OPUS_DEPAY_H__
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#define __GST_RTP_OPUS_DEPAY_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstbasertpdepayload.h>
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G_BEGIN_DECLS typedef struct _GstRTPOpusDepay GstRTPOpusDepay;
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typedef struct _GstRTPOpusDepayClass GstRTPOpusDepayClass;
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#define GST_TYPE_RTP_OPUS_DEPAY \
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(gst_rtp_opus_depay_get_type())
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#define GST_RTP_OPUS_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_OPUS_DEPAY,GstRTPOpusDepay))
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#define GST_RTP_OPUS_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_OPUS_DEPAY,GstRTPOpusDepayClass))
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#define GST_IS_RTP_OPUS_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_OPUS_DEPAY))
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#define GST_IS_RTP_OPUS_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_OPUS_DEPAY))
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struct _GstRTPOpusDepay
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{
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GstBaseRTPDepayload depayload;
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};
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struct _GstRTPOpusDepayClass
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{
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GstBaseRTPDepayloadClass parent_class;
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};
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GType gst_rtp_opus_depay_get_type (void);
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G_END_DECLS
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#endif /* __GST_RTP_OPUS_DEPAY_H__ */
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140
gst/rtp/gstrtpopuspay.c
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140
gst/rtp/gstrtpopuspay.c
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@ -0,0 +1,140 @@
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/*
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* Opus Payloader Gst Element
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*
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* @author: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include "gstrtpopuspay.h"
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GST_DEBUG_CATEGORY_STATIC (rtpopuspay_debug);
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#define GST_CAT_DEFAULT (rtpopuspay_debug)
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static GstStaticPadTemplate gst_rtp_opus_pay_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-opus")
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);
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static GstStaticPadTemplate gst_rtp_opus_pay_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp, "
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"media = (string) \"audio\", "
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"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
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"clock-rate = (int) 48000, "
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"encoding-name = (string) \"X-GST-OPUS-DRAFT-SPITTKA-00\"")
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);
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static gboolean gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload,
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GstCaps * caps);
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static GstFlowReturn gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload *
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payload, GstBuffer * buffer);
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GST_BOILERPLATE (GstRtpOPUSPay, gst_rtp_opus_pay, GstBaseRTPPayload,
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GST_TYPE_BASE_RTP_PAYLOAD);
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static void
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gst_rtp_opus_pay_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_opus_pay_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_opus_pay_sink_template));
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gst_element_class_set_details_simple (element_class,
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"RTP Opus payloader",
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"Codec/Payloader/Network/RTP",
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"Puts Opus audio in RTP packets",
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"Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk>");
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}
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static void
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gst_rtp_opus_pay_class_init (GstRtpOPUSPayClass * klass)
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{
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GstBaseRTPPayloadClass *gstbasertppayload_class;
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gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
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gstbasertppayload_class->set_caps = gst_rtp_opus_pay_setcaps;
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gstbasertppayload_class->handle_buffer = gst_rtp_opus_pay_handle_buffer;
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GST_DEBUG_CATEGORY_INIT (rtpopuspay_debug, "rtpopuspay", 0,
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"Opus RTP Payloader");
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}
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static void
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gst_rtp_opus_pay_init (GstRtpOPUSPay * rtpopuspay, GstRtpOPUSPayClass * klass)
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{
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}
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static gboolean
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gst_rtp_opus_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
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{
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gboolean res;
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gchar *capsstr;
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capsstr = gst_caps_to_string (caps);
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gst_basertppayload_set_options (payload, "audio", FALSE,
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"X-GST-OPUS-DRAFT-SPITTKA-00", 48000);
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res =
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gst_basertppayload_set_outcaps (payload, "caps", G_TYPE_STRING, capsstr,
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NULL);
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g_free (capsstr);
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return res;
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}
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static GstFlowReturn
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gst_rtp_opus_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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GstBuffer * buffer)
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{
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GstBuffer *outbuf;
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GstClockTime timestamp;
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guint size;
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guint8 *data;
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guint8 *payload;
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size = GST_BUFFER_SIZE (buffer);
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data = GST_BUFFER_DATA (buffer);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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outbuf = gst_rtp_buffer_new_allocate (size, 0, 0);
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payload = gst_rtp_buffer_get_payload (outbuf);
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memcpy (payload, data, size);
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gst_rtp_buffer_set_marker (outbuf, FALSE);
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GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
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return gst_basertppayload_push (basepayload, outbuf);
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}
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58
gst/rtp/gstrtpopuspay.h
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58
gst/rtp/gstrtpopuspay.h
Normal file
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@ -0,0 +1,58 @@
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/*
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* Opus Payloader Gst Element
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*
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* @author: Danilo Cesar Lemes de Paula <danilo.eu@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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* Library General Public License for more details.
|
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*
|
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* You should have received a copy of the GNU Library General Public
|
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* License along with this library; if not, write to the
|
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_RTP_OPUS_PAY_H__
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#define __GST_RTP_OPUS_PAY_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstbasertppayload.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_OPUS_PAY \
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(gst_rtp_opus_pay_get_type())
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#define GST_RTP_OPUS_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_OPUS_PAY,GstRtpOPUSPay))
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#define GST_RTP_OPUS_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_OPUS_PAY,GstRtpOPUSPayClass))
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#define GST_IS_RTP_OPUS_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_OPUS_PAY))
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#define GST_IS_RTP_OPUS_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_OPUS_PAY))
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typedef struct _GstRtpOPUSPay GstRtpOPUSPay;
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typedef struct _GstRtpOPUSPayClass GstRtpOPUSPayClass;
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struct _GstRtpOPUSPay
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{
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GstBaseRTPPayload payload;
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};
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struct _GstRtpOPUSPayClass
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{
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GstBaseRTPPayloadClass parent_class;
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};
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GType gst_rtp_opus_pay_get_type (void);
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G_END_DECLS
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#endif /* __GST_RTP_OPUS_PAY_H__ */
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