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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b1089fb520
The payloader didn't copy anything so far, the depayloader copied every possible meta. Let's make it consistent and just copy all metas without tags or with only the video tag. https://bugzilla.gnome.org/show_bug.cgi?id=751774
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*
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* Siren Depayloader Gst Element
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*
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* @author: Youness Alaoui <kakaroto@kakaroto.homelinux.net>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 <gst/audio/audio.h>
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#include "gstrtpsirendepay.h"
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#include "gstrtputils.h"
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static GstStaticPadTemplate gst_rtp_siren_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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"clock-rate = (int) 16000, " "encoding-name = (string) \"SIREN\"")
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/* This is the default, so the peer doesn't have to specify it */
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/* " "dct-length = (int) 320") */
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);
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static GstStaticPadTemplate gst_rtp_siren_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-siren, " "dct-length = (int) 320")
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);
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static GstBuffer *gst_rtp_siren_depay_process (GstRTPBaseDepayload *
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depayload, GstRTPBuffer * rtp);
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static gboolean gst_rtp_siren_depay_setcaps (GstRTPBaseDepayload *
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depayload, GstCaps * caps);
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G_DEFINE_TYPE (GstRTPSirenDepay, gst_rtp_siren_depay,
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GST_TYPE_RTP_BASE_DEPAYLOAD);
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static void gst_rtp_siren_depay_class_init (GstRTPSirenDepayClass * klass)
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{
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GstElementClass *gstelement_class;
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GstRTPBaseDepayloadClass *gstrtpbasedepayload_class;
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gstelement_class = (GstElementClass *) klass;
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gstrtpbasedepayload_class = (GstRTPBaseDepayloadClass *) klass;
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gstrtpbasedepayload_class->process_rtp_packet = gst_rtp_siren_depay_process;
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gstrtpbasedepayload_class->set_caps = gst_rtp_siren_depay_setcaps;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&gst_rtp_siren_depay_src_template));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&gst_rtp_siren_depay_sink_template));
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gst_element_class_set_static_metadata (gstelement_class,
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"RTP Siren packet depayloader", "Codec/Depayloader/Network/RTP",
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"Extracts Siren audio from RTP packets",
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"Philippe Kalaf <philippe.kalaf@collabora.co.uk>");
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}
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static void
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gst_rtp_siren_depay_init (GstRTPSirenDepay * rtpsirendepay)
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{
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}
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static gboolean
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gst_rtp_siren_depay_setcaps (GstRTPBaseDepayload * 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-siren",
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"dct-length", G_TYPE_INT, 320, NULL);
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ret = gst_pad_set_caps (GST_RTP_BASE_DEPAYLOAD_SRCPAD (depayload), srccaps);
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GST_DEBUG ("set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret);
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gst_caps_unref (srccaps);
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/* always fixed clock rate of 16000 */
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depayload->clock_rate = 16000;
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return ret;
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}
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static GstBuffer *
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gst_rtp_siren_depay_process (GstRTPBaseDepayload * depayload,
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GstRTPBuffer * rtp)
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{
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GstBuffer *outbuf;
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outbuf = gst_rtp_buffer_get_payload_buffer (rtp);
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if (outbuf) {
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gst_rtp_drop_meta (GST_ELEMENT_CAST (depayload), outbuf,
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g_quark_from_static_string (GST_META_TAG_AUDIO_STR));
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}
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return outbuf;
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}
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gboolean
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gst_rtp_siren_depay_plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "rtpsirendepay",
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GST_RANK_SECONDARY, GST_TYPE_RTP_SIREN_DEPAY);
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}
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