mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 02:01:12 +00:00
Revert "New element 'proxy' to send data to in-process pipelines"
This reverts commit 8a056af05e.
Accidentally pushed this element, oops! Progress on this element is
being tracked at: https://bugzilla.gnome.org/show_bug.cgi?id=788200
This commit is contained in:
Nirbheek Chauhan
parent
a07248aec4
commit
11af685d64
11 changed files with 0 additions and 901 deletions
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@ -484,7 +484,6 @@ AG_GST_CHECK_PLUGIN(netsim)
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AG_GST_CHECK_PLUGIN(onvif)
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AG_GST_CHECK_PLUGIN(pcapparse)
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AG_GST_CHECK_PLUGIN(pnm)
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AG_GST_CHECK_PLUGIN(proxy)
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AG_GST_CHECK_PLUGIN(rawparse)
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AG_GST_CHECK_PLUGIN(removesilence)
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AG_GST_CHECK_PLUGIN(sdp)
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@ -3660,7 +3659,6 @@ gst/netsim/Makefile
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gst/onvif/Makefile
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gst/pcapparse/Makefile
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gst/pnm/Makefile
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gst/proxy/Makefile
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gst/rawparse/Makefile
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gst/removesilence/Makefile
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gst/sdp/Makefile
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@ -42,7 +42,6 @@ subdir('netsim')
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subdir('onvif')
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subdir('pcapparse')
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subdir('pnm')
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subdir('proxy')
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subdir('rawparse')
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subdir('removesilence')
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subdir('sdp')
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@ -1,9 +0,0 @@
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plugin_LTLIBRARIES = libgstproxy.la
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libgstproxy_la_SOURCES = gstproxy.c gstproxysink.c gstproxysrc.c
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libgstproxy_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
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libgstproxy_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) $(GST_BASE_LIBS) $(GST_LIBS)
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libgstproxy_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = gstproxysink.h gstproxysink-priv.h gstproxysrc.h gstproxysrc-priv.h
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@ -1,43 +0,0 @@
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/*
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* Copyright (C) 2015 Centricular Ltd.
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* Author: Sebastian Dröge <sebastian@centricular.com>
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* Author: Nirbheek Chauhan <nirbheek@centricular.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., 51 Franklin Street, Suite 500,
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* Boston, MA 02110-1335, 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 "gstproxysrc.h"
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#include "gstproxysink.h"
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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gst_element_register (plugin, "proxysrc", GST_RANK_NONE, GST_TYPE_PROXY_SRC);
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gst_element_register (plugin, "proxysink", GST_RANK_NONE,
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GST_TYPE_PROXY_SINK);
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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proxy,
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"plugin for proxied inter-pipeline communication",
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plugin_init, VERSION, "LGPL", "gstproxy", "http://centricular.com")
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@ -1,41 +0,0 @@
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/*
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* Copyright (C) 2015 Centricular Ltd.
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* Author: Sebastian Dröge <sebastian@centricular.com>
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* Author: Nirbheek Chauhan <nirbheek@centricular.com>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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#ifndef __GST_PROXY_SINK_PRIV_H__
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#define __GST_PROXY_SINK_PRIV_H__
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#include "gstproxysrc.h"
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G_BEGIN_DECLS
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void gst_proxy_sink_set_proxysrc (GstProxySink *sink, GstProxySrc *src);
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GstPad* gst_proxy_sink_get_internal_sinkpad (GstProxySink *sink);
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G_END_DECLS
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#endif /* __GST_PROXY_SINK_PRIV_H__ */
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@ -1,305 +0,0 @@
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/*
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* Copyright (C) 2015 Centricular Ltd.
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* Author: Sebastian Dröge <sebastian@centricular.com>
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* Author: Nirbheek Chauhan <nirbheek@centricular.com>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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/**
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* SECTION:element-proxysink
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*
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* Proxysink is a sink element that proxies events, queries, and buffers to
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* another pipeline that contains a matching proxysrc element. The purpose is
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* to allow two decoupled pipelines to function as though they are one without
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* having to manually shuttle buffers, events, queries, etc between the two.
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*
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* This element also copies sticky events onto the matching proxysrc element.
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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 "gstproxysink.h"
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#include "gstproxysink-priv.h"
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#include "gstproxysrc.h"
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#include "gstproxysrc-priv.h"
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#define GST_CAT_DEFAULT gst_proxy_sink_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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static GstStaticPadTemplate sink_template = 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_ANY);
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struct _GstProxySinkPrivate
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{
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GstPad *sinkpad;
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/* The proxysrc that we push events, buffers, queries to */
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GWeakRef proxysrc;
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/* Whether there are sticky events pending */
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gboolean pending_sticky_events;
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};
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/* We're not subclassing from basesink because we don't want any of the special
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* handling it has for events/queries/etc. We just pass-through everything. */
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/* Unlink proxysrc, we don't contain any elements so our parent is GstElement */
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#define parent_class gst_proxy_sink_parent_class
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G_DEFINE_TYPE (GstProxySink, gst_proxy_sink, GST_TYPE_ELEMENT);
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static gboolean gst_proxy_sink_sink_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static GstFlowReturn gst_proxy_sink_sink_chain (GstPad * pad,
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GstObject * parent, GstBuffer * buffer);
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static GstFlowReturn gst_proxy_sink_sink_chain_list (GstPad * pad,
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GstObject * parent, GstBufferList * list);
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static gboolean gst_proxy_sink_sink_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static GstStateChangeReturn gst_proxy_sink_change_state (GstElement * element,
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GstStateChange transition);
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static void
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gst_proxy_sink_class_init (GstProxySinkClass * klass)
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{
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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GST_DEBUG_CATEGORY_INIT (gst_proxy_sink_debug, "proxysink", 0, "proxy sink");
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g_type_class_add_private (klass, sizeof (GstProxySinkPrivate));
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gstelement_class->change_state = gst_proxy_sink_change_state;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_static_metadata (gstelement_class, "Proxy Sink",
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"Sink", "Proxy source for internal process communication",
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"Sebastian Dröge <sebastian@centricular.com>");
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}
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static void
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gst_proxy_sink_init (GstProxySink * self)
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{
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_PROXY_SINK,
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GstProxySinkPrivate);
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self->priv->sinkpad =
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gst_pad_new_from_static_template (&sink_template, "sink");
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gst_pad_set_chain_function (self->priv->sinkpad,
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GST_DEBUG_FUNCPTR (gst_proxy_sink_sink_chain));
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gst_pad_set_chain_list_function (self->priv->sinkpad,
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GST_DEBUG_FUNCPTR (gst_proxy_sink_sink_chain_list));
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gst_pad_set_event_function (self->priv->sinkpad,
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GST_DEBUG_FUNCPTR (gst_proxy_sink_sink_event));
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gst_pad_set_query_function (self->priv->sinkpad,
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GST_DEBUG_FUNCPTR (gst_proxy_sink_sink_query));
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gst_element_add_pad (GST_ELEMENT (self), self->priv->sinkpad);
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}
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static GstStateChangeReturn
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gst_proxy_sink_change_state (GstElement * element, GstStateChange transition)
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{
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GstElementClass *gstelement_class =
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GST_ELEMENT_CLASS (gst_proxy_sink_parent_class);
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GstProxySink *self = GST_PROXY_SINK (element);
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GstStateChangeReturn ret;
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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self->priv->pending_sticky_events = FALSE;
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break;
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default:
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break;
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}
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ret = gstelement_class->change_state (element, transition);
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return ret;
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}
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static gboolean
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gst_proxy_sink_sink_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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GstProxySink *self = GST_PROXY_SINK (parent);
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GstProxySrc *src;
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gboolean ret = FALSE;
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GST_LOG_OBJECT (pad, "Handling query of type '%s'",
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gst_query_type_get_name (GST_QUERY_TYPE (query)));
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src = g_weak_ref_get (&self->priv->proxysrc);
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if (src) {
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GstPad *srcpad;
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srcpad = gst_proxy_src_get_internal_srcpad (src);
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ret = gst_pad_peer_query (srcpad, query);
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gst_object_unref (srcpad);
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gst_object_unref (src);
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}
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return ret;
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}
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typedef struct
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{
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GstPad *otherpad;
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GstFlowReturn ret;
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} CopyStickyEventsData;
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static gboolean
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copy_sticky_events (G_GNUC_UNUSED GstPad * pad, GstEvent ** event,
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gpointer user_data)
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{
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CopyStickyEventsData *data = user_data;
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data->ret = gst_pad_store_sticky_event (data->otherpad, *event);
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return data->ret == GST_FLOW_OK;
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}
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static gboolean
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gst_proxy_sink_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstProxySink *self = GST_PROXY_SINK (parent);
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GstProxySrc *src;
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gboolean ret = FALSE;
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gboolean sticky = GST_EVENT_IS_STICKY (event);
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GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
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if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP)
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self->priv->pending_sticky_events = FALSE;
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src = g_weak_ref_get (&self->priv->proxysrc);
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if (src) {
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GstPad *srcpad;
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srcpad = gst_proxy_src_get_internal_srcpad (src);
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if (sticky && self->priv->pending_sticky_events) {
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CopyStickyEventsData data = { srcpad, GST_FLOW_OK };
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gst_pad_sticky_events_foreach (pad, copy_sticky_events, &data);
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self->priv->pending_sticky_events = data.ret != GST_FLOW_OK;
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}
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ret = gst_pad_push_event (srcpad, event);
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gst_object_unref (srcpad);
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gst_object_unref (src);
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if (!ret && sticky) {
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self->priv->pending_sticky_events = TRUE;
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ret = TRUE;
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}
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} else
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gst_event_unref (event);
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return ret;
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}
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static GstFlowReturn
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gst_proxy_sink_sink_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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{
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GstProxySink *self = GST_PROXY_SINK (parent);
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GstProxySrc *src;
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GstFlowReturn ret = GST_FLOW_OK;
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GST_LOG_OBJECT (pad, "Chaining buffer %p", buffer);
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src = g_weak_ref_get (&self->priv->proxysrc);
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if (src) {
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GstPad *srcpad;
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srcpad = gst_proxy_src_get_internal_srcpad (src);
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if (self->priv->pending_sticky_events) {
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CopyStickyEventsData data = { srcpad, GST_FLOW_OK };
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gst_pad_sticky_events_foreach (pad, copy_sticky_events, &data);
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self->priv->pending_sticky_events = data.ret != GST_FLOW_OK;
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}
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ret = gst_pad_push (srcpad, buffer);
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gst_object_unref (srcpad);
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gst_object_unref (src);
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GST_LOG_OBJECT (pad, "Chained buffer %p: %s", buffer,
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gst_flow_get_name (ret));
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} else {
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gst_buffer_unref (buffer);
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GST_LOG_OBJECT (pad, "Dropped buffer %p: no otherpad", buffer);
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}
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_proxy_sink_sink_chain_list (GstPad * pad, GstObject * parent,
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GstBufferList * list)
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{
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GstProxySink *self = GST_PROXY_SINK (parent);
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GstProxySrc *src;
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GstFlowReturn ret = GST_FLOW_OK;
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GST_LOG_OBJECT (pad, "Chaining buffer list %p", list);
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src = g_weak_ref_get (&self->priv->proxysrc);
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if (src) {
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GstPad *srcpad;
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srcpad = gst_proxy_src_get_internal_srcpad (src);
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if (self->priv->pending_sticky_events) {
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CopyStickyEventsData data = { srcpad, GST_FLOW_OK };
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gst_pad_sticky_events_foreach (pad, copy_sticky_events, &data);
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self->priv->pending_sticky_events = data.ret != GST_FLOW_OK;
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}
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ret = gst_pad_push_list (srcpad, list);
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gst_object_unref (srcpad);
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gst_object_unref (src);
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GST_LOG_OBJECT (pad, "Chained buffer list %p: %s", list,
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gst_flow_get_name (ret));
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} else {
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gst_buffer_list_unref (list);
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GST_LOG_OBJECT (pad, "Dropped buffer list %p: no otherpad", list);
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}
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return GST_FLOW_OK;
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}
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/* Wrapper function for accessing private member
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* This can also be retrieved with gst_element_get_static_pad, but that depends
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* on the implementation of GstProxySink */
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GstPad *
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gst_proxy_sink_get_internal_sinkpad (GstProxySink * self)
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{
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g_return_val_if_fail (self, NULL);
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return gst_object_ref (self->priv->sinkpad);
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}
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void
|
||||
gst_proxy_sink_set_proxysrc (GstProxySink * self, GstProxySrc * src)
|
||||
{
|
||||
g_return_if_fail (self);
|
||||
g_weak_ref_set (&self->priv->proxysrc, src);
|
||||
}
|
||||
|
|
@ -1,62 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2015 Centricular Ltd.
|
||||
* Author: Sebastian Dröge <sebastian@centricular.com>
|
||||
* Author: Nirbheek Chauhan <nirbheek@centricular.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice, this
|
||||
* list of conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef __GST_PROXY_SINK_H__
|
||||
#define __GST_PROXY_SINK_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_PROXY_SINK (gst_proxy_sink_get_type())
|
||||
#define GST_PROXY_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_PROXY_SINK, GstProxySink))
|
||||
#define GST_IS_PROXY_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_PROXY_SINK))
|
||||
#define GST_PROXY_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_PROXY_SINK, GstProxySinkClass))
|
||||
#define GST_IS_PROXY_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_PROXY_SINK))
|
||||
#define GST_PROXY_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_PROXY_SINK, GstProxySinkClass))
|
||||
|
||||
typedef struct _GstProxySink GstProxySink;
|
||||
typedef struct _GstProxySinkClass GstProxySinkClass;
|
||||
typedef struct _GstProxySinkPrivate GstProxySinkPrivate;
|
||||
|
||||
struct _GstProxySink {
|
||||
GstElement parent;
|
||||
|
||||
/* < private > */
|
||||
GstProxySinkPrivate *priv;
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
};
|
||||
|
||||
struct _GstProxySinkClass {
|
||||
GstElementClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_proxy_sink_get_type (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_PROXY_SINK_H__ */
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2015 Centricular Ltd.
|
||||
* Author: Sebastian Dröge <sebastian@centricular.com>
|
||||
* Author: Nirbheek Chauhan <nirbheek@centricular.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice, this
|
||||
* list of conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef __GST_PROXY_SRC_PRIV_H__
|
||||
#define __GST_PROXY_SRC_PRIV_H__
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
GstPad* gst_proxy_src_get_internal_srcpad (GstProxySrc *src);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_PROXY_SRC_PRIV_H__ */
|
||||
|
|
@ -1,325 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2015 Centricular Ltd.
|
||||
* Author: Sebastian Dröge <sebastian@centricular.com>
|
||||
* Author: Nirbheek Chauhan <nirbheek@centricular.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice, this
|
||||
* list of conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* SECTION:element-proxysrc
|
||||
*
|
||||
* Proxysrc is a source element that proxies events, queries, and buffers from
|
||||
* another pipeline that contains a matching proxysink element. The purpose is
|
||||
* to allow two decoupled pipelines to function as though they are one without
|
||||
* having to manually shuttle buffers, events, queries, etc between the two.
|
||||
*
|
||||
* The element queues buffers from the matching proxysink to an internal queue,
|
||||
* so everything downstream is properly decoupled from the upstream pipeline.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
#include "gstproxysrc.h"
|
||||
#include "gstproxysrc-priv.h"
|
||||
#include "gstproxysink.h"
|
||||
#include "gstproxysink-priv.h"
|
||||
|
||||
#define GST_CAT_DEFAULT gst_proxy_src_debug
|
||||
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
|
||||
|
||||
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
|
||||
GST_PAD_SRC,
|
||||
GST_PAD_ALWAYS,
|
||||
GST_STATIC_CAPS_ANY);
|
||||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_PROXYSINK,
|
||||
};
|
||||
|
||||
struct _GstProxySrcPrivate
|
||||
{
|
||||
/* Queue to hold buffers from proxysink */
|
||||
GstElement *queue;
|
||||
/* Source pad of the above queue and the proxysrc element itself */
|
||||
GstPad *srcpad;
|
||||
/* Our internal srcpad that proxysink pushes buffers/events/queries into */
|
||||
GstPad *internal_srcpad;
|
||||
/* An unlinked dummy sinkpad; see gst_proxy_src_init() */
|
||||
GstPad *dummy_sinkpad;
|
||||
/* The matching proxysink; queries and events are sent to its sinkpad */
|
||||
GWeakRef proxysink;
|
||||
};
|
||||
|
||||
/* We're not subclassing from basesrc because we don't want any of the special
|
||||
* handling it has for events/queries/etc. We just pass-through everything. */
|
||||
|
||||
/* Our parent type is a GstBin instead of GstElement because we contain a queue
|
||||
* element */
|
||||
#define parent_class gst_proxy_src_parent_class
|
||||
G_DEFINE_TYPE (GstProxySrc, gst_proxy_src, GST_TYPE_BIN);
|
||||
|
||||
static gboolean gst_proxy_src_internal_src_query (GstPad * pad,
|
||||
GstObject * parent, GstQuery * query);
|
||||
static gboolean gst_proxy_src_internal_src_event (GstPad * pad,
|
||||
GstObject * parent, GstEvent * event);
|
||||
|
||||
static GstStateChangeReturn gst_proxy_src_change_state (GstElement * element,
|
||||
GstStateChange transition);
|
||||
static void gst_proxy_src_dispose (GObject * object);
|
||||
|
||||
static void
|
||||
gst_proxy_src_get_property (GObject * object,
|
||||
guint prop_id, GValue * value, GParamSpec * spec)
|
||||
{
|
||||
GstProxySrc *self = GST_PROXY_SRC (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PROXYSINK:
|
||||
g_value_take_object (value, g_weak_ref_get (&self->priv->proxysink));
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_proxy_src_set_property (GObject * object,
|
||||
guint prop_id, const GValue * value, GParamSpec * spec)
|
||||
{
|
||||
GstProxySrc *self = GST_PROXY_SRC (object);
|
||||
GstProxySink *sink;
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PROXYSINK:
|
||||
sink = g_value_dup_object (value);
|
||||
if (sink == NULL) {
|
||||
/* Unset proxysrc property on the existing proxysink to break the
|
||||
* connection in that direction */
|
||||
GstProxySink *old_sink = g_weak_ref_get (&self->priv->proxysink);
|
||||
if (old_sink) {
|
||||
gst_proxy_sink_set_proxysrc (old_sink, NULL);
|
||||
g_object_unref (old_sink);
|
||||
}
|
||||
g_weak_ref_set (&self->priv->proxysink, NULL);
|
||||
} else {
|
||||
/* Set proxysrc property on the new proxysink to point to us */
|
||||
gst_proxy_sink_set_proxysrc (sink, self);
|
||||
g_weak_ref_set (&self->priv->proxysink, sink);
|
||||
g_object_unref (sink);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, spec);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_proxy_src_class_init (GstProxySrcClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class = (GObjectClass *) klass;
|
||||
GstElementClass *gstelement_class = (GstElementClass *) klass;
|
||||
|
||||
GST_DEBUG_CATEGORY_INIT (gst_proxy_src_debug, "proxysrc", 0, "proxy sink");
|
||||
|
||||
g_type_class_add_private (klass, sizeof (GstProxySrcPrivate));
|
||||
|
||||
gobject_class->dispose = gst_proxy_src_dispose;
|
||||
|
||||
gobject_class->get_property = gst_proxy_src_get_property;
|
||||
gobject_class->set_property = gst_proxy_src_set_property;
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_PROXYSINK,
|
||||
g_param_spec_object ("proxysink", "Proxysink", "Matching proxysink",
|
||||
GST_TYPE_PROXY_SINK, G_PARAM_READWRITE));
|
||||
|
||||
gstelement_class->change_state = gst_proxy_src_change_state;
|
||||
gst_element_class_add_pad_template (gstelement_class,
|
||||
gst_static_pad_template_get (&src_template));
|
||||
|
||||
gst_element_class_set_static_metadata (gstelement_class, "Proxy source",
|
||||
"Source", "Proxy source for internal process communication",
|
||||
"Sebastian Dröge <sebastian@centricular.com>");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_proxy_src_init (GstProxySrc * self)
|
||||
{
|
||||
GstPad *srcpad, *sinkpad;
|
||||
GstPadTemplate *templ;
|
||||
|
||||
GST_OBJECT_FLAG_SET (self, GST_ELEMENT_FLAG_SOURCE);
|
||||
|
||||
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_PROXY_SRC,
|
||||
GstProxySrcPrivate);
|
||||
|
||||
/* We feed incoming buffers into a queue to decouple the downstream pipeline
|
||||
* from the upstream pipeline */
|
||||
self->priv->queue = gst_element_factory_make ("queue", NULL);
|
||||
gst_bin_add (GST_BIN (self), self->priv->queue);
|
||||
|
||||
srcpad = gst_element_get_static_pad (self->priv->queue, "src");
|
||||
templ = gst_static_pad_template_get (&src_template);
|
||||
self->priv->srcpad = gst_ghost_pad_new_from_template ("src", srcpad, templ);
|
||||
gst_object_unref (templ);
|
||||
gst_object_unref (srcpad);
|
||||
|
||||
gst_element_add_pad (GST_ELEMENT (self), self->priv->srcpad);
|
||||
|
||||
/* A dummy sinkpad that's not actually used anywhere
|
||||
* Explanation for why this is needed is below */
|
||||
self->priv->dummy_sinkpad = gst_pad_new ("dummy_sinkpad", GST_PAD_SINK);
|
||||
gst_object_set_parent (GST_OBJECT (self->priv->dummy_sinkpad),
|
||||
GST_OBJECT (self));
|
||||
|
||||
self->priv->internal_srcpad = gst_pad_new ("internal_src", GST_PAD_SRC);
|
||||
gst_object_set_parent (GST_OBJECT (self->priv->internal_srcpad),
|
||||
GST_OBJECT (self->priv->dummy_sinkpad));
|
||||
gst_pad_set_event_function (self->priv->internal_srcpad,
|
||||
gst_proxy_src_internal_src_event);
|
||||
gst_pad_set_query_function (self->priv->internal_srcpad,
|
||||
gst_proxy_src_internal_src_query);
|
||||
|
||||
/* We need to link internal_srcpad from proxysink to the sinkpad of our
|
||||
* queue. However, two pads can only be linked if they share a common parent.
|
||||
* Above, we set the parent of the dummy_sinkpad as proxysrc, and then we set
|
||||
* the parent of internal_srcpad as dummy_sinkpad. This causes both these pads
|
||||
* to share a parent allowing us to link them.
|
||||
* Yes, this is a hack/workaround. */
|
||||
sinkpad = gst_element_get_static_pad (self->priv->queue, "sink");
|
||||
gst_pad_link (self->priv->internal_srcpad, sinkpad);
|
||||
gst_object_unref (sinkpad);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_proxy_src_dispose (GObject * object)
|
||||
{
|
||||
GstProxySrc *self = GST_PROXY_SRC (object);
|
||||
|
||||
gst_object_unparent (GST_OBJECT (self->priv->dummy_sinkpad));
|
||||
self->priv->dummy_sinkpad = NULL;
|
||||
|
||||
gst_object_unparent (GST_OBJECT (self->priv->internal_srcpad));
|
||||
self->priv->internal_srcpad = NULL;
|
||||
|
||||
g_weak_ref_set (&self->priv->proxysink, NULL);
|
||||
|
||||
G_OBJECT_CLASS (gst_proxy_src_parent_class)->dispose (object);
|
||||
}
|
||||
|
||||
static GstStateChangeReturn
|
||||
gst_proxy_src_change_state (GstElement * element, GstStateChange transition)
|
||||
{
|
||||
GstElementClass *gstelement_class =
|
||||
GST_ELEMENT_CLASS (gst_proxy_src_parent_class);
|
||||
GstProxySrc *self = GST_PROXY_SRC (element);
|
||||
GstStateChangeReturn ret;
|
||||
|
||||
ret = gstelement_class->change_state (element, transition);
|
||||
if (ret == GST_STATE_CHANGE_FAILURE)
|
||||
return ret;
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
||||
ret = GST_STATE_CHANGE_NO_PREROLL;
|
||||
gst_pad_set_active (self->priv->internal_srcpad, TRUE);
|
||||
break;
|
||||
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
||||
gst_pad_set_active (self->priv->internal_srcpad, FALSE);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_proxy_src_internal_src_query (GstPad * pad, GstObject * parent,
|
||||
GstQuery * query)
|
||||
{
|
||||
GstProxySrc *self = GST_PROXY_SRC (gst_object_get_parent (parent));
|
||||
GstProxySink *sink;
|
||||
gboolean ret = FALSE;
|
||||
|
||||
if (!self)
|
||||
return ret;
|
||||
|
||||
GST_LOG_OBJECT (pad, "Handling query of type '%s'",
|
||||
gst_query_type_get_name (GST_QUERY_TYPE (query)));
|
||||
|
||||
sink = g_weak_ref_get (&self->priv->proxysink);
|
||||
if (sink) {
|
||||
GstPad *sinkpad;
|
||||
sinkpad = gst_proxy_sink_get_internal_sinkpad (sink);
|
||||
|
||||
ret = gst_pad_peer_query (sinkpad, query);
|
||||
gst_object_unref (sinkpad);
|
||||
gst_object_unref (sink);
|
||||
}
|
||||
|
||||
gst_object_unref (self);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_proxy_src_internal_src_event (GstPad * pad, GstObject * parent,
|
||||
GstEvent * event)
|
||||
{
|
||||
GstProxySrc *self = GST_PROXY_SRC (gst_object_get_parent (parent));
|
||||
GstProxySink *sink;
|
||||
gboolean ret = FALSE;
|
||||
|
||||
if (!self)
|
||||
return ret;
|
||||
|
||||
GST_LOG_OBJECT (pad, "Got %s event", GST_EVENT_TYPE_NAME (event));
|
||||
|
||||
sink = g_weak_ref_get (&self->priv->proxysink);
|
||||
if (sink) {
|
||||
GstPad *sinkpad;
|
||||
sinkpad = gst_proxy_sink_get_internal_sinkpad (sink);
|
||||
|
||||
ret = gst_pad_push_event (sinkpad, event);
|
||||
gst_object_unref (sinkpad);
|
||||
gst_object_unref (sink);
|
||||
} else
|
||||
gst_event_unref (event);
|
||||
|
||||
|
||||
gst_object_unref (self);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Wrapper function for accessing private member */
|
||||
GstPad *
|
||||
gst_proxy_src_get_internal_srcpad (GstProxySrc * self)
|
||||
{
|
||||
return gst_object_ref (self->priv->internal_srcpad);
|
||||
}
|
||||
|
|
@ -1,62 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2015 Centricular Ltd.
|
||||
* Author: Sebastian Dröge <sebastian@centricular.com>
|
||||
* Author: Nirbheek Chauhan <nirbheek@centricular.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without modification,
|
||||
* are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright notice, this
|
||||
* list of conditions and the following disclaimer in the documentation and/or other
|
||||
* materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef __GST_PROXY_SRC_H__
|
||||
#define __GST_PROXY_SRC_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_PROXY_SRC (gst_proxy_src_get_type())
|
||||
#define GST_PROXY_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_PROXY_SRC, GstProxySrc))
|
||||
#define GST_IS_PROXY_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_PROXY_SRC))
|
||||
#define GST_PROXY_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) , GST_TYPE_PROXY_SRC, GstProxySrcClass))
|
||||
#define GST_IS_PROXY_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) , GST_TYPE_PROXY_SRC))
|
||||
#define GST_PROXY_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) , GST_TYPE_PROXY_SRC, GstProxySrcClass))
|
||||
|
||||
typedef struct _GstProxySrc GstProxySrc;
|
||||
typedef struct _GstProxySrcClass GstProxySrcClass;
|
||||
typedef struct _GstProxySrcPrivate GstProxySrcPrivate;
|
||||
|
||||
struct _GstProxySrc {
|
||||
GstBin parent;
|
||||
|
||||
/* < private > */
|
||||
GstProxySrcPrivate *priv;
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
};
|
||||
|
||||
struct _GstProxySrcClass {
|
||||
GstBinClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_proxy_src_get_type(void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_PROXY_SRC_H__ */
|
||||
|
|
@ -1,14 +0,0 @@
|
|||
proxy_sources = [
|
||||
'gstproxy.c',
|
||||
'gstproxysink.c',
|
||||
'gstproxysrc.c'
|
||||
]
|
||||
|
||||
gstproxy = library('gstproxy',
|
||||
proxy_sources,
|
||||
c_args : gst_plugins_bad_args,
|
||||
include_directories : [configinc],
|
||||
dependencies : [gstbase_dep],
|
||||
install : true,
|
||||
install_dir : plugins_install_dir,
|
||||
)
|
||||
Loading…
Reference in a new issue