/* * Copyright (C) 2020 Igalia S.L * * 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 * aint with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ #pragma once #if USE(GSTREAMER) #include "GRefPtrGStreamer.h" #include <wtf/Forward.h> namespace WebCore { class GStreamerAudioMixer { friend NeverDestroyed<GStreamerAudioMixer>; public: static bool isAvailable(); static GStreamerAudioMixer& singleton(); void ensureState(GstStateChange); GRefPtr<GstPad> registerProducer(GstElement*); void unregisterProducer(const GRefPtr<GstPad>&); private: GStreamerAudioMixer(); GRefPtr<GstElement> m_pipeline; GRefPtr<GstElement> m_mixer; }; } // namespace WebCore #endif // USE(GSTREAMER)