summaryrefslogtreecommitdiff
path: root/indra/media_plugins/cef/linux/volume_catcher_linux.h
diff options
context:
space:
mode:
authorErik Kundiman <erik@megapahit.org>2024-07-20 21:54:19 +0800
committerErik Kundiman <erik@megapahit.org>2024-07-20 21:54:19 +0800
commit4cf12a6d223a238ff30f8b334ca91836c7369f88 (patch)
treea2bf8fa27e5fff8a1b8a75cdb5d835f4e959f145 /indra/media_plugins/cef/linux/volume_catcher_linux.h
parent13f24f2419edeefbda8bedab01fad21cb97b7445 (diff)
parent569d97707459d5f87cb04a0811c0b7eb1b5c2251 (diff)
Merge branch 'main' into webrtc-voice
Diffstat (limited to 'indra/media_plugins/cef/linux/volume_catcher_linux.h')
-rw-r--r--indra/media_plugins/cef/linux/volume_catcher_linux.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/indra/media_plugins/cef/linux/volume_catcher_linux.h b/indra/media_plugins/cef/linux/volume_catcher_linux.h
new file mode 100644
index 0000000000..505f9ffb31
--- /dev/null
+++ b/indra/media_plugins/cef/linux/volume_catcher_linux.h
@@ -0,0 +1,149 @@
+/**
+ * @file volume_catcher_impl.h
+ * @brief
+ *
+ * @cond
+ * $LicenseInfo:firstyear=2010&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ * @endcond
+ */
+
+#ifndef VOLUME_CATCHER_LINUX_H
+#define VOLUME_CATCHER_LINUX_H
+
+#include "linden_common.h"
+
+#include "../volume_catcher.h"
+
+#include <unordered_set>
+#include <mutex>
+
+extern "C" {
+// There's no special reason why we want the *glib* PA mainloop, but the generic polling implementation seems broken.
+#include <pulse/glib-mainloop.h>
+#include <pulse/context.h>
+
+#include <pipewire/pipewire.h>
+
+#include "apr_pools.h"
+#include "apr_dso.h"
+}
+
+#include "media_plugin_base.h"
+
+class VolumeCatcherImpl
+{
+public:
+ virtual ~VolumeCatcherImpl() = default;
+
+ virtual void setVolume(F32 volume) = 0; // 0.0 - 1.0
+
+ // Set the left-right pan of audio sources
+ // where -1.0 = left, 0 = center, and 1.0 = right
+ virtual void setPan(F32 pan) = 0;
+
+ virtual void pump() = 0; // call this at least a few times a second if you can - it affects how quickly we can 'catch' a new audio source and adjust its volume
+};
+
+class VolumeCatcherPulseAudio : public VolumeCatcherImpl
+{
+public:
+ VolumeCatcherPulseAudio();
+ ~VolumeCatcherPulseAudio();
+
+ void setVolume(F32 volume);
+ void setPan(F32 pan);
+ void pump();
+
+ // for internal use - can't be private because used from our C callbacks
+
+ bool loadsyms(std::string pa_dso_name);
+ void init();
+ void cleanup();
+
+ void update_all_volumes(F32 volume);
+ void update_index_volume(U32 index, F32 volume);
+ void connected_okay();
+
+ std::set<U32> mSinkInputIndices;
+ std::map<U32,U32> mSinkInputNumChannels;
+ F32 mDesiredVolume;
+ pa_glib_mainloop *mMainloop;
+ pa_context *mPAContext;
+ bool mConnected;
+ bool mGotSyms;
+};
+
+class VolumeCatcherPipeWire : public VolumeCatcherImpl
+{
+public:
+ VolumeCatcherPipeWire();
+ ~VolumeCatcherPipeWire();
+
+ bool loadsyms(std::string pw_dso_name);
+ void init();
+ void cleanup();
+
+ // some of these should be private
+
+ void lock();
+ void unlock();
+
+ void setVolume(F32 volume);
+ void setPan(F32 pan);
+ void pump();
+
+ void handleRegistryEventGlobal(
+ uint32_t id, uint32_t permissions, const char* type,
+ uint32_t version, const struct spa_dict* props
+ );
+
+ class ChildNode
+ {
+ public:
+ bool mActive = false;
+
+ pw_proxy* mProxy = nullptr;
+ spa_hook mNodeListener {};
+ spa_hook mProxyListener {};
+ VolumeCatcherPipeWire* mImpl = nullptr;
+
+ void updateVolume();
+ void destroy();
+ };
+
+ bool mGotSyms = false;
+
+ F32 mVolume = 1.0f; // max by default
+ // F32 mPan = 0.0f; // center
+
+ pw_thread_loop* mThreadLoop = nullptr;
+ pw_context* mContext = nullptr;
+ pw_core* mCore = nullptr;
+ pw_registry* mRegistry = nullptr;
+ spa_hook mRegistryListener;
+
+ std::unordered_set<ChildNode*> mChildNodes;
+ std::mutex mChildNodesMutex;
+ std::mutex mCleanupMutex;
+};
+
+#endif // VOLUME_CATCHER_LINUX_H