Re-implement audio capturing based on the AudioService API (fixes issue #2755)

libcef_dll/ctocpp/audio_handler_ctocpp.h

@@ -0,0 +1,51 @@
+// Copyright (c) 2020 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+// $hash=e5517ccac966337ef7dc576a24eedfe1154b2813$
+//
+
+#ifndef CEF_LIBCEF_DLL_CTOCPP_AUDIO_HANDLER_CTOCPP_H_
+#define CEF_LIBCEF_DLL_CTOCPP_AUDIO_HANDLER_CTOCPP_H_
+#pragma once
+
+#if !defined(BUILDING_CEF_SHARED)
+#error This file can be included DLL-side only
+#endif
+
+#include "include/capi/cef_audio_handler_capi.h"
+#include "include/cef_audio_handler.h"
+#include "libcef_dll/ctocpp/ctocpp_ref_counted.h"
+
+// Wrap a C structure with a C++ class.
+// This class may be instantiated and accessed DLL-side only.
+class CefAudioHandlerCToCpp : public CefCToCppRefCounted<CefAudioHandlerCToCpp,
+                                                         CefAudioHandler,
+                                                         cef_audio_handler_t> {
+ public:
+  CefAudioHandlerCToCpp();
+  virtual ~CefAudioHandlerCToCpp();
+
+  // CefAudioHandler methods.
+  bool GetAudioParameters(CefRefPtr<CefBrowser> browser,
+                          CefAudioParameters& params) override;
+  void OnAudioStreamStarted(CefRefPtr<CefBrowser> browser,
+                            const CefAudioParameters& params,
+                            int channels) override;
+  void OnAudioStreamPacket(CefRefPtr<CefBrowser> browser,
+                           const float** data,
+                           int frames,
+                           int64 pts) override;
+  void OnAudioStreamStopped(CefRefPtr<CefBrowser> browser) override;
+  void OnAudioStreamError(CefRefPtr<CefBrowser> browser,
+                          const CefString& message) override;
+};
+
+#endif  // CEF_LIBCEF_DLL_CTOCPP_AUDIO_HANDLER_CTOCPP_H_