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Update to CEF 3.3683.1920.g9f41a27
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Salvador Díaz Fau
247
source/uCEFAudioHandler.pas
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247
source/uCEFAudioHandler.pas
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// ************************************************************************
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// ***************************** CEF4Delphi *******************************
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// ************************************************************************
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//
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// CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based
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// browser in Delphi applications.
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//
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// The original license of DCEF3 still applies to CEF4Delphi.
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//
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// For more information about CEF4Delphi visit :
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// https://www.briskbard.com/index.php?lang=en&pageid=cef
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//
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// Copyright � 2019 Salvador Diaz Fau. All rights reserved.
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//
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// ************************************************************************
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// ************ vvvv Original license and comments below vvvv *************
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// ************************************************************************
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(*
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* Delphi Chromium Embedded 3
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*
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* Usage allowed under the restrictions of the Lesser GNU General Public License
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* or alternatively the restrictions of the Mozilla Public License 1.1
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* Unit owner : Henri Gourvest <hgourvest@gmail.com>
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* Web site : http://www.progdigy.com
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* Repository : http://code.google.com/p/delphichromiumembedded/
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* Group : http://groups.google.com/group/delphichromiumembedded
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*
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* Embarcadero Technologies, Inc is not permitted to use or redistribute
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* this source code without explicit permission.
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*
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*)
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unit uCEFAudioHandler;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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{$I cef.inc}
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interface
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uses
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uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
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type
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TCefAudioHandlerOwn = class(TCefBaseRefCountedOwn, ICefAudioHandler)
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protected
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procedure OnAudioStreamStarted(const browser: ICefBrowser; audio_stream_id, channels: integer; channel_layout: TCefChannelLayout; sample_rate, frames_per_buffer: integer); virtual;
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procedure OnAudioStreamPacket(const browser: ICefBrowser; audio_stream_id: integer; const data : PPSingle; frames: integer; pts: int64); virtual;
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procedure OnAudioStreamStopped(const browser: ICefBrowser; audio_stream_id: integer); virtual;
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procedure RemoveReferences; virtual;
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public
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constructor Create; virtual;
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end;
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TCustomAudioHandler = class(TCefAudioHandlerOwn)
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protected
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FEvents : Pointer;
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procedure OnAudioStreamStarted(const browser: ICefBrowser; audio_stream_id, channels: integer; channel_layout: TCefChannelLayout; sample_rate, frames_per_buffer: integer); override;
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procedure OnAudioStreamPacket(const browser: ICefBrowser; audio_stream_id: integer; const data : PPSingle; frames: integer; pts: int64); override;
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procedure OnAudioStreamStopped(const browser: ICefBrowser; audio_stream_id: integer); override;
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procedure RemoveReferences; override;
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public
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constructor Create(const events: Pointer); reintroduce; virtual;
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destructor Destroy; override;
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end;
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implementation
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uses
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{$IFDEF DELPHI16_UP}
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System.SysUtils,
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{$ELSE}
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SysUtils,
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{$ENDIF}
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uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser;
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procedure cef_audio_handler_on_audio_stream_started(self : PCefAudioHandler;
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browser : PCefBrowser;
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audio_stream_id : integer;
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channels : integer;
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channel_layout : TCefChannelLayout;
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sample_rate : integer;
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frames_per_buffer : integer); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamStarted(TCefBrowserRef.UnWrap(browser),
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audio_stream_id,
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channels,
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channel_layout,
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sample_rate,
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frames_per_buffer);
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end;
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procedure cef_audio_handler_on_audio_stream_packet( self : PCefAudioHandler;
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browser : PCefBrowser;
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audio_stream_id : integer;
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const data : PPSingle;
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frames : integer;
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pts : int64); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamPacket(TCefBrowserRef.UnWrap(browser),
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audio_stream_id,
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data,
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frames,
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pts);
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end;
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procedure cef_audio_handler_on_audio_stream_stopped(self : PCefAudioHandler;
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browser : PCefBrowser;
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audio_stream_id : integer); stdcall;
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var
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TempObject : TObject;
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begin
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TempObject := CefGetObject(self);
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if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
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TCefAudioHandlerOwn(TempObject).OnAudioStreamStopped(TCefBrowserRef.UnWrap(browser),
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audio_stream_id);
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end;
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constructor TCefAudioHandlerOwn.Create;
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begin
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inherited CreateData(SizeOf(TCefAudioHandler));
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with PCefAudioHandler(FData)^ do
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begin
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on_audio_stream_started := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_started;
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on_audio_stream_packet := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_packet;
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on_audio_stream_stopped := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_stopped;
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end;
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamStarted(const browser : ICefBrowser;
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audio_stream_id : integer;
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channels : integer;
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channel_layout : TCefChannelLayout;
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sample_rate : integer;
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frames_per_buffer : integer);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamPacket(const browser : ICefBrowser;
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audio_stream_id : integer;
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const data : PPSingle;
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frames : integer;
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pts : int64);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.OnAudioStreamStopped(const browser : ICefBrowser;
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audio_stream_id : integer);
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begin
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//
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end;
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procedure TCefAudioHandlerOwn.RemoveReferences;
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begin
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//
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end;
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// TCustomAudioHandler
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constructor TCustomAudioHandler.Create(const events: Pointer);
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begin
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inherited Create;
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FEvents := events;
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end;
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destructor TCustomAudioHandler.Destroy;
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begin
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RemoveReferences;
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inherited Destroy;
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end;
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procedure TCustomAudioHandler.RemoveReferences;
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begin
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FEvents := nil;
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end;
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procedure TCustomAudioHandler.OnAudioStreamStarted(const browser : ICefBrowser;
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audio_stream_id : integer;
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channels : integer;
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channel_layout : TCefChannelLayout;
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sample_rate : integer;
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frames_per_buffer : integer);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamStarted(browser,
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audio_stream_id,
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channels,
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channel_layout,
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sample_rate,
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frames_per_buffer);
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end;
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procedure TCustomAudioHandler.OnAudioStreamPacket(const browser : ICefBrowser;
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audio_stream_id : integer;
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const data : PPSingle;
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frames : integer;
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pts : int64);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamPacket(browser,
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audio_stream_id,
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data,
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frames,
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pts);
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end;
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procedure TCustomAudioHandler.OnAudioStreamStopped(const browser : ICefBrowser;
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audio_stream_id : integer);
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begin
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if (FEvents <> nil) then
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IChromiumEvents(FEvents).doOnAudioStreamStopped(browser,
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audio_stream_id);
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end;
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end.
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