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mirror of https://github.com/salvadordf/CEF4Delphi.git synced 2024-12-14 09:42:54 +02:00
CEF4Delphi/source/uCEFAudioHandler.pas
Salvador Díaz Fau fd1e936198 Update to CEF 79.0.10
- Removed CEFSentinel from some demos because it's no longer necessary.
- Updated copyright year.
2020-01-01 12:48:10 +01:00

248 lines
10 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
// browser in Delphi applications.
//
// The original license of DCEF3 still applies to CEF4Delphi.
//
// For more information about CEF4Delphi visit :
// https://www.briskbard.com/index.php?lang=en&pageid=cef
//
// Copyright © 2020 Salvador Diaz Fau. All rights reserved.
//
// ************************************************************************
// ************ vvvv Original license and comments below vvvv *************
// ************************************************************************
(*
* Delphi Chromium Embedded 3
*
* Usage allowed under the restrictions of the Lesser GNU General Public License
* or alternatively the restrictions of the Mozilla Public License 1.1
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
* Web site : http://www.progdigy.com
* Repository : http://code.google.com/p/delphichromiumembedded/
* Group : http://groups.google.com/group/delphichromiumembedded
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
*)
unit uCEFAudioHandler;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCefAudioHandlerOwn = class(TCefBaseRefCountedOwn, ICefAudioHandler)
protected
procedure OnAudioStreamStarted(const browser: ICefBrowser; audio_stream_id, channels: integer; channel_layout: TCefChannelLayout; sample_rate, frames_per_buffer: integer); virtual;
procedure OnAudioStreamPacket(const browser: ICefBrowser; audio_stream_id: integer; const data : PPSingle; frames: integer; pts: int64); virtual;
procedure OnAudioStreamStopped(const browser: ICefBrowser; audio_stream_id: integer); virtual;
procedure RemoveReferences; virtual;
public
constructor Create; virtual;
end;
TCustomAudioHandler = class(TCefAudioHandlerOwn)
protected
FEvents : Pointer;
procedure OnAudioStreamStarted(const browser: ICefBrowser; audio_stream_id, channels: integer; channel_layout: TCefChannelLayout; sample_rate, frames_per_buffer: integer); override;
procedure OnAudioStreamPacket(const browser: ICefBrowser; audio_stream_id: integer; const data : PPSingle; frames: integer; pts: int64); override;
procedure OnAudioStreamStopped(const browser: ICefBrowser; audio_stream_id: integer); override;
procedure RemoveReferences; override;
public
constructor Create(const events : IChromiumEvents); reintroduce; virtual;
destructor Destroy; override;
end;
implementation
uses
{$IFDEF DELPHI16_UP}
System.SysUtils,
{$ELSE}
SysUtils,
{$ENDIF}
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser;
procedure cef_audio_handler_on_audio_stream_started(self : PCefAudioHandler;
browser : PCefBrowser;
audio_stream_id : integer;
channels : integer;
channel_layout : TCefChannelLayout;
sample_rate : integer;
frames_per_buffer : integer); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
TCefAudioHandlerOwn(TempObject).OnAudioStreamStarted(TCefBrowserRef.UnWrap(browser),
audio_stream_id,
channels,
channel_layout,
sample_rate,
frames_per_buffer);
end;
procedure cef_audio_handler_on_audio_stream_packet( self : PCefAudioHandler;
browser : PCefBrowser;
audio_stream_id : integer;
const data : PPSingle;
frames : integer;
pts : int64); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
TCefAudioHandlerOwn(TempObject).OnAudioStreamPacket(TCefBrowserRef.UnWrap(browser),
audio_stream_id,
data,
frames,
pts);
end;
procedure cef_audio_handler_on_audio_stream_stopped(self : PCefAudioHandler;
browser : PCefBrowser;
audio_stream_id : integer); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefAudioHandlerOwn) then
TCefAudioHandlerOwn(TempObject).OnAudioStreamStopped(TCefBrowserRef.UnWrap(browser),
audio_stream_id);
end;
constructor TCefAudioHandlerOwn.Create;
begin
inherited CreateData(SizeOf(TCefAudioHandler));
with PCefAudioHandler(FData)^ do
begin
on_audio_stream_started := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_started;
on_audio_stream_packet := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_packet;
on_audio_stream_stopped := {$IFDEF FPC}@{$ENDIF}cef_audio_handler_on_audio_stream_stopped;
end;
end;
procedure TCefAudioHandlerOwn.OnAudioStreamStarted(const browser : ICefBrowser;
audio_stream_id : integer;
channels : integer;
channel_layout : TCefChannelLayout;
sample_rate : integer;
frames_per_buffer : integer);
begin
//
end;
procedure TCefAudioHandlerOwn.OnAudioStreamPacket(const browser : ICefBrowser;
audio_stream_id : integer;
const data : PPSingle;
frames : integer;
pts : int64);
begin
//
end;
procedure TCefAudioHandlerOwn.OnAudioStreamStopped(const browser : ICefBrowser;
audio_stream_id : integer);
begin
//
end;
procedure TCefAudioHandlerOwn.RemoveReferences;
begin
//
end;
// TCustomAudioHandler
constructor TCustomAudioHandler.Create(const events : IChromiumEvents);
begin
inherited Create;
FEvents := Pointer(events);
end;
destructor TCustomAudioHandler.Destroy;
begin
RemoveReferences;
inherited Destroy;
end;
procedure TCustomAudioHandler.RemoveReferences;
begin
FEvents := nil;
end;
procedure TCustomAudioHandler.OnAudioStreamStarted(const browser : ICefBrowser;
audio_stream_id : integer;
channels : integer;
channel_layout : TCefChannelLayout;
sample_rate : integer;
frames_per_buffer : integer);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnAudioStreamStarted(browser,
audio_stream_id,
channels,
channel_layout,
sample_rate,
frames_per_buffer);
end;
procedure TCustomAudioHandler.OnAudioStreamPacket(const browser : ICefBrowser;
audio_stream_id : integer;
const data : PPSingle;
frames : integer;
pts : int64);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnAudioStreamPacket(browser,
audio_stream_id,
data,
frames,
pts);
end;
procedure TCustomAudioHandler.OnAudioStreamStopped(const browser : ICefBrowser;
audio_stream_id : integer);
begin
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnAudioStreamStopped(browser,
audio_stream_id);
end;
end.