1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
{* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*}
unit UVideoDecoderPlugin;
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
uses
UMediaPlugin,
UMusic,
UPath;
type
TVideoDecoderPlugin = class(TInterfacedObject, IMediaInterface, IVideoDecoder)
private
fPluginInfo: PMediaPluginInfo;
public
constructor Create(Info: PMediaPluginInfo);
function GetName(): String;
function GetPriority(): integer;
function InitializeDecoder(): boolean;
function FinalizeDecoder: boolean;
function Open(const FileName: IPath): TVideoDecodeStream;
end;
implementation
uses
SysUtils,
Math,
ctypes,
UCommon,
UConfig,
ULog;
type
TPluginVideoDecodeStream = class (TVideoDecodeStream)
private
fVideoDecoderInfo: PVideoDecoderInfo;
fFilename: IPath;
fStream: PVideoDecodeStream;
public
constructor Create(Info: PVideoDecoderInfo);
destructor Destroy; override;
function Open(const FileName: IPath): boolean; override;
procedure Close; override;
procedure SetLoop(Enable: boolean); override;
function GetLoop(): boolean; override;
procedure SetPosition(Time: real); override;
function GetPosition: real; override;
function GetFrameWidth(): integer; override;
function GetFrameHeight(): integer; override;
function GetFrameAspect(): real; override;
function GetFrame(Time: Extended): PByteArray; override;
end;
{ TVideoDecoderPlugin }
constructor TVideoDecoderPlugin.Create(Info: PMediaPluginInfo);
begin
inherited Create();
fPluginInfo := Info;
end;
function TVideoDecoderPlugin.GetName(): String;
begin
Result := 'Plugin:VideoDecoder:' + fPluginInfo.name;
end;
function TVideoDecoderPlugin.GetPriority(): integer;
begin
Result := fPluginInfo.videoDecoder.priority;
end;
function TVideoDecoderPlugin.InitializeDecoder(): boolean;
begin
fPluginInfo.videoDecoder.init();
Result := true;
end;
function TVideoDecoderPlugin.FinalizeDecoder(): boolean;
begin
fPluginInfo.videoDecoder.finalize();
Result := true;
end;
function TVideoDecoderPlugin.Open(const FileName : IPath): TVideoDecodeStream;
var
Stream: TPluginVideoDecodeStream;
begin
Result := nil;
Stream := TPluginVideoDecodeStream.Create(fPluginInfo.videoDecoder);
if (not Stream.Open(FileName)) then
begin
Stream.Free;
Exit;
end;
Result := Stream
end;
{ TPluginVideoDecodeStream }
constructor TPluginVideoDecodeStream.Create(Info: PVideoDecoderInfo);
begin
inherited Create();
fVideoDecoderInfo := Info;
fFilename := PATH_NONE;
end;
destructor TPluginVideoDecodeStream.Destroy;
begin
Close();
inherited;
end;
function TPluginVideoDecodeStream.Open(const FileName: IPath): boolean;
begin
Result := false;
Close();
fStream := fVideoDecoderInfo.open(PChar(Filename.ToUTF8()));
if (fStream = nil) then
Exit;
fFilename := Filename;
Result := true;
end;
procedure TPluginVideoDecodeStream.Close;
begin
Self.fFilename := PATH_NONE;
if (fStream <> nil) then
begin
fVideoDecoderInfo.close(fStream);
fStream := nil;
end;
end;
function TPluginVideoDecodeStream.GetFrame(Time: Extended): PByteArray;
begin
Result := PByteArray(fVideoDecoderInfo.getFrame(fStream, Time));
end;
procedure TPluginVideoDecodeStream.SetLoop(Enable: boolean);
begin
fVideoDecoderInfo.setLoop(fStream, Enable);
end;
function TPluginVideoDecodeStream.GetLoop(): boolean;
begin
Result := fVideoDecoderInfo.getLoop(fStream);
end;
procedure TPluginVideoDecodeStream.SetPosition(Time: real);
begin
fVideoDecoderInfo.setPosition(fStream, Time);
end;
function TPluginVideoDecodeStream.GetPosition: real;
begin
Result := fVideoDecoderInfo.getPosition(fStream);
end;
function TPluginVideoDecodeStream.GetFrameWidth(): integer;
begin
Result := fVideoDecoderInfo.getFrameWidth(fStream);
end;
function TPluginVideoDecodeStream.GetFrameHeight(): integer;
begin
Result := fVideoDecoderInfo.getFrameHeight(fStream);
end;
function TPluginVideoDecodeStream.GetFrameAspect(): real;
begin
Result := fVideoDecoderInfo.getFrameAspect(fStream);
end;
end.
|
