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authortobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-30 07:34:30 +0000
committertobigun <tobigun@b956fd51-792f-4845-bead-9b4dfca2ff2c>2010-10-30 07:34:30 +0000
commite5f7b9f18641141354f03e6a8281a347a2555927 (patch)
tree1cf682a0a2d7fd1fb6415977aadb9e72d725f48a /mediaplugin/src/media
parentf8f21b447558c911bcd4bbaaf45e9d7ba52e8fe1 (diff)
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dynamic loading of video- and audio-decoder
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/branches/experimental@2695 b956fd51-792f-4845-bead-9b4dfca2ff2c
Diffstat (limited to 'mediaplugin/src/media')
-rw-r--r--mediaplugin/src/media/UAudioConverter.pas15
-rw-r--r--mediaplugin/src/media/UAudioDecoder_FFmpeg.pas83
-rw-r--r--mediaplugin/src/media/UMediaPlugin.pas90
-rw-r--r--mediaplugin/src/media/UVideoDecoder_FFmpeg.pas88
4 files changed, 169 insertions, 107 deletions
diff --git a/mediaplugin/src/media/UAudioConverter.pas b/mediaplugin/src/media/UAudioConverter.pas
index aa3e343e..f2388b8f 100644
--- a/mediaplugin/src/media/UAudioConverter.pas
+++ b/mediaplugin/src/media/UAudioConverter.pas
@@ -194,6 +194,21 @@ end;
{$IFDEF UseFFmpegResample}
+const
+{$IFDEF MSWINDOWS}
+ ffmpegPlugin = 'ffmpeg_playback.dll';
+{$ENDIF}
+{$IFDEF LINUX}
+ ffmpegPlugin = 'ffmpeg_playback';
+{$ENDIF}
+{$IFDEF DARWIN}
+ ffmpegPlugin = 'ffmpeg_playback.dylib';
+ {$linklib ffmpegPlugin}
+{$ENDIF}
+
+function Plugin_register(core: PMediaPluginCore): PMediaPluginInfo;
+ cdecl; external ffmpegPlugin;
+
function TAudioConverter_FFmpeg.Init(SrcFormatInfo: TAudioFormatInfo; DstFormatInfo: TAudioFormatInfo): boolean;
var
CSrcFormatInfo: TCAudioFormatInfo;
diff --git a/mediaplugin/src/media/UAudioDecoder_FFmpeg.pas b/mediaplugin/src/media/UAudioDecoder_FFmpeg.pas
index 2865a7d8..6047cdd6 100644
--- a/mediaplugin/src/media/UAudioDecoder_FFmpeg.pas
+++ b/mediaplugin/src/media/UAudioDecoder_FFmpeg.pas
@@ -44,28 +44,45 @@ interface
{$I switches.inc}
+uses
+ UMediaPlugin,
+ UMusic,
+ UPath;
+
+type
+ TAudioDecoder_FFmpeg = class(TInterfacedObject, IAudioDecoder)
+ private
+ fPluginInfo: PMediaPluginInfo;
+ public
+ constructor Create(Info: PMediaPluginInfo);
+
+ function GetName: string;
+
+ function InitializeDecoder(): boolean;
+ function FinalizeDecoder(): boolean;
+ function Open(const Filename: IPath): TAudioDecodeStream;
+ end;
+
implementation
uses
ctypes,
Classes,
SysUtils,
- UMediaPlugin,
- UMusic,
UIni,
UMain,
- ULog,
- UPath;
+ ULog;
type
TFFmpegDecodeStream = class(TAudioDecodeStream)
private
+ fAudioDecoderInfo: PAudioDecoderInfo;
fFilename: IPath;
fStream: PAudioDecodeStream;
fFormatInfo: TAudioFormatInfo;
public
- constructor Create();
+ constructor Create(Info: PAudioDecoderInfo);
destructor Destroy(); override;
function Open(const Filename: IPath): boolean;
@@ -83,28 +100,12 @@ type
function ReadData(Buffer: PByteArray; BufferSize: integer): integer; override;
end;
-type
- TAudioDecoder_FFmpeg = class(TInterfacedObject, IAudioDecoder)
- private
- fPluginInfo: PMediaPluginInfo;
- public
- constructor Create();
-
- function GetName: string;
-
- function InitializeDecoder(): boolean;
- function FinalizeDecoder(): boolean;
- function Open(const Filename: IPath): TAudioDecodeStream;
- end;
-
-var
- AudioDecoderInfo: PAudioDecoderInfo;
-
{ TFFmpegDecodeStream }
-constructor TFFmpegDecodeStream.Create();
+constructor TFFmpegDecodeStream.Create(Info: PAudioDecoderInfo);
begin
inherited Create();
+ fAudioDecoderInfo := Info;
fFilename := PATH_NONE;
end;
@@ -125,13 +126,13 @@ begin
Close();
- fStream := AudioDecoderInfo.open(PChar(Filename.ToUTF8()));
+ fStream := fAudioDecoderInfo.open(PChar(Filename.ToUTF8()));
if (fStream = nil) then
Exit;
fFilename := Filename;
- AudioDecoderInfo.getAudioFormatInfo(fStream, Info);
+ fAudioDecoderInfo.getAudioFormatInfo(fStream, Info);
fFormatInfo := TAudioFormatInfo.Create(
Info.channels,
Info.sampleRate,
@@ -146,14 +147,14 @@ begin
Self.fFilename := PATH_NONE;
if (fStream <> nil) then
begin
- AudioDecoderInfo.close(fStream);
+ fAudioDecoderInfo.close(fStream);
fStream := nil;
end;
end;
function TFFmpegDecodeStream.GetLength(): real;
begin
- Result := AudioDecoderInfo.getLength(fStream);
+ Result := fAudioDecoderInfo.getLength(fStream);
end;
function TFFmpegDecodeStream.GetAudioFormatInfo(): TAudioFormatInfo;
@@ -163,46 +164,46 @@ end;
function TFFmpegDecodeStream.IsEOF(): boolean;
begin
- Result := AudioDecoderInfo.isEOF(fStream);
+ Result := fAudioDecoderInfo.isEOF(fStream);
end;
function TFFmpegDecodeStream.IsError(): boolean;
begin
- Result := AudioDecoderInfo.isError(fStream);
+ Result := fAudioDecoderInfo.isError(fStream);
end;
function TFFmpegDecodeStream.GetPosition(): real;
begin
- Result := AudioDecoderInfo.getPosition(fStream);
+ Result := fAudioDecoderInfo.getPosition(fStream);
end;
procedure TFFmpegDecodeStream.SetPosition(Time: real);
begin
- AudioDecoderInfo.setPosition(fStream, Time);
+ fAudioDecoderInfo.setPosition(fStream, Time);
end;
function TFFmpegDecodeStream.GetLoop(): boolean;
begin
- Result := AudioDecoderInfo.getLoop(fStream);
+ Result := fAudioDecoderInfo.getLoop(fStream);
end;
procedure TFFmpegDecodeStream.SetLoop(Enabled: boolean);
begin
- AudioDecoderInfo.setLoop(fStream, Enabled);
+ fAudioDecoderInfo.setLoop(fStream, Enabled);
end;
function TFFmpegDecodeStream.ReadData(Buffer: PByteArray; BufferSize: integer): integer;
begin
- Result := AudioDecoderInfo.readData(fStream, PCUint8(Buffer), BufferSize);
+ Result := fAudioDecoderInfo.readData(fStream, PCUint8(Buffer), BufferSize);
end;
{ TAudioDecoder_FFmpeg }
-constructor TAudioDecoder_FFmpeg.Create();
+constructor TAudioDecoder_FFmpeg.Create(Info: PMediaPluginInfo);
begin
inherited Create();
- fPluginInfo := Plugin_register(MediaPluginCore);
+ fPluginInfo := Info;
end;
function TAudioDecoder_FFmpeg.GetName: String;
@@ -212,14 +213,13 @@ end;
function TAudioDecoder_FFmpeg.InitializeDecoder: boolean;
begin
- fPluginInfo.initialize();
- AudioDecoderInfo := fPluginInfo.audioDecoder;
+ //fPluginInfo.initialize();
Result := true;
end;
function TAudioDecoder_FFmpeg.FinalizeDecoder(): boolean;
begin
- fPluginInfo.finalize();
+ //fPluginInfo.finalize();
Result := true;
end;
@@ -229,7 +229,7 @@ var
begin
Result := nil;
- Stream := TFFmpegDecodeStream.Create();
+ Stream := TFFmpegDecodeStream.Create(fPluginInfo.audioDecoder);
if (not Stream.Open(Filename)) then
begin
Stream.Free;
@@ -239,7 +239,4 @@ begin
Result := Stream;
end;
-initialization
- MediaManager.Add(TAudioDecoder_FFmpeg.Create);
-
end.
diff --git a/mediaplugin/src/media/UMediaPlugin.pas b/mediaplugin/src/media/UMediaPlugin.pas
index 2eb0772e..0c0f7fb9 100644
--- a/mediaplugin/src/media/UMediaPlugin.pas
+++ b/mediaplugin/src/media/UMediaPlugin.pas
@@ -47,9 +47,9 @@ type
PMediaPluginCore = ^TMediaPluginCore;
TMediaPluginCore = record
- version: cint;
+ version: cint;
- log: procedure(level: cint; msg: PChar; context: PChar); cdecl;
+ log: procedure(level: cint; msg: PChar; context: PChar); cdecl;
ticksMillis: function(): cuint32; cdecl;
fileOpen: function(utf8Filename: PAnsiChar; mode: cint): PFileStream; cdecl;
@@ -138,23 +138,9 @@ type
videoDecoder: PVideoDecoderInfo;
end;
- Plugin_registerFunc = function(core: PMediaPluginCore): PMediaPluginInfo; cdecl;
-
-const
-{$IFDEF MSWINDOWS}
- ffmpegPlugin = 'ffmpeg_playback.dll';
-{$ENDIF}
-{$IFDEF LINUX}
- ffmpegPlugin = 'ffmpeg_playback';
-{$ENDIF}
-{$IFDEF DARWIN}
- ffmpegPlugin = 'ffmpeg_playback.dylib';
- {$linklib ffmpegPlugin}
-{$ENDIF}
-
-function Plugin_register(core: PMediaPluginCore): PMediaPluginInfo;
- cdecl; external ffmpegPlugin;
+ TPluginRegisterFunc = function(core: PMediaPluginCore): PMediaPluginInfo; cdecl;
+procedure LoadMediaPlugins();
function MediaPluginCore: PMediaPluginCore;
@@ -164,8 +150,15 @@ procedure AudioFormatInfoToCStruct(
implementation
uses
+ SysUtils,
SDL,
- ULog;
+ moduleloader,
+ UFilesystem,
+ UPath,
+ UPathUtils,
+ ULog,
+ UAudioDecoder_FFmpeg,
+ UVideoDecoder_FFmpeg;
var
MediaPluginCore_Instance: TMediaPluginCore;
@@ -349,6 +342,65 @@ begin
end;
end;
+procedure LoadMediaPlugins();
+var
+ LibPath: IPath;
+ Iter: IFileIterator;
+ FileInfo: TFileInfo;
+ ModuleFile: IPath;
+ Module: TModuleHandle;
+ RegisterFunc: TPluginRegisterFunc;
+ PluginInfo: PMediaPluginInfo;
+begin
+ LibPath := MediaPluginPath.Append('*.dll');
+ Iter := FileSystem.FileFind(LibPath, faAnyFile);
+ while (Iter.HasNext) do
+ begin
+ FileInfo := Iter.Next();
+ ModuleFile := MediaPluginPath.Append(FileInfo.Name);
+ if (not LoadModule(Module, PChar(ModuleFile.ToNative))) then
+ begin
+ Log.LogInfo('Failed to load media plugin: "' + FileInfo.Name.ToNative + '"',
+ 'LoadMediaPlugins');
+ Continue;
+ end;
+ RegisterFunc := GetModuleSymbol(Module, 'Plugin_register');
+ if (@RegisterFunc = nil) then
+ begin
+ Log.LogError('Invalid media plugin: "' + FileInfo.Name.ToNative + '"',
+ 'LoadMediaPlugins');
+ UnloadModule(Module);
+ Continue;
+ end;
+ PluginInfo := RegisterFunc(MediaPluginCore);
+ if (PluginInfo = nil) then
+ begin
+ Log.LogError('Invalid media plugin info: "' + FileInfo.Name.ToNative + '"',
+ 'LoadMediaPlugins');
+ UnloadModule(Module);
+ Continue;
+ end;
+ if (not PluginInfo.initialize()) then
+ begin
+ Log.LogError('Failed to initialize media plugin: "' + PluginInfo.name + '"',
+ 'LoadMediaPlugins');
+ UnloadModule(Module);
+ Continue;
+ end;
+
+ Log.LogStatus('Loaded media plugin: "' + PluginInfo.name + '"',
+ 'LoadMediaPlugins');
+
+ // register modules
+ if (PluginInfo.audioDecoder <> nil) then
+ MediaManager.Add(TAudioDecoder_FFmpeg.Create(PluginInfo));
+ if (PluginInfo.videoDecoder <> nil) then
+ MediaManager.Add(TVideoDecoder_FFmpeg.Create(PluginInfo));
+ //if (PluginInfo.audioConverter <> nil) then
+ // MediaManager.Add();
+ end;
+end;
+
initialization
InitializeMediaPluginCore;
diff --git a/mediaplugin/src/media/UVideoDecoder_FFmpeg.pas b/mediaplugin/src/media/UVideoDecoder_FFmpeg.pas
index 51916276..b8b72a9d 100644
--- a/mediaplugin/src/media/UVideoDecoder_FFmpeg.pas
+++ b/mediaplugin/src/media/UVideoDecoder_FFmpeg.pas
@@ -33,27 +33,45 @@ interface
{$I switches.inc}
+uses
+ UMediaPlugin,
+ UMusic,
+ UPath;
+
+type
+ TVideoDecoder_FFmpeg = class( TInterfacedObject, IVideoDecoder )
+ private
+ fPluginInfo: PMediaPluginInfo;
+ public
+ constructor Create(Info: PMediaPluginInfo);
+
+ function GetName: String;
+
+ function InitializeDecoder(): boolean;
+ function FinalizeDecoder: boolean;
+
+ function Open(const FileName: IPath): TVideoDecodeStream;
+ end;
+
implementation
uses
SysUtils,
Math,
- UMediaPlugin,
+ ctypes,
UCommon,
UConfig,
- ULog,
- UMusic,
- UPath;
+ ULog;
type
TVideoDecodeStream_FFmpeg = class (TVideoDecodeStream)
private
- private
- fFilename: IPath;
- fStream: PVideoDecodeStream;
+ fVideoDecoderInfo: PVideoDecoderInfo;
+ fFilename: IPath;
+ fStream: PVideoDecodeStream;
public
- constructor Create;
+ constructor Create(Info: PVideoDecoderInfo);
destructor Destroy; override;
function Open(const FileName: IPath): boolean; override;
@@ -72,31 +90,14 @@ type
function GetFrame(Time: Extended): PByteArray; override;
end;
- TVideoDecoder_FFmpeg = class( TInterfacedObject, IVideoDecoder )
- private
- fPluginInfo: PMediaPluginInfo;
- public
- constructor Create();
-
- function GetName: String;
-
- function InitializeDecoder(): boolean;
- function FinalizeDecoder: boolean;
-
- function Open(const FileName: IPath): TVideoDecodeStream;
- end;
-
-var
- VideoDecoderInfo: PVideoDecoderInfo;
-
{*------------------------------------------------------------------------------
* TVideoPlayback_ffmpeg
*------------------------------------------------------------------------------}
-constructor TVideoDecoder_FFmpeg.Create();
+constructor TVideoDecoder_FFmpeg.Create(Info: PMediaPluginInfo);
begin
inherited Create();
- fPluginInfo := Plugin_register(MediaPluginCore);
+ fPluginInfo := Info;
end;
function TVideoDecoder_FFmpeg.GetName: String;
@@ -106,14 +107,13 @@ end;
function TVideoDecoder_FFmpeg.InitializeDecoder(): boolean;
begin
- fPluginInfo.initialize();
- VideoDecoderInfo := fPluginInfo.videoDecoder;
+ //fPluginInfo.initialize();
Result := true;
end;
function TVideoDecoder_FFmpeg.FinalizeDecoder(): boolean;
begin
- fPluginInfo.finalize();
+ //fPluginInfo.finalize();
Result := true;
end;
@@ -123,7 +123,7 @@ var
begin
Result := nil;
- Stream := TVideoDecodeStream_FFmpeg.Create;
+ Stream := TVideoDecodeStream_FFmpeg.Create(fPluginInfo.videoDecoder);
if (not Stream.Open(FileName)) then
begin
Stream.Free;
@@ -136,9 +136,10 @@ end;
{* TVideoDecoder_FFmpeg *}
-constructor TVideoDecodeStream_FFmpeg.Create;
+constructor TVideoDecodeStream_FFmpeg.Create(Info: PVideoDecoderInfo);
begin
inherited Create();
+ fVideoDecoderInfo := Info;
fFilename := PATH_NONE;
end;
@@ -154,7 +155,7 @@ begin
Close();
- fStream := VideoDecoderInfo.open(PChar(Filename.ToUTF8()));
+ fStream := fVideoDecoderInfo.open(PChar(Filename.ToUTF8()));
if (fStream = nil) then
Exit;
@@ -168,52 +169,49 @@ begin
Self.fFilename := PATH_NONE;
if (fStream <> nil) then
begin
- VideoDecoderInfo.close(fStream);
+ fVideoDecoderInfo.close(fStream);
fStream := nil;
end;
end;
function TVideoDecodeStream_FFmpeg.GetFrame(Time: Extended): PByteArray;
begin
- Result := PByteArray(VideoDecoderInfo.getFrame(fStream, Time));
+ Result := PByteArray(fVideoDecoderInfo.getFrame(fStream, Time));
end;
procedure TVideoDecodeStream_FFmpeg.SetLoop(Enable: boolean);
begin
- VideoDecoderInfo.setLoop(fStream, Enable);
+ fVideoDecoderInfo.setLoop(fStream, Enable);
end;
function TVideoDecodeStream_FFmpeg.GetLoop(): boolean;
begin
- Result := VideoDecoderInfo.getLoop(fStream);
+ Result := fVideoDecoderInfo.getLoop(fStream);
end;
procedure TVideoDecodeStream_FFmpeg.SetPosition(Time: real);
begin
- VideoDecoderInfo.setPosition(fStream, Time);
+ fVideoDecoderInfo.setPosition(fStream, Time);
end;
function TVideoDecodeStream_FFmpeg.GetPosition: real;
begin
- Result := VideoDecoderInfo.getPosition(fStream);
+ Result := fVideoDecoderInfo.getPosition(fStream);
end;
function TVideoDecodeStream_FFmpeg.GetFrameWidth(): integer;
begin
- Result := VideoDecoderInfo.getFrameWidth(fStream);
+ Result := fVideoDecoderInfo.getFrameWidth(fStream);
end;
function TVideoDecodeStream_FFmpeg.GetFrameHeight(): integer;
begin
- Result := VideoDecoderInfo.getFrameHeight(fStream);
+ Result := fVideoDecoderInfo.getFrameHeight(fStream);
end;
function TVideoDecodeStream_FFmpeg.GetFrameAspect(): real;
begin
- Result := VideoDecoderInfo.getFrameAspect(fStream);
+ Result := fVideoDecoderInfo.getFrameAspect(fStream);
end;
-initialization
- MediaManager.Add(TVideoDecoder_FFmpeg.Create);
-
end.