You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.3 KiB
83 lines
2.3 KiB
10 years ago
|
/* aKode: Encoder abstract-type
|
||
|
|
||
|
Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
|
||
|
|
||
|
This library is free software; you can redistribute it and/or
|
||
|
modify it under the terms of the GNU Library General Public
|
||
|
License as published by the Free Software Foundation; either
|
||
|
version 2 of the License, or (at your option) any later version.
|
||
|
|
||
|
This library 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
|
||
|
Library General Public License for more details.
|
||
|
|
||
|
You should have received a copy of the GNU Library General Public License
|
||
|
along with this library; see the file COPYING.LIB. If not, write to
|
||
|
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
|
||
|
Boston, MA 02110-1301, USA.
|
||
|
*/
|
||
|
|
||
|
#ifndef _AKODE_ENCODER_H
|
||
|
#define _AKODE_ENCODER_H
|
||
|
|
||
|
#include "pluginhandler.h"
|
||
|
#include "sink.h"
|
||
|
|
||
|
namespace aKode {
|
||
|
|
||
|
class File;
|
||
|
|
||
|
//! A generic interface for all encoders
|
||
|
|
||
|
/*!
|
||
|
* Encoders are specialized sinks that can write to files. Be aware that encoders in aKode 1.0
|
||
|
* cannot handle tags. So the files should be tagged with TagLib after encoding.
|
||
|
*/
|
||
|
class Encoder : public Sink {
|
||
|
public:
|
||
|
/*!
|
||
|
* Returns the current position in file/stream in milliseconds.
|
||
|
* Notice that this position is not the necessarely the same as the
|
||
|
* the one in the incoming stream.
|
||
|
* Returns -1 if the position is unknown.
|
||
|
*/
|
||
|
virtual long position() = 0;
|
||
|
/*!
|
||
|
* Returns true if the encoder has encountered a non-recoverable error
|
||
|
*/
|
||
|
virtual bool error() = 0;
|
||
|
};
|
||
|
|
||
|
/*!
|
||
|
* Parent class for encoder plugins
|
||
|
*/
|
||
|
class EncoderPlugin {
|
||
|
public:
|
||
|
/*!
|
||
|
* Asks the plugin to open a Encoder that writes to the file \a dst
|
||
|
*/
|
||
|
virtual Encoder* openEncoder(File *dst) = 0;
|
||
|
};
|
||
|
|
||
|
/*!
|
||
|
* Handler for encoder-plugins.
|
||
|
*/
|
||
|
class EncoderPluginHandler : public PluginHandler, public EncoderPlugin {
|
||
|
public:
|
||
|
EncoderPluginHandler() : encoder_plugin(0) {};
|
||
|
EncoderPluginHandler(const string name);
|
||
|
Encoder* openEncoder(File *dst);
|
||
|
/*!
|
||
|
* Loads a encoder-plugin by the \a name (flac, vorbis, lame..)
|
||
|
*/
|
||
|
virtual bool load(const string name);
|
||
|
bool isLoaded() { return encoder_plugin != 0; };
|
||
|
protected:
|
||
|
EncoderPlugin* encoder_plugin;
|
||
|
};
|
||
|
|
||
|
} // namespace
|
||
|
|
||
|
#endif
|