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83 lines
2.3 KiB
83 lines
2.3 KiB
/* aKode: Encoder abstract-type
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Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef _AKODE_ENCODER_H
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#define _AKODE_ENCODER_H
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#include "pluginhandler.h"
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#include "sink.h"
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namespace aKode {
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class File;
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//! A generic interface for all encoders
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/*!
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* Encoders are specialized sinks that can write to files. Be aware that encoders in aKode 1.0
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* cannot handle tags. So the files should be tagged with TagLib after encoding.
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*/
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class Encoder : public Sink {
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public:
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/*!
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* Returns the current position in file/stream in milliseconds.
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* Notice that this position is not the necessarely the same as the
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* the one in the incoming stream.
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* Returns -1 if the position is unknown.
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*/
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virtual long position() = 0;
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/*!
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* Returns true if the encoder has encountered a non-recoverable error
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*/
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virtual bool error() = 0;
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};
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/*!
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* Parent class for encoder plugins
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*/
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class EncoderPlugin {
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public:
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/*!
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* Asks the plugin to open a Encoder that writes to the file \a dst
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*/
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virtual Encoder* openEncoder(File *dst) = 0;
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};
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/*!
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* Handler for encoder-plugins.
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*/
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class EncoderPluginHandler : public PluginHandler, public EncoderPlugin {
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public:
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EncoderPluginHandler() : encoder_plugin(0) {};
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EncoderPluginHandler(const string name);
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Encoder* openEncoder(File *dst);
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/*!
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* Loads a encoder-plugin by the \a name (flac, vorbis, lame..)
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*/
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virtual bool load(const string name);
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bool isLoaded() { return encoder_plugin != 0; };
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protected:
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EncoderPlugin* encoder_plugin;
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};
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} // namespace
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#endif
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