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.
156 lines
3.1 KiB
156 lines
3.1 KiB
/*
|
|
*
|
|
* $Id: k3bffmpegdecoder.cpp 641798 2007-03-12 16:07:10Z trueg $
|
|
* Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* This file is part of the K3b project.
|
|
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
|
|
*
|
|
* 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.
|
|
* See the file "COPYING" for the exact licensing terms.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "k3bffmpegdecoder.h"
|
|
#include "k3bffmpegwrapper.h"
|
|
|
|
#include <kdebug.h>
|
|
#include <k3bpluginfactory.h>
|
|
|
|
extern "C" {
|
|
#include <libavcodec/avcodec.h>
|
|
}
|
|
|
|
#include <math.h>
|
|
|
|
|
|
K_EXPORT_COMPONENT_FACTORY( libk3bffmpegdecoder, K3bPluginFactory<K3bFFMpegDecoderFactory>( "k3bffmpegdecoder" ) )
|
|
|
|
|
|
K3bFFMpegDecoderFactory::K3bFFMpegDecoderFactory( TQObject* tqparent, const char* name )
|
|
: K3bAudioDecoderFactory( tqparent, name )
|
|
{
|
|
}
|
|
|
|
|
|
K3bFFMpegDecoderFactory::~K3bFFMpegDecoderFactory()
|
|
{
|
|
}
|
|
|
|
|
|
K3bAudioDecoder* K3bFFMpegDecoderFactory::createDecoder( TQObject* tqparent,
|
|
const char* name ) const
|
|
{
|
|
return new K3bFFMpegDecoder( tqparent, name );
|
|
}
|
|
|
|
|
|
bool K3bFFMpegDecoderFactory::canDecode( const KURL& url )
|
|
{
|
|
K3bFFMpegFile* file = K3bFFMpegWrapper::instance()->open( url.path() );
|
|
if( file ) {
|
|
delete file;
|
|
return true;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
K3bFFMpegDecoder::K3bFFMpegDecoder( TQObject* tqparent, const char* name )
|
|
: K3bAudioDecoder( tqparent, name ),
|
|
m_file(0)
|
|
{
|
|
}
|
|
|
|
|
|
K3bFFMpegDecoder::~K3bFFMpegDecoder()
|
|
{
|
|
}
|
|
|
|
|
|
TQString K3bFFMpegDecoder::fileType() const
|
|
{
|
|
return m_type;
|
|
}
|
|
|
|
|
|
bool K3bFFMpegDecoder::analyseFileInternal( K3b::Msf& frames, int& samplerate, int& ch )
|
|
{
|
|
m_file = K3bFFMpegWrapper::instance()->open( filename() );
|
|
if( m_file ) {
|
|
|
|
// TODO: call addTechnicalInfo
|
|
|
|
addMetaInfo( META_TITLE, m_file->title() );
|
|
addMetaInfo( META_ARTIST, m_file->author() );
|
|
addMetaInfo( META_COMMENT, m_file->comment() );
|
|
|
|
samplerate = m_file->sampleRate();
|
|
ch = m_file->channels();
|
|
m_type = m_file->typeComment();
|
|
frames = m_file->length();
|
|
|
|
// ffmpeg's length information is not reliable at all
|
|
// so we have to decode the whole file in order to get the correct length
|
|
// char buffer[10*2048];
|
|
// int len = 0;
|
|
// unsigned long long bytes = 0;
|
|
// while( ( len = m_file->read( buffer, 10*2048 ) ) > 0 )
|
|
// bytes += len;
|
|
|
|
// frames = (unsigned long)ceil((double)bytes/2048.0);
|
|
|
|
// cleanup;
|
|
delete m_file;
|
|
m_file = 0;
|
|
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
|
|
bool K3bFFMpegDecoder::initDecoderInternal()
|
|
{
|
|
if( !m_file )
|
|
m_file = K3bFFMpegWrapper::instance()->open( filename() );
|
|
|
|
return (m_file != 0);
|
|
}
|
|
|
|
|
|
void K3bFFMpegDecoder::cleanup()
|
|
{
|
|
delete m_file;
|
|
m_file = 0;
|
|
}
|
|
|
|
|
|
bool K3bFFMpegDecoder::seekInternal( const K3b::Msf& msf )
|
|
{
|
|
if( msf == 0 )
|
|
return initDecoderInternal();
|
|
else
|
|
return m_file->seek( msf );
|
|
}
|
|
|
|
|
|
int K3bFFMpegDecoder::decodeInternal( char* _data, int maxLen )
|
|
{
|
|
return m_file->read( _data, maxLen );
|
|
}
|
|
|
|
|
|
#include "k3bffmpegdecoder.moc"
|