Warning, file /multimedia/k3b/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
     SPDX-FileCopyrightText: 1998-2008 Sebastian Trueg <trueg@k3b.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "k3bffmpegdecoder.h"
 #include "k3bffmpegwrapper.h"
 
 #include <config-k3b.h>
 
 #include <QDebug>
 
 extern "C" {
 /*
  Recent versions of FFmpeg uses C99 constant macros which are not present in C++ standard.
  The macro __STDC_CONSTANT_MACROS allow C++ to use these macros. Although it's not defined by C++ standard
  it's supported by many implementations.
  See bug 236036 and discussion: https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2010-May/095488.html
  */
 #define __STDC_CONSTANT_MACROS
 #ifdef NEWFFMPEGAVCODECPATH
 #include <libavcodec/avcodec.h>
 #else
 #include <ffmpeg/avcodec.h>
 #endif
 }
 
 #include <math.h>
 
 K_PLUGIN_CLASS_WITH_JSON(K3bFFMpegDecoderFactory, "k3bffmpegdecoder.json")
 
 K3bFFMpegDecoderFactory::K3bFFMpegDecoderFactory( QObject* parent, const QVariantList& )
     : K3b::AudioDecoderFactory( parent )
 {
 }
 
 
 K3bFFMpegDecoderFactory::~K3bFFMpegDecoderFactory()
 {
 }
 
 
 K3b::AudioDecoder* K3bFFMpegDecoderFactory::createDecoder( QObject* parent ) const
 {
     return new K3bFFMpegDecoder( parent);
 }
 
 
 bool K3bFFMpegDecoderFactory::canDecode( const QUrl& url )
 {
     K3bFFMpegFile* file = K3bFFMpegWrapper::instance()->open( url.toLocalFile() );
     if( file ) {
         delete file;
         return true;
     }
     else {
         return false;
     }
 }
 
 
 
 
 
 
 K3bFFMpegDecoder::K3bFFMpegDecoder( QObject* parent  )
     : K3b::AudioDecoder( parent ),
       m_file(0)
 {
 }
 
 
 K3bFFMpegDecoder::~K3bFFMpegDecoder()
 {
 }
 
 
 QString 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"
 
 #include "moc_k3bffmpegdecoder.cpp"