Added abandoned KDE3 version of K3B

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1084400 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

8 files changed, 799 insertions, 0 deletions

diff --git a/plugins/decoder/ffmpeg/Makefile.am b/plugins/decoder/ffmpeg/Makefile.am
new file mode 100644
index 0000000..b4c46e2
--- /dev/null
+++ b/plugins/decoder/ffmpeg/Makefile.am
@@ -0,0 +1,15 @@
+AM_CPPFLAGS = -I$(srcdir)/../../../libk3b/core -I$(srcdir)/../../../libk3b/plugin -I$(srcdir)/../../../libk3bdevice $(all_includes)
+KDE_CXXFLAGS = -D__STDC_CONSTANT_MACROS
+
+kde_module_LTLIBRARIES = libk3bffmpegdecoder.la
+
+libk3bffmpegdecoder_la_SOURCES = k3bffmpegdecoder.cpp k3bffmpegwrapper.cpp
+
+libk3bffmpegdecoder_la_LIBADD = ../../../libk3b/libk3b.la $(LIB_KDEUI) -lavcodec -lavformat
+libk3bffmpegdecoder_la_LDFLAGS = -avoid-version -module -no-undefined $(all_libraries)
+
+pluginsdir = $(kde_datadir)/k3b/plugins
+plugins_DATA = k3bffmpegdecoder.plugin
+
+METASOURCES = AUTO
+
diff --git a/plugins/decoder/ffmpeg/configure.in.bot b/plugins/decoder/ffmpeg/configure.in.bot
new file mode 100644
index 0000000..3d24645
--- /dev/null
+++ b/plugins/decoder/ffmpeg/configure.in.bot
@@ -0,0 +1,25 @@
+echo ""
+
+echo "K3b - FFMpeg decoder plugin (decodes wma and others):"
+if test  x$have_ffmpeg = xyes; then
+        echo "K3b -                                        yes"
+	if test x$enable_ffmpeg_all_codecs = xyes; then
+		echo "K3b -     WARNING: You enabled all codecs in the ffmpeg decoder plugin."
+		echo "K3b -              Be aware that most are not tested and track lengths"
+		echo "K3b -              will be wrong in many cases."
+	fi
+else
+        echo "K3b -                                         no"
+if test "$ac_cv_use_ffmpeg" = "yes"; then
+	if test "$ffmpeg_compiles" = "yes"; then
+		echo "K3b -     You are missing the ffmpeg libraries."
+		echo "K3b -     Make sure ffmpeg has been configured as a"
+		echo "K3b -     shared library (which is not the default)."
+	else
+		echo "K3b -     You are missing the ffmpeg headers and libraries"
+		echo "K3b -     version 0.4.9 or higher."
+	fi
+	echo "K3b -     The ffmpeg audio decoding plugin (decodes wma and"
+	echo "K3b -     others) won't be compiled."
+fi
+fi
diff --git a/plugins/decoder/ffmpeg/configure.in.in b/plugins/decoder/ffmpeg/configure.in.in
new file mode 100644
index 0000000..84b345a
--- /dev/null
+++ b/plugins/decoder/ffmpeg/configure.in.in
@@ -0,0 +1,68 @@
+dnl --------------- FFMPEG CHECK ---------------------------------
+
+AC_ARG_WITH(
+	ffmpeg, 
+	AS_HELP_STRING(
+		[--without-ffmpeg], 
+		[build K3b without ffmpeg audio decoder support (default=no)]),
+	[ac_cv_use_ffmpeg=$withval], 
+	[ac_cv_use_ffmpeg=yes]
+)
+
+#
+# The ffmpeg decoder plugin needs ffmpeg 0.4.9 or higher
+#
+have_ffmpeg=no
+if test "$ac_cv_use_ffmpeg" = "yes"; then
+	k3b_cxxflags_save="$CXXFLAGS"
+	CXXFLAGS="$CXXFLAGS -D__STDC_CONSTANT_MACROS"
+	AC_MSG_CHECKING(for ffmpeg >= 0.4.9)
+	AC_LANG_SAVE
+	AC_LANG_CPLUSPLUS
+	AC_COMPILE_IFELSE( 
+		extern "C" {
+		#include <libavformat/avformat.h>
+		#include <libavcodec/avcodec.h>
+		}
+
+		int main() {
+		  AVFormatContext* fc = 0;
+		  AVPacket* p = 0;
+		  av_register_all();
+		  return av_read_frame( fc, p );
+		},
+	[ffmpeg_compiles=yes], [ffmpeg_compiles=no] )
+	OLD_LIBS=$LIBS
+	LIBS="-lavformat -lavcodec $LIBS"
+	AC_LINK_IFELSE( 
+		extern "C" {
+		#include <libavformat/avformat.h>
+		#include <libavcodec/avcodec.h>
+		}
+
+		int main() {
+		  AVFormatContext* fc = 0;
+		  AVPacket* p = 0;
+		  av_register_all();
+		  return av_read_frame( fc, p );
+		},
+	[ffmpeg_links=yes], [ffmpeg_links=no] )
+	AC_LANG_RESTORE
+	LIBS=$OLD_LIBS
+	have_ffmpeg=$ffmpeg_links
+	AC_MSG_RESULT($have_ffmpeg)
+	CXXFLAGS=$k3b_cxxflags_save
+fi
+AM_CONDITIONAL(include_FFMPEG, [test x$have_ffmpeg = xyes])
+
+dnl --------------- FFMPEG CHECK END ------------------------------
+
+AC_ARG_ENABLE(
+	ffmpeg-all-codecs, 
+	AS_HELP_STRING(
+		[--enable-ffmpeg-all-codecs], 
+		[Build K3b's ffmeg decoder plugin with all audio codecs enabled (default=disabled)]),
+	[AC_DEFINE(K3B_FFMPEG_ALL_CODECS, 1, [Defined if all ffmpeg codecs should be allowed])
+	 enable_ffmpeg_all_codecs=yes], 
+	[enable_ffmpeg_all_codecs=no]
+)
diff --git a/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp b/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp
new file mode 100644
index 0000000..fd47c52
--- /dev/null
+++ b/plugins/decoder/ffmpeg/k3bffmpegdecoder.cpp
@@ -0,0 +1,155 @@
+/* 
+ *
+ * $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( QObject* parent, const char* name )
+  : K3bAudioDecoderFactory( parent, name )
+{
+}
+
+
+K3bFFMpegDecoderFactory::~K3bFFMpegDecoderFactory()
+{
+}
+
+
+K3bAudioDecoder* K3bFFMpegDecoderFactory::createDecoder( QObject* parent, 
+							 const char* name ) const
+{
+  return new K3bFFMpegDecoder( parent, 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( QObject* parent, const char* name )
+  : K3bAudioDecoder( parent, name ),
+    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"
diff --git a/plugins/decoder/ffmpeg/k3bffmpegdecoder.h b/plugins/decoder/ffmpeg/k3bffmpegdecoder.h
new file mode 100644
index 0000000..1c21827
--- /dev/null
+++ b/plugins/decoder/ffmpeg/k3bffmpegdecoder.h
@@ -0,0 +1,67 @@
+/* 
+ *
+ * $Id: k3bffmpegdecoder.h 619556 2007-01-03 17:38:12Z 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.
+ */
+
+#ifndef _K3B_FFMPEG_DECODER_H_
+#define _K3B_FFMPEG_DECODER_H_
+
+#include <k3baudiodecoder.h>
+
+class K3bFFMpegFile;
+
+
+class K3bFFMpegDecoderFactory : public K3bAudioDecoderFactory
+{
+  Q_OBJECT
+
+ public:
+  K3bFFMpegDecoderFactory( QObject* parent = 0, const char* name = 0 );
+  ~K3bFFMpegDecoderFactory();
+
+  bool canDecode( const KURL& filename );
+
+  int pluginSystemVersion() const { return 3; }
+
+  bool multiFormatDecoder() const { return true; }
+
+  K3bAudioDecoder* createDecoder( QObject* parent = 0, 
+				  const char* name = 0 ) const;
+};
+
+
+class K3bFFMpegDecoder : public K3bAudioDecoder
+{
+  Q_OBJECT
+
+ public:
+  K3bFFMpegDecoder( QObject* parent = 0, const char* name = 0 );
+  ~K3bFFMpegDecoder();
+
+  QString fileType() const;
+
+  void cleanup();
+
+ protected:
+  bool analyseFileInternal( K3b::Msf& frames, int& samplerate, int& ch );
+  bool initDecoderInternal();
+  bool seekInternal( const K3b::Msf& );
+
+  int decodeInternal( char* _data, int maxLen );
+
+ private:
+  K3bFFMpegFile* m_file;
+  QString m_type;
+};
+
+#endif
diff --git a/plugins/decoder/ffmpeg/k3bffmpegdecoder.plugin b/plugins/decoder/ffmpeg/k3bffmpegdecoder.plugin
new file mode 100644
index 0000000..3592388
--- /dev/null
+++ b/plugins/decoder/ffmpeg/k3bffmpegdecoder.plugin
@@ -0,0 +1,9 @@
+[K3b Plugin]
+Lib=libk3bffmpegdecoder
+Group=AudioDecoder
+Name=K3b FFMpeg Decoder
+Author=Sebastian Trueg
+Email=trueg@k3b.org
+Version=0.9.1
+Comment=Decoding module to decode wma files
+License=GPL
diff --git a/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp b/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp
new file mode 100644
index 0000000..514fd67
--- /dev/null
+++ b/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp
@@ -0,0 +1,375 @@
+/* 
+ *
+ * $Id: k3bffmpegwrapper.cpp 641819 2007-03-12 17:29:23Z trueg $
+ * Copyright (C) 2004-2007 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 "k3bffmpegwrapper.h"
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+#include <libavformat/avformat.h>
+}
+
+#include <string.h>
+
+#include <klocale.h>
+
+
+#if LIBAVFORMAT_BUILD < 4629
+#define FFMPEG_BUILD_PRE_4629
+#endif
+
+
+K3bFFMpegWrapper* K3bFFMpegWrapper::s_instance = 0;
+
+
+class K3bFFMpegFile::Private
+{
+public:
+  AVFormatContext* formatContext;
+  AVCodec* codec;
+
+  K3b::Msf length;
+
+  // for decoding
+  char outputBuffer[AVCODEC_MAX_AUDIO_FRAME_SIZE];
+  char* outputBufferPos;
+  int outputBufferSize;
+  AVPacket packet;
+  Q_UINT8* packetData;
+  int packetSize;
+};
+
+
+K3bFFMpegFile::K3bFFMpegFile( const QString& filename )
+  : m_filename(filename)
+{
+  d = new Private;
+  d->formatContext = 0;
+  d->codec = 0;
+}
+
+
+K3bFFMpegFile::~K3bFFMpegFile()
+{
+  close();
+  delete d;
+}
+
+
+bool K3bFFMpegFile::open()
+{
+  close();
+
+  // open the file
+  int err = av_open_input_file( &d->formatContext, m_filename.local8Bit(), 0, 0, 0 );
+  if( err < 0 ) {
+    kdDebug() << "(K3bFFMpegFile) unable to open " << m_filename << " with error " << err << endl;
+    return false;
+  }
+
+  // analyze the streams
+  av_find_stream_info( d->formatContext );
+
+  // we only handle files containing one audio stream
+  if( d->formatContext->nb_streams != 1 ) {
+    kdDebug() << "(K3bFFMpegFile) more than one stream in " << m_filename << endl;
+    return false;
+  }
+
+  // urgh... ugly
+#ifdef FFMPEG_BUILD_PRE_4629
+  AVCodecContext* codecContext =  &d->formatContext->streams[0]->codec;
+#else
+  AVCodecContext* codecContext =  d->formatContext->streams[0]->codec;
+#endif
+  if( codecContext->codec_type != CODEC_TYPE_AUDIO ) {
+    kdDebug() << "(K3bFFMpegFile) not a simple audio stream: " << m_filename << endl;
+    return false;
+  }
+
+  // get the codec
+  d->codec = avcodec_find_decoder(codecContext->codec_id);
+  if( !d->codec ) {
+    kdDebug() << "(K3bFFMpegFile) no codec found for " << m_filename << endl;
+    return false;
+  }
+
+  // open the codec on our context
+  kdDebug() << "(K3bFFMpegFile) found codec for " << m_filename << endl;
+  if( avcodec_open( codecContext, d->codec ) < 0 ) {
+    kdDebug() << "(K3bFFMpegDecoderFactory) could not open codec." << endl;
+    return false;
+  }
+
+  // determine the length of the stream
+  d->length = K3b::Msf::fromSeconds( (double)d->formatContext->duration / (double)AV_TIME_BASE );
+
+  if( d->length == 0 ) {
+    kdDebug() << "(K3bFFMpegDecoderFactory) invalid length." << endl;
+    return false;
+  }
+
+  // dump some debugging info
+  dump_format( d->formatContext, 0, m_filename.local8Bit(), 0 );
+
+  return true;
+}
+
+
+void K3bFFMpegFile::close()
+{
+  d->outputBufferSize = 0;
+  d->packetSize = 0;
+  d->packetData = 0;
+
+  if( d->codec ) {
+#ifdef FFMPEG_BUILD_PRE_4629
+    avcodec_close( &d->formatContext->streams[0]->codec );
+#else
+    avcodec_close( d->formatContext->streams[0]->codec );
+#endif
+    d->codec = 0;
+  }
+
+  if( d->formatContext ) {
+    av_close_input_file( d->formatContext );
+    d->formatContext = 0;
+  }
+}
+
+
+K3b::Msf K3bFFMpegFile::length() const
+{
+  return d->length;
+}
+
+
+int K3bFFMpegFile::sampleRate() const
+{
+#ifdef FFMPEG_BUILD_PRE_4629
+  return d->formatContext->streams[0]->codec.sample_rate;
+#else
+  return d->formatContext->streams[0]->codec->sample_rate;
+#endif
+}
+
+
+int K3bFFMpegFile::channels() const
+{
+#ifdef FFMPEG_BUILD_PRE_4629
+  return d->formatContext->streams[0]->codec.channels;
+#else
+  return d->formatContext->streams[0]->codec->channels;
+#endif
+}
+
+
+int K3bFFMpegFile::type() const
+{
+#ifdef FFMPEG_BUILD_PRE_4629
+  return d->formatContext->streams[0]->codec.codec_id;
+#else
+  return d->formatContext->streams[0]->codec->codec_id;
+#endif
+}
+
+
+QString K3bFFMpegFile::typeComment() const
+{
+  switch( type() ) {
+  case CODEC_ID_WMAV1:
+    return i18n("Windows Media v1");
+  case CODEC_ID_WMAV2:
+    return i18n("Windows Media v2");
+  case CODEC_ID_MP3:
+    return i18n("MPEG 1 Layer III");
+  case CODEC_ID_AAC:
+    return i18n("Advanced Audio Coding (AAC)");
+  default:
+    return QString::fromLocal8Bit( d->codec->name );
+  }
+}
+
+
+QString K3bFFMpegFile::title() const
+{
+  // FIXME: is this UTF8 or something??
+  if( d->formatContext->title[0] != '\0' )
+    return QString::fromLocal8Bit( d->formatContext->title );
+  else
+    return QString::null;
+}
+
+
+QString K3bFFMpegFile::author() const
+{
+  // FIXME: is this UTF8 or something??
+  if( d->formatContext->author[0] != '\0' )
+    return QString::fromLocal8Bit( d->formatContext->author );
+  else
+    return QString::null;
+}
+
+
+QString K3bFFMpegFile::comment() const
+{
+  // FIXME: is this UTF8 or something??
+  if( d->formatContext->comment[0] != '\0' )
+    return QString::fromLocal8Bit( d->formatContext->comment );
+  else
+    return QString::null;
+}
+
+
+int K3bFFMpegFile::read( char* buf, int bufLen )
+{
+  if( fillOutputBuffer() > 0 ) {
+    int len = QMIN(bufLen, d->outputBufferSize);
+    ::memcpy( buf, d->outputBufferPos, len );
+
+    // TODO: only swap if needed
+    for( int i = 0; i < len-1; i+=2 ) {
+      char a = buf[i];
+      buf[i] = buf[i+1];
+      buf[i+1] = a;
+    }
+
+    d->outputBufferPos += len;
+    d->outputBufferSize -= len;
+    return len;
+  }
+  else
+    return 0;
+}
+
+
+// fill d->packetData with data to decode
+int K3bFFMpegFile::readPacket()
+{
+  if( d->packetSize <= 0 ) {
+    av_init_packet( &d->packet );
+
+    if( av_read_frame( d->formatContext, &d->packet ) < 0 ) {
+      return 0;
+    }
+
+    d->packetSize = d->packet.size;
+    d->packetData = d->packet.data;
+  }
+
+  return d->packetSize;
+}
+
+
+// decode data in d->packetData and fill d->outputBuffer
+int K3bFFMpegFile::fillOutputBuffer()
+{
+  // decode if the output buffer is empty
+  if( d->outputBufferSize <= 0 ) {
+
+    // make sure we have data to decode
+    if( readPacket() == 0 ) {
+      return 0;
+    }
+
+    d->outputBufferPos = d->outputBuffer;
+
+#ifdef FFMPEG_BUILD_PRE_4629
+    int len = avcodec_decode_audio2( &d->formatContext->streams[0]->codec,
+#else
+    int len = avcodec_decode_audio2( d->formatContext->streams[0]->codec,
+#endif
+				    (short*)d->outputBuffer, &d->outputBufferSize,
+				    d->packetData, d->packetSize );
+
+    d->packetSize -= len;
+    d->packetData += len;
+
+    if( d->packetSize <= 0 )
+      av_free_packet( &d->packet );
+  }
+
+  // if it is still empty try again
+  if( d->outputBufferSize <= 0 )
+    return fillOutputBuffer();
+  else
+    return d->outputBufferSize;
+}
+
+
+bool K3bFFMpegFile::seek( const K3b::Msf& msf )
+{
+  d->outputBufferSize = 0;
+  d->packetSize = 0;
+
+  double seconds = (double)msf.totalFrames()/75.0;
+  Q_UINT64 timestamp = (Q_UINT64)(seconds * (double)AV_TIME_BASE);
+
+  // FIXME: do we really need the start_time and why?
+#if LIBAVFORMAT_BUILD >= 4619
+  return ( av_seek_frame( d->formatContext, -1, timestamp + d->formatContext->start_time, 0 ) >= 0 );
+#else
+  return ( av_seek_frame( d->formatContext, -1, timestamp + d->formatContext->start_time ) >= 0 );
+#endif
+}
+
+
+
+
+
+
+K3bFFMpegWrapper::K3bFFMpegWrapper()
+{
+  av_register_all();
+}
+
+
+K3bFFMpegWrapper::~K3bFFMpegWrapper()
+{
+  s_instance = 0;
+}
+
+
+K3bFFMpegWrapper* K3bFFMpegWrapper::instance()
+{
+  if( !s_instance ) {
+    s_instance = new K3bFFMpegWrapper();
+  }
+
+  return s_instance;
+}
+
+
+K3bFFMpegFile* K3bFFMpegWrapper::open( const QString& filename ) const
+{
+  K3bFFMpegFile* file = new K3bFFMpegFile( filename );
+  if( file->open() ) {
+#ifndef K3B_FFMPEG_ALL_CODECS
+    //
+    // only allow tested formats. ffmpeg seems not to be too reliable with every format.
+    // mp3 being one of them sadly. Most importantly: allow the libsndfile decoder to do
+    // its thing.
+    //
+    if( file->type() == CODEC_ID_WMAV1 ||
+	file->type() == CODEC_ID_WMAV2 ||
+	file->type() == CODEC_ID_AAC )
+#endif
+      return file;
+  }
+
+  delete file;
+  return 0;
+}
diff --git a/plugins/decoder/ffmpeg/k3bffmpegwrapper.h b/plugins/decoder/ffmpeg/k3bffmpegwrapper.h
new file mode 100644
index 0000000..63b5f58
--- /dev/null
+++ b/plugins/decoder/ffmpeg/k3bffmpegwrapper.h
@@ -0,0 +1,85 @@
+/* 
+ *
+ * $Id: k3bffmpegwrapper.h 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2004 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.
+ */
+
+#ifndef _K3B_FFMPEG_WRAPPER_H_
+#define _K3B_FFMPEG_WRAPPER_H_
+
+#include <k3bmsf.h>
+
+
+
+/**
+ * Create with K3bFFMpegWrapper::open
+ */
+class K3bFFMpegFile
+{
+  friend class K3bFFMpegWrapper;
+
+ public:
+  ~K3bFFMpegFile();
+
+  const QString& filename() const { return m_filename; }
+
+  bool open();
+  void close();
+
+  K3b::Msf length() const;
+  int sampleRate() const;
+  int channels() const;
+
+  /**
+   * ffmpeg internal enumeration
+   */
+  int type() const;
+  QString typeComment() const;
+
+  QString title() const;
+  QString author() const;
+  QString comment() const;
+
+  int read( char* buf, int bufLen );
+  bool seek( const K3b::Msf& );
+
+ private:
+  K3bFFMpegFile( const QString& filename );
+  int readPacket();
+  int fillOutputBuffer();
+
+  QString m_filename;
+
+  class Private;
+  Private* d;
+};
+
+
+class K3bFFMpegWrapper
+{
+ public:
+  ~K3bFFMpegWrapper();
+
+  /**
+   * returns 0 on failure.
+   */
+  K3bFFMpegFile* open( const QString& filename ) const;
+
+  static K3bFFMpegWrapper* instance();
+
+ private:
+  K3bFFMpegWrapper();
+
+  static K3bFFMpegWrapper* s_instance;
+};
+
+#endif