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292 lines
8.5 KiB
292 lines
8.5 KiB
/*
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*
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* $Id: sourceheader 511311 2006-02-19 14:51:05Z trueg $
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* Copyright (C) 2006 Sebastian Trueg <trueg@k3b.org>
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*
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* This file is part of the K3b project.
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* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* See the file "COPYING" for the exact licensing terms.
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*/
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#include "k3bvideodvdtitledetectclippingjob.h"
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#include <k3bexternalbinmanager.h>
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#include <k3bprocess.h>
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#include <k3bcore.h>
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#include <k3bglobals.h>
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#include <tdelocale.h>
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#include <kdebug.h>
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static const int s_unrealisticHighClippingValue = 100000;
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class K3bVideoDVDTitleDetectClippingJob::Private
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{
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public:
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const K3bExternalBin* usedTranscodeBin;
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K3bProcess* process;
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bool canceled;
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unsigned int currentChapter;
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unsigned int currentFrames;
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unsigned int totalChapters;
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int lastProgress;
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int lastSubProgress;
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};
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K3bVideoDVDTitleDetectClippingJob::K3bVideoDVDTitleDetectClippingJob( K3bJobHandler* hdl, TQObject* parent )
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: K3bJob( hdl, parent ),
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m_clippingTop( 0 ),
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m_clippingBottom( 0 ),
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m_clippingLeft( 0 ),
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m_clippingRight( 0 ),
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m_lowPriority( true )
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{
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d = new Private;
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d->process = 0;
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}
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K3bVideoDVDTitleDetectClippingJob::~K3bVideoDVDTitleDetectClippingJob()
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{
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delete d->process;
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delete d;
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}
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void K3bVideoDVDTitleDetectClippingJob::start()
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{
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jobStarted();
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d->canceled = false;
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d->lastProgress = 0;
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//
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// It seems as if the last chapter is often way too short
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//
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d->totalChapters = m_dvd[m_titleNumber-1].numPTTs();
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if( d->totalChapters > 1 && m_dvd[m_titleNumber-1][d->totalChapters-1].playbackTime().totalFrames() < 200 )
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d->totalChapters--;
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// initial values (some way to big value)
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m_clippingTop = s_unrealisticHighClippingValue;
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m_clippingBottom = s_unrealisticHighClippingValue;
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m_clippingLeft = s_unrealisticHighClippingValue;
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m_clippingRight = s_unrealisticHighClippingValue;
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d->usedTranscodeBin = k3bcore->externalBinManager()->binObject("transcode");
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if( !d->usedTranscodeBin ) {
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emit infoMessage( i18n("%1 executable could not be found.").arg("transcode"), ERROR );
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jobFinished( false );
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return;
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}
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if( d->usedTranscodeBin->version < K3bVersion( 1, 0, 0 ) ){
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emit infoMessage( i18n("%1 version %2 is too old.")
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.arg("transcode")
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.arg(d->usedTranscodeBin->version), ERROR );
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jobFinished( false );
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return;
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}
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emit debuggingOutput( "Used versions", "transcode: " + d->usedTranscodeBin->version );
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if( !d->usedTranscodeBin->copyright.isEmpty() )
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emit infoMessage( i18n("Using %1 %2 - Copyright (C) %3")
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.arg(d->usedTranscodeBin->name())
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.arg(d->usedTranscodeBin->version)
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.arg(d->usedTranscodeBin->copyright), INFO );
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emit newTask( i18n("Analysing Title %1 of Video DVD %2").arg(m_titleNumber).arg(m_dvd.volumeIdentifier()) );
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startTranscode( 1 );
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}
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void K3bVideoDVDTitleDetectClippingJob::startTranscode( int chapter )
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{
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d->currentChapter = chapter;
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d->lastSubProgress = 0;
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//
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// If we have only one chapter and it is not longer than 2 minutes (value guessed based on some test DVD)
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// use the whole chapter
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//
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if( d->totalChapters == 1 )
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d->currentFrames = TQMIN( 3000, TQMAX( 1, m_dvd[m_titleNumber-1][d->currentChapter-1].playbackTime().totalFrames() ) );
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else
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d->currentFrames = TQMIN( 200, TQMAX( 1, m_dvd[m_titleNumber-1][d->currentChapter-1].playbackTime().totalFrames() ) );
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//
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// prepare the process
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//
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delete d->process;
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d->process = new K3bProcess();
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d->process->setSuppressEmptyLines(true);
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d->process->setSplitStdout(true);
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// connect( d->process, TQ_SIGNAL(stderrLine(const TQString&)), this, TQ_SLOT(slotTranscodeStderr(const TQString&)) );
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connect( d->process, TQ_SIGNAL(stdoutLine(const TQString&)), this, TQ_SLOT(slotTranscodeStderr(const TQString&)) );
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connect( d->process, TQ_SIGNAL(processExited(TDEProcess*)), this, TQ_SLOT(slotTranscodeExited(TDEProcess*)) );
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// the executable
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*d->process << d->usedTranscodeBin;
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// low priority
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if( m_lowPriority )
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*d->process << "--nice" << "19";
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// the input
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*d->process << "-i" << m_dvd.device()->blockDeviceName();
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// select the title number and chapter
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*d->process << "-T" << TQString("%1,%2").arg(m_titleNumber).arg(chapter);
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// null output
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*d->process << "-y" << "null,null" << "-o" << "/dev/null";
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// analyze the first 200 frames
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*d->process << "-J" << TQString("detectclipping=range=0-%1/5").arg(d->currentFrames);
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// also only decode the first 200 frames
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*d->process << "-c" << TQString("0-%1").arg(d->currentFrames+1);
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// additional user parameters from config
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const TQStringList& params = d->usedTranscodeBin->userParameters();
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for( TQStringList::const_iterator it = params.begin(); it != params.end(); ++it )
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*d->process << *it;
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// produce some debugging output
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kdDebug() << "***** transcode parameters:\n";
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const TQValueList<TQCString>& args = d->process->args();
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TQString s;
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for( TQValueList<TQCString>::const_iterator it = args.begin(); it != args.end(); ++it ) {
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s += *it + " ";
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}
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kdDebug() << s << flush << endl;
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emit debuggingOutput( d->usedTranscodeBin->name() + " command:", s);
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// start the process
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if( !d->process->start( TDEProcess::NotifyOnExit, TDEProcess::All ) ) {
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// something went wrong when starting the program
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// it "should" be the executable
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emit infoMessage( i18n("Could not start %1.").arg(d->usedTranscodeBin->name()), K3bJob::ERROR );
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jobFinished(false);
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}
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else {
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emit newSubTask( i18n("Analysing Chapter %1 of %2").arg(chapter).arg(m_dvd[m_titleNumber-1].numPTTs()) );
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emit subPercent( 0 );
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}
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}
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void K3bVideoDVDTitleDetectClippingJob::cancel()
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{
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d->canceled = true;
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if( d->process && d->process->isRunning() )
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d->process->kill();
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}
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void K3bVideoDVDTitleDetectClippingJob::slotTranscodeStderr( const TQString& line )
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{
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emit debuggingOutput( "transcode", line );
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// parse progress
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// encoding frame [185], 24.02 fps, 93.0%, ETA: 0:00:00, ( 0| 0| 0)
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if( line.startsWith( "encoding frame" ) ) {
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int pos1 = line.find( '[', 15 );
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int pos2 = line.find( ']', pos1+1 );
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if( pos1 > 0 && pos2 > 0 ) {
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bool ok;
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int encodedFrames = line.mid( pos1+1, pos2-pos1-1 ).toInt( &ok );
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if( ok ) {
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int progress = 100 * encodedFrames / d->currentFrames;
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if( progress > d->lastSubProgress ) {
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d->lastSubProgress = progress;
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emit subPercent( progress );
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}
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double part = 100.0 / (double)d->totalChapters;
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progress = (int)( ( (double)(d->currentChapter-1) * part )
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+ ( (double)progress / (double)d->totalChapters )
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+ 0.5 );
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if( progress > d->lastProgress ) {
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d->lastProgress = progress;
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emit percent( progress );
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}
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}
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}
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}
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// [detectclipping#0] valid area: X: 5..719 Y: 72..507 -> -j 72,6,68,0
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else if( line.startsWith( "[detectclipping" ) ) {
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int pos = line.find( "-j" );
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if( pos > 0 ) {
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TQStringList values = TQStringList::split( ',', line.mid( pos+3 ) );
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m_clippingTop = TQMIN( m_clippingTop, values[0].toInt() );
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m_clippingLeft = TQMIN( m_clippingLeft, values[1].toInt() );
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m_clippingBottom = TQMIN( m_clippingBottom, values[2].toInt() );
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m_clippingRight = TQMIN( m_clippingRight, values[3].toInt() );
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}
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else
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kdDebug() << "(K3bVideoDVDTitleDetectClippingJob) failed to parse line: " << line << endl;
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}
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}
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void K3bVideoDVDTitleDetectClippingJob::slotTranscodeExited( TDEProcess* p )
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{
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switch( p->exitStatus() ) {
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case 0:
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d->currentChapter++;
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if( d->currentChapter > d->totalChapters ) {
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//
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// check if we did set any values at all
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//
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if( m_clippingTop == s_unrealisticHighClippingValue )
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m_clippingTop = m_clippingLeft = m_clippingBottom = m_clippingRight = 0;
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if( d->totalChapters < m_dvd[m_titleNumber-1].numPTTs() )
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emit infoMessage( i18n("Ignoring last chapter due to its short playback time."), INFO );
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jobFinished( true );
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}
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else {
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startTranscode( d->currentChapter );
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}
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break;
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default:
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// FIXME: error handling
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if( d->canceled ) {
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emit canceled();
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}
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else {
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emit infoMessage( i18n("%1 returned an unknown error (code %2).")
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.arg(d->usedTranscodeBin->name()).arg(p->exitStatus()),
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K3bJob::ERROR );
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emit infoMessage( i18n("Please send me an email with the last output."), K3bJob::ERROR );
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}
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jobFinished( false );
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}
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}
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#include "k3bvideodvdtitledetectclippingjob.moc"
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