soundclip.cpp

/*
 
Pencil2D - Traditional Animation Software
Copyright (C) 2005-2007 Patrick Corrieri & Pascal Naidon
Copyright (C) 2012-2020 Matthew Chiawen Chang
 
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; version 2 of the License.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
*/
 
#include "soundclip.h"
 
#include <QFile>
#include <QMediaPlayer>
#include <QtMath>
#include "soundplayer.h"
 
SoundClip::SoundClip()
{
}
 
SoundClip::SoundClip(const SoundClip& s2) : KeyFrame(s2)
{
    mOriginalSoundClipName = s2.mOriginalSoundClipName;
}
 
SoundClip::~SoundClip()
{
    //QFile::remove( fileName() );
}
 
SoundClip& SoundClip::operator=(const SoundClip& a)
{
    if (this == &a)
    {
        return *this; // a self-assignment
    }
 
    KeyFrame::operator=(a);
    mOriginalSoundClipName = a.mOriginalSoundClipName;
    return *this;
}
 
SoundClip* SoundClip::clone() const
{
    // Question: need to copy the file?
    // The audio files are not allowed to be edited in Pencil2D, it should be file for now.
    return new SoundClip(*this);
}
 
Status SoundClip::init(const QString& strSoundFile)
{
    if (strSoundFile.isEmpty())
    {
        return Status::FAIL;
    }
    setFileName(strSoundFile);
    return Status::OK;
}
 
bool SoundClip::isValid() const
{
    if (fileName().isEmpty())
    {
        return false;
    }
 
    if (!mPlayer)
    {
        return false;
    }
 
    return true;
}
 
void SoundClip::attachPlayer(SoundPlayer* player)
{
    Q_ASSERT( player != nullptr );
    mPlayer.reset(player);
}
 
void SoundClip::detachPlayer()
{
    mPlayer.reset();
}
 
void SoundClip::play()
{
    if (mPlayer)
    {
        mPlayer->play();
    }
}
 
void SoundClip::playFromPosition(int frameNumber, int fps)
{
    int framesIntoSound = frameNumber;
    if (pos() > 1)
    {
        framesIntoSound = frameNumber - pos();
    }
    qreal msPerFrame = 1000.0 / fps;
    qint64 msIntoSound = qRound(framesIntoSound * msPerFrame);
    if (mPlayer)
    {
        mPlayer->setMediaPlayerPosition(msIntoSound);
        mPlayer->play();
    }
}
 
void SoundClip::pause()
{
    if (mPlayer)
    {
        mPlayer->pause();
    }
}
 
void SoundClip::stop()
{
    if (mPlayer)
    {
        mPlayer->stop();
    }
}
 
int64_t SoundClip::duration() const
{
    return mDuration;
}
 
void SoundClip::setDuration(const int64_t& duration)
{
    mDuration = duration;
}
 
void SoundClip::updateLength(int fps)
{
    setLength(qCeil(mDuration * fps / 1000.0));
}