SampleBuffer::SampleBuffer (int frames, int channels, int samplerate) :
m_data(0),
m_frames(frames),
m_channels(channels),
m_samplerate(samplerate)
{
Q_ASSERT(channels > 0);
if (frames > 0) {
m_data = new sample_t[totalFrames()];
std::memset(m_data, 0x00, totalFrames()*sizeof(sample_t));
}
}
void Player::onAnimationChanged(WeightedAnimation *animation)
{
setButtonsEnabled(animation!=0);
int oldPlayFrame = playFrame();
//When first overall animation emerges, stretch looping to max
if(/*DEBUG. Uncomment when LoopIn/Out set by some form. this->animation==0 &&*/ animation!=NULL)
loopOut = animation->getNumberOfFrames()-1;
//edu: this is insidous! Disconnects ALL slots tied to that object.
// DO NOT USE THAT! disconnect(animation, SIGNAL(currentFrame(int)), 0, 0);
this->animation = animation;
if(animation)
{
connect(animation, SIGNAL(currentFrame(int)), this, SLOT(animationFrameChanged()));
int framesCount = animation->getNumberOfFrames();
if(framesCount<loopIn)
loopIn=0;
if(framesCount<loopOut)
loopOut=framesCount-1; //last animation's frame
if(oldPlayFrame<=totalFrames())
setPlaybackFrame(oldPlayFrame);
}
else
void SamplePlayHandle::play( sampleFrame * buffer )
{
const fpp_t fpp = Engine::mixer()->framesPerPeriod();
//play( 0, _try_parallelizing );
if( framesDone() >= totalFrames() )
{
memset( buffer, 0, sizeof( sampleFrame ) * fpp );
return;
}
sampleFrame * workingBuffer = buffer;
f_cnt_t frames = fpp;
// apply offset for the first period
if( framesDone() == 0 )
{
memset( buffer, 0, sizeof( sampleFrame ) * offset() );
workingBuffer += offset();
frames -= offset();
}
if( !( m_track && m_track->isMuted() )
&& !( m_bbTrack && m_bbTrack->isMuted() ) )
{
/* stereoVolumeVector v =
{ { m_volumeModel->value() / DefaultVolume,
m_volumeModel->value() / DefaultVolume } };*/
if( ! m_sampleBuffer->play( workingBuffer, &m_state, frames,
BaseFreq ) )
{
memset( workingBuffer, 0, frames * sizeof( sampleFrame ) );
}
}
m_frame += frames;
}
bool SamplePlayHandle::isFinished() const
{
return framesDone() >= totalFrames() && m_doneMayReturnTrue == true;
}
void Animation::setCurrentFrame(int currentFrame)
{
m_currentFrame = qMax(qMin(currentFrame, totalFrames()-1), 0);
}
int K3b::Msf::lba() const
{
return totalFrames();
}
