public void Flush()
{
if (mixbuff != null)
{
if (mixbuff.source[iSource].Length < mixbuff.source[iSource].Size)
{
AudioSamples.MemSet(mixbuff.source[iSource].Bytes, 0, mixbuff.source[iSource].Length * Settings.PCM.BlockAlign, (mixbuff.source[iSource].Size - mixbuff.source[iSource].Length) * Settings.PCM.BlockAlign);
}
mixer.UnlockEmptyBuffer(mixbuff, iSource, volume);
mixbuff = null;
}
}
unsafe void restore_samples(FlacFrame frame)
{
for (int ch = 0; ch < PCM.ChannelCount; ch++)
{
switch (frame.subframes[ch].best.type)
{
case SubframeType.Constant:
AudioSamples.MemSet(frame.subframes[ch].samples, frame.subframes[ch].best.residual[0], frame.blocksize);
break;
case SubframeType.Verbatim:
AudioSamples.MemCpy(frame.subframes[ch].samples, frame.subframes[ch].best.residual, frame.blocksize);
break;
case SubframeType.Fixed:
restore_samples_fixed(frame, ch);
break;
case SubframeType.LPC:
restore_samples_lpc(frame, ch);
break;
}
if (frame.subframes[ch].wbits != 0)
{
int *s = frame.subframes[ch].samples;
int x = (int)frame.subframes[ch].wbits;
for (int i = frame.blocksize; i > 0; i--)
{
*(s++) <<= x;
}
}
}
if (frame.ch_mode != ChannelMode.NotStereo)
{
int *l = frame.subframes[0].samples;
int *r = frame.subframes[1].samples;
switch (frame.ch_mode)
{
case ChannelMode.LeftRight:
break;
case ChannelMode.MidSide:
for (int i = frame.blocksize; i > 0; i--)
{
int mid = *l;
int side = *r;
mid <<= 1;
mid |= (side & 1); /* i.e. if 'side' is odd... */
*(l++) = (mid + side) >> 1;
*(r++) = (mid - side) >> 1;
}
break;
case ChannelMode.LeftSide:
for (int i = frame.blocksize; i > 0; i--)
{
int _l = *(l++), _r = *r;
*(r++) = _l - _r;
}
break;
case ChannelMode.RightSide:
for (int i = frame.blocksize; i > 0; i--)
{
*(l++) += *(r++);
}
break;
}
}
}
