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CUETools.Codecs.ALAC: split classes into separate files.

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This commit is contained in:
karamanolev
2011-10-24 15:55:31 +00:00
parent 5c3afc77be
commit c7fc187b35
13 changed files with 267 additions and 240 deletions
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67
CUETools.Codecs.ALAC/ALACFrame.cs Normal file
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namespace CUETools.Codecs.ALAC
{
unsafe class ALACFrame
{
public FrameType type;
public int blocksize;
public int interlacing_shift, interlacing_leftweight;
public ALACSubframeInfo[] subframes;
public ALACSubframe current;
public float* window_buffer;
public ALACFrame(int subframes_count)
{
subframes = new ALACSubframeInfo[subframes_count];
for (int ch = 0; ch < subframes_count; ch++)
subframes[ch] = new ALACSubframeInfo();
current = new ALACSubframe();
}
public void InitSize(int bs)
{
blocksize = bs;
type = FrameType.Verbatim;
interlacing_shift = interlacing_leftweight = 0;
}
public void ChooseBestSubframe(int ch)
{
if (current.size >= subframes[ch].best.size)
return;
ALACSubframe tmp = subframes[ch].best;
subframes[ch].best = current;
current = tmp;
}
public void SwapSubframes(int ch1, int ch2)
{
ALACSubframeInfo tmp = subframes[ch1];
subframes[ch1] = subframes[ch2];
subframes[ch2] = tmp;
}
/// <summary>
/// Swap subframes according to channel mode.
/// It is assumed that we have 4 subframes,
/// 0 is right, 1 is left, 2 is middle, 3 is difference
/// </summary>
public void ChooseSubframes()
{
if (interlacing_leftweight != 0)
{
SwapSubframes(1, 3);
switch (interlacing_shift)
{
case 0: // leftside
break;
case 1: // midside
SwapSubframes(0, 2);
break;
case 31: // rightside
SwapSubframes(0, 4);
break;
}
}
}
}
}