/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
Allocation = stream.GetBitsFromBuffer(4);
if (Allocation > 14)
{
return;
}
Channel2Allocation = stream.GetBitsFromBuffer(4);
if (Channel2Allocation > 14)
{
return;
}
if (crc != null)
{
crc.AddBits(Allocation, 4);
crc.AddBits(Channel2Allocation, 4);
}
if (Allocation != 0)
{
Samplelength = Allocation + 1;
Factor = TableFactor[Allocation];
Offset = TableOffset[Allocation];
}
if (Channel2Allocation != 0)
{
Channel2Samplelength = Channel2Allocation + 1;
Channel2Factor = TableFactor[Channel2Allocation];
Channel2Offset = TableOffset[Channel2Allocation];
}
}
/// <summary>
/// *
/// </summary>
public override void read_allocation(Bitstream stream, Header header, Crc16 crc)
{
allocation = stream.GetBitsFromBuffer(4);
channel2_allocation = stream.GetBitsFromBuffer(4);
if (crc != null)
{
crc.add_bits(allocation, 4);
crc.add_bits(channel2_allocation, 4);
}
if (allocation != 0)
{
samplelength = allocation + 1;
factor = TableFactor[allocation];
offset = TableOffset[allocation];
}
if (channel2_allocation != 0)
{
channel2_samplelength = channel2_allocation + 1;
channel2_factor = TableFactor[channel2_allocation];
channel2_offset = TableOffset[channel2_allocation];
}
}
/// <summary>
/// *
/// </summary>
public override void read_scalefactor(Bitstream stream, Header header)
{
if (allocation != 0)
scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
if (channel2_allocation != 0)
channel2_scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
}
/// <summary>
/// *
/// </summary>
public override void read_scalefactor(Bitstream stream, Header header)
{
if (allocation != 0)
{
scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadScaleFactor(Bitstream stream, Header header)
{
if (Allocation != 0)
{
Scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
}
}
/// <summary>
/// *
/// </summary>
public override void ReadBitAllocation(Bitstream stream, Header header, Crc16 crc)
{
int length = get_allocationlength(header);
allocation = stream.GetBitsFromBuffer(length);
channel2_allocation = stream.GetBitsFromBuffer(length);
if (crc != null)
{
crc.add_bits(allocation, length);
crc.add_bits(channel2_allocation, length);
}
}
/// <summary>
/// *
/// </summary>
public override void ReadBitAllocation(Bitstream stream, Header header, Crc16 crc)
{
int length = get_allocationlength(header);
allocation = stream.GetBitsFromBuffer(length);
channel2_allocation = stream.GetBitsFromBuffer(length);
if (crc != null)
{
crc.add_bits(allocation, length);
crc.add_bits(channel2_allocation, length);
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
int length = GetAllocationLength(header);
Allocation = stream.GetBitsFromBuffer(length);
Channel2Allocation = stream.GetBitsFromBuffer(length);
if (crc != null)
{
crc.AddBits(Allocation, length);
crc.AddBits(Channel2Allocation, length);
}
}
/// <summary>
/// *
/// </summary>
public override void read_scalefactor_selection(Bitstream stream, Crc16 crc)
{
if (allocation != 0)
{
scfsi = stream.GetBitsFromBuffer(2);
channel2_scfsi = stream.GetBitsFromBuffer(2);
if (crc != null)
{
crc.add_bits(scfsi, 2);
crc.add_bits(channel2_scfsi, 2);
}
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadScaleFactorSelection(Bitstream stream, Crc16 crc)
{
if (Allocation != 0)
{
Scfsi = stream.GetBitsFromBuffer(2);
Channel2Scfsi = stream.GetBitsFromBuffer(2);
if (crc != null)
{
crc.AddBits(Scfsi, 2);
crc.AddBits(Channel2Scfsi, 2);
}
}
}
/// <summary>
/// *
/// </summary>
public override void read_scalefactor_selection(Bitstream stream, Crc16 crc)
{
if (allocation != 0)
{
scfsi = stream.GetBitsFromBuffer(2);
channel2_scfsi = stream.GetBitsFromBuffer(2);
if (crc != null)
{
crc.add_bits(scfsi, 2);
crc.add_bits(channel2_scfsi, 2);
}
}
}
/// <summary>
/// *
/// </summary>
public override bool read_sampledata(Bitstream stream)
{
bool returnvalue = base.read_sampledata(stream);
if (channel2_allocation != 0)
{
if (groupingtable[1] != null)
{
int samplecode = stream.GetBitsFromBuffer(channel2_codelength[0]);
// create requantized samples:
samplecode += samplecode << 1;
/*
* float[] target = channel2_samples;
* float[] source = channel2_groupingtable[0];
* int tmp = 0;
* int temp = 0;
* target[tmp++] = source[samplecode + temp];
* temp++;
* target[tmp++] = source[samplecode + temp];
* temp++;
* target[tmp] = source[samplecode + temp];
* // memcpy (channel2_samples, channel2_groupingtable + samplecode, 3 * sizeof (real));
*/
float[] target = channel2_samples;
float[] source = groupingtable[1];
int tmp = 0;
int temp = samplecode;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
}
else
{
channel2_samples[0] =
(float)(stream.GetBitsFromBuffer(channel2_codelength[0]) * channel2_factor[0] - 1.0);
channel2_samples[1] =
(float)(stream.GetBitsFromBuffer(channel2_codelength[0]) * channel2_factor[0] - 1.0);
channel2_samples[2] =
(float)(stream.GetBitsFromBuffer(channel2_codelength[0]) * channel2_factor[0] - 1.0);
}
}
return(returnvalue);
}
/// <summary>
/// *
/// </summary>
public override void ReadScaleFactor(Bitstream stream, Header header)
{
base.ReadScaleFactor(stream, header);
if (channel2_allocation != 0)
{
switch (channel2_scfsi)
{
case 0:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
channel2_scalefactor1 = channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
channel2_scalefactor1 =
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
prepare_sample_reading(header, channel2_allocation, 1, channel2_factor, channel2_codelength,
channel2_c, channel2_d);
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadScaleFactor(Bitstream stream, Header header)
{
if (Allocation != 0)
{
base.ReadScaleFactor(stream, header);
switch (Channel2Scfsi)
{
case 0:
Channel2Scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
Channel2Scalefactor1 = Channel2Scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
Channel2Scalefactor1 =
Channel2Scalefactor2 = Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
Channel2Scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor2 = Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
}
}
/// <summary>
/// *
/// </summary>
internal override void ReadScaleFactor(Bitstream stream, Header header)
{
base.ReadScaleFactor(stream, header);
if (Channel2Allocation != 0)
{
switch (Channel2Scfsi)
{
case 0:
Channel2Scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
Channel2Scalefactor1 = Channel2Scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
Channel2Scalefactor1 =
Channel2Scalefactor2 = Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
Channel2Scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
Channel2Scalefactor2 = Channel2Scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
PrepareForSampleRead(header, Channel2Allocation, 1, Channel2Factor, Channel2Codelength,
Channel2C, Channel2D);
}
}
/// <summary>
/// *
/// </summary>
public override void read_scalefactor(Bitstream stream, Header header)
{
if (allocation != 0)
{
base.read_scalefactor(stream, header);
switch (channel2_scfsi)
{
case 0:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
channel2_scalefactor1 = channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
channel2_scalefactor1 =
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
}
}
/// <summary>
/// *
/// </summary>
public override bool read_sampledata(Bitstream stream)
{
bool returnvalue = base.read_sampledata(stream);
if (channel2_allocation != 0)
{
channel2_sample = stream.GetBitsFromBuffer(channel2_samplelength);
}
return (returnvalue);
}
/// <summary>
/// *
/// </summary>
public override bool ReadSampleData(Bitstream stream)
{
bool returnvalue = base.ReadSampleData(stream);
if (channel2_allocation != 0)
{
channel2_sample = stream.GetBitsFromBuffer(channel2_samplelength);
}
return(returnvalue);
}
/// <summary>
/// *
/// </summary>
internal override bool ReadSampleData(Bitstream stream)
{
bool returnvalue = base.ReadSampleData(stream);
if (Channel2Allocation != 0)
{
Channel2Sample = stream.GetBitsFromBuffer(Channel2Samplelength);
}
return(returnvalue);
}
/// <summary>
/// *
/// </summary>
public override void ReadScaleFactor(Bitstream stream, Header header)
{
if (allocation != 0)
{
base.ReadScaleFactor(stream, header);
switch (channel2_scfsi)
{
case 0:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
channel2_scalefactor1 = channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
channel2_scalefactor1 =
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
}
}
/// <summary>
/// *
/// </summary>
public override void read_allocation(Bitstream stream, Header header, Crc16 crc)
{
allocation = stream.GetBitsFromBuffer(4);
channel2_allocation = stream.GetBitsFromBuffer(4);
if (crc != null)
{
crc.add_bits(allocation, 4);
crc.add_bits(channel2_allocation, 4);
}
if (allocation != 0)
{
samplelength = allocation + 1;
factor = TableFactor[allocation];
offset = TableOffset[allocation];
}
if (channel2_allocation != 0)
{
channel2_samplelength = channel2_allocation + 1;
channel2_factor = TableFactor[channel2_allocation];
channel2_offset = TableOffset[channel2_allocation];
}
}
/// <summary>
/// *
/// </summary>
internal override bool ReadSampleData(Bitstream stream)
{
if (Allocation != 0)
{
Sample = stream.GetBitsFromBuffer(Samplelength);
}
if (++Samplenumber == 12)
{
Samplenumber = 0;
return(true);
}
return(false);
}
/// <summary>
/// *
/// </summary>
public override bool read_sampledata(Bitstream stream)
{
if (allocation != 0)
{
sample = stream.GetBitsFromBuffer(samplelength);
}
if (++samplenumber == 12)
{
samplenumber = 0;
return(true);
}
return(false);
}
/// <summary>
/// *
/// </summary>
internal override void ReadAllocation(Bitstream stream, Header header, Crc16 crc)
{
if ((Allocation = stream.GetBitsFromBuffer(4)) == 15)
{
}
// cerr << "WARNING: stream contains an illegal allocation!\n";
// MPEG-stream is corrupted!
crc?.AddBits(Allocation, 4);
if (Allocation != 0)
{
Samplelength = Allocation + 1;
Factor = TableFactor[Allocation];
Offset = TableOffset[Allocation];
}
}
/// <summary>
/// *
/// </summary>
public override void read_allocation(Bitstream stream, Header header, Crc16 crc)
{
if ((allocation = stream.GetBitsFromBuffer(4)) == 15)
{
}
// cerr << "WARNING: stream contains an illegal allocation!\n";
// MPEG-stream is corrupted!
if (crc != null)
crc.add_bits(allocation, 4);
if (allocation != 0)
{
samplelength = allocation + 1;
factor = TableFactor[allocation];
offset = TableOffset[allocation];
}
}
/// <summary>
/// *
/// </summary>
public override void read_allocation(Bitstream stream, Header header, Crc16 crc)
{
if ((allocation = stream.GetBitsFromBuffer(4)) == 15)
{
}
// cerr << "WARNING: stream contains an illegal allocation!\n";
// MPEG-stream is corrupted!
if (crc != null)
{
crc.add_bits(allocation, 4);
}
if (allocation != 0)
{
samplelength = allocation + 1;
factor = TableFactor[allocation];
offset = TableOffset[allocation];
}
}
/// <summary>
/// *
/// </summary>
public virtual void read_scalefactor_selection(Bitstream stream, Crc16 crc)
{
if (allocation != 0)
{
scfsi = stream.GetBitsFromBuffer(2);
if (crc != null)
crc.add_bits(scfsi, 2);
}
}
/// <summary>
/// *
/// </summary>
public override bool read_sampledata(Bitstream stream)
{
if (allocation != 0)
{
sample = stream.GetBitsFromBuffer(samplelength);
}
if (++samplenumber == 12)
{
samplenumber = 0;
return true;
}
return false;
}
/// <summary>
/// *
/// </summary>
public override void ReadScaleFactor(Bitstream stream, Header header)
{
base.ReadScaleFactor(stream, header);
if (channel2_allocation != 0)
{
switch (channel2_scfsi)
{
case 0:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
channel2_scalefactor1 = channel2_scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
channel2_scalefactor1 =
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
channel2_scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
channel2_scalefactor2 = channel2_scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
prepare_sample_reading(header, channel2_allocation, 1, channel2_factor, channel2_codelength,
channel2_c, channel2_d);
}
}
/// <summary>
/// *
/// </summary>
public override bool ReadSampleData(Bitstream stream)
{
bool returnvalue = base.ReadSampleData(stream);
if (channel2_allocation != 0)
if (groupingtable[1] != null)
{
int samplecode = stream.GetBitsFromBuffer(channel2_codelength[0]);
// create requantized samples:
samplecode += samplecode << 1;
/*
float[] target = channel2_samples;
float[] source = channel2_groupingtable[0];
int tmp = 0;
int temp = 0;
target[tmp++] = source[samplecode + temp];
temp++;
target[tmp++] = source[samplecode + temp];
temp++;
target[tmp] = source[samplecode + temp];
// memcpy (channel2_samples, channel2_groupingtable + samplecode, 3 * sizeof (real));
*/
float[] target = channel2_samples;
float[] source = groupingtable[1];
int tmp = 0;
int temp = samplecode;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
}
else
{
channel2_samples[0] =
(float)((stream.GetBitsFromBuffer(channel2_codelength[0])) * channel2_factor[0] - 1.0);
channel2_samples[1] =
(float)((stream.GetBitsFromBuffer(channel2_codelength[0])) * channel2_factor[0] - 1.0);
channel2_samples[2] =
(float)((stream.GetBitsFromBuffer(channel2_codelength[0])) * channel2_factor[0] - 1.0);
}
return returnvalue;
}
/// <summary>
/// *
/// </summary>
public override void ReadScaleFactor(Bitstream stream, Header header)
{
if (allocation != 0)
{
switch (scfsi)
{
case 0:
scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 1:
scalefactor1 = scalefactor2 = ScaleFactors[stream.GetBitsFromBuffer(6)];
scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 2:
scalefactor1 = scalefactor2 = scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
case 3:
scalefactor1 = ScaleFactors[stream.GetBitsFromBuffer(6)];
scalefactor2 = scalefactor3 = ScaleFactors[stream.GetBitsFromBuffer(6)];
break;
}
prepare_sample_reading(header, allocation, 0, factor, codelength, c, d);
}
}
/// <summary>
/// *
/// </summary>
public override bool ReadSampleData(Bitstream stream)
{
if (allocation != 0)
if (groupingtable[0] != null)
{
int samplecode = stream.GetBitsFromBuffer(codelength[0]);
// create requantized samples:
samplecode += samplecode << 1;
float[] target = samples;
float[] source = groupingtable[0];
/*
int tmp = 0;
int temp = 0;
target[tmp++] = source[samplecode + temp];
temp++;
target[tmp++] = source[samplecode + temp];
temp++;
target[tmp] = source[samplecode + temp];
*/
//Bugfix:
int tmp = 0;
int temp = samplecode;
if (temp > source.Length - 3)
temp = source.Length - 3;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
temp++;
tmp++;
target[tmp] = source[temp];
// memcpy (samples, groupingtable + samplecode, 3 * sizeof (real));
}
else
{
samples[0] = (float)((stream.GetBitsFromBuffer(codelength[0])) * factor[0] - 1.0);
samples[1] = (float)((stream.GetBitsFromBuffer(codelength[0])) * factor[0] - 1.0);
samples[2] = (float)((stream.GetBitsFromBuffer(codelength[0])) * factor[0] - 1.0);
}
samplenumber = 0;
if (++groupnumber == 12)
return true;
return false;
}
/// <summary>
/// *
/// </summary>
public override void ReadScaleFactor(Bitstream stream, Header header)
{
if (allocation != 0)
scalefactor = ScaleFactors[stream.GetBitsFromBuffer(6)];
}
