internal virtual int synth_1to1_mono <T>(
MPGLib.mpstr_tag mp,
float[] bandPtr,
int bandPos,
T[] @out,
MPGLib.ProcessedBytes pnt,
Factory <T> tFactory)
{
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
var samples_tmp = new T[64];
var tmp1 = 0;
int i, ret;
var pnt1 = new MPGLib.ProcessedBytes();
ret = synth_1to1(mp, bandPtr, bandPos, 0, samples_tmp, pnt1, tFactory);
var outPos = pnt.pb;
for (i = 0; i < 32; i++)
{
@out[outPos++] = samples_tmp[tmp1];
tmp1 += 2;
}
pnt.pb += 32;
return(ret);
}
private int lame_decode_fromfile(FileStream fd, short[] pcm_l, short[] pcm_r, MP3Data mp3data)
{
var ret = 0;
var len = 0;
var buf = new byte[1024];
ret = -1;
ret = mpg.hip_decode1_headers(hip, buf, len, pcm_l, pcm_r, mp3data);
if (ret != 0)
{
return(ret);
}
while (true)
{
try
{
len = fd.Read(buf, 0, buf.Length);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
if (len <= 0)
{
ret = mpg.hip_decode1_headers(hip, buf, 0, pcm_l, pcm_r, mp3data);
if (ret <= 0)
{
mpg.hip_decode_exit(hip);
hip = null;
return(-1);
}
break;
}
ret = mpg.hip_decode1_headers(hip, buf, len, pcm_l, pcm_r, mp3data);
if (ret == -1)
{
mpg.hip_decode_exit(hip);
hip = null;
return(-1);
}
if (ret > 0)
{
break;
}
}
return(ret);
}
private int lame_decode_fromfile(Stream fd, short[] pcm_l, short[] pcm_r, MP3Data mp3data, bool seek)
{
var ret = 0;
var len = 0;
var buf = new byte[1024];
ret = -1;
ret = mpg.hip_decode1_headers(hip, buf, len, pcm_l, pcm_r, mp3data, seek);
if (ret != 0)
{
return(ret);
}
while (true)
{
try
{
len = fd.Read(buf, 0, buf.Length);
}
catch (IOException e)
{
return(-1);
}
if (len <= 0)
{
ret = mpg.hip_decode1_headers(hip, buf, 0, pcm_l, pcm_r, mp3data, seek);
if (ret <= 0)
{
mpg.hip_decode_exit(hip);
hip = null;
return(-1);
}
break;
}
ret = mpg.hip_decode1_headers(hip, buf, len, pcm_l, pcm_r, mp3data, seek);
if (ret == -1)
{
mpg.hip_decode_exit(hip);
hip = null;
return(-1);
}
if (ret > 0)
{
break;
}
}
return(ret);
}
private int lame_decode_initfile(Stream fd, MP3Data mp3data, Enc enc)
{
var buf = new byte[100];
var pcm_l = new short[1152];
var pcm_r = new short[1152];
var freeformat = false;
if (hip != null)
{
mpg.hip_decode_exit(hip);
}
hip = mpg.hip_decode_init();
var len = 4;
if (fd.Position + len > fd.Length)
{
return(-1);
}
fd.Read(buf, 0, len);
if (buf[0] == (sbyte)'I' && buf[1] == (sbyte)'D' && buf[2] == (sbyte)'3')
{
len = 6;
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
return(-1);
}
buf[2] &= 127;
buf[3] &= 127;
buf[4] &= 127;
buf[5] &= 127;
len = (((((buf[2] << 7) + buf[3]) << 7) + buf[4]) << 7) + buf[5];
try
{
fd.Seek(len, SeekOrigin.Current);
}
catch (IOException e)
{
return(-1);
}
len = 4;
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
return(-1);
}
}
if (check_aid(buf))
{
try
{
fd.Read(buf, 0, 2);
}
catch (IOException e)
{
return(-1);
}
var aid_header = (buf[0] & 0xff) + 256 * (buf[1] & 0xff);
try
{
fd.Seek(aid_header - 6, SeekOrigin.Current);
}
catch (IOException e)
{
return(-1);
}
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
return(-1);
}
}
len = 4;
while (!is_syncword_mp123(buf))
{
int i;
for (i = 0; i < len - 1; i++)
{
buf[i] = buf[i + 1];
}
try
{
fd.Read(buf, len - 1, 1);
}
catch (IOException e)
{
return(-1);
}
}
if ((buf[2] & 0xf0) == 0)
{
freeformat = true;
}
var ret = mpg.hip_decode1_headersB(hip, buf, len, pcm_l, pcm_r, mp3data, enc, false);
if (-1 == ret)
{
return(-1);
}
while (!mp3data.header_parsed)
{
try
{
fd.Read(buf, 0, buf.Length);
}
catch (IOException e)
{
return(-1);
}
ret = mpg.hip_decode1_headersB(hip, buf, buf.Length, pcm_l, pcm_r, mp3data, enc, false);
if (-1 == ret)
{
return(-1);
}
}
if (mp3data.bitrate == 0 && !freeformat)
{
return(lame_decode_initfile(fd, mp3data, enc));
}
if (mp3data.totalframes > 0)
{
}
else
{
mp3data.nsamp = -1;
}
return(0);
}
private int lame_decode_initfile(FileStream fd, MP3Data mp3data, Enc enc)
{
var buf = new byte[100];
var pcm_l = new short[1152];
var pcm_r = new short[1152];
var freeformat = false;
if (hip != null)
{
mpg.hip_decode_exit(hip);
}
hip = mpg.hip_decode_init();
var len = 4;
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
if (buf[0] == (sbyte)'I' && buf[1] == (sbyte)'D' && buf[2] == (sbyte)'3')
{
if (parse.silent < 10)
{
Console.WriteLine(
"ID3v2 found. " + "Be aware that the ID3 tag is currently lost when transcoding.");
}
len = 6;
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
buf[2] &= 127;
buf[3] &= 127;
buf[4] &= 127;
buf[5] &= 127;
len = (((((buf[2] << 7) + buf[3]) << 7) + buf[4]) << 7) + buf[5];
try
{
fd.Seek(len, SeekOrigin.Current);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
len = 4;
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
}
if (check_aid(buf))
{
try
{
fd.Read(buf, 0, 2);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
var aid_header = (buf[0] & 0xff) + 256 * (buf[1] & 0xff);
if (parse.silent < 10)
{
Console.Write("Album ID found. length={0:D} \n", aid_header);
}
try
{
fd.Seek(aid_header - 6, SeekOrigin.Current);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
try
{
fd.Read(buf, 0, len);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
}
len = 4;
while (!is_syncword_mp123(buf))
{
int i;
for (i = 0; i < len - 1; i++)
{
buf[i] = buf[i + 1];
}
try
{
fd.Read(buf, len - 1, 1);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
}
if ((buf[2] & 0xf0) == 0)
{
if (parse.silent < 10)
{
Console.WriteLine("Input file is freeformat.");
}
freeformat = true;
}
var ret = mpg.hip_decode1_headersB(hip, buf, len, pcm_l, pcm_r, mp3data, enc);
if (-1 == ret)
{
return(-1);
}
while (!mp3data.header_parsed)
{
try
{
fd.Read(buf, 0, 1024);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
Console.Write(e.StackTrace);
return(-1);
}
ret = mpg.hip_decode1_headersB(hip, buf, buf.Length, pcm_l, pcm_r, mp3data, enc);
if (-1 == ret)
{
return(-1);
}
}
if (mp3data.bitrate == 0 && !freeformat)
{
if (parse.silent < 10)
{
Console.Error.WriteLine("fail to sync...");
}
return(lame_decode_initfile(fd, mp3data, enc));
}
if (mp3data.totalframes > 0)
{
}
else
{
mp3data.nsamp = -1;
}
return(0);
}
internal virtual int synth_1to1_unclipped <T>(
MPGLib.mpstr_tag mp,
float[] bandPtr,
int bandPos,
int channel,
T[] @out,
MPGLib.ProcessedBytes pnt,
Factory <T> tFactory)
{
int bo;
var samples = pnt.pb;
float[] b0;
int b0Pos;
float[][] buf;
var clip = 0;
int bo1;
bo = mp.synth_bo;
if (0 == channel)
{
bo--;
bo &= 0xf;
buf = mp.synth_buffs[0];
}
else
{
samples++;
buf = mp.synth_buffs[1];
}
if ((bo & 0x1) != 0)
{
b0 = buf[0];
b0Pos = 0;
bo1 = bo;
dct64.dct64(buf[1], (bo + 1) & 0xf, buf[0], bo, bandPtr, bandPos);
}
else
{
b0 = buf[1];
b0Pos = 0;
bo1 = bo + 1;
dct64.dct64(buf[0], bo, buf[1], bo + 1, bandPtr, bandPos);
}
mp.synth_bo = bo;
{
int j;
var window = 16 - bo1;
for (j = 16; j != 0; j--, b0Pos += 0x10, window += 0x20, samples += step)
{
float sum;
sum = tab.decwin[window + 0x0] * b0[b0Pos + 0x0];
sum -= tab.decwin[window + 0x1] * b0[b0Pos + 0x1];
sum += tab.decwin[window + 0x2] * b0[b0Pos + 0x2];
sum -= tab.decwin[window + 0x3] * b0[b0Pos + 0x3];
sum += tab.decwin[window + 0x4] * b0[b0Pos + 0x4];
sum -= tab.decwin[window + 0x5] * b0[b0Pos + 0x5];
sum += tab.decwin[window + 0x6] * b0[b0Pos + 0x6];
sum -= tab.decwin[window + 0x7] * b0[b0Pos + 0x7];
sum += tab.decwin[window + 0x8] * b0[b0Pos + 0x8];
sum -= tab.decwin[window + 0x9] * b0[b0Pos + 0x9];
sum += tab.decwin[window + 0xA] * b0[b0Pos + 0xA];
sum -= tab.decwin[window + 0xB] * b0[b0Pos + 0xB];
sum += tab.decwin[window + 0xC] * b0[b0Pos + 0xC];
sum -= tab.decwin[window + 0xD] * b0[b0Pos + 0xD];
sum += tab.decwin[window + 0xE] * b0[b0Pos + 0xE];
sum -= tab.decwin[window + 0xF] * b0[b0Pos + 0xF];
WRITE_SAMPLE_UNCLIPPED(samples, sum, clip, @out, tFactory);
}
{
float sum;
sum = tab.decwin[window + 0x0] * b0[b0Pos + 0x0];
sum += tab.decwin[window + 0x2] * b0[b0Pos + 0x2];
sum += tab.decwin[window + 0x4] * b0[b0Pos + 0x4];
sum += tab.decwin[window + 0x6] * b0[b0Pos + 0x6];
sum += tab.decwin[window + 0x8] * b0[b0Pos + 0x8];
sum += tab.decwin[window + 0xA] * b0[b0Pos + 0xA];
sum += tab.decwin[window + 0xC] * b0[b0Pos + 0xC];
sum += tab.decwin[window + 0xE] * b0[b0Pos + 0xE];
WRITE_SAMPLE_UNCLIPPED(samples, sum, clip, @out, tFactory);
b0Pos -= 0x10;
window -= 0x20;
samples += step;
}
window += bo1 << 1;
for (j = 15; j != 0; j--, b0Pos -= 0x10, window -= 0x20, samples += step)
{
float sum;
sum = -tab.decwin[window + -0x1] * b0[b0Pos + 0x0];
sum -= tab.decwin[window + -0x2] * b0[b0Pos + 0x1];
sum -= tab.decwin[window + -0x3] * b0[b0Pos + 0x2];
sum -= tab.decwin[window + -0x4] * b0[b0Pos + 0x3];
sum -= tab.decwin[window + -0x5] * b0[b0Pos + 0x4];
sum -= tab.decwin[window + -0x6] * b0[b0Pos + 0x5];
sum -= tab.decwin[window + -0x7] * b0[b0Pos + 0x6];
sum -= tab.decwin[window + -0x8] * b0[b0Pos + 0x7];
sum -= tab.decwin[window + -0x9] * b0[b0Pos + 0x8];
sum -= tab.decwin[window + -0xA] * b0[b0Pos + 0x9];
sum -= tab.decwin[window + -0xB] * b0[b0Pos + 0xA];
sum -= tab.decwin[window + -0xC] * b0[b0Pos + 0xB];
sum -= tab.decwin[window + -0xD] * b0[b0Pos + 0xC];
sum -= tab.decwin[window + -0xE] * b0[b0Pos + 0xD];
sum -= tab.decwin[window + -0xF] * b0[b0Pos + 0xE];
sum -= tab.decwin[window + -0x0] * b0[b0Pos + 0xF];
WRITE_SAMPLE_UNCLIPPED(samples, sum, clip, @out, tFactory);
}
}
pnt.pb += 64;
return(clip);
}
