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2.0.2

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This commit is contained in:
chudov
2009-05-01 15:16:26 +00:00
parent 599c1b2766
commit ade94128bb
59 changed files with 8117 additions and 4534 deletions
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84
CUETools.Codecs.ALAC/ALACDotNet.cs
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@@ -47,30 +47,35 @@ namespace CUETools.Codecs.ALAC
return AudioSamples.Read(this, buff);
}
private void InitTables()
{
if (_predicterror_buffer_a != null)
return;
setinfo_max_samples_per_frame = read_uint32(_codecData, 24);
byte setinfo_7a = read_uint8(_codecData, 28);
byte setinfo_sample_size = read_uint8(_codecData, 29);
setinfo_rice_historymult = read_uint8(_codecData, 30);
setinfo_rice_initialhistory = read_uint8(_codecData, 31);
setinfo_rice_kmodifier = read_uint8(_codecData, 32);
byte setinfo_7f = read_uint8(_codecData, 33);
ushort setinfo_80 = read_uint16(_codecData, 34);
uint setinfo_82 = read_uint32(_codecData, 36); // maxframesize
uint setinfo_86 = read_uint32(_codecData, 40); // bitrate
uint setinfo_8a_rate = read_uint32(_codecData, 44); // samplerate
_predicterror_buffer_a = new int[setinfo_max_samples_per_frame];
_predicterror_buffer_b = new int[setinfo_max_samples_per_frame];
_outputsamples_buffer_a = new int[setinfo_max_samples_per_frame];
_outputsamples_buffer_b = new int[setinfo_max_samples_per_frame];
_samplesInBuffer = 0;
_framesBuffer = new byte[65536];
}
public uint Read(int[,] buff, uint sampleCount)
{
if (_predicterror_buffer_a == null)
{
setinfo_max_samples_per_frame = read_uint32(_codecData, 24);
byte setinfo_7a = read_uint8(_codecData, 28);
byte setinfo_sample_size = read_uint8(_codecData, 29);
setinfo_rice_historymult = read_uint8(_codecData, 30);
setinfo_rice_initialhistory = read_uint8(_codecData, 31);
setinfo_rice_kmodifier = read_uint8(_codecData, 32);
byte setinfo_7f = read_uint8(_codecData, 33);
ushort setinfo_80 = read_uint16(_codecData, 34);
uint setinfo_82 = read_uint32(_codecData, 36); // maxframesize
uint setinfo_86 = read_uint32(_codecData, 40); // bitrate
uint setinfo_8a_rate = read_uint32(_codecData, 44); // samplerate
_predicterror_buffer_a = new int[setinfo_max_samples_per_frame];
_predicterror_buffer_b = new int[setinfo_max_samples_per_frame];
_outputsamples_buffer_a = new int[setinfo_max_samples_per_frame];
_outputsamples_buffer_b = new int[setinfo_max_samples_per_frame];
_samplesInBuffer = 0;
_framesBuffer = new byte[65536];
}
InitTables();
uint offset = 0;
@@ -78,7 +83,7 @@ namespace CUETools.Codecs.ALAC
{
if (_samplesInBuffer > 0)
{
deinterlace(buff, offset);
deinterlace(buff, offset, _samplesInBuffer);
sampleCount -= (uint) _samplesInBuffer;
offset += _samplesInBuffer;
_samplesInBuffer = 0;
@@ -99,7 +104,7 @@ namespace CUETools.Codecs.ALAC
_iSample++;
}
deinterlace(buff, offset);
deinterlace(buff, offset, sampleCount);
_samplesInBuffer -= sampleCount;
_samplesBufferOffset += sampleCount;
if (_samplesInBuffer == 0)
@@ -232,6 +237,29 @@ namespace CUETools.Codecs.ALAC
uint duration_cur_index = 0;
for (duration_cur_index = 0; duration_cur_index < _time_to_sample_count.Length; duration_cur_index++)
_sampleCount += _time_to_sample_count[duration_cur_index] * _time_to_sample_duration[duration_cur_index];
// try a work around for ffdshow-generated buggy files
if (_time_to_sample_count.Length == 1 && _IO.CanSeek)
{
uint sample_count_0 = _time_to_sample_count[0] - 1;
uint sample_duration_0 = _time_to_sample_duration[0];
Position = sample_count_0 * sample_duration_0;
uint sampleDuration;
uint sampleSize;
if ((int)_iSample < _sample_byte_size.Length)
{
get_sample_info(_iSample, out sampleDuration, out sampleSize);
InitTables();
_IO.Read(_framesBuffer, 0, (int)sampleSize);
decodeFrame(sampleDuration, sampleSize);
if (_samplesInBuffer < sampleDuration)
{
_time_to_sample_duration = new uint[2] { sample_duration_0, _samplesInBuffer };
_time_to_sample_count = new uint[2] { sample_count_0, 1 };
_sampleCount -= sampleDuration - _samplesInBuffer;
}
}
Position = 0;
}
}
private byte [] stream_read_bytes(int len)
@@ -609,9 +637,9 @@ namespace CUETools.Codecs.ALAC
}
}
private unsafe void deinterlace(int [,] samplesBuffer, uint offset)
private unsafe void deinterlace(int[,] samplesBuffer, uint offset, uint sampleCount)
{
if (_samplesInBuffer <= 0)
if (sampleCount <= 0 || sampleCount > _samplesInBuffer)
return;
int i;
@@ -621,7 +649,7 @@ namespace CUETools.Codecs.ALAC
/* weighted interlacing */
if (_interlacing_leftweight != 0)
{
for (i = 0; i < _samplesInBuffer; i++)
for (i = 0; i < sampleCount; i++)
{
int midright = buf_a[i];
int diff = buf_b[i];
@@ -642,7 +670,7 @@ namespace CUETools.Codecs.ALAC
}
/* otherwise basic interlacing took place */
for (i = 0; i < _samplesInBuffer; i++)
for (i = 0; i < sampleCount; i++)
{
int a = buf_a[i];
int b = buf_b[i];