private Stream GetDataStreamFromCueInfo(AcbCueRecord cue, string fileNameForErrorInfo)
{
if (!cue.IsWaveformIdentified)
{
throw new InvalidOperationException($"File '{fileNameForErrorInfo}' is not identified.");
}
Stream result;
if (cue.IsStreaming)
{
var externalAwb = ExternalAwb;
if (externalAwb == null)
{
throw new InvalidOperationException($"External AWB does not exist for streaming file '{fileNameForErrorInfo}'.");
}
if (!externalAwb.Files.ContainsKey(cue.WaveformId))
{
throw new InvalidOperationException($"Waveform ID {cue.WaveformId} is not found in AWB file {externalAwb.FileName}.");
}
var targetExternalFile = externalAwb.Files[cue.WaveformId];
using (var fs = File.Open(externalAwb.FileName, FileMode.Open, FileAccess.Read, FileShare.Read)) {
result = AcbHelper.ExtractToNewStream(fs, targetExternalFile.FileOffsetAligned, (int)targetExternalFile.FileLength);
}
}
else
{
var internalAwb = InternalAwb;
if (internalAwb == null)
{
throw new InvalidOperationException($"Internal AWB is not found for memory file '{fileNameForErrorInfo}' in '{AcbFileName}'.");
}
if (!internalAwb.Files.ContainsKey(cue.WaveformId))
{
throw new InvalidOperationException($"Waveform ID {cue.WaveformId} is not found in internal AWB in {AcbFileName}.");
}
var targetInternalFile = internalAwb.Files[cue.WaveformId];
result = AcbHelper.ExtractToNewStream(Stream, targetInternalFile.FileOffsetAligned, (int)targetInternalFile.FileLength);
}
return(result);
}
private void InitializeAcbTables()
{
var stream = Stream;
long refItemOffset = 0, refItemSize = 0, refCorrection = 0;
var tables = new Dictionary <string, UtfTable>();
_tables = tables;
var cueTable = GetTable("CueTable");
var waveformTable = GetTable("WaveformTable");
var synthTable = GetTable("SynthTable");
var cues = new AcbCueRecord[cueTable.Rows.Length];
_cues = cues;
for (var i = 0; i < cues.Length; ++i)
{
var cue = new AcbCueRecord();
cue.IsWaveformIdentified = false;
cue.CueId = cueTable.GetFieldValueAsNumber <uint>(i, "CueId").Value;
cue.ReferenceType = cueTable.GetFieldValueAsNumber <byte>(i, "ReferenceType").Value;
cue.ReferenceIndex = cueTable.GetFieldValueAsNumber <ushort>(i, "ReferenceIndex").Value;
cues[i] = cue;
switch (cue.ReferenceType)
{
case 2:
refItemOffset = synthTable.GetFieldOffset(cue.ReferenceIndex, "ReferenceItems").Value;
refItemSize = synthTable.GetFieldSize(cue.ReferenceIndex, "ReferenceItems").Value;
refCorrection = refItemSize + 2;
break;
case 3:
case 8:
if (i == 0)
{
var refItemOffsetNullable = synthTable.GetFieldOffset(0, "ReferenceItems");
if (refItemOffsetNullable == null)
{
throw new AcbFieldMissingException("ReferenceItems");
}
refItemOffset = refItemOffsetNullable.Value;
var refItemSizeNullable = synthTable.GetFieldSize(0, "ReferenceItems");
if (refItemSizeNullable == null)
{
throw new AcbFieldMissingException("ReferenceItems");
}
refItemSize = refItemSizeNullable.Value;
refCorrection = refItemSize - 2;
}
else
{
refCorrection += 4;
}
break;
default:
throw new FormatException($"Unexpected ReferenceType '{cues[i].ReferenceType}' for CueIndex: '{i}.'");
}
if (refItemSize != 0)
{
cue.WaveformIndex = stream.PeekUInt16BE(refItemOffset + refCorrection);
var isStreamingNullable = waveformTable.GetFieldValueAsNumber <byte>(cue.WaveformIndex, "Streaming");
if (isStreamingNullable != null)
{
cue.IsStreaming = isStreamingNullable.Value != 0;
var waveformIdNullable = waveformTable.GetFieldValueAsNumber <ushort>(cue.WaveformIndex, "Id");
if (waveformIdNullable != null)
{
cue.WaveformId = waveformIdNullable.Value;
}
else if (cue.IsStreaming)
{
waveformIdNullable = waveformTable.GetFieldValueAsNumber <ushort>(cue.WaveformIndex, "StreamAwbId");
if (waveformIdNullable == null)
{
throw new AcbFieldMissingException("StreamAwbId");
}
cue.WaveformId = waveformIdNullable.Value;
}
else
{
// MemoryAwbId is for ADX2LE encoder.
waveformIdNullable = waveformTable.GetFieldValueAsNumber <ushort>(cue.WaveformIndex, "MemoryAwbId");
if (waveformIdNullable == null)
{
throw new AcbFieldMissingException("MemoryAwbId");
}
cue.WaveformId = waveformIdNullable.Value;
}
var encTypeNullable = waveformTable.GetFieldValueAsNumber <byte>(cue.WaveformIndex, "EncodeType");
if (encTypeNullable == null)
{
throw new AcbFieldMissingException("EncodeType");
}
cue.EncodeType = encTypeNullable.Value;
cue.IsWaveformIdentified = true;
}
}
}
}
