/// <summary>
/// ReadMetaInfo
/// </summary>
/// <param name="br"></param>
/// <param name="sampleStreamType"></param>
/// <param name="inTotalSize"></param>
private void ReadMetaInfo(BinaryReader br, uint sampleStreamType, int inTotalSize)
{
if (sampleStreamType == QBox.QBOX_SAMPLE_TYPE_H264)
{
if (v != null)
throw new Exception("ReadMetaInfo: QBoxMetaV v already set");
v = new QBoxMetaV();
mSampleHeaderSize = v.Read(br);
if ((inTotalSize - mSampleHeaderSize) != 0)
throw new Exception("QBoxSample.Read: Video size incorrect.");
}
else if ((sampleStreamType == QBox.QBOX_SAMPLE_TYPE_QMA) || (sampleStreamType == QBox.QBOX_SAMPLE_TYPE_AAC))
{
if (a != null)
throw new Exception("There should only be one QBoxMetaA for audio");
a = new QBoxMetaA();
mSampleHeaderSize = a.Read(br);
if ((inTotalSize - mSampleHeaderSize) != 0)
throw new Exception("QBoxSample.Read: Audio size incorrect.");
}
else throw new Exception("QBoxSample.Read: Sample stream type not found.");
}
public QBoxSample(int dataSize, ulong sampleFlags, ushort sampleStreamType)
{
if ((sampleFlags & QBox.QBOX_SAMPLE_FLAGS_META_INFO) != 0)
{
if (sampleStreamType == QBox.QBOX_SAMPLE_TYPE_H264)
{
if (v != null)
throw new Exception("QBoxSample.constructor: QBoxMetaV v already set");
v = new QBoxMetaV();
mSampleHeaderSize = 32;
}
else if ((sampleStreamType == QBox.QBOX_SAMPLE_TYPE_QMA) || (sampleStreamType == QBox.QBOX_SAMPLE_TYPE_AAC))
{
if (a != null)
throw new Exception("There should only be one QBoxMetaA for audio");
a = new QBoxMetaA();
mSampleHeaderSize = 24;
}
else throw new Exception("QBoxSample.Read: Sample stream type not found.");
}
else if ((sampleFlags & QBox.QBOX_SAMPLE_FLAGS_QMED_PRESENT) > 0)
{
switch ((uint)sampleStreamType)
{
case QBOX_SAMPLE_TYPE_AAC:
QMed.QMedAAC qmedaac = new QMed.QMedAAC();
qmed = qmedaac;
break;
//case QBOX_SAMPLE_TYPE_H264:
//case QBOX_SAMPLE_TYPE_H264_SLICE:
// QMed.QMedH264 qmedh264 = new QMed.QMedH264();
// qmed = qmedh264;
// break;
case QBOX_SAMPLE_TYPE_QPCM:
QMed.QMedPCM qmedpcm = new QMed.QMedPCM();
qmed = qmedpcm;
break;
case QBOX_SAMPLE_TYPE_Q711:
QMed.QMed711 qmed711 = new QMed.QMed711();
qmed = qmed711;
break;
case QBOX_SAMPLE_TYPE_Q722:
QMed.QMed722 qmed722 = new QMed.QMed722();
qmed = qmed722;
break;
case QBOX_SAMPLE_TYPE_Q726:
QMed.QMed726 qmed726 = new QMed.QMed726();
qmed = qmed726;
break;
case QBOX_SAMPLE_TYPE_Q728:
QMed.QMed728 qmed728 = new QMed.QMed728();
qmed = qmed728;
break;
case QBOX_SAMPLE_TYPE_JPEG:
case QBOX_SAMPLE_TYPE_MPEG2_ELEMENTARY:
case QBOX_SAMPLE_TYPE_USER_METADATA:
case QBOX_SAMPLE_TYPE_QMA:
case QBOX_SAMPLE_TYPE_DEBUG:
case QBOX_SAMPLE_TYPE_VIN_STATS_GLOBAL:
case QBOX_SAMPLE_TYPE_VIN_STATS_MB:
break;
default:
throw new Exception(string.Format("Unknown QMed type: {0}", sampleStreamType));
}
mSampleHeaderSize = (int)qmed.boxSize;
}
else
{
mSampleHeaderSize = 0;
}
}
