internal SampleTable(Mp4Reader reader)
{
Debug.Assert(reader.currentBox == eBoxType.stbl);
entries = null;
timeToSample = null;
sampleToChunk = null;
sampleSize = null;
chunkOffset = null;
compositionToSample = null;
syncSampleTable = null;
foreach (eBoxType boxType in reader.readChildren())
{
switch (boxType)
{
case eBoxType.stsd:
entries = parseSampleTable(reader);
break;
case eBoxType.stts:
timeToSample = TimingTables.readTimeToSample(reader);
break;
case eBoxType.ctts:
compositionToSample = CompositionTimeDeltas.read(reader);
break;
case eBoxType.stsc:
sampleToChunk = TimingTables.readSampleToChunk(reader);
break;
case eBoxType.stsz:
sampleSize = TimingTables.readSampleSize(reader);
break;
case eBoxType.stz2:
sampleSize = TimingTables.readSampleSizeCompact(reader);
break;
case eBoxType.stco:
chunkOffset = TimingTables.readOffsets32(reader);
break;
case eBoxType.co64:
chunkOffset = TimingTables.readOffsets64(reader);
break;
case eBoxType.stss:
syncSampleTable = TimingTables.readSyncSample(reader);
break;
default:
reader.skipCurrentBox();
break;
}
}
}
public static SampleSizeTable readSampleSize(Mp4Reader reader)
{
Debug.Assert(reader.currentBox == eBoxType.stsz);
sSampleSizeBox box = reader.readStructure <sSampleSizeBox>();
if (box.sample_size != 0)
{
return(new SampleSizeFixed(box.sample_size.endian(), box.sample_count.endian()));
}
return(SampleSizeTable.createVariable(reader, box.sample_count.endian()));
}
