static TrackMetadata parseTrack(Mp4Reader reader, uint timescale)
{
TrackHeader header = default;
MediaInfo info = default;
EditListBox editList = null;
foreach (eBoxType boxType in reader.readChildren())
{
switch (boxType)
{
case eBoxType.tkhd:
header = new TrackHeader(reader, timescale);
break;
case eBoxType.mdia:
info = new MediaInfo(reader);
break;
case eBoxType.edts:
editList = EditListBox.load(reader);
break;
default:
reader.skipCurrentBox();
break;
}
}
iEditList el = Mpeg4EditList.create(editList, timescale, info.timeScale);
return(new TrackMetadata(header, info, el));
}
public SampleReader(TrackMetadata track)
{
MediaInformation mi = track.info.mediaInformation;
sampleCount = mi.sampleTable.sampleSize.sampleCount;
sampleSize = mi.sampleTable.sampleSize;
timeToSampleEntries = mi.sampleTable.timeToSample;
sampleToChunk = mi.sampleTable.sampleToChunk;
chunkOffset = mi.sampleTable.chunkOffset;
timeScale = track.info.timeScale;
duration = track.info.duration;
sampleTable = mi.sampleTable;
timeDeltas = mi.sampleTable.compositionToSample;
editList = track.editList;
rewind();
}
internal TrackMetadata(TrackHeader header, MediaInfo info, iEditList editList)
{
this.header = header;
this.info = info;
this.editList = editList;
}