public override void Read(BoxReader reader)
{
using (new SizeChecker(this, reader)) {
base.Read(reader);
EntryCount = reader.ReadUInt32();
Entries = new SampleEntry[EntryCount];
for (int i=0; i<EntryCount; i++) {
string FormatType = parent.parent.parent.HandlerReferenceBox.HandlerType;
long pos = reader.BaseStream.Position;
Box test = new Box(BoxTypes.Any);
test.Read(reader);
reader.BaseStream.Position = pos;
switch (FormatType) {
case "soun":
AudioSampleEntry ase = new AudioSampleEntry(test.Type);
ase.Read(reader);
Entries[i] = ase;
break;
case "vide":
VisualSampleEntry vse = new VisualSampleEntry(test.Type); // usually 'mp4v'
vse.Read(reader);
Entries[i] = vse;
break;
case "hint":
HintSampleEntry hse = new HintSampleEntry(test.Type);
hse.Read(reader);
Entries[i] = hse;
break;
case "meta":
switch (test.Type.ToString()) {
case "metx":
XMLMetaDataSampleEntry xse = new XMLMetaDataSampleEntry();
xse.Read(reader);
Entries[i] = xse;
break;
case "mett":
TextMetaDataSampleEntry tds = new TextMetaDataSampleEntry();
tds.Read(reader);
Entries[i] = tds;
break;
default:
throw new Exception("Invalid Metadata Sample Entry in track");
}
break;
//case "avcC":
// break;
case "sdsm": // Apple MPEG-4 Scene Media Handler
UnknownEntry ue = new UnknownEntry(test.Type);
ue.Read(reader);
Entries[i] = ue;
break;
case "odsm": // Apple MPEG-4 ODSM Media Handler
UnknownEntry ue2 = new UnknownEntry(test.Type);
ue2.Read(reader);
Entries[i] = ue2;
break;
case "alis": // Apple iPhone
UnknownEntry ue3 = new UnknownEntry(test.Type);
ue3.Read(reader);
Entries[i] = ue3;
break;
default:
UnknownEntry ue4 = new UnknownEntry(test.Type);
ue4.Read(reader);
Entries[i] = ue4;
break;
}
}
}
}
public SampleDescriptionsBox(SampleTableBox inParent, IsochronousTrackInfo trackInfo)
: this(inParent)
{
EntryCount = 1; // FIXME: assume only one sample entry
Entries = new SampleEntry[EntryCount];
this.Size += 4UL;
BoxType btype;
if (trackInfo is RawAudioTrackInfo)
{
RawAudioTrackInfo rati = (RawAudioTrackInfo)trackInfo;
switch (rati.PayloadType)
{
case AudioPayloadType.aac:
case AudioPayloadType.mp4a:
btype = BoxTypes.Mp4a;
break;
case AudioPayloadType.wma:
btype = BoxTypes.Wma;
break;
case AudioPayloadType.samr: // 3gp audio
btype = BoxTypes.Samr;
break;
default:
throw new Exception(string.Format("Unknown audio track payload type: {0}", rati.PayloadType));
}
//btype = (rati.PayloadType == AudioPayloadType.wma) ? BoxTypes.Wma : ((rati.PayloadType == AudioPayloadType.mp4a) ? BoxTypes.Mp4a : BoxTypes.AudioSampleEntry);
Entries[0] = new AudioSampleEntry(btype, (RawAudioTrackInfo)trackInfo);
this.Size += Entries[0].Size;
}
else if (trackInfo is RawVideoTrackInfo)
{
RawVideoTrackInfo rvti = (RawVideoTrackInfo)trackInfo;
switch (rvti.PayloadType)
{
case VideoPayloadType.vc1:
btype = BoxTypes.Vc1;
break;
case VideoPayloadType.mp4v:
btype = BoxTypes.Mp4v;
break;
case VideoPayloadType.mjpeg:
btype = BoxTypes.VisualSampleEntry; // FIXME: this is not correct
break;
case VideoPayloadType.jpeg:
btype = BoxTypes.VisualSampleEntry; // FIXME: this is not correct
break;
case VideoPayloadType.avc1:
btype = BoxTypes.Avc1;
break;
default:
btype = BoxTypes.Any;
break;
}
Entries[0] = new VisualSampleEntry(btype, (RawVideoTrackInfo)trackInfo);
this.Size += Entries[0].Size;
}
else //Entries[0] = new UnknownEntry(BoxTypes.UnknownSampleEntry);
throw new Exception("unknown track type"); // error out instead of constructing an unknwon entry
}
