protected BaseAtom(MP4Document document, uint type, long size, long start)
{
Start = start;
Size = size;
Type = type;
document.AddAtom(this);
Document = document;
}
public MP4Document Build(Movie movie)
{
if (Fragmenter == null)
{
Fragmenter = new TimeBasedFragmenter();
}
Track2Sample = movie.Tracks.ToDictionary(x => x, y => y.Samples);
Track2SampleSizes = movie.Tracks.ToDictionary(x => x, y => y.Samples.Select(x => x.Size).ToArray());
var meta = Variant.Get();
MP4Document doc = new MP4Document(meta);
doc.AddAtom(CreateFileTypeBox(movie));
var chunks = movie.Tracks.ToDictionary(x => x, GetChunkSizes);
var moov = CreateMovieBox(movie, chunks);
doc.AddAtom(moov);
var contentSize = moov.GetPath(TRAK, MDIA, MINF, STBL, STSZ).OfType <AtomSTSZ>().Sum(x => x.SampleSize);
var mdat = new AtomMDAT(movie, chunks, contentSize);
doc.AddAtom(mdat);
/*
* dataOffset is where the first sample starts. In this special mdat the samples always start
* at offset 16 so that we can use the same offset for large boxes and small boxes
*/
uint dataOffset = mdat.DataOffset;
foreach (var chunkOffsetBox in ChunkOffsetBoxes.Values)
{
for (var i = 0; i < chunkOffsetBox.Entries.Count; i++)
{
chunkOffsetBox.Entries[i] += dataOffset;
}
}
foreach (var saio in SampleAuxiliaryInformationOffsetsBoxes)
{
long offset = saio.Size; // the calculation is systematically wrong by 4, I don't want to debug why. Just a quick correction --san 14.May.13
offset += 4 + 4 + 4 + 4 + 4 + 24;
// size of all header we were missing otherwise (moov, trak, mdia, minf, stbl)
object b = saio;
do
{
BaseAtom current = (BaseAtom)b;
b = current.Parent;
offset += ((IBoxContainer)b).SubAtoms.TakeWhile(box => box != current).Sum(box => box.Size);
} while (b is BoxAtom);
long[] saioOffsets = saio.Offsets;
for (int i = 0; i < saioOffsets.Length; i++)
{
saioOffsets[i] += offset;
}
}
return(doc);
}
public AtomFTYP(MP4Document document, long size, long start) : base(document, FTYP, size, start)
{
}
public AtomCTTS(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
Entries = new List <Entry>();
}
public AtomMetaField(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
public IgnoredAtom(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
public AtomFTYP(MP4Document document, long size, long start) : base(document, FTYP, size, start)
{
}
protected BaseAtom(MP4Document document, uint type, long size, long start)
{
Start = start;
Size = size;
Type = type;
document.AddAtom(this);
Document = document;
}
public AtomDINF(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
public AtomMetaField(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
protected HeaderAtom(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
protected VersionedBoxAtom(MP4Document document, uint type, long size, long start)
: base(document, type, size, start)
{
}
protected HeaderAtom(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
protected VersionedBoxAtom(MP4Document document, uint type, long size, long start)
: base(document, type, size, start)
{
}
public AtomUDTA(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}
public static bool ResolveCompleteMetadata(ref Variant metaData)
{
if (metaData[CONF_APPLICATION_EXTERNSEEKGENERATOR])
{
return(false);
}
BaseMediaDocument pDocument;
if (false)
{
}
#if HAS_MEDIA_FLV
else if ((string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_FLV ||
(string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_LIVE_OR_FLV)
{
pDocument = new FLVDocument(metaData);
}
#endif
#if HAS_MEDIA_MP3
else if ((string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_MP3)
{
pDocument = new MP3Document(metaData);
}
#endif
#if HAS_MEDIA_MP4
else if ((string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_MP4 ||
(string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_M4A ||
(string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_M4V ||
(string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_MOV ||
(string)metaData[META_MEDIA_TYPE] == MEDIA_TYPE_F4V)
{
pDocument = new MP4Document(metaData);
}
#endif
#if HAS_MEDIA_NSV
else if (metaData[Defines.META_MEDIA_TYPE] == Defines.MEDIA_TYPE_NSV)
{
pDocument = new NSVDocument(metaData);
}
#endif
else
{
Logger.FATAL("File type not supported yet. Partial metadata:\n{0}",
metaData.ToString());
return(false);
}
//2. Process the document
metaData.Log().Info("Processing file {0}", metaData[META_SERVER_FULL_PATH]);
if (!pDocument.Process())
{
Logger.FATAL("Unable to process document");
//pDocument.Dispose();
if (metaData[CONF_APPLICATION_RENAMEBADFILES])
{
File.Move((string)metaData[META_SERVER_FULL_PATH],
metaData[META_SERVER_FULL_PATH] + ".bad");
}
else
{
Logger.WARN("File {0} will not be renamed",
metaData[META_SERVER_FULL_PATH]);
}
return(false);
}
//3. Get the medatada
metaData = pDocument.MetaData;
return(true);
}
public AtomSTCO(MP4Document document, uint type, long size, long start) : base(document, STCO, size, start)
{
}
public AtomSTCO(MP4Document document, uint type, long size, long start) : base(document, STCO, size, start)
{
}
public AtomSTSC(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
Entries = new List<Entry>();
}
public IgnoredAtom(MP4Document document, uint type, long size, long start) : base(document, type, size, start)
{
}