/// <summary>
/// Open all files associated with the ISM.
/// </summary>
/// <param name="inPath">path name to ISM file without extension</param>
public override void Open(string inPath, bool withCaching)
{
_mainFolderPath = Path.GetDirectoryName(inPath);
_ismFile = new ISMFile(_mainFolderPath, Path.GetFileNameWithoutExtension(inPath));
foreach (ISMElement element in _ismFile.ISMElements)
{
GenericMediaTrack ismTrack = null;
if (element.FragmentType == FragmentType.Video)
{
ismTrack = new ISMVideoTrack(new ISMVTrackFormat(_mainFolderPath, element.Source, element), this);
}
else if (element.FragmentType == FragmentType.Audio)
{
ismTrack = new ISMAudioTrack(new ISMVTrackFormat(_mainFolderPath, element.Source, element), this);
}
MediaTracks.Add(ismTrack);
// choose longest track duration to be stream duration
if (DurationIn100NanoSecs < ismTrack.TrackDurationIn100NanoSecs)
{
DurationIn100NanoSecs = ismTrack.TrackDurationIn100NanoSecs;
}
}
CachingEnabled = withCaching;
}
public override void WriteSamples(IEnumerable <Slice> slices, CodecTypes codecType)
{
GenericMediaTrack track = (GenericMediaTrack)this[codecType, 0];
ISMVTrackFormat format = (ISMVTrackFormat)track.TrackFormat;
format.CurrentFragment.Write(m_writer);
format.CurrentFragment.CheckFilePosition(m_writer);
foreach (Slice sample in slices)
{
m_writer.Write(sample.SliceBytes, 0, sample.SliceBytes.Length);
}
format.CurrentFragment = null; // release
}
public override void Initialize(GenericMediaTrack cachedTrack)
{
base.Initialize(cachedTrack);
track.TrackFormat.FetchNextBatch -= base.GetMoreBoxes;
track.TrackFormat.FetchNextBatch += new LazyRead(TrackFormat_FetchNextBatch); // replace
// put initial blocks in dictionary
for (int i = 0; i < CacheBufCount; i++)
{
if (cache[i].SampleStreamLocations.Count > 0)
AddToDictionary(cache[i]);
}
}
protected void CreateTracks <T1, T0, T2>() where T1 : GenericAudioTrack, new() where T0 : GenericVideoTrack, new() where T2 : MP4TrackFormat, new()
{
// boolean for calling event MediaTrackLogicalBreak only once
bool breakCalled = false;
GenericMediaTrack trak = null;
T2 trackFormat;
foreach (TrackBox trackb in mmb.TrackBoxes)
{
trackFormat = new T2();
trackFormat.TrackBox = trackb;
switch (trackb.PayloadType)
{
case "samr": // 3gpp audio
case "wma ":
case "mp4a":
trak = new T1();
Hints.object1 = trackb.EdtsBox;
break;
case "mp4v": // 3gpp video
case "vc-1":
case "avc1":
trak = new T0();
IVideoTrack vt = trak as IVideoTrack;
MP4TrackFormat mp4format = trackFormat as MP4TrackFormat;
vt.IsAnamorphic = mp4format.IsAnamorphic;
Hints.object2 = trackb.EdtsBox;
break;
case "mp4s":
break; // ignore - in the case of vc-1 and wma, these are processed in ISMVStreamReader
default:
throw new Exception(string.Format("Unknown track type: {0}", trackb.PayloadType));
}
if (trak != null)
{
trak.TrackFormat = trackFormat;
trak.ParentStream = this;
AddTrack(trak);
if (!breakCalled)
{
TriggerLogicalBreak(trak);
breakCalled = true;
}
}
}
}
public override void Initialize(GenericMediaTrack cachedTrack)
{
base.Initialize(cachedTrack);
track.TrackFormat.FetchNextBatch -= base.GetMoreBoxes;
track.TrackFormat.FetchNextBatch += new LazyRead(TrackFormat_FetchNextBatch); // replace
// put initial blocks in dictionary
for (int i = 0; i < CacheBufCount; i++)
{
if (cache[i].SampleStreamLocations.Count > 0)
{
AddToDictionary(cache[i]);
}
}
}
public virtual void Initialize(GenericMediaTrack cachedTrack)
{
track = cachedTrack;
format = track.TrackFormat;
stream = track.ParentStream;
if (stream.IsForReading)
{
track.BlockWithSlice += new NextBlock(track_BlockWithSlice);
track.TrackFormat.FetchNextBatch += new LazyRead(GetMoreBoxes);
if ((writeCache == 0) && (readCache == 0))
PrepareSampleInfo(0UL); // fill up the cache with first four blocks
}
else
{
track.PrepareMediaHeaders += new SlicePutRequest(track_PrepareMediaHeaders);
}
}
public void PrepareSampleWriting(GenericMediaTrack sourceTrack, ref ulong currMdatOffset)
{
base.PrepareSampleWriting(sourceTrack, ref currMdatOffset);
}
