public static int find(MkvMediaFile file, TrackEntry track, CSize size)
{
ulong trackNum = track.trackNumber;
int maxFound = 0;
for (int i = 0; i < 166; i++)
{
Cluster firstCluster = file.segment.cluster[i].loadCluster(file.stream);
int extraBytes = track.extraBytesCount();
int clusterMax = 0;
foreach (var b in firstCluster.allBlobs())
{
if (b.trackNumber != trackNum)
{
continue;
}
// Don't bother decoding NALUs. We don't need precise number, just a reasonable upper estimate.
clusterMax = Math.Max(clusterMax, (int)b.length + extraBytes);
}
Console.WriteLine("{0}\t{1}", i, clusterMax);
maxFound = Math.Max(maxFound, clusterMax);
}
return(maxFound);
}
public ReaderBase(MkvMediaFile file, TrackEntry track)
{
clusters = file.clusters;
this.track = track;
trackNumber = track.trackNumber;
strippedHeaders = track.strippedHeaderBytes();
strippedHeaderBytes = strippedHeaders?.Length ?? 0;
seekIndex = file.segment.buildSeekIndex(trackNumber);
stream = file.stream;
loadCluster(0);
}
public VideoReader(MkvMediaFile file, TrackEntry track, VideoParams videoParams, EncodedQueue queue) :
base(file, track)
{
this.queue = queue;
#if DEBUG
if (null == queue)
{
return;
}
#endif
// Enqueue SPS and PPS NALUs
videoParams.enqueueParameters(queue);
}
public VideoTrack(MkvMediaFile file, TrackEntry track)
{
this.file = file;
this.track = track;
videoCodec = file.segment.videoCodec;
switch (videoCodec)
{
case eVideoCodec.h264:
videoParams = new VideoParams264(track);
break;
case eVideoCodec.h265:
videoParams = new VideoParams265(track);
break;
default:
throw new ApplicationException("Unexpected eVideoCodec value");
}
maxBytesInFrame = MaxEncodedSize.find(file, track, videoParams.decodedSize.size);
}
public ClustersCache(MkvMediaFile file)
{
this.file = file;
clustersCount = file.segment.cluster.Length;
timeScaler = TimeScaler.mkv(file.segment.info[0].timestampScale);
}
public AudioReader(MkvMediaFile file, TrackEntry track) :
base(file, track)
{
}
public AudioTrack(MkvMediaFile file, TrackEntry track)
{
this.file = file;
this.track = track;
info = new TrackInfo(track);
}
public static int find(MkvMediaFile file, TrackEntry track, CSize size)
{
int pixels = size.cx * size.cy;
return(pixels * maxBitsPerPixel / 8);
}
