public Hashes CreateFingerprintsFromImageFrames(Frames imageFrames, FingerprintConfiguration configuration)
{
var frames = imageFrames.ToList();
var hashes = CreateOriginalFingerprintsFromFrames(frames, configuration)
.AsParallel()
.Select(fingerprint => lshAlgorithm.HashImage(fingerprint, configuration.HashingConfig))
.ToList();
return(new Hashes(hashes, imageFrames.Duration, MediaType.Video, imageFrames.RelativeTo, new[] { imageFrames.Origin }));
}
public Hashes CreateFingerprintsFromImageFrames(IEnumerable <Frame> imageFrames, FingerprintConfiguration configuration)
{
var frames = imageFrames.ToList();
var hashes = CreateOriginalFingerprintsFromFrames(frames, configuration)
.AsParallel()
.Select(fingerprint => lshAlgorithm.HashImage(fingerprint, configuration.HashingConfig))
.ToList()
.Join(frames, hashed => hashed.SequenceNumber, frame => frame.SequenceNumber, (hash, frame) =>
{
byte[] transformed = configuration.OriginalPointSaveTransform != null ? configuration.OriginalPointSaveTransform(frame) : Array.Empty <byte>();
return(new HashedFingerprint(hash.HashBins, hash.SequenceNumber, hash.StartsAt, transformed));
})
.ToList();
return(new Hashes(hashes, GetDuration(hashes, configuration.FingerprintLengthInSeconds)));
}