private static void CreateVideoFingerPrintDatabase(VideoFingerPrintDatabaseWrapper database, FlatBufferBuilder builder)
{
Offset <VideoFingerPrint>[] videoFingerPrintArray = CreateVideoFingerPrintArray(database, builder);
VectorOffset videoFingerPrintDatabaseVectorOffset = VideoFingerPrintDatabase.CreateVideoFingerPrintsVector(builder, videoFingerPrintArray);
Offset <VideoFingerPrintDatabase> databaseOffset = VideoFingerPrintDatabase.CreateVideoFingerPrintDatabase(builder, videoFingerPrintDatabaseVectorOffset);
VideoFingerPrintDatabase.FinishVideoFingerPrintDatabaseBuffer(builder, databaseOffset);
}
private static VideoFingerPrintDatabaseWrapper Convert(VideoFingerPrintDatabase database)
{
IEnumerable <VideoFingerPrintWrapper> videoFingerPrints = from i in Enumerable.Range(0, database.VideoFingerPrintsLength)
select Convert(database.VideoFingerPrints(i));
return(new VideoFingerPrintDatabaseWrapper
{
VideoFingerPrints = videoFingerPrints.ToArray(),
});
}
private static VideoFingerPrintDatabase LoadDatabase(string path)
{
if (File.Exists(path) == false)
{
throw new ArgumentException();
}
using (var memoryStream = new MemoryStream())
using (var reader = new BinaryReader(File.Open(path, FileMode.Open)))
{
var buffer = new byte[DefaultBufferSize];
int count = 0;
while ((count = reader.Read(buffer, 0, buffer.Length)) != 0)
{
memoryStream.Write(buffer, 0, count);
}
return(VideoFingerPrintDatabase.GetRootAsVideoFingerPrintDatabase(new ByteBuffer(memoryStream.ToArray())));
}
}
/// <summary>
/// Load a FlatBuffer database of video fingerprints using raw bytes
/// </summary>
/// <param name="rawBytes">The raws bytes of the database</param>
/// <returns>A loaded database</returns>
public static VideoFingerPrintDatabaseWrapper Load(byte[] rawBytes)
{
return(Convert(VideoFingerPrintDatabase.GetRootAsVideoFingerPrintDatabase(new ByteBuffer(rawBytes))));
}
