using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using TurboJpegWrapper;

namespace Tango.RemoteDesktop.Encoders
{
    public class TurboJpegEncoder : FrameEncoder
    {
        private TJCompressor _compressor;

        /// <summary>
        /// Initializes a new instance of the <see cref="TurboJpegEncoder"/> class.
        /// </summary>
        /// <param name="frame">The frame.</param>
        public TurboJpegEncoder(IFrame frame) : base(frame)
        {
            _compressor = new TJCompressor();
        }

        /// <summary>
        /// Returns a stream containing the encoded frame.
        /// </summary>
        /// <returns></returns>
        public override MemoryStream ToStream()
        {
            return ToStream(100);
        }

        /// <summary>
        /// Returns a byte array containing the encoded frame.
        /// </summary>
        /// <returns></returns>
        public override byte[] ToArray()
        {
            return ToArray(100);
        }

        /// <summary>
        /// Returns a stream containing the encoded frame with the specified quality.
        /// </summary>
        /// <param name="quality">The quality.</param>
        /// <returns></returns>
        public virtual MemoryStream ToStream(int quality)
        {
            return new MemoryStream(ToArray(quality));
        }

        /// <summary>
        /// Returns a byte array containing the encoded frame with the specified quality.
        /// </summary>
        /// <param name="quality">The quality.</param>
        /// <returns></returns>
        public byte[] ToArray(int quality)
        {
            return _compressor.Compress(Frame.ToBitmap(), TJSubsamplingOption.Chrominance411, quality, TJFlags.None);
        }
    }
}