コード例 #1
0
        public void Draw(Envelope envelope, Graphics gr, Rectangle bounds)
        {
            var kx = 1f * bounds.Width / envelope.Length;
            var ky = 1f * bounds.Height/2;
            var cy = bounds.Top + bounds.Height/2;
            var cx = bounds.Left;

            using(var pen = new Pen(ForeColor))
            for (int i = 0; i < envelope.Length; i++)
            {
                var x = i*kx;
                var y = envelope[i] * ky;
                gr.DrawLine(pen, cx + x, cy + y, cx + x, cy - y);
            }

            using (var pen = new Pen(ForeColor))
                gr.DrawLine(pen, cx, cy, cx + bounds.Width, cy);
        }
コード例 #2
0
        public virtual void Process(Audio item, AudioInfo info)
        {
            //build amplitude envelope
            var s = Build(info.Samples);
            //resample
            var resampler = Factory.CreateResampler();
            var resampled = resampler.Resample(s, info.Samples.Bitrate * ((float)EnvelopeLength / info.Samples.Values.Length));

            //build packed array
            var envelope = new Envelope(resampled);
            //save into audio item
            item.Data.Add(envelope);

            //build volumeDescriptor
            var volDesc = new VolumeDescriptor();
            volDesc.Build(s.Values);

            item.Data.Add(volDesc);
        }