public void PerformanceTest()
        {
            var input1 = new TestSampleProvider(32000, 1);
            var input2 = new TestSampleProvider(32000, 1);
            var input3 = new TestSampleProvider(32000, 1);
            var input4 = new TestSampleProvider(32000, 1);
            var mp     = new MultiplexingSampleProvider(new ISampleProvider[] { input1, input2, input3, input4 }, 4);

            mp.ConnectInputToOutput(0, 3);
            mp.ConnectInputToOutput(1, 2);
            mp.ConnectInputToOutput(2, 1);
            mp.ConnectInputToOutput(3, 0);

            float[]   buffer   = new float[input1.WaveFormat.AverageBytesPerSecond / 4];
            Stopwatch s        = new Stopwatch();
            var       duration = s.Time(() =>
            {
                // read one hour worth of audio
                for (int n = 0; n < 60 * 60; n++)
                {
                    mp.Read(buffer, 0, buffer.Length);
                }
            });

            Console.WriteLine("Performance test took {0}ms", duration);
        }
Example #2
0
        private void EnsureReadsExpected(MultiplexingSampleProvider mp, float[] expected)
        {
            float[] buffer = new float[expected.Length];
            var     read   = mp.Read(buffer, 0, expected.Length);

            Assert.AreEqual(expected.Length, read);
            Assert.AreEqual(expected, buffer);
        }
        public void ReadReturnsZeroIfSingleInputHasReachedEnd()
        {
            var input1 = new TestSampleProvider(32000, 1, 0);

            float[] expected = new float[] { };
            var     mp       = new MultiplexingSampleProvider(new ISampleProvider[] { input1 }, 1);

            float[] buffer = new float[10];
            var     read   = mp.Read(buffer, 0, buffer.Length);

            Assert.AreEqual(0, read);
        }
        public void ShouldZeroOutBufferIfInputStopsShort()
        {
            var input1 = new TestSampleProvider(32000, 1, 6);

            float[] expected = new float[] { 0, 1, 2, 3, 4, 5, 0, 0, 0, 0 };
            var     mp       = new MultiplexingSampleProvider(new ISampleProvider[] { input1 }, 1);

            float[] buffer = new float[10];
            for (int n = 0; n < buffer.Length; n++)
            {
                buffer[n] = 99;
            }
            var read = mp.Read(buffer, 0, buffer.Length);

            Assert.AreEqual(6, read);
            Assert.AreEqual(expected, buffer);
        }
Example #5
0
 public int Read(float[] buffer, int offset, int count)
 {
     return(multiplexer.Read(buffer, offset, count));
 }