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Make de-emphasis a separate method

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This commit is contained in:
Matt Nadareski
2021-07-07 10:21:23 -07:00
parent 04b56d97a1
commit 902e2d73b3
1 changed files with 21 additions and 14 deletions
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35
RedBookPlayer.Common/Hardware/SoundOutput.cs
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@@ -236,20 +236,7 @@ namespace RedBookPlayer.Common.Hardware
// Apply de-emphasis filtering, only if enabled // Apply de-emphasis filtering, only if enabled
if(ApplyDeEmphasis) if(ApplyDeEmphasis)
{ ProcessDeEmphasis(audioDataSegment);
float[][] floatAudioData = new float[2][];
floatAudioData[0] = new float[audioDataSegment.Length / 4];
floatAudioData[1] = new float[audioDataSegment.Length / 4];
ByteConverter.ToFloats16Bit(audioDataSegment, floatAudioData);
for(int i = 0; i < floatAudioData[0].Length; i++)
{
floatAudioData[0][i] = _deEmphasisFilterLeft.Process(floatAudioData[0][i]);
floatAudioData[1][i] = _deEmphasisFilterRight.Process(floatAudioData[1][i]);
}
ByteConverter.FromFloats16Bit(floatAudioData, audioDataSegment);
}
// Write out the audio data to the buffer // Write out the audio data to the buffer
Array.Copy(audioDataSegment, 0, buffer, offset, count); Array.Copy(audioDataSegment, 0, buffer, offset, count);
@@ -316,6 +303,26 @@ namespace RedBookPlayer.Common.Hardware
/// <param name="volume">New volume value</param> /// <param name="volume">New volume value</param>
public void SetVolume(int volume) => Volume = volume; public void SetVolume(int volume) => Volume = volume;
/// <summary>
/// Process de-emphasis of audio data
/// </summary>
/// <param name="audioData">Audio data to process</param>
private void ProcessDeEmphasis(byte[] audioData)
{
float[][] floatAudioData = new float[2][];
floatAudioData[0] = new float[audioData.Length / 4];
floatAudioData[1] = new float[audioData.Length / 4];
ByteConverter.ToFloats16Bit(audioData, floatAudioData);
for(int i = 0; i < floatAudioData[0].Length; i++)
{
floatAudioData[0][i] = _deEmphasisFilterLeft.Process(floatAudioData[0][i]);
floatAudioData[1][i] = _deEmphasisFilterRight.Process(floatAudioData[1][i]);
}
ByteConverter.FromFloats16Bit(floatAudioData, audioData);
}
/// <summary> /// <summary>
/// Sets or resets the de-emphasis filters /// Sets or resets the de-emphasis filters
/// </summary> /// </summary>