■ 웨이브 폼 렌더링을 사용하는 방법을 보여준다.
[TestLibrary 프로젝트]
▶ PeakInfo.cs
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namespace TestLibrary { /// <summary> /// 피크 정보 /// </summary> public class PeakInfo { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 최소값 - Minimum /// <summary> /// 최소값 /// </summary> public float Minimum { get; private set; } #endregion #region 최대값 - Maximum /// <summary> /// 최대값 /// </summary> public float Maximum { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - PeakInfo(minimum, maximum) /// <summary> /// 생성자 /// </summary> /// <param name="minimum">최소값</param> /// <param name="maximum">최대값</param> public PeakInfo(float minimum, float maximum) { Maximum = maximum; Minimum = minimum; } #endregion } } |
▶ IPeakProvider.cs
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using NAudio.Wave; namespace TestLibrary { /// <summary> /// 피크 공급자 인터페이스 /// </summary> public interface IPeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Method #region 초기화하기 - Initialize(provider, sampleCountPerPixel) /// <summary> /// 초기화하기 /// </summary> /// <param name="provider">샘플 공급자 인터페이스</param> /// <param name="sampleCountPerPixel">픽셀당 샘플 수</param> void Initialize(ISampleProvider provider, int sampleCountPerPixel); #endregion #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> PeakInfo GetNextPeakInfo(); #endregion } } |
▶ PeakProvider.cs
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using NAudio.Wave; namespace TestLibrary { /// <summary> /// 피크 공급자 /// </summary> public abstract class PeakProvider : IPeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 공급자 - Provider /// <summary> /// 공급자 /// </summary> protected ISampleProvider Provider { get; private set; } #endregion #region 피크당 샘플 수 - SampleCountPerPeak /// <summary> /// 피크당 샘플 수 /// </summary> protected int SampleCountPerPeak { get; private set; } #endregion #region 읽기 버퍼 - ReadBuffer /// <summary> /// 읽기 버퍼 /// </summary> protected float[] ReadBuffer { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 초기화하기 - Initialize(provider, sampleCountPerPeak) /// <summary> /// 초기화하기 /// </summary> /// <param name="provider">샘플 공급자</param> /// <param name="sampleCountPerPeak">피크당 샘플 수</param> public void Initialize(ISampleProvider provider, int sampleCountPerPeak) { Provider = provider; SampleCountPerPeak = sampleCountPerPeak; ReadBuffer = new float[sampleCountPerPeak]; } #endregion #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> public abstract PeakInfo GetNextPeakInfo(); #endregion } } |
▶ AveragePeakProvider.cs
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using System; using System.Linq; namespace TestLibrary { /// <summary> /// 평균 피크 공급자 /// </summary> public class AveragePeakProvider : PeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 스케일 /// </summary> private readonly float scale; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - AveragePeakProvider(scale) /// <summary> /// 생성자 /// </summary> /// <param name="scale">스케일</param> public AveragePeakProvider(float scale) { this.scale = scale; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 다음 피크 구하기 - GetNextPeak() /// <summary> /// 다음 피크 구하기 /// </summary> /// <returns>다음 피크</returns> public override PeakInfo GetNextPeakInfo() { int sampleCountRead = Provider.Read(ReadBuffer, 0, ReadBuffer.Length); float summary = (sampleCountRead == 0) ? 0 : ReadBuffer.Take(sampleCountRead).Select(sample => Math.Abs(sample)).Sum(); float average = summary / sampleCountRead; return new PeakInfo(average * (0 - scale), average * scale); } #endregion } } |
▶ DecibelPeakProvider.cs
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using System; using NAudio.Wave; namespace TestLibrary { /// <summary> /// 데시벨 피크 공급자 /// </summary> public class DecibelPeakProvider : IPeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 소스 공급자 /// </summary> private readonly IPeakProvider sourceProvider; /// <summary> /// 동적 범위 /// </summary> private readonly double dynamicRange; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - DecibelPeakProvider(sourceProvider, dynamicRange) /// <summary> /// 생성자 /// </summary> /// <param name="sourceProvider">소스 공급자</param> /// <param name="dynamicRange">동적 범위</param> public DecibelPeakProvider(IPeakProvider sourceProvider, double dynamicRange) { this.sourceProvider = sourceProvider; this.dynamicRange = dynamicRange; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 초기화하기 - Initialize(provider, sampleCountPerPixel) /// <summary> /// 초기화하기 /// </summary> /// <param name="provider">샘플 공급자 인터페이스</param> /// <param name="sampleCountPerPixel">픽셀당 샘플 수</param> public void Initialize(ISampleProvider provider, int sampleCountPerPixel) { throw new NotImplementedException(); } #endregion #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> public PeakInfo GetNextPeakInfo() { PeakInfo peakInfo = this.sourceProvider.GetNextPeakInfo(); double maximumDecibel = 20 * Math.Log10(peakInfo.Maximum); if(maximumDecibel < 0 - dynamicRange) { maximumDecibel = 0 - dynamicRange; } float linear = (float)((dynamicRange + maximumDecibel) / dynamicRange); return new PeakInfo(0 - linear, linear); } #endregion } } |
▶ MaximumPeakProvider.cs
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using System.Linq; namespace TestLibrary { /// <summary> /// 최대 피크 공급자 /// </summary> public class MaximumPeakProvider : PeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> public override PeakInfo GetNextPeakInfo() { int sampleCountRead = Provider.Read(ReadBuffer,0,ReadBuffer.Length); float maximum = (sampleCountRead == 0) ? 0 : ReadBuffer.Take(sampleCountRead).Max(); float minimum = (sampleCountRead == 0) ? 0 : ReadBuffer.Take(sampleCountRead).Min(); return new PeakInfo(minimum, maximum); } #endregion } } |
▶ RMSPeakProvider.cs
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using System; namespace TestLibrary { /// <summary> /// RMS 피크 공급자 /// </summary> public class RMSPeakProvider : PeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 블럭 크기 /// </summary> private readonly int blockSize; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - RMSPeakProvider(blockSize) /// <summary> /// 생성자 /// </summary> /// <param name="blockSize">블럭 크기</param> public RMSPeakProvider(int blockSize) { this.blockSize = blockSize; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> public override PeakInfo GetNextPeakInfo() { int sampleCountRead = Provider.Read(ReadBuffer, 0, ReadBuffer.Length); float maximum = 0.0f; for(int x = 0; x < sampleCountRead; x += blockSize) { double total = 0.0; for(int y = 0; y < blockSize && x + y < sampleCountRead; y++) { total += ReadBuffer[x + y] * ReadBuffer[x + y]; } float rms = (float) Math.Sqrt(total / blockSize); maximum = Math.Max(maximum, rms); } return new PeakInfo(0 -maximum, maximum); } #endregion } } |
▶ SamplingPeakProvider.cs
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using System; namespace TestLibrary { /// <summary> /// 샘플링 피크 공급자 /// </summary> public class SamplingPeakProvider : PeakProvider { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 샘플 간격 /// </summary> private readonly int sampleInterval; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SamplingPeakProvider(sampleInterval) /// <summary> /// 생성자 /// </summary> /// <param name="sampleInterval">샘플 간격</param> public SamplingPeakProvider(int sampleInterval) { this.sampleInterval = sampleInterval; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 다음 피크 정보 구하기 - GetNextPeakInfo() /// <summary> /// 다음 피크 정보 구하기 /// </summary> /// <returns>다음 피크 정보</returns> public override PeakInfo GetNextPeakInfo() { int sampleCountRead = Provider.Read(ReadBuffer,0,ReadBuffer.Length); float minimum = 0.0f; float maximum = 0.0f; for(int x = 0; x < sampleCountRead; x += sampleInterval) { minimum = Math.Min(minimum, ReadBuffer[x]); maximum = Math.Max(maximum, ReadBuffer[x]); } return new PeakInfo(minimum,maximum); } #endregion } } |
▶ WaveFormRendererSetting.cs
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using System.Drawing; using System.Drawing.Drawing2D; namespace TestLibrary { /// <summary> /// 웨이브 폼 렌더링 설정 /// </summary> public class WaveFormRendererSetting { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 명칭 - Name /// <summary> /// 명칭 /// </summary> public string Name { get; set; } #endregion #region 너비 - Width /// <summary> /// 너비 /// </summary> public int Width { get; set; } #endregion #region 상단 높이 - TopHeight /// <summary> /// 상단 높이 /// </summary> public int TopHeight { get; set; } #endregion #region 하단 높이 - BottomHeight /// <summary> /// 하단 높이 /// </summary> public int BottomHeight { get; set; } #endregion #region 피크당 픽셀 수 - PixelCountPerPeak /// <summary> /// 피크당 픽셀 수 /// </summary> public int PixelCountPerPeak { get; set; } #endregion #region 공간 픽셀 수 - SpacerPixelCount /// <summary> /// 공간 픽셀 수 /// </summary> public int SpacerPixelCount { get; set; } #endregion #region 상단 피크 펜 - TopPeakPen /// <summary> /// 상단 피크 펜 /// </summary> public virtual Pen TopPeakPen { get; set; } #endregion #region 상단 공간 펜 - TopSpacerPen /// <summary> /// 상단 공간 펜 /// </summary> public virtual Pen TopSpacerPen { get; set; } #endregion #region 하단 피크 펜 - BottomPeakPen /// <summary> /// 하단 피크 펜 /// </summary> public virtual Pen BottomPeakPen { get; set; } #endregion #region 하단 공간 펜 - BottomSpacerPen /// <summary> /// 하단 공간 펜 /// </summary> public virtual Pen BottomSpacerPen { get; set; } #endregion #region 데시벨 스케일 - DecibelScale /// <summary> /// 데시벨 스케일 /// </summary> public bool DecibelScale { get; set; } #endregion #region 배경 색상 - BackgroundColor /// <summary> /// 배경 색상 /// </summary> public Color BackgroundColor { get; set; } #endregion #region 배경 이미지 - BackgroundImage /// <summary> /// 배경 이미지 /// </summary> public Image BackgroundImage { get; set; } #endregion #region 배경 브러시 - BackgroundBrush /// <summary> /// 배경 브러시 /// </summary> public Brush BackgroundBrush { get { if(BackgroundImage == null) { return new SolidBrush(BackgroundColor); } return new TextureBrush(BackgroundImage, WrapMode.Clamp); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 생성자 - WaveFormRendererSetting() /// <summary> /// 생성자 /// </summary> protected WaveFormRendererSetting() { Width = 800; TopHeight = 50; BottomHeight = 50; PixelCountPerPeak = 1; SpacerPixelCount = 0; BackgroundColor = Color.Beige; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 그라디언트 펜 생성하기 - CreateGradientPen(height, startColor, endColor) /// <summary> /// 그라디언트 펜 생성하기 /// </summary> /// <param name="height">높이</param> /// <param name="startColor">시작 색상</param> /// <param name="endColor">종료 색상</param> /// <returns>그라디언트 펜</returns> protected static Pen CreateGradientPen(int height, Color startColor, Color endColor) { LinearGradientBrush brush = new LinearGradientBrush(new Point(0, 0), new Point(0, height), startColor, endColor); return new Pen(brush); } #endregion } } |
▶ SoundCloudBlockWaveFormSetting.cs
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using System.Drawing; namespace TestLibrary { /// <summary> /// 사운드 클라우드 블럭 웨이브 폼 설정 /// </summary> public class SoundCloudBlockWaveFormSetting : WaveFormRendererSetting { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 상단 공간 시작 색상 /// </summary> private readonly Color topSpacerStartColor; /// <summary> /// 상단 펜 /// </summary> private Pen topPen; /// <summary> /// 상단 공간 펜 /// </summary> private Pen topSpacerPen; /// <summary> /// 하단 펜 /// </summary> private Pen bottomPen; /// <summary> /// 하단 공간 펜 /// </summary> private Pen bottomSpacerPen; /// <summary> /// 최근 상단 높이 /// </summary> private int lastTopHeight; /// <summary> /// 최근 하단 높이 /// </summary> private int lastBottomHeight; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 상단 피크 펜 - TopPeakPen /// <summary> /// 상단 피크 펜 /// </summary> public override Pen TopPeakPen { get { return this.topPen; } set { this.topPen = value; } } #endregion #region 상단 공간 그라디언트 시작 색상 - TopSpacerGradientStartColor /// <summary> /// 상단 공간 그라디언트 시작 색상 /// </summary> public Color TopSpacerGradientStartColor { get; set; } #endregion #region 상단 공간 펜 - TopSpacerPen /// <summary> /// 상단 공간 펜 /// </summary> public override Pen TopSpacerPen { get { if(this.topSpacerPen == null || this.lastBottomHeight != BottomHeight || this.lastTopHeight != TopHeight) { this.topSpacerPen = CreateGradientPen(TopHeight, TopSpacerGradientStartColor, this.topSpacerStartColor); this.lastTopHeight = TopHeight; this.lastBottomHeight = BottomHeight; } return topSpacerPen; } set { this.topSpacerPen = value; } } #endregion #region 하단 피크 펜 - BottomPeakPen /// <summary> /// 하단 피크 펜 /// </summary> public override Pen BottomPeakPen { get { return bottomPen; } set { bottomPen = value; } } #endregion #region 하단 공간 펜 - BottomSpacerPen /// <summary> /// 하단 공간 펜 /// </summary> public override Pen BottomSpacerPen { get { return this.bottomSpacerPen; } set { this.bottomSpacerPen = value; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SoundCloudBlockWaveFormSetting(topPeakColor, topSpacerStartColor, bottomPeakColor, bottomSpacerColor) /// <summary> /// 생성자 /// </summary> /// <param name="topPeakColor">상단 피크 색상</param> /// <param name="topSpacerStartColor">상단 공간 시작 색상</param> /// <param name="bottomPeakColor">하단 피크 색상</param> /// <param name="bottomSpacerColor">하단 공간 색상</param> public SoundCloudBlockWaveFormSetting(Color topPeakColor, Color topSpacerStartColor, Color bottomPeakColor, Color bottomSpacerColor) { this.topPen = new Pen(topPeakColor); this.topSpacerStartColor = topSpacerStartColor; this.bottomPen = new Pen(bottomPeakColor); this.bottomSpacerPen = new Pen(bottomSpacerColor); PixelCountPerPeak = 4; SpacerPixelCount = 2; BackgroundColor = Color.White; TopSpacerGradientStartColor = Color.White; } #endregion } } |
▶ SoundCloudOriginalSetting.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; namespace TestLibrary { /// <summary> /// 사운드 클라우드 원본 설정 /// </summary> public class SoundCloudOriginalSetting : WaveFormRendererSetting { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 최근 상단 높이 /// </summary> private int lastTopHeight; /// <summary> /// 최근 하단 높이 /// </summary> private int lastBottomHeight; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 상단 피크 펜 - TopPeakPen /// <summary> /// 상단 피크 펜 /// </summary> public override Pen TopPeakPen { get { if(base.TopPeakPen == null || this.lastTopHeight != TopHeight) { base.TopPeakPen = CreateGradientPen(TopHeight, Color.FromArgb(120, 120, 120), Color.FromArgb(50, 50, 50)); this.lastTopHeight = TopHeight; } return base.TopPeakPen; } set { base.TopPeakPen = value; } } #endregion #region 하단 피크 펜 - BottomPeakPen /// <summary> /// 하단 피크 펜 /// </summary> public override Pen BottomPeakPen { get { if(base.BottomPeakPen == null || this.lastBottomHeight != BottomHeight || this.lastTopHeight != TopHeight) { base.BottomPeakPen = CreateSoundCloudBottomPen(TopHeight, BottomHeight); this.lastTopHeight = TopHeight; this.lastBottomHeight = BottomHeight; } return base.BottomPeakPen; } set { base.BottomPeakPen = value; } } #endregion #region 하단 공간 펜 - BottomSpacerPen /// <summary> /// 하단 공간 펜 /// </summary> public override Pen BottomSpacerPen { get { throw new InvalidOperationException("No spacer pen required"); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - SoundCloudOriginalSetting() /// <summary> /// 생성자 /// </summary> public SoundCloudOriginalSetting() { PixelCountPerPeak = 1; SpacerPixelCount = 0; BackgroundColor = Color.White; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 사운드 클라우드 하단 펜 생성하기 - CreateSoundCloudBottomPen(topHeight, bottomHeight) /// <summary> /// 사운드 클라우드 하단 펜 생성하기 /// </summary> /// <param name="topHeight"></param> /// <param name="bottomHeight"></param> /// <returns>사운드 클라우드 하단 펜</returns> private Pen CreateSoundCloudBottomPen(int topHeight, int bottomHeight) { LinearGradientBrush brush = new LinearGradientBrush ( new Point(0, topHeight), new Point(0, topHeight + bottomHeight), Color.FromArgb(16, 16, 16), Color.FromArgb(150, 150, 150) ); ColorBlend colorBlend = new ColorBlend(3); colorBlend.Colors[0] = Color.FromArgb(16, 16, 16); colorBlend.Colors[1] = Color.FromArgb(142, 142, 142); colorBlend.Colors[2] = Color.FromArgb(150, 150, 150); colorBlend.Positions[0] = 0; colorBlend.Positions[1] = 0.1f; colorBlend.Positions[2] = 1.0f; brush.InterpolationColors = colorBlend; return new Pen(brush); } #endregion } } |
▶ StandardWaveFormRendererSetting.cs
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using System.Drawing; namespace TestLibrary { /// <summary> /// 표준 웨이브 폼 렌더러 설정 /// </summary> public class StandardWaveFormRendererSetting : WaveFormRendererSetting { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 상단 피크 펜 - TopPeakPen /// <summary> /// 상단 피크 펜 /// </summary> public override Pen TopPeakPen { get; set; } #endregion #region 상단 공간 펜 - TopSpacerPen /// <summary> /// 상단 공간 펜 /// </summary> public override Pen TopSpacerPen { get; set; } #endregion #region 하단 피크 펜 - BottomPeakPen /// <summary> /// 하단 피크 펜 /// </summary> public override Pen BottomPeakPen { get; set; } #endregion #region 하단 공간 펜 - BottomSpacerPen /// <summary> /// 하단 공간 펜 /// </summary> public override Pen BottomSpacerPen { get; set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - StandardWaveFormRendererSetting() /// <summary> /// 생성자 /// </summary> public StandardWaveFormRendererSetting() { PixelCountPerPeak = 1; SpacerPixelCount = 0; TopPeakPen = Pens.Maroon; BottomPeakPen = Pens.Peru; } #endregion } } |
▶ WaveFormRenderer.cs
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using System; using System.Drawing; using NAudio.Wave; namespace TestLibrary { /// <summary> /// 웨이브 폼 렌더러 /// </summary> public class WaveFormRenderer { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 렌더링하기 - Render(peakProvider, setting) /// <summary> /// 렌더링하기 /// </summary> /// <param name="peakProvider">피크 공급자</param> /// <param name="setting">설정</param> /// <returns>이미지</returns> private static Image Render(IPeakProvider peakProvider, WaveFormRendererSetting setting) { if(setting.DecibelScale) { peakProvider = new DecibelPeakProvider(peakProvider, 48); } Bitmap bitmap = new Bitmap(setting.Width, setting.TopHeight + setting.BottomHeight); if(setting.BackgroundColor == Color.Transparent) { bitmap.MakeTransparent(); } using(Graphics graphics = Graphics.FromImage(bitmap)) { graphics.FillRectangle(setting.BackgroundBrush, 0,0,bitmap.Width,bitmap.Height); int middlePoint = setting.TopHeight; int x = 0; PeakInfo currentPeakInfo = peakProvider.GetNextPeakInfo(); while(x < setting.Width) { PeakInfo nextPeakInfo = peakProvider.GetNextPeakInfo(); for(int i = 0; i < setting.PixelCountPerPeak; i++) { float lineHeight = setting.TopHeight * currentPeakInfo.Maximum; graphics.DrawLine(setting.TopPeakPen, x, middlePoint, x, middlePoint - lineHeight); lineHeight = setting.BottomHeight * currentPeakInfo.Minimum; graphics.DrawLine(setting.BottomPeakPen, x, middlePoint, x, middlePoint - lineHeight); x++; } for(int i = 0; i < setting.SpacerPixelCount; i++) { float minimum = Math.Max(currentPeakInfo.Minimum, nextPeakInfo.Minimum); float maximum = Math.Min(currentPeakInfo.Maximum, nextPeakInfo.Maximum); float lineHeight = setting.TopHeight * maximum; graphics.DrawLine(setting.TopSpacerPen, x, middlePoint, x, middlePoint - lineHeight); lineHeight = setting.BottomHeight * minimum; graphics.DrawLine(setting.BottomSpacerPen, x, middlePoint, x, middlePoint - lineHeight); x++; } currentPeakInfo = nextPeakInfo; } } return bitmap; } #endregion #region 렌더링하기 - Render(waveStream, peakProvider, setting) /// <summary> /// 렌더링하기 /// </summary> /// <param name="waveStream">웨이브 스트림</param> /// <param name="peakProvider">피크 공급자</param> /// <param name="setting">설정</param> /// <returns>이미지</returns> public Image Render(WaveStream waveStream, IPeakProvider peakProvider, WaveFormRendererSetting setting) { int byteCountPerSample = (waveStream.WaveFormat.BitsPerSample / 8); long sampleCount = waveStream.Length / (byteCountPerSample); int sampleCountPerPixel = (int)(sampleCount / setting.Width); int stepSize = setting.PixelCountPerPeak + setting.SpacerPixelCount; peakProvider.Initialize(waveStream.ToSampleProvider(), sampleCountPerPixel * stepSize); return Render(peakProvider, setting); } #endregion #region 렌더링하기 - Render(waveStream, setting) /// <summary> /// 렌더링하기 /// </summary> /// <param name="waveStream">웨이브 스트림</param> /// <param name="setting">설정</param> /// <returns>이미지</returns> public Image Render(WaveStream waveStream, WaveFormRendererSetting setting) { return Render(waveStream, new MaximumPeakProvider(), setting); } #endregion } } |
[TestProject 프로젝트]
▶ MainForm.cs
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using System; using System.Drawing; using System.Threading.Tasks; using System.Windows.Forms; using NAudio.Wave; using TestLibrary; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 오디오 파일 경로 /// </summary> private string audioFilePath; /// <summary> /// 이미지 파일 경로 /// </summary> private string imageFilePath; /// <summary> /// 웨이브 폼 렌더러 /// </summary> private readonly WaveFormRenderer render; /// <summary> /// 웨이브 폼 렌더러 설정 /// </summary> private readonly WaveFormRendererSetting setting; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.render = new WaveFormRenderer(); Color topSpacerColor1 = Color.FromArgb(64, 83 , 22 , 3 ); Color topSpacerColor2 = Color.FromArgb(64, 224, 224, 224); #region 설정 항목을 설정한다. StandardWaveFormRendererSetting setting1 = new StandardWaveFormRendererSetting() { Name = "Standard" }; SoundCloudOriginalSetting setting2 = new SoundCloudOriginalSetting() { Name = "SoundCloud Original" }; SoundCloudBlockWaveFormSetting setting3 = new SoundCloudBlockWaveFormSetting ( Color.FromArgb(102, 102, 102), Color.FromArgb(103, 103, 103), Color.FromArgb(179, 179, 179), Color.FromArgb(218, 218, 218) ) { Name = "SoundCloud Light Blocks" }; SoundCloudBlockWaveFormSetting setting4 = new SoundCloudBlockWaveFormSetting ( Color.FromArgb(52 , 52 , 52 ), Color.FromArgb(55 , 55 , 55 ), Color.FromArgb(154, 154, 154), Color.FromArgb(204, 204, 204) ) { Name = "SoundCloud Darker Blocks" }; SoundCloudBlockWaveFormSetting setting5 = new SoundCloudBlockWaveFormSetting ( Color.FromArgb(255, 76 , 0 ), Color.FromArgb(255, 52 , 2 ), Color.FromArgb(255, 171, 141), Color.FromArgb(255, 213, 199) ) { Name = "SoundCloud Orange Blocks" }; SoundCloudBlockWaveFormSetting setting6 = new SoundCloudBlockWaveFormSetting ( Color.FromArgb(196, 197, 53, 0 ), topSpacerColor1, Color.FromArgb(196, 79 , 26, 0 ), Color.FromArgb(64 , 79 , 79, 79) ) { Name = "SoundCloud Orange Transparent Blocks", PixelCountPerPeak = 2, SpacerPixelCount = 1, TopSpacerGradientStartColor = topSpacerColor1, BackgroundColor = Color.Transparent }; SoundCloudBlockWaveFormSetting setting7 = new SoundCloudBlockWaveFormSetting ( Color.FromArgb(196, 224, 225, 224), topSpacerColor2, Color.FromArgb(196, 128, 128, 128), Color.FromArgb(64 , 128, 128, 128) ) { Name = "SoundCloud Gray Transparent Blocks", PixelCountPerPeak = 2, SpacerPixelCount = 1, TopSpacerGradientStartColor = topSpacerColor2, BackgroundColor = Color.Transparent }; #endregion this.setting = setting1; #region 피크 계산 전략 콤보 박스를 설정한다. this.peakCalculationStrategyComboBox.Items.Add("Max Absolute Value"); this.peakCalculationStrategyComboBox.Items.Add("Max Rms Value" ); this.peakCalculationStrategyComboBox.Items.Add("Sampled Peaks" ); this.peakCalculationStrategyComboBox.Items.Add("Scaled Average" ); this.peakCalculationStrategyComboBox.SelectedIndex = 0; #endregion #region 렌더링 스타일 콤보 박스를 설정한다. this.renderingStyleComboBox.DisplayMember = "Name"; this.renderingStyleComboBox.DataSource = new WaveFormRendererSetting[] { setting1, setting2, setting3, setting4, setting5, setting6, setting7 }; this.renderingStyleComboBox.SelectedIndex = 5; #endregion #region 상단 색상 버튼을 설정한다. this.topColorButton.BackColor = this.setting.TopPeakPen.Color; #endregion #region 하단 색상 버튼을 설정한다. this.bottomColorButton.BackColor = this.setting.BottomPeakPen.Color; #endregion #region Rendering 레이블을 설정한다. this.renderingLabel.Visible = false; #endregion #region 이벤트를 설정한다. this.loadButton.Click += loadButton_Click; this.peakCalculationStrategyComboBox.SelectedIndexChanged += peakCalculationStrategyComboBox_SelectedIndexChanged; ; this.decibelCheckBox.CheckedChanged += decibelCheckBox_CheckedChanged; this.renderingStyleComboBox.SelectedIndexChanged += renderingStyleComboBox_SelectedIndexChanged; this.topColorButton.Click += colorButton_Click; this.bottomColorButton.Click += colorButton_Click; this.loadBackgroundImageButton.Click += loadBackgroundImageButton_Click; this.refreshImageButton.Click += refreshImageButton_Click; this.saveButton.Click += saveButton_Click; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 오디오 파일 로드 버튼 클릭시 처리하기 - loadButton_Click(sender, e) /// <summary> /// 오디오 파일 로드 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void loadButton_Click(object sender, EventArgs e) { OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Filter = "MP3 파일|*.mp3|WAV 파일|*.wav"; if(openFileDialog.ShowDialog(this) == DialogResult.OK) { this.audioFilePath = openFileDialog.FileName; RenderWaveform(); } } #endregion #region 피크 계산 전략 콤보 박스 선택 인덱스 변경시 처리하기 - peakCalculationStrategyComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 피크 계산 전략 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void peakCalculationStrategyComboBox_SelectedIndexChanged(object sender, EventArgs e) { RenderWaveform(); } #endregion #region 데시빌 체크 박스 체크 변경시 처리하기 - decibelCheckBox_CheckedChanged(sender, e) /// <summary> /// 데시빌 체크 박스 체크 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void decibelCheckBox_CheckedChanged(object sender, EventArgs e) { RenderWaveform(); } #endregion #region 렌더링 스타일 콤보 박스 선택 인덱스 변경시 처리하기 - renderingStyleComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 렌더링 스타일 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void renderingStyleComboBox_SelectedIndexChanged(object sender, EventArgs e) { RenderWaveform(); } #endregion #region 색상 버튼 클릭시 처리하기 - colorButton_Click(sender, e) /// <summary> /// 색상 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void colorButton_Click(object sender, EventArgs e) { Button button = sender as Button; ColorDialog colorDialog = new ColorDialog(); colorDialog.Color = button.BackColor; if(colorDialog.ShowDialog(this) == DialogResult.OK) { button.BackColor = colorDialog.Color; this.setting.TopPeakPen = new Pen(this.topColorButton.BackColor ); this.setting.BottomPeakPen = new Pen(this.bottomColorButton.BackColor); RenderWaveform(); } } #endregion #region 배경 이미지 로드 버튼 클릭시 처리하기 - loadBackgroundImageButton_Click(sender, e) /// <summary> /// 배경 이미지 로드 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void loadBackgroundImageButton_Click(object sender, EventArgs e) { OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Filter = "이미지 파일|*.bmp;*.png;*.jpg"; if(openFileDialog.ShowDialog() == DialogResult.OK) { this.imageFilePath = openFileDialog.FileName; RenderWaveform(); } } #endregion #region 이미지 갱신 버튼 클릭시 처리하기 - refreshImageButton_Click(sender, e) /// <summary> /// 이미지 갱신 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void refreshImageButton_Click(object sender, EventArgs e) { RenderWaveform(); } #endregion #region 저장 버튼 클릭시 처리하기 - saveButton_Click(sender, e) /// <summary> /// 저장 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void saveButton_Click(object sender, EventArgs e) { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = "PNG 파일|*.png"; if(saveFileDialog.ShowDialog(this) == DialogResult.OK) { this.pictureBox.Image.Save(saveFileDialog.FileName); } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 웨이브 폼 렌더러 설정 구하기 - GetWaveFormRendererSetting() /// <summary> /// 웨이브 폼 렌더러 설정 구하기 /// </summary> /// <returns>웨이브 폼 렌더러 설정</returns> private WaveFormRendererSetting GetWaveFormRendererSetting() { WaveFormRendererSetting setting = (WaveFormRendererSetting)this.renderingStyleComboBox.SelectedItem; setting.TopHeight = (int)this.topHeightNumericUpDown.Value; setting.BottomHeight = (int)this.bottomHeightNumericUpDown.Value; setting.Width = (int)this.imageWidthNumericUpDown.Value; setting.DecibelScale = this.decibelCheckBox.Checked; return setting; } #endregion #region 피크 공급자 구하기 - GetPeakProvider() /// <summary> /// 피크 공급자 구하기 /// </summary> /// <returns>피크 공급자</returns> private IPeakProvider GetPeakProvider() { switch(this.peakCalculationStrategyComboBox.SelectedIndex) { case 0 : return new MaximumPeakProvider(); case 1 : return new RMSPeakProvider((int)this.blockSizeNumericUpDown.Value); case 2 : return new SamplingPeakProvider((int)this.blockSizeNumericUpDown.Value); case 3 : return new AveragePeakProvider(4); default : throw new InvalidOperationException("Unknown calculation strategy"); } } #endregion #region 렌더링 스레딩 처리하기 - ProcessRenderingThread(peakProvider, setting) /// <summary> /// 렌더링 스레딩 처리하기 /// </summary> /// <param name="peakProvider">피크 공급자</param> /// <param name="setting">설정</param> private void ProcessRenderingThread(IPeakProvider peakProvider, WaveFormRendererSetting setting) { Image image = null; try { using(AudioFileReader reader = new AudioFileReader(this.audioFilePath)) { image = this.render.Render(reader, peakProvider, setting); } } catch(Exception exception) { MessageBox.Show(exception.Message); } BeginInvoke ( (Action) ( () => { this.renderingLabel.Visible = false; this.pictureBox.Image = image; Enabled = true; } ) ); } #endregion #region 웨이브 폼 렌더링하기 - RenderWaveform() /// <summary> /// 웨이브 폼 렌더링하기 /// </summary> private void RenderWaveform() { if(this.audioFilePath == null) { return; } WaveFormRendererSetting setting = GetWaveFormRendererSetting(); if(this.imageFilePath != null) { setting.BackgroundImage = new Bitmap(this.imageFilePath); } this.pictureBox.Image = null; this.renderingLabel.Visible = true; Enabled = false; IPeakProvider peakProvider = GetPeakProvider(); Task.Factory.StartNew(() => ProcessRenderingThread(peakProvider, setting)); } #endregion } } |
