|
|
@ -24,27 +24,16 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
internal sealed unsafe class JpegEncoderCore : IImageEncoderInternals |
|
|
internal sealed unsafe class JpegEncoderCore : IImageEncoderInternals |
|
|
{ |
|
|
{ |
|
|
/// <summary>
|
|
|
/// <summary>
|
|
|
/// The number of quantization tables.
|
|
|
/// The available encodable frame configs.
|
|
|
/// </summary>
|
|
|
/// </summary>
|
|
|
private const int QuantizationTableCount = 2; |
|
|
private static readonly JpegFrameConfig[] FrameConfigs = CreateFrameConfigs(); |
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
/// <summary>
|
|
|
/// A scratch buffer to reduce allocations.
|
|
|
/// A scratch buffer to reduce allocations.
|
|
|
/// </summary>
|
|
|
/// </summary>
|
|
|
private readonly byte[] buffer = new byte[20]; |
|
|
private readonly byte[] buffer = new byte[20]; |
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
private readonly IJpegEncoderOptions options; |
|
|
/// The quality, that will be used to encode the image.
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
private readonly int? quality; |
|
|
|
|
|
|
|
|
|
|
|
private readonly bool? interleaved; |
|
|
|
|
|
|
|
|
|
|
|
private JpegEncodingColor? colorType; |
|
|
|
|
|
|
|
|
|
|
|
private JpegFrameConfig frameConfig; |
|
|
|
|
|
|
|
|
|
|
|
private HuffmanScanEncoder scanEncoder; |
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
/// <summary>
|
|
|
/// The output stream. All attempted writes after the first error become no-ops.
|
|
|
/// The output stream. All attempted writes after the first error become no-ops.
|
|
|
@ -55,15 +44,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
/// Initializes a new instance of the <see cref="JpegEncoderCore"/> class.
|
|
|
/// Initializes a new instance of the <see cref="JpegEncoderCore"/> class.
|
|
|
/// </summary>
|
|
|
/// </summary>
|
|
|
/// <param name="options">The options.</param>
|
|
|
/// <param name="options">The options.</param>
|
|
|
/// <param name="frameConfig">Frame config.</param>
|
|
|
public JpegEncoderCore(IJpegEncoderOptions options) |
|
|
public JpegEncoderCore(IJpegEncoderOptions options, JpegFrameConfig frameConfig) |
|
|
=> this.options = options; |
|
|
{ |
|
|
|
|
|
this.quality = options.Quality; |
|
|
|
|
|
this.interleaved = options.Interleaved; |
|
|
|
|
|
|
|
|
|
|
|
this.frameConfig = frameConfig; |
|
|
|
|
|
this.colorType = frameConfig.EncodingColor; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
public Block8x8F[] QuantizationTables { get; } = new Block8x8F[4]; |
|
|
public Block8x8F[] QuantizationTables { get; } = new Block8x8F[4]; |
|
|
|
|
|
|
|
|
@ -87,68 +69,46 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
|
|
|
|
|
|
cancellationToken.ThrowIfCancellationRequested(); |
|
|
cancellationToken.ThrowIfCancellationRequested(); |
|
|
|
|
|
|
|
|
var frame = new JpegFrame(this.frameConfig, Configuration.Default.MemoryAllocator, image, this.frameConfig.ColorType); |
|
|
|
|
|
this.scanEncoder = new HuffmanScanEncoder(frame.BlocksPerMcu, stream); |
|
|
|
|
|
|
|
|
|
|
|
this.outputStream = stream; |
|
|
this.outputStream = stream; |
|
|
|
|
|
|
|
|
ImageMetadata metadata = image.Metadata; |
|
|
ImageMetadata metadata = image.Metadata; |
|
|
JpegMetadata jpegMetadata = metadata.GetJpegMetadata(); |
|
|
JpegMetadata jpegMetadata = metadata.GetJpegMetadata(); |
|
|
|
|
|
JpegFrameConfig frameConfig = this.GetFrameConfig(jpegMetadata); |
|
|
|
|
|
|
|
|
|
|
|
bool interleaved = this.options.Interleaved ?? jpegMetadata.Interleaved ?? true; |
|
|
|
|
|
using var frame = new JpegFrame(image, frameConfig, interleaved); |
|
|
|
|
|
|
|
|
// Write the Start Of Image marker.
|
|
|
// Write the Start Of Image marker.
|
|
|
this.WriteStartOfImage(); |
|
|
this.WriteStartOfImage(); |
|
|
|
|
|
|
|
|
// Do not write APP0 marker for RGB colorspace.
|
|
|
// Write APP0 marker for any non-RGB colorspace image.
|
|
|
if (this.colorType != JpegEncodingColor.Rgb) |
|
|
if (frameConfig.EncodingColor != JpegEncodingColor.Rgb) |
|
|
{ |
|
|
{ |
|
|
this.WriteJfifApplicationHeader(metadata); |
|
|
this.WriteJfifApplicationHeader(metadata); |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
// Write Exif, XMP, ICC and IPTC profiles
|
|
|
// Else write App14 marker to indicate RGB color space.
|
|
|
this.WriteProfiles(metadata); |
|
|
else |
|
|
|
|
|
|
|
|
if (this.colorType == JpegEncodingColor.Rgb) |
|
|
|
|
|
{ |
|
|
{ |
|
|
// Write App14 marker to indicate RGB color space.
|
|
|
|
|
|
this.WriteApp14Marker(); |
|
|
this.WriteApp14Marker(); |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
// Write Exif, XMP, ICC and IPTC profiles
|
|
|
|
|
|
this.WriteProfiles(metadata); |
|
|
|
|
|
|
|
|
// Write the image dimensions.
|
|
|
// Write the image dimensions.
|
|
|
this.WriteStartOfFrame(image.Width, image.Height, this.frameConfig); |
|
|
this.WriteStartOfFrame(image.Width, image.Height, frameConfig); |
|
|
|
|
|
|
|
|
// Write the Huffman tables.
|
|
|
// Write the Huffman tables.
|
|
|
this.WriteDefineHuffmanTables(this.frameConfig.HuffmanTables); |
|
|
var scanEncoder = new HuffmanScanEncoder(frame.BlocksPerMcu, stream); |
|
|
|
|
|
this.WriteDefineHuffmanTables(frameConfig.HuffmanTables, scanEncoder); |
|
|
|
|
|
|
|
|
// Write the quantization tables.
|
|
|
// Write the quantization tables.
|
|
|
this.WriteDefineQuantizationTables(this.frameConfig.QuantizationTables, jpegMetadata); |
|
|
this.WriteDefineQuantizationTables(frameConfig.QuantizationTables, this.options.Quality, jpegMetadata); |
|
|
|
|
|
|
|
|
var spectralConverter = new SpectralConverter<TPixel>(frame, image, this.QuantizationTables, Configuration.Default); |
|
|
// Write scans with actual pixel data
|
|
|
|
|
|
using var spectralConverter = new SpectralConverter<TPixel>(frame, image, this.QuantizationTables); |
|
|
if (frame.Components.Length == 1) |
|
|
this.WriteHuffmanScans(frame, frameConfig, spectralConverter, scanEncoder, cancellationToken); |
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: false); |
|
|
|
|
|
|
|
|
|
|
|
this.WriteStartOfScan(this.frameConfig.Components); |
|
|
|
|
|
this.scanEncoder.EncodeScanBaselineSingleComponent(frame.Components[0], spectralConverter, cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
else if (this.interleaved ?? jpegMetadata.Interleaved ?? true) |
|
|
|
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: false); |
|
|
|
|
|
|
|
|
|
|
|
this.WriteStartOfScan(this.frameConfig.Components); |
|
|
|
|
|
this.scanEncoder.EncodeScanBaselineInterleaved(this.frameConfig.EncodingColor, frame, spectralConverter, cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
else |
|
|
|
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: true); |
|
|
|
|
|
spectralConverter.ConvertFull(); |
|
|
|
|
|
|
|
|
|
|
|
Span<JpegComponentConfig> components = this.frameConfig.Components; |
|
|
|
|
|
for (int i = 0; i < frame.Components.Length; i++) |
|
|
|
|
|
{ |
|
|
|
|
|
this.WriteStartOfScan(components.Slice(i, 1)); |
|
|
|
|
|
this.scanEncoder.EncodeScanBaseline(frame.Components[i], cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
// Write the End Of Image marker.
|
|
|
// Write the End Of Image marker.
|
|
|
this.WriteEndOfImageMarker(); |
|
|
this.WriteEndOfImageMarker(); |
|
|
@ -216,7 +176,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
/// <summary>
|
|
|
/// <summary>
|
|
|
/// Writes the Define Huffman Table marker and tables.
|
|
|
/// Writes the Define Huffman Table marker and tables.
|
|
|
/// </summary>
|
|
|
/// </summary>
|
|
|
private void WriteDefineHuffmanTables(JpegHuffmanTableConfig[] tableConfigs) |
|
|
private void WriteDefineHuffmanTables(JpegHuffmanTableConfig[] tableConfigs, HuffmanScanEncoder scanEncoder) |
|
|
{ |
|
|
{ |
|
|
if (tableConfigs is null) |
|
|
if (tableConfigs is null) |
|
|
{ |
|
|
{ |
|
|
@ -240,7 +200,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
this.outputStream.Write(tableConfig.Table.Count); |
|
|
this.outputStream.Write(tableConfig.Table.Count); |
|
|
this.outputStream.Write(tableConfig.Table.Values); |
|
|
this.outputStream.Write(tableConfig.Table.Values); |
|
|
|
|
|
|
|
|
this.scanEncoder.BuildHuffmanTable(tableConfig); |
|
|
scanEncoder.BuildHuffmanTable(tableConfig); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
@ -629,6 +589,40 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
this.outputStream.Write(this.buffer, 0, 2); |
|
|
this.outputStream.Write(this.buffer, 0, 2); |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
|
/// Writes scans for given config.
|
|
|
|
|
|
/// </summary>
|
|
|
|
|
|
private void WriteHuffmanScans<TPixel>(JpegFrame frame, JpegFrameConfig frameConfig, SpectralConverter<TPixel> spectralConverter, HuffmanScanEncoder encoder, CancellationToken cancellationToken) |
|
|
|
|
|
where TPixel : unmanaged, IPixel<TPixel> |
|
|
|
|
|
{ |
|
|
|
|
|
if (frame.Components.Length == 1) |
|
|
|
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: false); |
|
|
|
|
|
|
|
|
|
|
|
this.WriteStartOfScan(frameConfig.Components); |
|
|
|
|
|
encoder.EncodeScanBaselineSingleComponent(frame.Components[0], spectralConverter, cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
else if (frame.Interleaved) |
|
|
|
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: false); |
|
|
|
|
|
|
|
|
|
|
|
this.WriteStartOfScan(frameConfig.Components); |
|
|
|
|
|
encoder.EncodeScanBaselineInterleaved(frameConfig.EncodingColor, frame, spectralConverter, cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
else |
|
|
|
|
|
{ |
|
|
|
|
|
frame.AllocateComponents(fullScan: true); |
|
|
|
|
|
spectralConverter.ConvertFull(); |
|
|
|
|
|
|
|
|
|
|
|
Span<JpegComponentConfig> components = frameConfig.Components; |
|
|
|
|
|
for (int i = 0; i < frame.Components.Length; i++) |
|
|
|
|
|
{ |
|
|
|
|
|
this.WriteStartOfScan(components.Slice(i, 1)); |
|
|
|
|
|
encoder.EncodeScanBaseline(frame.Components[i], cancellationToken); |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
/// <summary>
|
|
|
/// Writes the header for a marker with the given length.
|
|
|
/// Writes the header for a marker with the given length.
|
|
|
/// </summary>
|
|
|
/// </summary>
|
|
|
@ -656,8 +650,9 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
/// </list>
|
|
|
/// </list>
|
|
|
/// </remarks>
|
|
|
/// </remarks>
|
|
|
/// <param name="configs">Quantization tables configs.</param>
|
|
|
/// <param name="configs">Quantization tables configs.</param>
|
|
|
|
|
|
/// <param name="optionsQuality">Optional quality value from the options.</param>
|
|
|
/// <param name="metadata">Jpeg metadata instance.</param>
|
|
|
/// <param name="metadata">Jpeg metadata instance.</param>
|
|
|
private void WriteDefineQuantizationTables(JpegQuantizationTableConfig[] configs, JpegMetadata metadata) |
|
|
private void WriteDefineQuantizationTables(JpegQuantizationTableConfig[] configs, int? optionsQuality, JpegMetadata metadata) |
|
|
{ |
|
|
{ |
|
|
int dataLen = configs.Length * (1 + Block8x8.Size); |
|
|
int dataLen = configs.Length * (1 + Block8x8.Size); |
|
|
|
|
|
|
|
|
@ -668,11 +663,13 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
byte[] buffer = new byte[dataLen]; |
|
|
byte[] buffer = new byte[dataLen]; |
|
|
int offset = 0; |
|
|
int offset = 0; |
|
|
|
|
|
|
|
|
|
|
|
Block8x8F workspaceBlock = default; |
|
|
|
|
|
|
|
|
for (int i = 0; i < configs.Length; i++) |
|
|
for (int i = 0; i < configs.Length; i++) |
|
|
{ |
|
|
{ |
|
|
JpegQuantizationTableConfig config = configs[i]; |
|
|
JpegQuantizationTableConfig config = configs[i]; |
|
|
|
|
|
|
|
|
int quality = GetQualityForTable(config.DestinationIndex, this.quality, metadata); |
|
|
int quality = GetQualityForTable(config.DestinationIndex, optionsQuality, metadata); |
|
|
Block8x8 scaledTable = Quantization.ScaleQuantizationTable(quality, config.Table); |
|
|
Block8x8 scaledTable = Quantization.ScaleQuantizationTable(quality, config.Table); |
|
|
|
|
|
|
|
|
// write to the output stream
|
|
|
// write to the output stream
|
|
|
@ -683,8 +680,11 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
buffer[offset++] = (byte)(uint)scaledTable[ZigZag.ZigZagOrder[j]]; |
|
|
buffer[offset++] = (byte)(uint)scaledTable[ZigZag.ZigZagOrder[j]]; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
// apply scaling and save into buffer
|
|
|
// apply FDCT multipliers and inject to the destination index
|
|
|
this.QuantizationTables[config.DestinationIndex].LoadFromInt16Scalar(ref scaledTable); |
|
|
workspaceBlock.LoadFrom(ref scaledTable); |
|
|
|
|
|
FastFloatingPointDCT.AdjustToFDCT(ref workspaceBlock); |
|
|
|
|
|
|
|
|
|
|
|
this.QuantizationTables[config.DestinationIndex] = workspaceBlock; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
// write filled buffer to the stream
|
|
|
// write filled buffer to the stream
|
|
|
@ -692,10 +692,177 @@ namespace SixLabors.ImageSharp.Formats.Jpeg |
|
|
|
|
|
|
|
|
static int GetQualityForTable(int destIndex, int? encoderQuality, JpegMetadata metadata) => destIndex switch |
|
|
static int GetQualityForTable(int destIndex, int? encoderQuality, JpegMetadata metadata) => destIndex switch |
|
|
{ |
|
|
{ |
|
|
0 => encoderQuality ?? metadata.LuminanceQuality, |
|
|
0 => encoderQuality ?? metadata.LuminanceQuality ?? Quantization.DefaultQualityFactor, |
|
|
1 => encoderQuality ?? metadata.ChrominanceQuality, |
|
|
1 => encoderQuality ?? metadata.ChrominanceQuality ?? Quantization.DefaultQualityFactor, |
|
|
_ => encoderQuality ?? metadata.Quality, |
|
|
_ => encoderQuality ?? metadata.Quality, |
|
|
}; |
|
|
}; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
private JpegFrameConfig GetFrameConfig(JpegMetadata metadata) |
|
|
|
|
|
{ |
|
|
|
|
|
JpegEncodingColor color = this.options.ColorType ?? metadata.ColorType ?? JpegEncodingColor.YCbCrRatio420; |
|
|
|
|
|
JpegFrameConfig frameConfig = Array.Find( |
|
|
|
|
|
FrameConfigs, |
|
|
|
|
|
cfg => cfg.EncodingColor == color); |
|
|
|
|
|
|
|
|
|
|
|
if (frameConfig == null) |
|
|
|
|
|
{ |
|
|
|
|
|
throw new ArgumentException(nameof(color)); |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
return frameConfig; |
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
private static JpegFrameConfig[] CreateFrameConfigs() |
|
|
|
|
|
{ |
|
|
|
|
|
var defaultLuminanceHuffmanDC = new JpegHuffmanTableConfig(@class: 0, destIndex: 0, HuffmanSpec.TheHuffmanSpecs[0]); |
|
|
|
|
|
var defaultLuminanceHuffmanAC = new JpegHuffmanTableConfig(@class: 1, destIndex: 0, HuffmanSpec.TheHuffmanSpecs[1]); |
|
|
|
|
|
var defaultChrominanceHuffmanDC = new JpegHuffmanTableConfig(@class: 0, destIndex: 1, HuffmanSpec.TheHuffmanSpecs[2]); |
|
|
|
|
|
var defaultChrominanceHuffmanAC = new JpegHuffmanTableConfig(@class: 1, destIndex: 1, HuffmanSpec.TheHuffmanSpecs[3]); |
|
|
|
|
|
|
|
|
|
|
|
var defaultLuminanceQuantTable = new JpegQuantizationTableConfig(0, Quantization.LuminanceTable); |
|
|
|
|
|
var defaultChrominanceQuantTable = new JpegQuantizationTableConfig(1, Quantization.ChrominanceTable); |
|
|
|
|
|
|
|
|
|
|
|
var yCbCrHuffmanConfigs = new JpegHuffmanTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceHuffmanDC, |
|
|
|
|
|
defaultLuminanceHuffmanAC, |
|
|
|
|
|
defaultChrominanceHuffmanDC, |
|
|
|
|
|
defaultChrominanceHuffmanAC, |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
var yCbCrQuantTableConfigs = new JpegQuantizationTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceQuantTable, |
|
|
|
|
|
defaultChrominanceQuantTable, |
|
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
|
|
return new JpegFrameConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
// YCbCr 4:4:4
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.YCbCr, |
|
|
|
|
|
JpegEncodingColor.YCbCrRatio444, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
}, |
|
|
|
|
|
yCbCrHuffmanConfigs, |
|
|
|
|
|
yCbCrQuantTableConfigs), |
|
|
|
|
|
|
|
|
|
|
|
// YCbCr 4:2:2
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.YCbCr, |
|
|
|
|
|
JpegEncodingColor.YCbCrRatio422, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 2, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
}, |
|
|
|
|
|
yCbCrHuffmanConfigs, |
|
|
|
|
|
yCbCrQuantTableConfigs), |
|
|
|
|
|
|
|
|
|
|
|
// YCbCr 4:2:0
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.YCbCr, |
|
|
|
|
|
JpegEncodingColor.YCbCrRatio420, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 2, vsf: 2, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
}, |
|
|
|
|
|
yCbCrHuffmanConfigs, |
|
|
|
|
|
yCbCrQuantTableConfigs), |
|
|
|
|
|
|
|
|
|
|
|
// YCbCr 4:1:1
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.YCbCr, |
|
|
|
|
|
JpegEncodingColor.YCbCrRatio411, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 4, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
}, |
|
|
|
|
|
yCbCrHuffmanConfigs, |
|
|
|
|
|
yCbCrQuantTableConfigs), |
|
|
|
|
|
|
|
|
|
|
|
// YCbCr 4:1:0
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.YCbCr, |
|
|
|
|
|
JpegEncodingColor.YCbCrRatio410, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 4, vsf: 2, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 1, dcIndex: 1, acIndex: 1), |
|
|
|
|
|
}, |
|
|
|
|
|
yCbCrHuffmanConfigs, |
|
|
|
|
|
yCbCrQuantTableConfigs), |
|
|
|
|
|
|
|
|
|
|
|
// Luminance
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.Grayscale, |
|
|
|
|
|
JpegEncodingColor.Luminance, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 0, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegHuffmanTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceHuffmanDC, |
|
|
|
|
|
defaultLuminanceHuffmanAC |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegQuantizationTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceQuantTable |
|
|
|
|
|
}), |
|
|
|
|
|
|
|
|
|
|
|
// Rgb
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.RGB, |
|
|
|
|
|
JpegEncodingColor.Rgb, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 82, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 71, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 66, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegHuffmanTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceHuffmanDC, |
|
|
|
|
|
defaultLuminanceHuffmanAC |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegQuantizationTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceQuantTable |
|
|
|
|
|
}), |
|
|
|
|
|
|
|
|
|
|
|
// Cmyk
|
|
|
|
|
|
new JpegFrameConfig( |
|
|
|
|
|
JpegColorSpace.Cmyk, |
|
|
|
|
|
JpegEncodingColor.Cmyk, |
|
|
|
|
|
new JpegComponentConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
new JpegComponentConfig(id: 1, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 2, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 3, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
new JpegComponentConfig(id: 4, hsf: 1, vsf: 1, quantIndex: 0, dcIndex: 0, acIndex: 0), |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegHuffmanTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceHuffmanDC, |
|
|
|
|
|
defaultLuminanceHuffmanAC |
|
|
|
|
|
}, |
|
|
|
|
|
new JpegQuantizationTableConfig[] |
|
|
|
|
|
{ |
|
|
|
|
|
defaultLuminanceQuantTable |
|
|
|
|
|
}), |
|
|
|
|
|
}; |
|
|
|
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
|
Dmitry Pentin
4 years ago