Revert "Standardizing Image Data implementation"
This reverts commit b2423fe6e9
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This commit is contained in:
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6bd269da60
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156d7bb463
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@ -1,8 +1,7 @@
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using System.Text.RegularExpressions;
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using LLama.Batched;
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using LLama.Common;
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using Spectre.Console;
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using LLama.Abstractions;
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using LLama.Native;
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namespace LLama.Examples.Examples
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{
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@ -19,12 +18,8 @@ namespace LLama.Examples.Examples
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var prompt = $"{{{modelImage}}}\nUSER:\nProvide a full description of the image.\nASSISTANT:\n";
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var parameters = new ModelParams(modelPath)
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{
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ContextSize = 4096,
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Seed = 1337,
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GpuLayerCount = 10
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};
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var parameters = new ModelParams(modelPath);
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using var model = LLamaWeights.LoadFromFile(parameters);
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using var context = model.CreateContext(parameters);
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@ -47,16 +42,16 @@ namespace LLama.Examples.Examples
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var imageMatches = Regex.Matches(prompt, "{([^}]*)}").Select(m => m.Value);
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var imageCount = imageMatches.Count();
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var hasImages = imageCount > 0;
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byte[][] imageBytes = null;
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if (hasImages)
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{
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var imagePathsWithCurlyBraces = Regex.Matches(prompt, "{([^}]*)}").Select(m => m.Value);
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var imagePaths = Regex.Matches(prompt, "{([^}]*)}").Select(m => m.Groups[1].Value);
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var imagePaths = Regex.Matches(prompt, "{([^}]*)}").Select(m => m.Groups[1].Value).ToList();
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List<byte[]> imageBytes;
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try
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{
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imageBytes = imagePaths.Select(File.ReadAllBytes).ToArray();
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imageBytes = imagePaths.Select(File.ReadAllBytes).ToList();
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}
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catch (IOException exception)
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{
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@ -69,15 +64,17 @@ namespace LLama.Examples.Examples
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break;
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}
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// Each prompt with images we clear cache
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// When the prompt contains images we clear KV_CACHE to restart conversation
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// See:
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// https://github.com/ggerganov/llama.cpp/discussions/3620
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ex.Context.NativeHandle.KvCacheRemove( LLamaSeqId.Zero, -1, -1 );
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int index = 0;
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foreach (var path in imagePathsWithCurlyBraces)
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{
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// First image replace to tag <image, the rest of the images delete the tag
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if (index++ == 0)
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prompt = prompt.Replace(path, "<image>");
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else
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prompt = prompt.Replace(path, "");
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prompt = prompt.Replace(path, index++ == 0 ? "<image>" : "");
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}
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@ -102,7 +99,7 @@ namespace LLama.Examples.Examples
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//
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foreach (var image in imagePaths)
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{
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ex.Images.Add(new ImageData(ImageData.DataType.ImagePath, image));
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ex.Images.Add(await File.ReadAllBytesAsync(image));
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}
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}
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@ -118,7 +115,7 @@ namespace LLama.Examples.Examples
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// let the user finish with exit
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//
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if (prompt.Equals("/exit", StringComparison.OrdinalIgnoreCase))
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if (prompt != null && prompt.Equals("/exit", StringComparison.OrdinalIgnoreCase))
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break;
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}
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@ -25,9 +25,9 @@ namespace LLama.Abstractions
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public LLavaWeights? ClipModel { get; }
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/// <summary>
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/// List of images: Image filen path, uri or image byte array. See ImageData.
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/// List of images: List of images in byte array format.
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/// </summary>
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public List<ImageData> Images { get; }
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public List<byte[]> Images { get; }
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/// <summary>
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/// Asynchronously infers a response from the model.
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@ -38,46 +38,4 @@ namespace LLama.Abstractions
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/// <returns></returns>
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IAsyncEnumerable<string> InferAsync(string text, IInferenceParams? inferenceParams = null, CancellationToken token = default);
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}
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/// <summary>
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/// Holds image data
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/// </summary>
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public class ImageData
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{
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/// <summary>
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/// constructor
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/// </summary>
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/// <param name="type"></param>
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/// <param name="data"></param>
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public ImageData(DataType type, object data) { Type = type; Data = data; }
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/// <summary>
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/// the possible types of image data
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/// </summary>
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public enum DataType
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{
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/// <summary>
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/// file path
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/// </summary>
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ImagePath,
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/// <summary>
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/// byte array
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/// </summary>
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ImageBytes,
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/// <summary>
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/// uri
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/// </summary>
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ImageURL
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}
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/// <summary>
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/// the type of this image data
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/// </summary>
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public DataType Type { get; set; }
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/// <summary>
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/// the image data (string, byte array or uri)
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/// </summary>
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public object? Data { get; set; }
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}
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}
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@ -34,7 +34,7 @@ namespace LLama
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public LLavaWeights? ClipModel { get; }
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/// <inheritdoc />
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public List<ImageData> Images { get; set; }
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public List<byte[]> Images { get; set; }
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/// <summary>
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/// The context used by the executor when running the inference.
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@ -49,7 +49,7 @@ namespace LLama
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/// <param name="logger"></param>
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public StatelessExecutor(LLamaWeights weights, IContextParams @params, ILogger? logger = null)
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{
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Images = new List<ImageData>();
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Images = new List<byte[]>();
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_weights = weights;
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_params = @params;
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_logger = logger;
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@ -90,7 +90,7 @@ namespace LLama
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lastTokens.Add(0);
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// Tokenize the prompt
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var tokens = Context.Tokenize(prompt).ToList();
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var tokens = Context.Tokenize(prompt, special: true).ToList();
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lastTokens.AddRange(tokens);
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// Evaluate the prompt, in chunks smaller than the max batch size
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@ -124,7 +124,7 @@ namespace LLama
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}
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// Check if this is the EOS token
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if (id == _weights.EndOfSentenceToken)
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if (id == _weights.Tokens.EOS)
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break;
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// Decode this token into text
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