Embed yolo files

examples/yolo/gguf-addfile.py

@@ -0,0 +1,164 @@
+#!/usr/bin/env python3
+# gguf-addfile.py srcfile dstfile addfiles ...
+
+from __future__ import annotations
+
+import logging
+import argparse
+import os
+import sys
+from pathlib import Path
+from typing import Any
+
+import numpy as np
+
+# Necessary to load the local gguf package
+if "NO_LOCAL_GGUF" not in os.environ and (Path(__file__).parent.parent.parent / 'gguf-py').exists():
+    sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from gguf import GGUFReader, GGUFWriter, ReaderField, GGUFEndian, GGUFValueType, Keys  # noqa: E402
+
+logger = logging.getLogger("gguf-addfile")
+
+
+def get_file_host_endian(reader: GGUFReader) -> tuple[str, str]:
+    host_endian = 'LITTLE' if np.uint32(1) == np.uint32(1).newbyteorder("<") else 'BIG'
+    if reader.byte_order == 'S':
+        file_endian = 'BIG' if host_endian == 'LITTLE' else 'LITTLE'
+    else:
+        file_endian = host_endian
+    return (host_endian, file_endian)
+
+
+def get_byteorder(reader: GGUFReader) -> GGUFEndian:
+    if np.uint32(1) == np.uint32(1).newbyteorder("<"):
+        # Host is little endian
+        host_endian = GGUFEndian.LITTLE
+        swapped_endian = GGUFEndian.BIG
+    else:
+        # Sorry PDP or other weird systems that don't use BE or LE.
+        host_endian = GGUFEndian.BIG
+        swapped_endian = GGUFEndian.LITTLE
+
+    if reader.byte_order == "S":
+        return swapped_endian
+    else:
+        return host_endian
+
+
+def decode_field(field: ReaderField) -> Any:
+    if field and field.types:
+        main_type = field.types[0]
+
+        if main_type == GGUFValueType.ARRAY:
+            sub_type = field.types[-1]
+
+            if sub_type == GGUFValueType.STRING:
+                if not field.name[0] == Keys.General.FILE_MARK:
+                    return [str(bytes(field.parts[idx]), encoding='utf8') for idx in field.data]
+                else:
+                    return [bytes(field.parts[idx]) for idx in field.data]
+            else:
+                return [pv for idx in field.data for pv in field.parts[idx].tolist()]
+        if main_type == GGUFValueType.STRING:
+            if not field.name[0] == Keys.General.FILE_MARK:
+                return str(bytes(field.parts[-1]), encoding='utf8')
+            else:
+                return bytes(field.parts[-1])
+        else:
+            return field.parts[-1][0]
+
+    return None
+
+
+def get_field_data(reader: GGUFReader, key: str) -> Any:
+    field = reader.get_field(key)
+
+    return decode_field(field)
+
+
+def copy_with_new_metadata(reader: gguf.GGUFReader, writer: gguf.GGUFWriter, new_metadata: Mapping[str, str]) -> None:
+    for field in reader.fields.values():
+        # Suppress virtual fields and fields written by GGUFWriter
+        if field.name == Keys.General.ARCHITECTURE or field.name.startswith('GGUF.'):
+            logger.debug(f'Suppressing {field.name}')
+            continue
+
+        # Skip old chat templates if we have new ones
+        if field.name.startswith(Keys.Tokenizer.CHAT_TEMPLATE) and Keys.Tokenizer.CHAT_TEMPLATE in new_metadata:
+            logger.debug(f'Skipping {field.name}')
+            continue
+
+        old_val = decode_field(field)
+        val = new_metadata.get(field.name, old_val)
+
+        if field.name in new_metadata:
+            logger.debug(f'Modifying {field.name}: "{old_val}" -> "{val}"')
+            del new_metadata[field.name]
+        elif val is not None:
+            logger.debug(f'Copying {field.name}')
+
+        if val is not None:
+            writer.add_key(field.name)
+            writer.add_val(val, field.types[0])
+
+    if Keys.Tokenizer.CHAT_TEMPLATE in new_metadata:
+        logger.debug('Adding chat template(s)')
+        writer.add_chat_template(new_metadata[Keys.Tokenizer.CHAT_TEMPLATE])
+        del new_metadata[Keys.Tokenizer.CHAT_TEMPLATE]
+
+    for key, name in new_metadata.items():
+        logger.debug(f'Adding {key}: {name}')
+        with open(name, "rb") as f:
+            val = f.read()
+            writer.add_object(key, val)
+
+    for tensor in reader.tensors:
+        # Dimensions are written in reverse order, so flip them first
+        shape = np.flipud(tensor.shape)
+        writer.add_tensor_info(tensor.name, shape, tensor.data.dtype, tensor.data.nbytes, tensor.tensor_type)
+
+    writer.write_header_to_file()
+    writer.write_kv_data_to_file()
+    writer.write_ti_data_to_file()
+
+    for tensor in reader.tensors:
+        writer.write_tensor_data(tensor.data)
+
+    writer.close()
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Add files to GGUF file metadata")
+    parser.add_argument("input",        type=str,            help="GGUF format model input filename")
+    parser.add_argument("output",       type=str,            help="GGUF format model output filename")
+    parser.add_argument("addfiles",     type=str, nargs='+', help="add filenames ...")
+    parser.add_argument("--verbose",    action="store_true", help="Increase output verbosity")
+    args = parser.parse_args(None if len(sys.argv) > 1 else ["--help"])
+    logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
+
+    logger.info(f'* Loading: {args.input}')
+    reader = GGUFReader(args.input, 'r')
+    arch = get_field_data(reader, Keys.General.ARCHITECTURE)
+    endianess = get_byteorder(reader)
+
+    logger.info(f'* Writing: {args.output}')
+    writer = GGUFWriter(args.output, arch=arch, endianess=endianess)
+
+    alignment = get_field_data(reader, Keys.General.ALIGNMENT)
+    if alignment is not None:
+        logger.debug(f'Setting custom alignment: {alignment}')
+        writer.data_alignment = alignment
+
+    logger.info(f'* Adding: {args.addfiles}')
+    new_metadata = {}
+    for path in args.addfiles:
+        # add FILE_MARK to key
+        key = Keys.General.FILE_MARK + path
+        new_metadata[key] = path
+        logger.info(f'* Adding: {key} = {path}')
+    copy_with_new_metadata(reader, writer, new_metadata)
+
+
+if __name__ == '__main__':
+    main()

examples/yolo/yolo-image.cpp

@@ -88,6 +88,31 @@ bool load_image(const char *fname, yolo_image & img)
     return true;
 }
 
+bool load_image_from_memory(const char *buffer, int len, yolo_image & img)
+{
+    int w, h, c;
+    uint8_t * data = stbi_load_from_memory((uint8_t *)buffer, len, &w, &h, &c, 3);
+    if (!data) {
+        return false;
+    }
+    c = 3;
+    img.w = w;
+    img.h = h;
+    img.c = c;
+    img.data.resize(w*h*c);
+    for (int k = 0; k < c; ++k){
+        for (int j = 0; j < h; ++j){
+            for (int i = 0; i < w; ++i){
+                int dst_index = i + w*j + w*h*k;
+                int src_index = k + c*i + c*w*j;
+                img.data[dst_index] = (float)data[src_index]/255.;
+            }
+        }
+    }
+    stbi_image_free(data);
+    return true;
+}
+
 static yolo_image resize_image(const yolo_image & im, int w, int h)
 {
     yolo_image resized(w, h, im.c);
@@ -207,4 +232,4 @@ void draw_label(yolo_image & im, int row, int col, const yolo_image & label, con
             }
         }
     }
-}
+}

examples/yolo/yolo-image.h

@@ -32,6 +32,7 @@ struct yolo_image {
 };
 
 bool load_image(const char *fname, yolo_image & img);
+bool load_image_from_memory(const char *buffer, int len, yolo_image & img);
 void draw_box_width(yolo_image & a, int x1, int y1, int x2, int y2, int w, float r, float g, float b);
 yolo_image letterbox_image(const yolo_image & im, int w, int h);
 bool save_image(const yolo_image & im, const char *name, int quality);

examples/yolo/yolov3-tiny.cpp

@@ -30,6 +30,7 @@ struct yolo_model {
     int height = 416;
     std::vector<conv2d_layer> conv2d_layers;
     struct ggml_context * ctx;
+    struct gguf_context * ggufctx;
 };
 
 struct yolo_layer {
@@ -71,6 +72,7 @@ static bool load_model(const std::string & fname, yolo_model & model) {
         fprintf(stderr, "%s: gguf_init_from_file() failed\n", __func__);
         return false;
     }
+    model.ggufctx = ctx;
     model.width  = 416;
     model.height = 416;
     model.conv2d_layers.resize(13);
@@ -100,6 +102,47 @@ static bool load_model(const std::string & fname, yolo_model & model) {
     return true;
 }
 
+// istream from memory
+#include <streambuf>
+#include <istream>
+
+struct membuf : std::streambuf {
+    membuf(const char * begin, const char * end) {
+        char * b(const_cast<char *>(begin));
+        char * e(const_cast<char *>(end));
+        this->begin = b;
+        this->end = e;
+        this->setg(b, b, e);
+    }
+
+    membuf(const char * base, size_t size) {
+        char * b(const_cast<char *>(begin));
+        this->begin = b;
+        this->end = b + size;
+        this->setg(b, b, end);
+    }
+
+    virtual pos_type seekoff(off_type off, std::ios_base::seekdir dir, std::ios_base::openmode which = std::ios_base::in) override {
+        if(dir == std::ios_base::cur) {
+            gbump(off);
+        } else if(dir == std::ios_base::end) {
+            setg(begin, end + off, end);
+        } else if(dir == std::ios_base::beg) {
+            setg(begin, begin + off, end);
+        }
+
+        return gptr() - eback();
+    }
+
+    virtual pos_type seekpos(std::streampos pos, std::ios_base::openmode mode) override {
+        return seekoff(pos - pos_type(off_type(0)), std::ios_base::beg, mode);
+    }
+
+    char * begin;
+    char * end;
+};
+
+
 static bool load_labels(const char * filename, std::vector<std::string> & labels)
 {
     std::ifstream file_in(filename);
@@ -114,6 +157,27 @@ static bool load_labels(const char * filename, std::vector<std::string> & labels
     return true;
 }
 
+static bool load_labels_kv(const struct gguf_context * ctx, const char * filename, std::vector<std::string> & labels)
+{
+    int key_id = gguf_find_key(ctx, filename);
+    if (key_id == -1) {
+        return false;
+    }
+    const char * data = gguf_get_val_str(ctx, key_id);
+    uint64_t n = gguf_get_val_str_len(ctx, key_id);
+    membuf buf(data, data + n);
+    std::istream file_in(&buf);
+    if (!file_in) {
+        return false;
+    }
+    std::string line;
+    while (std::getline(file_in, line)) {
+        labels.push_back(line);
+    }
+    GGML_ASSERT(labels.size() == 80);
+    return true;
+}
+
 static bool load_alphabet(std::vector<yolo_image> & alphabet)
 {
     alphabet.resize(8 * 128);
@@ -130,6 +194,29 @@ static bool load_alphabet(std::vector<yolo_image> & alphabet)
     return true;
 }
 
+static bool load_alphabet_kv(const struct gguf_context * ctx, std::vector<yolo_image> & alphabet)
+{
+    alphabet.resize(8 * 128);
+    for (int j = 0; j < 8; j++) {
+        for (int i = 32; i < 127; i++) {
+            char fname[256];
+            sprintf(fname, "/data/labels/%d_%d.png", i, j);
+            int key_id = gguf_find_key(ctx, fname);
+            if (key_id == -1) {
+                fprintf(stderr, "Cannot find '%s'\n", fname);
+                return false;
+            }
+            const char * data = gguf_get_val_str(ctx, key_id);
+            uint64_t n = gguf_get_val_str_len(ctx, key_id);
+            if (!load_image_from_memory(data, n, alphabet[j*128 + i])) {
+                fprintf(stderr, "Cannot load '%s'\n", fname);
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
 static ggml_tensor * apply_conv2d(ggml_context * ctx, ggml_tensor * input, const conv2d_layer & layer)
 {
     struct ggml_tensor * result = ggml_conv_2d(ctx, layer.weights, input, 1, 1, layer.padding, layer.padding, 1, 1);
@@ -503,14 +590,20 @@ int main(int argc, char *argv[])
         return 1;
     }
     std::vector<std::string> labels;
-    if (!load_labels("data/coco.names", labels)) {
-        fprintf(stderr, "%s: failed to load labels from 'data/coco.names'\n", __func__);
-        return 1;
+    if (!load_labels_kv(model.ggufctx, "/data/coco.names", labels)) {
+        fprintf(stderr, "%s: failed to load labels from '/data/coco.names' in model\n", __func__);
+        if (!load_labels("data/coco.names", labels)) {
+            fprintf(stderr, "%s: failed to load labels from 'data/coco.names'\n", __func__);
+            return 1;
+        }
     }
     std::vector<yolo_image> alphabet;
-    if (!load_alphabet(alphabet)) {
-        fprintf(stderr, "%s: failed to load alphabet\n", __func__);
-        return 1;
+    if (!load_alphabet_kv(model.ggufctx, alphabet)) {
+        fprintf(stderr, "%s: failed to load alphabet from model\n", __func__);
+        if (!load_alphabet(alphabet)) {
+            fprintf(stderr, "%s: failed to load alphabet\n", __func__);
+            return 1;
+        }
     }
     const int64_t t_start_ms = ggml_time_ms();
     detect(img, model, params.thresh, labels, alphabet);