fix(acestep-cpp): resolve relative model paths in options

backend/go/acestep-cpp/acestepcpp_test.go

@@ -106,12 +106,17 @@ func TestLoadModel(t *testing.T) {
 	defer conn.Close()
 
 	client := pb.NewBackendClient(conn)
+
+	// Get base directory from main model file for relative paths
+	mainModelPath := filepath.Join(modelDir, "acestep-5Hz-lm-0.6B-Q8_0.gguf")
+	baseDir := filepath.Dir(mainModelPath)
+
 	resp, err := client.LoadModel(context.Background(), &pb.ModelOptions{
-		ModelFile: filepath.Join(modelDir, "acestep-5Hz-lm-0.6B-Q8_0.gguf"),
+		ModelFile: mainModelPath,
 		Options: []string{
-			"text_encoder_model:" + filepath.Join(modelDir, "Qwen3-Embedding-0.6B-Q8_0.gguf"),
-			"dit_model:" + filepath.Join(modelDir, "acestep-v15-turbo-Q8_0.gguf"),
-			"vae_model:" + filepath.Join(modelDir, "vae-BF16.gguf"),
+			baseDir + "/text_encoder_model:Qwen3-Embedding-0.6B-Q8_0.gguf",
+			baseDir + "/dit_model:acestep-v15-turbo-Q8_0.gguf",
+			baseDir + "/vae_model:vae-BF16.gguf",
 		},
 	})
 	if err != nil {
@@ -141,13 +146,17 @@ func TestSoundGeneration(t *testing.T) {
 
 	client := pb.NewBackendClient(conn)
 
+	// Get base directory from main model file for relative paths
+	mainModelPath := filepath.Join(modelDir, "acestep-5Hz-lm-0.6B-Q8_0.gguf")
+	baseDir := filepath.Dir(mainModelPath)
+
 	// Load models
 	loadResp, err := client.LoadModel(context.Background(), &pb.ModelOptions{
-		ModelFile: filepath.Join(modelDir, "acestep-5Hz-lm-0.6B-Q8_0.gguf"),
+		ModelFile: mainModelPath,
 		Options: []string{
-			"text_encoder_model:" + filepath.Join(modelDir, "Qwen3-Embedding-0.6B-Q8_0.gguf"),
-			"dit_model:" + filepath.Join(modelDir, "acestep-v15-turbo-Q8_0.gguf"),
-			"vae_model:" + filepath.Join(modelDir, "vae-BF16.gguf"),
+			baseDir + "/text_encoder_model:Qwen3-Embedding-0.6B-Q8_0.gguf",
+			baseDir + "/dit_model:acestep-v15-turbo-Q8_0.gguf",
+			baseDir + "/vae_model:vae-BF16.gguf",
 		},
 	})
 	if err != nil {
@@ -160,7 +169,7 @@ func TestSoundGeneration(t *testing.T) {
 	// Generate music
 	duration := float32(10.0)
 	temperature := float32(0.85)
-	bpm := int32(120)
+	bpm := float32(120.0)
 	caption := "A cheerful electronic dance track"
 	timesig := "4/4"
 

backend/go/acestep-cpp/goacestepcpp.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"strings"
 
 	"github.com/mudler/LocalAI/pkg/grpc/base"
@@ -11,7 +12,7 @@ import (
 
 var (
 	CppLoadModel    func(lmModelPath, textEncoderPath, ditModelPath, vaeModelPath string) int
-	CppGenerateMusic func(caption, lyrics string, bpm int, keyscale, timesignature string, duration, temperature float32, instrumental bool, seed int, dst string, threads int) int
+	CppGenerateMusic func(caption, lyrics string, bpm float32, keyscale, timesignature string, duration, temperature float32, instrumental bool, seed int, dst string, threads int) int
 )
 
 type AceStepCpp struct {
@@ -22,6 +23,9 @@ func (a *AceStepCpp) Load(opts *pb.ModelOptions) error {
 	// ModelFile is the LM model path
 	lmModel := opts.ModelFile
 
+	// Get the base directory from ModelFile for resolving relative paths
+	baseDir := filepath.Dir(lmModel)
+
 	var textEncoderModel, ditModel, vaeModel string
 
 	for _, oo := range opts.Options {
@@ -52,6 +56,29 @@ func (a *AceStepCpp) Load(opts *pb.ModelOptions) error {
 		return fmt.Errorf("vae_model option is required")
 	}
 
+	// Resolve relative paths to the base directory
+	// If the path doesn't start with "/" it's relative
+	if !filepath.IsAbs(textEncoderModel) {
+		textEncoderModel = filepath.Join(baseDir, textEncoderModel)
+	}
+	if !filepath.IsAbs(ditModel) {
+		ditModel = filepath.Join(baseDir, ditModel)
+	}
+	if !filepath.IsAbs(vaeModel) {
+		vaeModel = filepath.Join(baseDir, vaeModel)
+	}
+
+	// Also resolve the lmModel if it's relative
+	if !filepath.IsAbs(lmModel) {
+		lmModel = filepath.Join(baseDir, lmModel)
+	}
+
+	fmt.Fprintf(os.Stderr, "[acestep-cpp] Resolved paths:\n")
+	fmt.Fprintf(os.Stderr, "  LM Model: %s\n", lmModel)
+	fmt.Fprintf(os.Stderr, "  Text Encoder: %s\n", textEncoderModel)
+	fmt.Fprintf(os.Stderr, "  DiT Model: %s\n", ditModel)
+	fmt.Fprintf(os.Stderr, "  VAE Model: %s\n", vaeModel)
+
 	if ret := CppLoadModel(lmModel, textEncoderModel, ditModel, vaeModel); ret != 0 {
 		return fmt.Errorf("failed to load acestep models (error code: %d)", ret)
 	}
@@ -74,7 +101,7 @@ func (a *AceStepCpp) SoundGeneration(req *pb.SoundGenerationRequest) error {
 	seed := 42
 	threads := 4
 
-	if ret := CppGenerateMusic(caption, lyrics, bpm, keyscale, timesignature, duration, temperature, instrumental, seed, req.GetDst(), threads); ret != 0 {
+	if ret := CppGenerateMusic(caption, lyrics, float32(bpm), keyscale, timesignature, duration, temperature, instrumental, seed, req.GetDst(), threads); ret != 0 {
 		return fmt.Errorf("failed to generate music (error code: %d)", ret)
 	}