feat(video-gen): add endpoint for video generation (#5247)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

core/backend/video.go

@@ -0,0 +1,36 @@
+package backend
+
+import (
+	"github.com/mudler/LocalAI/core/config"
+
+	"github.com/mudler/LocalAI/pkg/grpc/proto"
+	model "github.com/mudler/LocalAI/pkg/model"
+)
+
+func VideoGeneration(height, width int32, prompt, startImage, endImage, dst string, loader *model.ModelLoader, backendConfig config.BackendConfig, appConfig *config.ApplicationConfig) (func() error, error) {
+
+	opts := ModelOptions(backendConfig, appConfig)
+	inferenceModel, err := loader.Load(
+		opts...,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer loader.Close()
+
+	fn := func() error {
+		_, err := inferenceModel.GenerateVideo(
+			appConfig.Context,
+			&proto.GenerateVideoRequest{
+				Height:     height,
+				Width:      width,
+				Prompt:     prompt,
+				StartImage: startImage,
+				EndImage:   endImage,
+				Dst:        dst,
+			})
+		return err
+	}
+
+	return fn, nil
+}