feat: add more parameters to /v1/models/start (#1545)

Author: vansangpfiev

engine/controllers/models.cc

@@ -370,6 +370,20 @@ void Models::StartModel(
     params_override.cache_type = o.asString();
   }
 
+  if (auto& o = (*(req->getJsonObject()))["mmproj"]; !o.isNull()) {
+    params_override.mmproj = o.asString();
+  }
+
+  // Support both llama_model_path and model_path for backward compatible
+  // model_path has higher priority
+  if (auto& o = (*(req->getJsonObject()))["llama_model_path"]; !o.isNull()) {
+    params_override.model_path = o.asString();
+  }
+
+  if (auto& o = (*(req->getJsonObject()))["model_path"]; !o.isNull()) {
+    params_override.model_path = o.asString();
+  }
+
   auto model_entry = model_service_->GetDownloadedModel(model_handle);
   if (!model_entry.has_value()) {
     Json::Value ret;

engine/services/model_service.cc

@@ -622,6 +622,8 @@ cpp::result<bool, std::string> ModelService::StartModel(
     ASSIGN_IF_PRESENT(json_data, params_override, n_parallel);
     ASSIGN_IF_PRESENT(json_data, params_override, ctx_len);
     ASSIGN_IF_PRESENT(json_data, params_override, cache_type);
+    ASSIGN_IF_PRESENT(json_data, params_override, mmproj);
+    ASSIGN_IF_PRESENT(json_data, params_override, model_path);
 #undef ASSIGN_IF_PRESENT;
 
     CTL_INF(json_data.toStyledString());

engine/services/model_service.h

@@ -14,6 +14,8 @@ std::optional<int> n_parallel;
 std::optional<int> ctx_len;
 std::optional<std::string> custom_prompt_template;
 std::optional<std::string> cache_type;
+std::optional<std::string> mmproj;
+std::optional<std::string> model_path;
 };
 class ModelService {
  public: