Prediction: fix timestamp and modify num dump feature for frame env

modules/prediction/evaluator/evaluator_manager.cc

@@ -218,7 +218,7 @@ void EvaluatorManager::BuildCurrentFrameEnv() {
       const Feature& obstacle_feature = obstacle->feature(i);
       Feature feature;
       feature.set_id(obstacle_feature.id());
-      feature.set_timestamp(obstacles_container->timestamp());
+      feature.set_timestamp(obstacle_feature.timestamp());
       feature.mutable_position()->CopyFrom(obstacle_feature.position());
       feature.set_theta(obstacle_feature.velocity_heading());
       if (obstacle_feature.id() != -1) {

modules/tools/prediction/mlp_train/scripts/records_to_frame_env.sh

@@ -37,4 +37,5 @@ fi
     --map_dir=/apollo/modules/map/data/${MAP_DIR} \
     --prediction_offline_mode=4 \
     --prediction_offline_bags=${SRC_DIR} \
-    --prediction_data_dir=${TARGET_DIR}
+    --prediction_data_dir=${TARGET_DIR} \
+    --max_num_dump_feature=1000