max minimum value on max_memory

Former-commit-id: 49e60b3671

opendm/cropper.py

@@ -42,7 +42,7 @@ class Cropper:
                 'geotiffInput': original_geotiff,
                 'geotiffOutput': geotiff_path,
                 'options': ' '.join(map(lambda k: '-co {}={}'.format(k, gdal_options[k]), gdal_options)),
-                'max_memory': (100 - virtual_memory().percent) / 2
+                'max_memory': max(5, (100 - virtual_memory().percent) / 2)
             }
 
             run('gdalwarp -cutline {shapefile_path} '

scripts/odm_orthophoto.py

@@ -111,7 +111,7 @@ class ODMOrthoPhotoCell(ecto.Cell):
                     'png': tree.odm_orthophoto_file,
                     'tiff': tree.odm_orthophoto_tif,
                     'log': tree.odm_orthophoto_tif_log,
-                    'max_memory': (100 - virtual_memory().percent) / 2
+                    'max_memory': max(5, (100 - virtual_memory().percent) / 2)
                 }
 
                 system.run('gdal_translate -a_ullr {ulx} {uly} {lrx} {lry} '