script to convert amass to bvh

tests/convert_amass_mesh_to_bvh.py

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+import torch
+import numpy as np
+from human_body_prior.body_model.body_model import BodyModel
+from fairmotion.core import motion as motion_class
+from fairmotion.ops import conversions
+from fairmotion.utils import 
+from fairmotion.data import amass,bvh
+
+def load_body_model(bm_path, num_betas=10, model_type="smplh"):
+    comp_device = torch.device("cpu")
+    bm = BodyModel(
+        bm_fname=bm_path, 
+        num_betas=num_betas, 
+        # model_type=model_type
+    ).to(comp_device)
+    return bm
+
+file='./*.npz'#TODO --- file from amass
+bm_path = '../smplh/male/model.npz'
+num_betas=10 #TODO --- set tp 16 with hand but this tool doesn't support hand
+model_type='smplh'
+bm = load_body_model(bm_path,num_betas,model_type)
+
+motion = amass.load(file,bm,bm_path,model_type)
+bvh.save(motion,filename='./result.bvh')
+