From 0563c707058b31bee9b7f30d06a94cc6933c88f5 Mon Sep 17 00:00:00 2001
From: Ian <ignaz.k@live.de>
Date: Mon, 1 Aug 2022 23:46:25 +0200
Subject: [PATCH] Add TorchScript-Lite export (#387)

* TorchScript-Lite export

* forgot the import
---
 export.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/export.py b/export.py
index c2d498d6..2b27b4ad 100644
--- a/export.py
+++ b/export.py
@@ -6,6 +6,7 @@ sys.path.append('./')  # to run '$ python *.py' files in subdirectories
 
 import torch
 import torch.nn as nn
+from torch.utils.mobile_optimizer import optimize_for_mobile
 
 import models
 from models.experimental import attempt_load, End2End
@@ -75,6 +76,17 @@ if __name__ == '__main__':
     except Exception as e:
         print('TorchScript export failure: %s' % e)
 
+    # TorchScript-Lite export
+    try:
+        print('\nStarting TorchScript-Lite export with torch %s...' % torch.__version__)
+        f = opt.weights.replace('.pt', '.torchscript.ptl')  # filename
+        ts = torch.jit.trace(model, img, strict=False)
+        ts = optimize_for_mobile(ts)
+        ts._save_for_lite_interpreter(f)
+        print('TorchScript-Lite export success, saved as %s' % f)
+    except Exception as e:
+        print('TorchScript-Lite export failure: %s' % e)
+
     # ONNX export
     try:
         import onnx