fixed exception handling

tikuma-lsuhsc · tikuma-lsuhsc · commit 1a4463602cbe · 2022-01-21T08:58:48.000-06:00
diff --git a/src/ffmpegio/transcode.py b/src/ffmpegio/transcode.py
@@ -46,5 +46,8 @@ def transcode(input_url, output_url, progress=None, show_log=None, **options):
         )
         if pout.returncode:
             assert False
-    except:
-        raise FFmpegError(pout.stderr, show_log)
+    except Exception as e:
+        if pout:
+            raise FFmpegError(pout.stderr, show_log)
+        else:
+            raise e
diff --git a/tests/test_transcode.py b/tests/test_transcode.py
@@ -27,5 +27,14 @@ def test_transcode():
         #     print(f.read())
 
 
+def test_transcode_vf():
+    url = "tests/assets/testmulti-1m.mp4"
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        # print(probe.audio_streams_basic(url))
+        out_url = path.join(tmpdirname, path.basename(url))
+        transcode(url, out_url, t='0.1', vf="scale=in_w:in_h*9/10", show_log=True)
+        assert path.isfile(out_url)
+
+
 if __name__ == "__main__":
     test_transcode()
