timeside/decoder/file.py: use mimetypes to guess mime_type

diff --git a/timeside/decoder/file.py b/timeside/decoder/file.py
index 97160f785f259fd7d3d6feaf76980eeba55f0207..4ecfdb82c1eda608a4fcf2fd7f4ef1034dc17b64 100644 (file)
--- a/timeside/decoder/file.py
+++ b/timeside/decoder/file.py
@@ -233,7 +233,8 @@ class FileDecoder(Decoder):
                 self.input_width = caps[0]["width"]
             else:
                 self.input_width = caps[0]["depth"]
-            self.mimetype = caps.to_string().split(',')[0]
+            import mimetypes
+            self.mimetype = mimetypes.guess_type(self.uri)[0]
 
         self.discovered = True
         self.discovered_cond.notify()