X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Futils.py;h=e2631dccda7a13679da2280b1e8d38301b7ffe47;hb=e765ed3a9c4ba52d4709a4a696881eae3401efa0;hp=4358137a0ae7f1d7367d965949997381b47e613f;hpb=d305dd73a3d6927f0a2c63d08662a183fa173833;p=youtube-dl

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 4358137a0..e2631dccd 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -304,6 +304,8 @@ def sanitize_filename(s, restricted=False, is_id=False):
         # Common case of "Foreign band name - English song title"
         if restricted and result.startswith('-_'):
             result = result[2:]
+        if result.startswith('-'):
+            result = '_' + result[len('-'):]
         if not result:
             result = '_'
     return result
@@ -900,8 +902,8 @@ def _windows_write_string(s, out):
     def not_a_console(handle):
         if handle == INVALID_HANDLE_VALUE or handle is None:
             return True
-        return ((GetFileType(handle) & ~FILE_TYPE_REMOTE) != FILE_TYPE_CHAR
-                or GetConsoleMode(handle, ctypes.byref(ctypes.wintypes.DWORD())) == 0)
+        return ((GetFileType(handle) & ~FILE_TYPE_REMOTE) != FILE_TYPE_CHAR or
+                GetConsoleMode(handle, ctypes.byref(ctypes.wintypes.DWORD())) == 0)
 
     if not_a_console(h):
         return False
@@ -1616,6 +1618,15 @@ def args_to_str(args):
     return ' '.join(shlex_quote(a) for a in args)
 
 
+def mimetype2ext(mt):
+    _, _, res = mt.rpartition('/')
+
+    return {
+        'x-ms-wmv': 'wmv',
+        'x-mp4-fragmented': 'mp4',
+    }.get(res, res)
+
+
 def urlhandle_detect_ext(url_handle):
     try:
         url_handle.headers
@@ -1631,7 +1642,7 @@ def urlhandle_detect_ext(url_handle):
             if e:
                 return e
 
-    return getheader('Content-Type').split("/")[1]
+    return mimetype2ext(getheader('Content-Type'))
 
 
 def age_restricted(content_limit, age_limit):