From ed357ef40484ef152c0fbfddb8b8fafe59ee2a0e Mon Sep 17 00:00:00 2001
From: Ricardo Constantino <wiiaboo@gmail.com>
Date: Thu, 24 Nov 2016 02:45:25 +0000
Subject: [PATCH] mpv: use property expansion fallbacks for deprecated length

This allows using both length and duration. mpv will fallback to
duration if length isn't available. If neither are available, it
falls back to 0 which doesn't break Syncplay and happens to add
support for livestreams.
---
 syncplay/constants.py   | 2 +-
 syncplay/players/mpv.py | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/syncplay/constants.py b/syncplay/constants.py
index 544f585..2332f81 100644
--- a/syncplay/constants.py
+++ b/syncplay/constants.py
@@ -157,7 +157,7 @@ USERLIST_GUI_FILENAME_COLUMN = 3
 MPLAYER_SLAVE_ARGS = ['-slave', '--hr-seek=always', '-nomsgcolor', '-msglevel', 'all=1:global=4:cplayer=4', '-af-add', 'scaletempo']
 MPV_ARGS = ['--force-window', '--idle', '--hr-seek=always', '--keep-open']
 MPV_SLAVE_ARGS = ['--msg-level=all=error,cplayer=info,term-msg=info', '--input-terminal=no', '--input-file=/dev/stdin']
-MPV_SLAVE_ARGS_NEW = ['--term-playing-msg=<SyncplayUpdateFile>\nANS_filename=${filename}\nANS_length=${=length}\nANS_path=${path}\n</SyncplayUpdateFile>', '--terminal=yes']
+MPV_SLAVE_ARGS_NEW = ['--term-playing-msg=<SyncplayUpdateFile>\nANS_filename=${filename}\nANS_length=${=length:${=duration:0}}\nANS_path=${path}\n</SyncplayUpdateFile>', '--terminal=yes']
 MPV_NEW_VERSION = False
 VLC_SLAVE_ARGS = ['--extraintf=luaintf', '--lua-intf=syncplay', '--no-quiet', '--no-input-fast-seek',
                   '--play-and-pause', '--start-time=0']
diff --git a/syncplay/players/mpv.py b/syncplay/players/mpv.py
index d207db2..0278876 100644
--- a/syncplay/players/mpv.py
+++ b/syncplay/players/mpv.py
@@ -120,9 +120,11 @@ class NewMpvPlayer(OldMpvPlayer):
             self.lastMPVPositionUpdate = time.time()
 
     def _getProperty(self, property_):
-        floatProperties = ['length','time-pos']
+        floatProperties = ['time-pos']
         if property_ in floatProperties:
             propertyID = u"={}".format(property_)
+        elif property_ == 'length':
+            propertyID = u'=length:${=duration:0}'
         else:
             propertyID = property_
         self._listener.sendLine(u"print_text ""ANS_{}=${{{}}}""".format(property_, propertyID))