Fixes unsafe 'switch_audio' command with set_property() call.

Without it, MPlayer segv trying to dereference NULL demuxer.
Patch by Mathieu Schroeter (mathieu dot schroeter at gamesover dot ch)



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27411 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 2 insertions, 0 deletions

diff --git a/command.c b/command.c
index b18080b6a4..1f9bf1e4f5 100644
--- a/command.c
+++ b/command.c
@@ -835,6 +835,8 @@ static int mp_property_audio(m_option_t * prop, int action, void *arg,
 
     case M_PROPERTY_STEP_UP:
     case M_PROPERTY_SET:
+	if (!mpctx->demuxer)
+	    return M_PROPERTY_UNAVAILABLE;
 	if (action == M_PROPERTY_SET && arg)
 	    tmp = *((int *) arg);
 	else