1 files changed, 47 insertions, 7 deletions

diff --git a/abs/core-testing/mplayer-wrapper/mplayer-wrapper.pl b/abs/core-testing/mplayer-wrapper/mplayer-wrapper.pl
index 86c40c6..da0e838 100755
--- a/abs/core-testing/mplayer-wrapper/mplayer-wrapper.pl
+++ b/abs/core-testing/mplayer-wrapper/mplayer-wrapper.pl
@@ -97,7 +97,39 @@ sub dynamic_parameters () {
     my($mediafile)=@_;
     my @parameters = ();
     my $codec="";
+    my %vdpau_supported_modes=();
 
+    # See if the GPU and driver support vdpau for GPU-based accelerated decoding
+    my $command="vdpinfo |";
+    # On supported hardware, vdpinfo produces relevant results that look something like this (see
+    # http://www.phoronix.com/forums/showthread.php?t=14493 for additional details, or run
+    # vdpinfo on vdpau-capable hardware yourself):
+    #
+    #MPEG1             0  2  4096  4096
+    #MPEG2_SIMPLE      3  2  4096  4096
+    #MPEG2_MAIN        3  2  4096  4096
+    #H264_MAIN        41  4  4096  4096
+    #H264_HIGH        41  4  4096  4096
+    
+    my $grabbing_modes=0;
+    open(SHELL, $command);
+    while (<SHELL>) {
+	chop;
+	if (m/Decoder Capabilities/gi) {
+	    $grabbing_modes=1;
+	    #print "*** MODES START NOW"
+	} elsif (m/Output Surface/gi) {
+	    $grabbing_modes=0;
+	} elsif ($grabbing_modes) {
+	    if (m/[A-Z]+[0-9]+/g) {
+		s/(_.*)//g;
+		#print "*** GRABBED MODE $_\n";
+		$vdpau_supported_modes{$_} = 1;
+	    }
+	}
+    }
+    close(SHELL);
+    
     # figure out what codec the video uses
     my $command="mplayer -identify -frames 0 \"$mediafile\" | grep ID_VIDEO_CODEC | cut -c 16- |";
     open(SHELL, $command);
@@ -109,30 +141,38 @@ sub dynamic_parameters () {
     close(SHELL);
 
     # We should use vdpau if it's available and helps with the codec we need to decode.
-    # ??? NOTE: At the moment, vdpau capability is assumed, not verified.
     if ($codec eq "ffh264") { # h.264
-	push(@parameters, "-vo vdpau");
-	push(@parameters, "-vc ffh264vdpau");
+	if ($vdpau_supported_modes{"H264"}) {
+	    push(@parameters, "-vo vdpau");
+	    push(@parameters, "-vc ffh264vdpau");
+	}
     } elsif ($codec eq "ffmpeg2") { # MPEG2
-	push(@parameters, "-vo vdpau");
-	push(@parameters, "-vc ffmpeg12vdpau");
+	if ($vdpau_supported_modes{"MPEG2"}) {
+	    push(@parameters, "-vo vdpau");
+	    push(@parameters, "-vc ffmpeg12vdpau");
+	}
 
+	# ??? although MPEG1 is rare, it seems as if it should work with -vc ffmpeg12vdpau as well
+	
 	# problems have been reported with WMV3 support
 	
 #    } elsif ($codec eq "ffwmv3") { # WMV3
+#	if ($vdpau_supported) {
 #	push(@parameters, "-vo vdpau");
 #	push(@parameters, "-vc ffwmv3vdpau");
-
+#    }
 	# problems have been reported with WVC1 support
 	
 #    } elsif ($codec eq "ffvc1") { # WVC1
+#	if ($vdpau_supported) {
 #	push(@parameters, "-vo vdpau");
 #	push(@parameters, "-vc ffvc1vdpau");
+#    }
 
     } else {
 	push(@parameters, "-vo xv,x11,");
 	push(@parameters, "-vc ,");
-	push(@parameters, "-vf pp=lb,");
+	push(@parameters, "-vf pp=lb,"); # doesn't actually work with vdpau, but doesn't break anything
     }
     return(@parameters);
 }