avformat/mpeg: increase score for short mpeg-ps by 1

Fixes Ticket 3855
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5109ce20)

Conflicts:
	libavformat/mpeg.c

libavformat/mpeg.c

@@ -91,16 +91,20 @@ static int mpegps_probe(AVProbeData *p)
     if(vid+audio > invalid+1)     /* invalid VDR files nd short PES streams */
         score = AVPROBE_SCORE_EXTENSION / 2;
 
-    if(sys>invalid && sys*9 <= pspack*10)
-        return (audio > 12 || vid > 3 || pspack > 2) ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
-    if(pspack > invalid && (priv1+vid+audio)*10 >= pspack*9)
-        return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
-    if((!!vid ^ !!audio) && (audio > 4 || vid > 1) && !sys && !pspack && p->buf_size>2048 && vid + audio > invalid) /* PES stream */
-        return (audio > 12 || vid > 3 + 2*invalid) ? AVPROBE_SCORE_EXTENSION + 2 : AVPROBE_SCORE_EXTENSION / 2;
-
-    //02-Penguin.flac has sys:0 priv1:0 pspack:0 vid:0 audio:1
-    //mp3_misidentified_2.mp3 has sys:0 priv1:0 pspack:0 vid:0 audio:6
-    //Have\ Yourself\ a\ Merry\ Little\ Christmas.mp3 0 0 0 5 0 1 len:21618
+    if (sys > invalid && sys * 9 <= pspack * 10)
+        return (audio > 12 || vid > 3 || pspack > 2) ? AVPROBE_SCORE_EXTENSION + 2
+                                                     : AVPROBE_SCORE_EXTENSION / 2 + 1; // 1 more than .mpg
+    if (pspack > invalid && (priv1 + vid + audio) * 10 >= pspack * 9)
+        return pspack > 2 ? AVPROBE_SCORE_EXTENSION + 2
+                          : AVPROBE_SCORE_EXTENSION / 2; // 1 more than .mpg
+    if ((!!vid ^ !!audio) && (audio > 4 || vid > 1) && !sys &&
+        !pspack && p->buf_size > 2048 && vid + audio > invalid) /* PES stream */
+        return (audio > 12 || vid > 3 + 2 * invalid) ? AVPROBE_SCORE_EXTENSION + 2
+                                                     : AVPROBE_SCORE_EXTENSION / 2;
+
+    // 02-Penguin.flac has sys:0 priv1:0 pspack:0 vid:0 audio:1
+    // mp3_misidentified_2.mp3 has sys:0 priv1:0 pspack:0 vid:0 audio:6
+    // Have\ Yourself\ a\ Merry\ Little\ Christmas.mp3 0 0 0 5 0 1 len:21618
     return score;
 }