Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Autodetect big-endian tiff files.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/img2dec.c

@@ -652,7 +652,8 @@ static int tiff_probe(AVProbeData *p)
 {
     const uint8_t *b = p->buf;
 
-    if (AV_RB32(b) == 0x49492a00)
+    if (AV_RB32(b) == 0x49492a00 ||
+        AV_RB32(b) == 0x4D4D002a)
         return AVPROBE_SCORE_EXTENSION + 1;
     return 0;
 }