Added Quadrox format

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavformat/riff.c

@@ -181,6 +181,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
     { AV_CODEC_ID_MJPEG,        MKTAG('L', 'J', 'P', 'G') },
     { AV_CODEC_ID_MJPEG,        MKTAG('d', 'm', 'b', '1') },
     { AV_CODEC_ID_MJPEG,        MKTAG('m', 'j', 'p', 'a') },
+    { AV_CODEC_ID_MJPEG,        MKTAG('J', 'R', '2', '4') }, /* Quadrox Mjpeg */
     { AV_CODEC_ID_LJPEG,        MKTAG('L', 'J', 'P', 'G') },
     /* Pegasus lossless JPEG */
     { AV_CODEC_ID_MJPEG,        MKTAG('J', 'P', 'G', 'L') },