avcodec/roqvideodec: set JPEG output color range

Signed-off-by: Eric Lasota <ejlasota@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/roqvideodec.c

@@ -190,6 +190,7 @@ static av_cold int roq_decode_init(AVCodecContext *avctx)
     }
 
     avctx->pix_fmt = AV_PIX_FMT_YUVJ444P;
+    avctx->color_range = AVCOL_RANGE_JPEG;
 
     return 0;
 }