Add support for grayscale MJPEG streams sent by Axis cameras such as the

207MW (http://www.axis.com/products/cam_207mw/).
patch by Sam Hocevar, sam+ffmpeg zoy org

Originally committed as revision 9913 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mjpegdec.c

@@ -298,6 +298,9 @@ int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
         else
             s->avctx->pix_fmt = PIX_FMT_GRAY8;
         break;
+    case 0x110000:
+        s->avctx->pix_fmt = PIX_FMT_GRAY8;
+        break;
     case 0x121111:
         s->avctx->pix_fmt = s->cs_itu601 ? PIX_FMT_YUV440P : PIX_FMT_YUVJ440P;
         break;