[libuvc] fix resolution

build.sh

@@ -26,10 +26,10 @@ PLATFORM="[linux|pi|android|ios]"
 
 #basic libraries
 BASIC_LIBS="libmacro libtime liblog libgevent libworkq libdict libhash libsort \
-	    librbtree libringbuffer libthread libconfig libvector libbase64 \
+	    librbtree libringbuffer libthread libvector libbase64 libmedia-io \
             libdebug libfile libuvc libmp4parser libqueue libplugin libhal libsubmask"
 FRAMEWORK_LIBS="libipc"
-NETWORK_LIBS="libskt librpc librtsp"
+NETWORK_LIBS="libskt librpc "
 
 usage()
 {
@@ -152,7 +152,8 @@ build_module()
 	*)
 		MAKE="make ARCH=${ARCH} OUTPUT=${OUTPUT} MODE=${MODE}"
 		if [[ ${ARCH} == "linux" || ${ARCH} == "pi" || ${ARCH} == "android" ]]; then
-			${MAKE} > /dev/null
+			${MAKE} 
+#> /dev/null
 		else
 			echo "${ARCH} not support now" #make -f Makefile.${ARCH} > /dev/null
 		fi

gear-lib/libuvc/v4l2.c

@@ -164,24 +164,28 @@ static void *uvc_v4l2_open(struct uvc_ctx *uvc, const char *dev, int width, int
     }
     vc->name = strdup(dev);
     vc->fd = fd;
-    vc->width = width;
-    vc->height = height;
+
     vc->channel = -1;
     vc->standard = -1;
-    vc->resolution = -1;
     vc->framerate = -1;
     vc->dv_timing = -1;
 
     if (-1 == v4l2_init(vc)) {
         printf("v4l2_init failed\n");
         goto failed;
     }
+
+    vc->resolution = v4l2_pack_tuple(width, height);
+
     if (-1 == v4l2_set_format(vc->fd, &vc->resolution, &vc->pixfmt, &vc->linesize)) {
         printf("v4l2_set_format failed\n");
         goto failed;
     }
 
     v4l2_unpack_tuple(&vc->width, &vc->height, vc->resolution);
+    if (vc->width != width || vc->height != height) {
+        printf("v4l2 format is forced to %dx%d\n", vc->width, vc->height);
+    }
 
     /* set framerate */
     if (v4l2_set_framerate(vc->fd, &vc->framerate) < 0) {