diff --git a/spa/examples/local-libcamera.c b/spa/examples/local-libcamera.c
index 2a4d8283d..d6e9f80d9 100644
--- a/spa/examples/local-libcamera.c
+++ b/spa/examples/local-libcamera.c
@@ -43,7 +43,7 @@
 static SPA_LOG_IMPL(default_log);
 
 #define MAX_BUFFERS     8
-
+#define LOOP_TIMEOUT_MS 100
 #define USE_BUFFER 		false
 
 struct buffer {
@@ -401,57 +401,33 @@ static int negotiate_formats(struct data *data)
 	return 0;
 }
 
-static void *loop(void *user_data)
+static void loop(struct data *data)
 {
-	struct data *data = user_data;
-
-	printf("enter thread\n");
-    spa_loop_control_enter(data->control);
-
-    while (data->running) {
-		spa_loop_control_iterate(data->control, -1);
-	}
-
-	printf("leave thread\n");
-    spa_loop_control_leave(data->control);
-	return NULL;
-}
-
-static void run_async_source(struct data *data)
-{
-	int res, err;
+	int res;
 	struct spa_command cmd;
 	SDL_Event event;
-	bool running = true;
 
 	printf("starting...\n\n");
 	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Start);
 	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
 		printf("got error %d\n", res);
 
-	spa_loop_control_leave(data->control);
-
 	data->running = true;
-	if ((err = pthread_create(&data->thread, NULL, loop, data)) != 0) {
-		printf("can't create thread: %d %s", err, strerror(err));
-		data->running = false;
-	}
 
-	while (running && SDL_WaitEvent(&event)) {
-		switch (event.type) {
-		case SDL_QUIT:
-			running = false;
-			break;
+	while (data->running) {
+		// must be called from the thread that created the renderer
+		while (SDL_PollEvent(&event)) {
+			switch (event.type) {
+			case SDL_QUIT:
+				data->running = false;
+				break;
+			}
 		}
-	}
 
-	if (data->running) {
-		data->running = false;
-		pthread_join(data->thread, NULL);
+		// small timeout to make sure we don't starve the SDL loop
+		spa_loop_control_iterate(data->control, LOOP_TIMEOUT_MS);
 	}
 
-	spa_loop_control_enter(data->control);
-
 	printf("pausing...\n\n");
 	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Pause);
 	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
@@ -531,7 +507,7 @@ int main(int argc, char *argv[])
 	}
 
 	spa_loop_control_enter(data.control);
-	run_async_source(&data);
+	loop(&data);
 	spa_loop_control_leave(data.control);
 
 	SDL_DestroyRenderer(data.renderer);
diff --git a/spa/examples/local-v4l2.c b/spa/examples/local-v4l2.c
index 4e7000da3..46f224ee3 100644
--- a/spa/examples/local-v4l2.c
+++ b/spa/examples/local-v4l2.c
@@ -39,6 +39,7 @@
 static SPA_LOG_IMPL(default_log);
 
 #define MAX_BUFFERS     8
+#define LOOP_TIMEOUT_MS 100
 
 struct buffer {
 	struct spa_buffer buffer;
@@ -396,56 +397,34 @@ static int negotiate_formats(struct data *data)
 	return 0;
 }
 
-static void *loop(void *user_data)
+static void loop(struct data *data)
 {
-	struct data *data = user_data;
-
-	printf("enter thread\n");
-        spa_loop_control_enter(data->control);
-
-	while (data->running) {
-		spa_loop_control_iterate(data->control, -1);
-	}
-
-	printf("leave thread\n");
-        spa_loop_control_leave(data->control);
-	return NULL;
-}
-
-static void run_async_source(struct data *data)
-{
-	int res, err;
+	int res;
 	struct spa_command cmd;
 	SDL_Event event;
-	bool running = true;
 
+	printf("starting...\n\n");
 	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Start);
 	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
 		printf("got error %d\n", res);
 
-	spa_loop_control_leave(data->control);
-
 	data->running = true;
-	if ((err = pthread_create(&data->thread, NULL, loop, data)) != 0) {
-		printf("can't create thread: %d %s", err, strerror(err));
-		data->running = false;
-	}
 
-	while (running && SDL_WaitEvent(&event)) {
-		switch (event.type) {
-		case SDL_QUIT:
-			running = false;
-			break;
+	while (data->running) {
+		// must be called from the thread that created the renderer
+		while (SDL_PollEvent(&event)) {
+			switch (event.type) {
+			case SDL_QUIT:
+				data->running = false;
+				break;
+			}
 		}
+
+		// small timeout to make sure we don't starve the SDL loop
+		spa_loop_control_iterate(data->control, LOOP_TIMEOUT_MS);
 	}
 
-	if (data->running) {
-		data->running = false;
-		pthread_join(data->thread, NULL);
-	}
-
-	spa_loop_control_enter(data->control);
-
+	printf("pausing...\n\n");
 	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Pause);
 	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
 		printf("got error %d\n", res);
@@ -524,7 +503,7 @@ int main(int argc, char *argv[])
 	}
 
 	spa_loop_control_enter(data.control);
-	run_async_source(&data);
+	loop(&data);
 	spa_loop_control_leave(data.control);
 
 	SDL_DestroyRenderer(data.renderer);
diff --git a/spa/examples/local-videotestsrc.c b/spa/examples/local-videotestsrc.c
new file mode 100644
index 000000000..3743e24db
--- /dev/null
+++ b/spa/examples/local-videotestsrc.c
@@ -0,0 +1,535 @@
+/* Spa */
+/* SPDX-FileCopyrightText: Copyright © 2020 Collabora Ltd. */
+/*                         @author Raghavendra Rao Sidlagatta <raghavendra.rao@collabora.com> */
+/* SPDX-License-Identifier: MIT */
+
+/*
+ [title]
+ Example using libspa-videotestsrc, with only \ref api_spa
+ [title]
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dlfcn.h>
+#include <poll.h>
+#include <pthread.h>
+#include <errno.h>
+#include <sys/mman.h>
+
+#include <SDL2/SDL.h>
+
+#include <spa/support/plugin.h>
+#include <spa/utils/names.h>
+#include <spa/utils/result.h>
+#include <spa/utils/string.h>
+#include <spa/support/log-impl.h>
+#include <spa/support/loop.h>
+#include <spa/node/node.h>
+#include <spa/node/io.h>
+#include <spa/node/utils.h>
+#include <spa/param/param.h>
+#include <spa/param/props.h>
+#include <spa/param/video/format-utils.h>
+#include <spa/debug/pod.h>
+
+#define WIDTH   640
+#define HEIGHT  480
+
+static SPA_LOG_IMPL(default_log);
+
+#define MAX_BUFFERS     8
+#define LOOP_TIMEOUT_MS 100
+#define USE_BUFFER 		true
+
+struct buffer {
+	struct spa_buffer buffer;
+	struct spa_meta metas[1];
+	struct spa_meta_header header;
+	struct spa_data datas[1];
+	struct spa_chunk chunks[1];
+	SDL_Texture *texture;
+};
+
+struct data {
+	const char *plugin_dir;
+	struct spa_log *log;
+	struct spa_system *system;
+	struct spa_loop *loop;
+	struct spa_loop_control *control;
+	struct spa_loop_utils *loop_utils;
+
+	struct spa_support support[6];
+	uint32_t n_support;
+
+	struct spa_node *source;
+	struct spa_hook listener;
+	struct spa_io_buffers source_output[1];
+
+	SDL_Renderer *renderer;
+	SDL_Window *window;
+	SDL_Texture *texture;
+
+	bool use_buffer;
+
+	bool running;
+	pthread_t thread;
+
+	struct spa_buffer *bp[MAX_BUFFERS];
+	struct buffer buffers[MAX_BUFFERS];
+	unsigned int n_buffers;
+};
+
+static int load_handle(struct data *data, struct spa_handle **handle, const char *lib, const char *name)
+{
+	int res;
+	void *hnd;
+	spa_handle_factory_enum_func_t enum_func;
+	uint32_t i;
+
+	char *path = NULL;
+
+	if ((path = spa_aprintf("%s/%s", data->plugin_dir, lib)) == NULL) {
+		return -ENOMEM;
+	}
+	if ((hnd = dlopen(path, RTLD_NOW)) == NULL) {
+		printf("can't load %s: %s\n", path, dlerror());
+		free(path);
+		return -errno;
+	}
+	free(path);
+	if ((enum_func = dlsym(hnd, SPA_HANDLE_FACTORY_ENUM_FUNC_NAME)) == NULL) {
+		printf("can't find enum function\n");
+		return -errno;
+	}
+
+	for (i = 0;;) {
+		const struct spa_handle_factory *factory;
+
+		if ((res = enum_func(&factory, &i)) <= 0) {
+			if (res != 0)
+				printf("can't enumerate factories: %s\n", spa_strerror(res));
+			break;
+		}
+		if (!spa_streq(factory->name, name))
+			continue;
+
+		*handle = calloc(1, spa_handle_factory_get_size(factory, NULL));
+		if ((res = spa_handle_factory_init(factory, *handle,
+						NULL, data->support,
+						data->n_support)) < 0) {
+			printf("can't make factory instance: %d\n", res);
+			return res;
+		}
+		return 0;
+	}
+	return -EBADF;
+}
+
+static int make_node(struct data *data, struct spa_node **node, const char *lib, const char *name)
+{
+	struct spa_handle *handle = NULL;
+	void *iface;
+	int res;
+
+	if ((res = load_handle(data, &handle, lib, name)) < 0)
+		return res;
+
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Node, &iface)) < 0) {
+		printf("can't get interface %d\n", res);
+		return res;
+	}
+	*node = iface;
+	return 0;
+}
+
+static int on_source_ready(void *_data, int status)
+{
+	struct data *data = _data;
+	int res;
+	struct buffer *b;
+	void *sdata, *ddata;
+	int sstride, dstride;
+	int i;
+	uint8_t *src, *dst;
+	struct spa_data *datas;
+	struct spa_io_buffers *io = &data->source_output[0];
+
+	if (io->status != SPA_STATUS_HAVE_DATA ||
+		io->buffer_id >= MAX_BUFFERS)
+		return -EINVAL;
+
+	b = &data->buffers[io->buffer_id];
+	io->status = SPA_STATUS_NEED_DATA;
+
+	datas = b->buffer.datas;
+
+	if (b->texture) {
+		SDL_Texture *texture = b->texture;
+
+		SDL_UnlockTexture(texture);
+		if (SDL_RenderClear(data->renderer) < 0) {
+			fprintf(stderr, "Couldn't render clear: %s\n", SDL_GetError());
+			return -EIO;
+		}
+		if (SDL_RenderCopy(data->renderer, texture, NULL, NULL) < 0) {
+			fprintf(stderr, "Couldn't render copy: %s\n", SDL_GetError());
+			return -EIO;
+		}
+		SDL_RenderPresent(data->renderer);
+
+		if (SDL_LockTexture(texture, NULL, &sdata, &sstride) < 0) {
+			fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
+			return -EIO;
+		}
+
+		datas[0].data = sdata;
+	} else {
+		uint8_t *map;
+
+		if (SDL_LockTexture(data->texture, NULL, &ddata, &dstride) < 0) {
+			fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
+			return -EIO;
+		}
+		sdata = datas[0].data;
+		if (datas[0].type == SPA_DATA_MemFd ||
+		    datas[0].type == SPA_DATA_DmaBuf) {
+			map = mmap(NULL, datas[0].maxsize, PROT_READ,
+				   MAP_PRIVATE, datas[0].fd, datas[0].mapoffset);
+			if (map == MAP_FAILED)
+				return -errno;
+			sdata = map;
+		} else if (datas[0].type == SPA_DATA_MemPtr) {
+			map = NULL;
+			sdata = datas[0].data;
+		} else
+			return -EIO;
+
+		sstride = datas[0].chunk->stride;
+
+		for (i = 0; i < HEIGHT; i++) {
+			src = ((uint8_t *) sdata + i * sstride);
+			dst = ((uint8_t *) ddata + i * dstride);
+			memcpy(dst, src, SPA_MIN(sstride, dstride));
+		}
+		SDL_UnlockTexture(data->texture);
+
+		SDL_RenderClear(data->renderer);
+		SDL_RenderCopy(data->renderer, data->texture, NULL, NULL);
+		SDL_RenderPresent(data->renderer);
+
+		if (map)
+			munmap(map, datas[0].maxsize);
+	}
+
+	if ((res = spa_node_process(data->source)) < 0)
+		printf("got process error %d\n", res);
+
+	return 0;
+}
+
+static const struct spa_node_callbacks source_callbacks = {
+	SPA_VERSION_NODE_CALLBACKS,
+	.ready = on_source_ready,
+};
+
+static int make_nodes(struct data *data, uint32_t pattern)
+{
+	int res;
+	struct spa_pod *props;
+	struct spa_pod_builder b = { 0 };
+	uint8_t buffer[256];
+	uint32_t index;
+
+	if ((res =
+	     make_node(data, &data->source,
+		     "videotestsrc/libspa-videotestsrc.so",
+		     "videotestsrc")) < 0) {
+		printf("can't create videotestsrc: %d\n", res);
+		return res;
+	}
+
+	spa_node_set_callbacks(data->source, &source_callbacks, data);
+
+	index = 0;
+	spa_pod_builder_init(&b, buffer, sizeof(buffer));
+	if ((res = spa_node_enum_params_sync(data->source, SPA_PARAM_Props,
+			&index, NULL, &props, &b)) == 1) {
+		spa_debug_pod(0, NULL, props);
+	}
+
+	spa_pod_builder_init(&b, buffer, sizeof(buffer));
+	props = spa_pod_builder_add_object(&b,
+		SPA_TYPE_OBJECT_Props, 0,
+		SPA_PROP_patternType, SPA_POD_Int(pattern));
+
+	if ((res = spa_node_set_param(data->source, SPA_PARAM_Props, 0, props)) < 0)
+		printf("got set_props error %d\n", res);
+
+	return res;
+}
+
+static int setup_buffers(struct data *data)
+{
+	int i;
+
+	for (i = 0; i < MAX_BUFFERS; i++) {
+		struct buffer *b = &data->buffers[i];
+
+		data->bp[i] = &b->buffer;
+
+		b->texture = NULL;
+
+		b->buffer.metas = b->metas;
+		b->buffer.n_metas = 1;
+		b->buffer.datas = b->datas;
+		b->buffer.n_datas = 1;
+
+		b->header.flags = 0;
+		b->header.seq = 0;
+		b->header.pts = 0;
+		b->header.dts_offset = 0;
+		b->metas[0].type = SPA_META_Header;
+		b->metas[0].data = &b->header;
+		b->metas[0].size = sizeof(b->header);
+
+		b->datas[0].type = SPA_DATA_DmaBuf;
+		b->datas[0].flags = 0;
+		b->datas[0].fd = -1;
+		b->datas[0].mapoffset = 0;
+		b->datas[0].maxsize = 0;
+		b->datas[0].data = NULL;
+		b->datas[0].chunk = &b->chunks[0];
+		b->datas[0].chunk->offset = 0;
+		b->datas[0].chunk->size = 0;
+		b->datas[0].chunk->stride = 0;
+	}
+	data->n_buffers = MAX_BUFFERS;
+	return 0;
+}
+
+static int sdl_alloc_buffers(struct data *data)
+{
+	int i;
+
+	for (i = 0; i < MAX_BUFFERS; i++) {
+		struct buffer *b = &data->buffers[i];
+		SDL_Texture *texture;
+		void *ptr;
+		int stride;
+
+		texture = SDL_CreateTexture(data->renderer,
+					    SDL_PIXELFORMAT_RGB24,
+					    SDL_TEXTUREACCESS_STREAMING, WIDTH, HEIGHT);
+		if (!texture) {
+			printf("can't create texture: %s\n", SDL_GetError());
+			return -ENOMEM;
+		}
+		if (SDL_LockTexture(texture, NULL, &ptr, &stride) < 0) {
+			fprintf(stderr, "Couldn't lock texture: %s\n", SDL_GetError());
+			return -EIO;
+		}
+		b->texture = texture;
+
+		b->datas[0].type = SPA_DATA_DmaBuf;
+		b->datas[0].maxsize = stride * HEIGHT;
+		b->datas[0].data = ptr;
+		b->datas[0].chunk->offset = 0;
+		b->datas[0].chunk->size = stride * HEIGHT;
+		b->datas[0].chunk->stride = stride;
+	}
+	return 0;
+}
+
+static int negotiate_formats(struct data *data)
+{
+	int res;
+	struct spa_pod *format;
+	uint8_t buffer[256];
+	struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
+
+	data->source_output[0] = SPA_IO_BUFFERS_INIT;
+
+	if ((res =
+	     spa_node_port_set_io(data->source,
+				  SPA_DIRECTION_OUTPUT, 0,
+				  SPA_IO_Buffers,
+				  &data->source_output[0], sizeof(data->source_output[0]))) < 0)
+		return res;
+
+	format = spa_format_video_raw_build(&b, 0,
+			&SPA_VIDEO_INFO_RAW_INIT(
+				.format =  SPA_VIDEO_FORMAT_RGB,
+				.size = SPA_RECTANGLE(WIDTH, HEIGHT),
+				.framerate = SPA_FRACTION(25,1)));
+
+	if ((res = spa_node_port_set_param(data->source,
+					   SPA_DIRECTION_OUTPUT, 0,
+					   SPA_PARAM_Format, 0,
+					   format)) < 0)
+		return res;
+
+
+	setup_buffers(data);
+
+	if (data->use_buffer) {
+		if ((res = sdl_alloc_buffers(data)) < 0)
+			return res;
+
+		if ((res = spa_node_port_use_buffers(data->source,
+						SPA_DIRECTION_OUTPUT, 0, 0,
+						data->bp, data->n_buffers)) < 0) {
+			printf("can't allocate buffers: %s\n", spa_strerror(res));
+			return -1;
+		}
+	} else {
+		unsigned int n_buffers;
+
+		data->texture = SDL_CreateTexture(data->renderer,
+						  SDL_PIXELFORMAT_RGB24,
+						  SDL_TEXTUREACCESS_STREAMING, WIDTH, HEIGHT);
+		if (!data->texture) {
+			printf("can't create texture: %s\n", SDL_GetError());
+			return -1;
+		}
+		n_buffers = MAX_BUFFERS;
+		if ((res = spa_node_port_use_buffers(data->source,
+						SPA_DIRECTION_OUTPUT, 0,
+						SPA_NODE_BUFFERS_FLAG_ALLOC,
+						data->bp, n_buffers)) < 0) {
+			printf("can't allocate buffers: %s\n", spa_strerror(res));
+			return -1;
+		}
+		data->n_buffers = n_buffers;
+	}
+	return 0;
+}
+
+static void loop(struct data *data)
+{
+	int res;
+	struct spa_command cmd;
+	SDL_Event event;
+
+	printf("starting...\n\n");
+	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Start);
+	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
+		printf("got error %d\n", res);
+
+	data->running = true;
+
+	while (data->running) {
+		// must be called from the thread that created the renderer
+		while (SDL_PollEvent(&event)) {
+			switch (event.type) {
+			case SDL_QUIT:
+				data->running = false;
+				break;
+			}
+		}
+
+		// small timeout to make sure we don't starve the SDL loop
+		spa_loop_control_iterate(data->control, LOOP_TIMEOUT_MS);
+	}
+
+	printf("pausing...\n\n");
+	cmd = SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_Pause);
+	if ((res = spa_node_send_command(data->source, &cmd)) < 0)
+		printf("got error %d\n", res);
+}
+
+int main(int argc, char *argv[])
+{
+	struct data data = { 0 };
+	int res;
+	const char *str;
+	struct spa_handle *handle = NULL;
+	void *iface;
+	uint32_t pattern = 0;
+
+	if ((str = getenv("SPA_PLUGIN_DIR")) == NULL)
+		str = PLUGINDIR;
+	data.plugin_dir = str;
+
+	if ((res = load_handle(&data, &handle,
+					"support/libspa-support.so",
+					SPA_NAME_SUPPORT_SYSTEM)) < 0)
+		return res;
+
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_System, &iface)) < 0) {
+		printf("can't get System interface %d\n", res);
+		return res;
+	}
+	data.system = iface;
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_System, data.system);
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataSystem, data.system);
+
+	if ((res = load_handle(&data, &handle,
+					"support/libspa-support.so",
+					SPA_NAME_SUPPORT_LOOP)) < 0)
+		return res;
+
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Loop, &iface)) < 0) {
+		printf("can't get interface %d\n", res);
+		return res;
+	}
+	data.loop = iface;
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_LoopControl, &iface)) < 0) {
+		printf("can't get interface %d\n", res);
+		return res;
+	}
+	data.control = iface;
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_LoopUtils, &iface)) < 0) {
+		printf("can't get interface %d\n", res);
+		return res;
+	}
+	data.loop_utils = iface;
+
+	data.use_buffer = USE_BUFFER;
+
+	data.log = &default_log.log;
+
+	if ((str = getenv("SPA_DEBUG")))
+		data.log->level = atoi(str);
+
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Log, data.log);
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Loop, data.loop);
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataLoop, data.loop);
+	data.support[data.n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_LoopUtils, data.loop_utils);
+
+	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+		printf("can't initialize SDL: %s\n", SDL_GetError());
+		return -1;
+	}
+
+	if (SDL_CreateWindowAndRenderer
+	    (WIDTH, HEIGHT, SDL_WINDOW_RESIZABLE, &data.window, &data.renderer)) {
+		printf("can't create window: %s\n", SDL_GetError());
+		return -1;
+	}
+
+	if (argv[1] != NULL)
+		pattern = atoi(argv[1]);
+
+	if ((res = make_nodes(&data, pattern)) < 0) {
+		printf("can't make nodes: %d\n", res);
+		return -1;
+	}
+
+	if ((res = negotiate_formats(&data)) < 0) {
+		printf("can't negotiate nodes: %d\n", res);
+		return -1;
+	}
+
+	spa_loop_control_enter(data.control);
+	loop(&data);
+	spa_loop_control_leave(data.control);
+
+	SDL_DestroyRenderer(data.renderer);
+
+	return 0;
+}
diff --git a/spa/examples/meson.build b/spa/examples/meson.build
index fdd54fdcf..8d0fc492b 100644
--- a/spa/examples/meson.build
+++ b/spa/examples/meson.build
@@ -4,6 +4,7 @@ spa_examples = [
   'example-control',
   'local-libcamera',
   'local-v4l2',
+  'local-videotestsrc',
 ]
 
 if not get_option('examples').allowed() or not get_option('spa-plugins').allowed()
@@ -12,6 +13,7 @@ endif
 
 spa_examples_extra_deps = {
   'local-v4l2': [sdl_dep],
+  'local-videotestsrc': [sdl_dep],
   'local-libcamera': [sdl_dep, libcamera_dep],
 }
 
diff --git a/spa/plugins/videotestsrc/videotestsrc.c b/spa/plugins/videotestsrc/videotestsrc.c
index a10c3be63..aff3f5364 100644
--- a/spa/plugins/videotestsrc/videotestsrc.c
+++ b/spa/plugins/videotestsrc/videotestsrc.c
@@ -84,7 +84,7 @@ struct impl {
 
 	struct spa_log *log;
 	struct spa_loop *data_loop;
-	struct spa_system *data_system;
+	struct spa_loop_utils *loop_utils;
 
 	uint64_t info_all;
 	struct spa_node_info info;
@@ -98,7 +98,7 @@ struct impl {
 	struct spa_callbacks callbacks;
 
 	bool async;
-	struct spa_source timer_source;
+	struct spa_source *timer_source;
 	struct itimerspec timerspec;
 
 	bool started;
@@ -277,27 +277,10 @@ static void set_timer(struct impl *this, bool enabled)
 			this->timerspec.it_value.tv_sec = 0;
 			this->timerspec.it_value.tv_nsec = 0;
 		}
-		spa_system_timerfd_settime(this->data_system,
-				this->timer_source.fd, SPA_FD_TIMER_ABSTIME, &this->timerspec, NULL);
+		spa_loop_utils_update_timer(this->loop_utils, this->timer_source, &this->timerspec.it_value, &this->timerspec.it_interval, true);
 	}
 }
 
-static int read_timer(struct impl *this)
-{
-	uint64_t expirations;
-	int res = 0;
-
-	if (this->async || this->props.live) {
-		if ((res = spa_system_timerfd_read(this->data_system,
-						this->timer_source.fd, &expirations)) < 0) {
-			if (res != -EAGAIN)
-				spa_log_error(this->log, "%p: timerfd error: %s",
-						this, spa_strerror(res));
-		}
-	}
-	return res;
-}
-
 static int make_buffer(struct impl *this)
 {
 	struct buffer *b;
@@ -305,9 +288,6 @@ static int make_buffer(struct impl *this)
 	struct spa_io_buffers *io = port->io;
 	uint32_t n_bytes;
 
-	if (read_timer(this) < 0)
-		return 0;
-
 	if (spa_list_is_empty(&port->empty)) {
 		set_timer(this, false);
 		spa_log_error(this->log, "%p: out of buffers", this);
@@ -343,9 +323,9 @@ static int make_buffer(struct impl *this)
 	return io->status;
 }
 
-static void on_output(struct spa_source *source)
+static void on_output(void* data, uint64_t expirations)
 {
-	struct impl *this = source->data;
+	struct impl *this = data;
 	int res;
 
 	res = make_buffer(this);
@@ -859,7 +839,7 @@ static int impl_get_interface(struct spa_handle *handle, const char *type, void
 static int do_remove_timer(struct spa_loop *loop, bool async, uint32_t seq, const void *data, size_t size, void *user_data)
 {
 	struct impl *this = user_data;
-	spa_loop_remove_source(this->data_loop, &this->timer_source);
+	spa_loop_remove_source(this->data_loop, this->timer_source);
 	return 0;
 }
 
@@ -873,7 +853,7 @@ static int impl_clear(struct spa_handle *handle)
 
 	if (this->data_loop)
 		spa_loop_invoke(this->data_loop, do_remove_timer, 0, NULL, 0, true, this);
-	spa_system_close(this->data_system, this->timer_source.fd);
+	spa_loop_utils_destroy_source(this->loop_utils, this->timer_source);
 
 	return 0;
 }
@@ -905,7 +885,7 @@ impl_init(const struct spa_handle_factory *factory,
 
 	this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
 	this->data_loop = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataLoop);
-	this->data_system = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DataSystem);
+	this->loop_utils = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_LoopUtils);
 
 	spa_hook_list_init(&this->hooks);
 
@@ -926,20 +906,12 @@ impl_init(const struct spa_handle_factory *factory,
 	this->info.n_params = 2;
 	reset_props(&this->props);
 
-	this->timer_source.func = on_output;
-	this->timer_source.data = this;
-	this->timer_source.fd = spa_system_timerfd_create(this->data_system, CLOCK_MONOTONIC,
-							  SPA_FD_CLOEXEC | SPA_FD_NONBLOCK);
-	this->timer_source.mask = SPA_IO_IN;
-	this->timer_source.rmask = 0;
+	this->timer_source = spa_loop_utils_add_timer(this->loop_utils, on_output, this);
 	this->timerspec.it_value.tv_sec = 0;
 	this->timerspec.it_value.tv_nsec = 0;
 	this->timerspec.it_interval.tv_sec = 0;
 	this->timerspec.it_interval.tv_nsec = 0;
 
-	if (this->data_loop)
-		spa_loop_add_source(this->data_loop, &this->timer_source);
-
 	port = &this->port;
 	port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
 			SPA_PORT_CHANGE_MASK_PARAMS;