v4l2src hangs on Gstreamer 1.0 but works on 0.10

v4l2_hang.c

/**
Hangs after two frames with gstreamer 1.0:
gcc -o v4l2_hang1.0 `pkg-config gstreamer-1.0 --cflags --libs` v4l2_hang.c && ./v4l2_hang1.0

Works fine with 0.10
gcc -o v4l2_hang0.10 `pkg-config gstreamer-0.10 --cflags --libs` v4l2_hang.c && ./v4l2_hang0.10
*/
#include <gst/gst.h>
#include <stdio.h>

int main(int argc, char **argv) {
	gst_init(&argc, &argv);
	GError *error = NULL;
	GstElement *pipeline = gst_parse_launch(
		"v4l2src device=/dev/video0 ! "
		"appsink sync=false max-buffers=1 drop=true name=sink emit-signals=true",
		&error);
	if(!pipeline) {
		printf("Pipeline construction failed: %s\n", error->message);
		return 1;
	}
	GstElement *sink = gst_bin_get_by_name((GstBin *)pipeline, "sink");
	if(!sink) {
		puts("Gouldn't get the sink");
		return 1;
	}
	gst_element_set_state(pipeline, GST_STATE_PLAYING);
	#if GST_VERSION_MAJOR == (1)
	GstSample *sample;
	for(;;) {
		printf("Pulling sample\n");
		g_signal_emit_by_name(sink, "pull-sample", &sample, NULL);
	}
	#endif
	GstBuffer *buffer;
	for(;;) {
		printf("Pulling buffer\n");
		g_signal_emit_by_name(sink, "pull-buffer", &buffer, NULL);
	}
	return 0;
}