gst_buffer and gstring

main.c

/* gcc -Wall -Wextra main.c `pkg-config --libs --cflags gstreamer-1.0` */
#include <gst/gst.h>

int main(int argc, char *argv[])
{
	GstBuffer *buf;
	GstMapInfo info;
	GString *tmp;

	gst_init (&argc, &argv);

	buf = gst_buffer_new ();
	tmp = g_string_new ("Hello");

	/* gst_buffer_append_memory()
	 *   https://developer.gnome.org/gstreamer/stable/gstreamer-GstBuffer.html#gst-buffer-append-memory
	 * gst_memory_new_wrapped()
	 *   https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#gst-memory-new-wrapped
	 */
	gst_buffer_append_memory (buf,
			gst_memory_new_wrapped (GST_MEMORY_FLAG_NO_SHARE,
				tmp->str, tmp->allocated_len, 0, tmp->len, NULL, NULL));

	/* gst_buffer_map()
	 *   https://developer.gnome.org/gstreamer/stable/gstreamer-GstBuffer.html#gst-buffer-map
	 */
	gst_buffer_map (buf, &info, GST_MAP_READ);

	g_print ("%s\n", info.data);

	gst_buffer_unmap (buf, &info);
	gst_buffer_unref (buf);
	g_string_free (tmp, TRUE);

	return 0;
}