-#define LOCAL_DUMP_FILE_NAME "test.mov"
-#define STREAM_MUX_NAME "mov"
-#define MUX_OPTS {{ "movflags", "empty_moov+frag_keyframe+default_base_moof" }}
+#define LOCAL_DUMP_PREFIX "record-"
+#define LOCAL_DUMP_SUFFIX ".nut"
+#define DEFAULT_STREAM_MUX_NAME "nut" // Only for HTTP. Local dump guesses from LOCAL_DUMP_SUFFIX.
+#define MUX_OPTS { \
+ /* Make seekable .mov files. */ \
+ { "movflags", "empty_moov+frag_keyframe+default_base_moof" }, \
+ \
+ /* Make for somewhat less bursty stream output when using .mov. */ \
+ { "frag_duration", "125000" }, \
+ \
+ /* Keep nut muxer from using unlimited amounts of memory. */ \
+ { "write_index", "0" } \
+}