schroedinger: use CLOCK_FREQ

modules/codec/schroedinger.c

@@ -602,7 +602,7 @@ static void SetVideoFormat( decoder_t *p_dec )
     p_sys->p_format = schro_decoder_get_video_format(p_sys->p_schro);
     if( p_sys->p_format == NULL ) return;
 
-    p_sys->i_frame_pts_delta = INT64_C(1000000)
+    p_sys->i_frame_pts_delta = CLOCK_FREQ
                             * p_sys->p_format->frame_rate_denominator
                             / p_sys->p_format->frame_rate_numerator;