access: rtp: allow control of packet timing for rtp_dequeue

modules/access/rtp/input.c

@@ -155,7 +155,7 @@ void *rtp_dgram_thread (void *opaque)
         }
 
     dequeue:
-        if (!rtp_dequeue (sys->logger, sys->session, &deadline))
+        if (!rtp_dequeue (sys->logger, sys->session, vlc_tick_now(), &deadline))
             deadline = VLC_TICK_INVALID;
         vlc_restorecancel (canc);
     }

modules/access/rtp/rtp.h

@@ -369,7 +369,7 @@ rtp_session_t *rtp_session_create_custom (uint16_t max_dropout, uint16_t max_mis
                                           uint8_t max_src, vlc_tick_t timeout);
 void rtp_session_destroy (struct vlc_logger *, rtp_session_t *);
 void rtp_queue (struct vlc_logger *, rtp_session_t *, block_t *);
-bool rtp_dequeue (struct vlc_logger *, const rtp_session_t *, vlc_tick_t *);
+bool rtp_dequeue (struct vlc_logger *, const rtp_session_t *, vlc_tick_t, vlc_tick_t *);
 int rtp_add_type(rtp_session_t *ses, rtp_pt_t *pt);
 int vlc_rtp_add_media_types(vlc_object_t *obj, rtp_session_t *ses,
                             const struct vlc_sdp_media *media,

modules/access/rtp/session.c

@@ -372,14 +372,14 @@ drop:
  *
  * @param logger pointer to VLC logger
  * @param session RTP session receiving the packet
+ * @param now monotonic clock reference for packets timing (ex: vlc_tick_now())
  * @param deadlinep pointer to deadline to call rtp_dequeue() again
  * @return true if the buffer is not empty, false otherwise.
  * In the later case, *deadlinep is undefined.
  */
 bool rtp_dequeue (struct vlc_logger *logger, const rtp_session_t *session,
-                  vlc_tick_t *restrict deadlinep)
+                  vlc_tick_t now, vlc_tick_t *restrict deadlinep)
 {
-    vlc_tick_t now = vlc_tick_now ();
     bool pending = false;
 
     *deadlinep = VLC_TICK_MAX;