shithub: libvpx

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Refactor some swapping code with a local func.

Change-Id: Ic55c156ab12703b05ec0d54d83ed16d40e640abe

--- a/vp9/encoder/vp9_svc_layercontext.c

+++ b/vp9/encoder/vp9_svc_layercontext.c

@@ -19,6 +19,14 @@

 #define SMALL_FRAME_WIDTH 32

 #define SMALL_FRAME_HEIGHT 16

+static void swap_ptr(void *a, void *b) {

+  void **a_p = (void **)a;

+  void **b_p = (void **)b;

+  void *c = *a_p;

+  *a_p = *b_p;

+  *b_p = c;

+}

+

 void vp9_init_layer_context(VP9_COMP *const cpi) {

   SVC *const svc = &cpi->svc;

   const VP9EncoderConfig *const oxcf = &cpi->oxcf;

@@ -339,15 +347,9 @@

   if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&

       cpi->svc.number_spatial_layers > 1 && cpi->svc.temporal_layer_id == 0) {

     CYCLIC_REFRESH *const cr = cpi->cyclic_refresh;

-    signed char *temp = cr->map;

-    uint8_t *temp2 = cr->last_coded_q_map;

-    uint8_t *temp3 = cpi->consec_zero_mv;

-    cr->map = lc->map;

-    lc->map = temp;

-    cr->last_coded_q_map = lc->last_coded_q_map;

-    lc->last_coded_q_map = temp2;

-    cpi->consec_zero_mv = lc->consec_zero_mv;

-    lc->consec_zero_mv = temp3;

+    swap_ptr(&cr->map, &lc->map);

+    swap_ptr(&cr->last_coded_q_map, &lc->last_coded_q_map);

+    swap_ptr(&cpi->consec_zero_mv, &lc->consec_zero_mv);

     cr->sb_index = lc->sb_index;

   }

 }