vp9_spatial_svc_encoder: Add encoding time log.

Change-Id: Iab4e4a13a65c9dc5314e5107b126c30667c7b448

examples/vp9_spatial_svc_encoder.c

@@ -25,6 +25,7 @@
 #include "../tools_common.h"
 #include "../video_writer.h"
 
+#include "../vpx_ports/vpx_timer.h"
 #include "vpx/svc_context.h"
 #include "vpx/vp8cx.h"
 #include "vpx/vpx_encoder.h"
@@ -564,6 +565,8 @@ int main(int argc, const char **argv) {
   double sum_bitrate2 = 0.0;
   double framerate  = 30.0;
 #endif
+  struct vpx_usec_timer timer;
+  int64_t cx_time = 0;
   memset(&svc_ctx, 0, sizeof(svc_ctx));
   svc_ctx.log_print = 1;
   exec_name = argv[0];
@@ -643,9 +646,12 @@ int main(int argc, const char **argv) {
       end_of_stream = 1;
     }
 
+    vpx_usec_timer_start(&timer);
     res = vpx_svc_encode(&svc_ctx, &codec, (end_of_stream ? NULL : &raw),
                          pts, frame_duration, svc_ctx.speed >= 5 ?
                          VPX_DL_REALTIME : VPX_DL_GOOD_QUALITY);
+    vpx_usec_timer_mark(&timer);
+    cx_time += vpx_usec_timer_elapsed(&timer);
 
     printf("%s", vpx_svc_get_message(&svc_ctx));
     if (res != VPX_CODEC_OK) {
@@ -784,6 +790,10 @@ int main(int argc, const char **argv) {
     }
   }
 #endif
+  printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n",
+         frame_cnt,
+         1000 * (float)cx_time / (double)(frame_cnt * 1000000),
+         1000000 * (double)frame_cnt / (double)cx_time);
   vpx_img_free(&raw);
   // display average size, psnr
   printf("%s", vpx_svc_dump_statistics(&svc_ctx));