shithub: libvpx

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Skip frame encoding when show_existing_frame is on

No need to process through the frame encoding stage when a current
frame is coded using show_existing_frame.

Change-Id: I36c6f04e344326fa6ecc95cd0a4e4fd6f467fdcb

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -3816,6 +3816,8 @@

           ? cpi->svc.downsample_filter_phase[cpi->svc.spatial_layer_id]

           : 0;

+  if (cm->show_existing_frame) return 1;

+

   // Flag to check if its valid to compute the source sad (used for

   // scene detection and for superblock content state in CBR mode).

   // The flag may get reset below based on SVC or resizing state.

@@ -4092,6 +4094,8 @@

 #ifdef AGGRESSIVE_VBR

   int qrange_adj = 1;

 #endif

+

+  if (cm->show_existing_frame) return;

   set_size_independent_vars(cpi);