shithub: libvpx

Download patch

ref: 2b369bf63ccb709ce0607ffa4eedcfea1c235b31
parent: 581b6b826e1b157fc38606e4755d5fb56a51bbdb
parent: 8a22a21cc0c5705cb23995013049b0bd80cceff5
author: Marco Paniconi <marpan@google.com>
date: Wed Apr 18 21:39:52 EDT 2018

Merge "vp9: Remove limit on QP on key frame for CBR."

--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -832,19 +832,6 @@
   *top_index = active_worst_quality;
   *bottom_index = active_best_quality;
 
-#if LIMIT_QRANGE_FOR_ALTREF_AND_KEY
-  // Limit Q range for the adaptive loop.
-  if (cm->frame_type == KEY_FRAME && !rc->this_key_frame_forced &&
-      !(cm->current_video_frame == 0)) {
-    int qdelta = 0;
-    vpx_clear_system_state();
-    qdelta = vp9_compute_qdelta_by_rate(
-        &cpi->rc, cm->frame_type, active_worst_quality, 2.0, cm->bit_depth);
-    *top_index = active_worst_quality + qdelta;
-    *top_index = (*top_index > *bottom_index) ? *top_index : *bottom_index;
-  }
-#endif
-
   // Special case code to try and match quality with forced key frames
   if (cm->frame_type == KEY_FRAME && rc->this_key_frame_forced) {
     q = rc->last_boosted_qindex;