shithub: libvpx

Download patch

ref: 8458c8c45036d651612160eb7baf49bcefc471d2
parent: cdc933ca0043b7944a4a45edb85d4c142f63fc56
parent: 047b0b01bbe8668c02438532520ea3c92b87f2f3
author: Yaowu Xu <yaowu@google.com>
date: Thu Jan 2 04:27:28 EST 2014 

Merge "Fix show existing frame"


--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -132,6 +132,7 @@
 
   int show_frame;
   int last_show_frame;
+  int show_existing_frame;
 
   // Flag signaling that the frame is encoded using only INTRA modes.
   int intra_only;
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -1132,7 +1132,8 @@
   cm->version = vp9_rb_read_bit(rb);
   RESERVED;
 
-  if (vp9_rb_read_bit(rb)) {
+  cm->show_existing_frame = vp9_rb_read_bit(rb);
+  if (cm->show_existing_frame) {
     // show an existing frame directly
     int frame_to_show = cm->ref_frame_map[vp9_rb_read_literal(rb, 3)];
     ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->new_fb_idx, frame_to_show);
--- a/vp9/decoder/vp9_onyxd_if.c
+++ b/vp9/decoder/vp9_onyxd_if.c
@@ -389,23 +389,25 @@
 
   cm->last_show_frame = cm->show_frame;
   if (cm->show_frame) {
-    // current mip will be the prev_mip for the next frame
-    MODE_INFO *temp = cm->prev_mip;
-    MODE_INFO **temp2 = cm->prev_mi_grid_base;
-    cm->prev_mip = cm->mip;
-    cm->mip = temp;
-    cm->prev_mi_grid_base = cm->mi_grid_base;
-    cm->mi_grid_base = temp2;
+    if (!cm->show_existing_frame) {
+      // current mip will be the prev_mip for the next frame
+      MODE_INFO *temp = cm->prev_mip;
+      MODE_INFO **temp2 = cm->prev_mi_grid_base;
+      cm->prev_mip = cm->mip;
+      cm->mip = temp;
+      cm->prev_mi_grid_base = cm->mi_grid_base;
+      cm->mi_grid_base = temp2;
 
-    // update the upper left visible macroblock ptrs
-    cm->mi = cm->mip + cm->mode_info_stride + 1;
-    cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
-    cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
-    cm->prev_mi_grid_visible = cm->prev_mi_grid_base + cm->mode_info_stride + 1;
+      // update the upper left visible macroblock ptrs
+      cm->mi = cm->mip + cm->mode_info_stride + 1;
+      cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
+      cm->mi_grid_visible = cm->mi_grid_base + cm->mode_info_stride + 1;
+      cm->prev_mi_grid_visible = cm->prev_mi_grid_base +
+                                 cm->mode_info_stride + 1;
 
-    pbi->mb.mi_8x8 = cm->mi_grid_visible;
-    pbi->mb.mi_8x8[0] = cm->mi;
-
+      pbi->mb.mi_8x8 = cm->mi_grid_visible;
+      pbi->mb.mi_8x8[0] = cm->mi;
+    }
     cm->current_video_frame++;
   }