commit 176d66c6fb6fc4b854b2f876cb982520d656c850
author Mudassir Galagnath <mudassir.galaganath@ittiam.com> Tue Oct 21 20:34:08 2025 +0530
committer Yunqing Wang <yunqingwang@google.com> Tue Oct 21 15:04:15 2025 -0700
tree 9e20ab3e5e69bc3d38070d13417f21a71828d733
parent 1ca556e1dc4e3a1b3592b49308107bf705e3c2f4

lc-dec: Extend vertical 608p/720p sfs to vertical 1080p

In this patch, low complexity decode mode speed features of vertical
608p/720p resolutions are extended to vertical 1080p resolution.

Performance results of encoder and decoder for the streams generated
with low complexity decode mode enabled.

                 Decode Time              BD-Rate Loss(%)
cpu  Resolution  Reduction(%)  avg.psnr    ssim      vmaf    vmaf_neg
 1      1080p       23.029      1.4448    2.4117    1.2980    1.1123
 2      1080p       21.487      1.3926    2.3676    1.3641    1.1507
 3      1080p       21.855      1.6171    2.6629    1.7533    1.5080

STATS_CHANGED for vertical 1080p with low complexity decode mode enabled.

Change-Id: Icfd398504d6ffff9e4f64f1a5229451ed60a35d4

av1/av1_cx_iface.c

diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index 4eff4e9..fc4c431 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -1343,7 +1343,7 @@
   const int is_low_complexity_decode_mode_supported =
       (cfg->g_usage == AOM_USAGE_GOOD_QUALITY) &&
       (oxcf->speed >= 1 && oxcf->speed <= 3) && (cfg->g_w < cfg->g_h) &&
-      (AOMMIN(cfg->g_w, cfg->g_h) >= 608 && AOMMIN(cfg->g_w, cfg->g_h) <= 720);
+      (AOMMIN(cfg->g_w, cfg->g_h) >= 608 && AOMMIN(cfg->g_w, cfg->g_h) <= 1080);
   oxcf->enable_low_complexity_decode =
       extra_cfg->enable_low_complexity_decode &&
       is_low_complexity_decode_mode_supported;

av1/encoder/speed_features.c

diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index 84503dd..4bad112 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -638,8 +638,8 @@
 
   const AV1_COMMON *const cm = &cpi->common;
   const bool is_720p_or_larger = AOMMIN(cm->width, cm->height) >= 720;
-  const bool is_between_608p_and_720p = AOMMIN(cm->width, cm->height) >= 608 &&
-                                        AOMMIN(cm->width, cm->height) <= 720;
+  const bool is_between_608p_and_1080p = AOMMIN(cm->width, cm->height) >= 608 &&
+                                         AOMMIN(cm->width, cm->height) <= 1080;
   const bool is_vertical_video = cm->width < cm->height;
 
   const FRAME_UPDATE_TYPE update_type =
@@ -648,7 +648,7 @@
   const int is_key_frame = frame_is_intra_only(cm);
 
   // Speed features for vertical videos
-  if (is_vertical_video && is_between_608p_and_720p) {
+  if (is_vertical_video && is_between_608p_and_1080p) {
     const int leaf_and_overlay_frames =
         (update_type == LF_UPDATE || update_type == OVERLAY_UPDATE ||
          update_type == INTNL_OVERLAY_UPDATE);
@@ -2745,8 +2745,8 @@
   if (speed < 1 || speed > 3) return;
 
   const AV1_COMMON *const cm = &cpi->common;
-  const bool is_between_608p_and_720p = AOMMIN(cm->width, cm->height) >= 608 &&
-                                        AOMMIN(cm->width, cm->height) <= 720;
+  const bool is_between_608p_and_1080p = AOMMIN(cm->width, cm->height) >= 608 &&
+                                         AOMMIN(cm->width, cm->height) <= 1080;
   const bool is_720p_or_larger = AOMMIN(cm->width, cm->height) >= 720;
   const bool is_vertical_video = cm->width < cm->height;
   const FRAME_UPDATE_TYPE update_type =
@@ -2756,7 +2756,7 @@
        update_type == INTNL_OVERLAY_UPDATE);
 
   // Speed features for vertical videos
-  if (is_vertical_video && is_between_608p_and_720p) {
+  if (is_vertical_video && is_between_608p_and_1080p) {
     sf->lpf_sf.min_lr_unit_size = RESTORATION_UNITSIZE_MAX >> 1;
     sf->lpf_sf.max_lr_unit_size = RESTORATION_UNITSIZE_MAX >> 1;
   }