Update low-complexity mode support for horizontal videos

Change-Id: I57e42144218e7e0025720b599674095d87060e0c

av1/arg_defs.c

diff --git a/av1/arg_defs.c b/av1/arg_defs.c
index ff0f03a..5febc5a 100644
--- a/av1/arg_defs.c
+++ b/av1/arg_defs.c
@@ -713,9 +713,9 @@
               "given lambda to minimize the rdcost."),
   .enable_low_complexity_decode = ARG_DEF(
       NULL, "enable-low-complexity-decode", 1,
-      "Enable low complexity decode (0: false (default), 1: true). As of now, "
-      "this only supports good-quality encoding (speed 1 to 3) for vertical "
-      "videos between 608p and 720p."),
+      "Enable low complexity decode (0: false (default), 1: true). This "
+      "supports good-quality encoding (speed 1 to 3) for vertical videos "
+      "(608p to 1080p) and horizontal videos (720p to 1080p)."),
   .screen_detection_mode = ARG_DEF(
       NULL, "screen-detection-mode", 1,
       "Screen content detection mode (1: standard (default in good quality and "

av1/av1_cx_iface.c

diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index f428e8a..a814a75 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -1397,9 +1397,9 @@
     if (AOMMIN(cfg->g_w, cfg->g_h) >= 1080 && oxcf->speed < 7) oxcf->speed = 7;
   }
 
-  // Now, low complexity decode mode is only supported for good-quality
-  // encoding speed 1 to 3 and for vertical videos with a resolution between
-  // 608p and 720p. This can be further modified if needed.
+  // Now, low complexity decode mode supports good-quality encoding (speed 1 to
+  // 3) for vertical videos (608p to 1080p) and horizontal videos (720p to
+  // 1080p). This can be further modified if needed.
   const int is_low_complexity_decode_mode_supported =
       (cfg->g_usage == AOM_USAGE_GOOD_QUALITY) &&
       (oxcf->speed >= 1 && oxcf->speed <= 3) &&