From 5569c2c68dbbc3330e229e2d8cb9951b9da4d080 Mon Sep 17 00:00:00 2001
From: Herman Chen <herman.chen@rock-chips.com>
Date: Thu, 14 Jan 2021 15:21:36 +0800
Subject: [PATCH] [rc]: Set statistic time to minimum 2s

NOTE: Gop is better to be integer multiples of output fps.

Change-Id: Id42e2e0c076d6c0a3f67756dc73dca7451b95ff6
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
---
 mpp/codec/mpp_enc_impl.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mpp/codec/mpp_enc_impl.cpp b/mpp/codec/mpp_enc_impl.cpp
index 74dbfacf..717dc788 100644
--- a/mpp/codec/mpp_enc_impl.cpp
+++ b/mpp/codec/mpp_enc_impl.cpp
@@ -900,7 +900,10 @@ static void set_rc_cfg(RcCfg *cfg, MppEncCfgSet *cfg_set)
     cfg->bps_target = rc->bps_target;
     cfg->bps_max    = rc->bps_max;
     cfg->bps_min    = rc->bps_min;
-    cfg->stat_times = 3;
+    mpp_assert(rc->fps_out_num);
+    cfg->stat_times = rc->gop * rc->fps_out_denorm / rc->fps_out_num;
+    if (cfg->stat_times < 2)
+        cfg->stat_times = 2;
 
     /* quality configure */
     switch (codec->coding) {