avcodec/nvenc: fix intraRefreshPeriod setting

Regression since 99dfdb45. intraRefreshPeriod access cc->gopLength,
which has been overwritten to NVENC_INFINITE_GOPLENGTH before.

Fixes #10445.

libavcodec/nvenc.c

@@ -1173,6 +1173,7 @@ static av_cold int nvenc_setup_h264_config(AVCodecContext *avctx)
         h264->enableIntraRefresh = 1;
         h264->intraRefreshPeriod = cc->gopLength;
         h264->intraRefreshCnt = cc->gopLength - 1;
+        cc->gopLength = NVENC_INFINITE_GOPLENGTH;
 #ifdef NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
         h264->singleSliceIntraRefresh = ctx->single_slice_intra_refresh;
 #endif
@@ -1297,6 +1298,7 @@ static av_cold int nvenc_setup_hevc_config(AVCodecContext *avctx)
         hevc->enableIntraRefresh = 1;
         hevc->intraRefreshPeriod = cc->gopLength;
         hevc->intraRefreshCnt = cc->gopLength - 1;
+        cc->gopLength = NVENC_INFINITE_GOPLENGTH;
 #ifdef NVENC_HAVE_SINGLE_SLICE_INTRA_REFRESH
         hevc->singleSliceIntraRefresh = ctx->single_slice_intra_refresh;
 #endif
@@ -1415,6 +1417,7 @@ static av_cold int nvenc_setup_av1_config(AVCodecContext *avctx)
         av1->enableIntraRefresh = 1;
         av1->intraRefreshPeriod = cc->gopLength;
         av1->intraRefreshCnt = cc->gopLength - 1;
+        cc->gopLength = NVENC_INFINITE_GOPLENGTH;
 
         av1->idrPeriod = NVENC_INFINITE_GOPLENGTH;
     } else if (cc->gopLength > 0) {
@@ -1619,9 +1622,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
     if(ctx->single_slice_intra_refresh)
         ctx->intra_refresh = 1;
 
-    if (ctx->intra_refresh)
-        ctx->encode_config.gopLength = NVENC_INFINITE_GOPLENGTH;
-
     nvenc_recalc_surfaces(avctx);
 
     nvenc_setup_rate_control(avctx);