nvenc: Update check for lookahead

By default it is -1.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index d5bfd74e30dd6738dc09408733518b673dcb3fcc..4054e43eecd575ada3737ce39b0decb7b5282ba2 100644 (file)
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -623,7 +623,7 @@ static void nvenc_setup_rate_control(AVCodecContext *avctx)
         av_log(avctx, AV_LOG_VERBOSE, "Temporal AQ enabled.\n");
     }
 
-    if (ctx->rc_lookahead) {
+    if (ctx->rc_lookahead > 0) {
         int lkd_bound = FFMIN(ctx->nb_surfaces, ctx->async_depth) -
                         ctx->config.frameIntervalP - 4;