[FFmpeg-cvslog] avcodec/nvenc: explicitly disable lookahead if lacking sufficient surfaces

[Timo Rothenpieler]

ffmpeg | branch: master | Timo Rothenpieler <timo at rothenpieler.org> | Mon Dec  5 21:10:36 2022 +0100| [ac0f42d8939351747fcb6938d4bdebc970b8ee0e] | committer: Timo Rothenpieler

avcodec/nvenc: explicitly disable lookahead if lacking sufficient surfaces

It could already be enabled by the preset, so it needs explicitly
disabled in this case.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ac0f42d8939351747fcb6938d4bdebc970b8ee0e
---

 libavcodec/nvenc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
index 9726c565d3..30c10f394a 100644
--- a/libavcodec/nvenc.c
+++ b/libavcodec/nvenc.c
@@ -1076,6 +1076,7 @@ static av_cold void nvenc_setup_rate_control(AVCodecContext *avctx)
                         ctx->encode_config.frameIntervalP - 4;
 
         if (lkd_bound < 0) {
+            ctx->encode_config.rcParams.enableLookahead = 0;
             av_log(avctx, AV_LOG_WARNING,
                    "Lookahead not enabled. Increase buffer delay (-delay).\n");
         } else {