From de40342c0442ce5bd423ba373e465625bc504f3e Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 5 Jan 2022 15:16:23 +0100
Subject: [PATCH] lavc/cuviddec: do not reallocate the fifo unnecessarily

---
 libavcodec/cuviddec.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libavcodec/cuviddec.c b/libavcodec/cuviddec.c
index f03bbd8c4b..b1a3d674ab 100644
--- a/libavcodec/cuviddec.c
+++ b/libavcodec/cuviddec.c
@@ -1030,13 +1030,7 @@ static void cuvid_flush(AVCodecContext *avctx)
     if (ret < 0)
         goto error;
 
-    av_fifo_freep(&ctx->frame_queue);
-
-    ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
-    if (!ctx->frame_queue) {
-        av_log(avctx, AV_LOG_ERROR, "Failed to recreate frame queue on flush\n");
-        return;
-    }
+    av_fifo_reset(ctx->frame_queue);
 
     if (ctx->cudecoder) {
         ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);