diff mbox series

[FFmpeg-devel] set ulMaxDisplayDelay cuviddec parser option to zero if low_delay flag is on

Message ID CAGqZTUvunG96Q0XmTfACjgAp3k9Nmz27rbYRjNbHtoueQJBiQA@mail.gmail.com
State Superseded
Headers show
Series [FFmpeg-devel] set ulMaxDisplayDelay cuviddec parser option to zero if low_delay flag is on
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Checks

Context Check Description
andriy/configure warning Failed to apply patch
andriy/configure warning Failed to apply patch

Commit Message

clime Feb. 19, 2021, 5:27 p.m. UTC
From a2c5edfdbeb428935f7e12c8d78a68d45b2e598d Mon Sep 17 00:00:00 2001
From: Michal Novotny <michal.novotny@comprimato.com>
Date: Fri, 19 Feb 2021 05:11:14 -0800
Subject: [PATCH] set ulMaxDisplayDelay cuviddec parser option to zero if
low_delay flag is on

* zero is recommended value in Nvidia coding samples for low latency use-cases
---
libavcodec/cuviddec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

    ctx->cuparseinfo.pfnDecodePicture = cuvid_handle_picture_decode;
--
2.30.1
diff mbox series

Patch

diff --git a/libavcodec/cuviddec.c b/libavcodec/cuviddec.c
index 49775b5a09..ef5acb6b7b 100644
--- a/libavcodec/cuviddec.c
+++ b/libavcodec/cuviddec.c
@@ -999,7 +999,7 @@  static av_cold int cuvid_decode_init(AVCodecContext *avctx)
    }

    ctx->cuparseinfo.ulMaxNumDecodeSurfaces = ctx->nb_surfaces;
-    ctx->cuparseinfo.ulMaxDisplayDelay = 4;
+    ctx->cuparseinfo.ulMaxDisplayDelay = avctx->flags &
AV_CODEC_FLAG_LOW_DELAY ? 0 : 4;
    ctx->cuparseinfo.pUserData = avctx;
    ctx->cuparseinfo.pfnSequenceCallback = cuvid_handle_video_sequence;