From 4239f80c8101fca9b70dd9946ca38d659697a77f Mon Sep 17 00:00:00 2001 From: Nyanmisaka Date: Tue, 1 Mar 2022 23:14:35 +0800 Subject: [PATCH] Lowering the VRAM usage on NVDEC decoder --- MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs index 931337bf48..6026f18c77 100644 --- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs +++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs @@ -771,10 +771,6 @@ namespace MediaBrowser.Controller.MediaEncoding args.Append(GetCudaDeviceArgs(0, CudaAlias)) .Append(GetFilterHwDeviceArgs(CudaAlias)); - - // workaround for "No decoder surfaces left" error, - // but will increase vram usage. https://trac.ffmpeg.org/ticket/7562 - args.Append(" -extra_hw_frames 3"); } else if (string.Equals(optHwaccelType, "amf", StringComparison.OrdinalIgnoreCase)) { @@ -4431,7 +4427,8 @@ namespace MediaBrowser.Controller.MediaEncoding { if (options.EnableEnhancedNvdecDecoder && isCudaSupported && isCodecAvailable) { - return " -hwaccel cuda" + (outputHwSurface ? " -hwaccel_output_format cuda" : string.Empty) + (isAv1 ? " -c:v av1" : string.Empty); + // set -threads 1 to nvdec decoder explicitly since it doesn't implement threading support. + return " -hwaccel cuda" + (outputHwSurface ? " -hwaccel_output_format cuda" : string.Empty) + " -threads 1" + (isAv1 ? " -c:v av1" : string.Empty); } }