From 69b0b63a950a7a076a682fb81d3a0ff32239c1a0 Mon Sep 17 00:00:00 2001 From: nyanmisaka Date: Sun, 24 May 2026 03:31:56 +0800 Subject: Fix inconsistent extradata generated by hevc_vaapi on AMD driver This change is required for upstream ffmpeg 8+, because its mp4 muxer will drop in-band PS when using codec tag hvc1. Signed-off-by: nyanmisaka --- MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs') diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs index 8f6e36bce4..8688ea4b6c 100644 --- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs +++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs @@ -2014,11 +2014,15 @@ namespace MediaBrowser.Controller.MediaEncoding args += keyFrameArg + gopArg; } - // global_header produced by AMD HEVC VA-API encoder causes non-playable fMP4 on iOS + // The in-band Parameter Sets generated by the AMD HEVC VA-API encoder is inconsistent + // with the extradata generated by ffmpeg, causing decoding failures when using hvc1. if (string.Equals(codec, "hevc_vaapi", StringComparison.OrdinalIgnoreCase) && _mediaEncoder.IsVaapiDeviceAmd) { - args += " -flags:v -global_header"; + // Extracting the extradata from the in-band PS to bypass the issue. + // This can be removed once the issue is resolved in libva or Mesa. + // Transcoding is unavoidable here, so using BSF will not conflict with BSF in remuxing. + args += " -flags:v -global_header -bsf:v extract_extradata=remove=0"; } return args; -- cgit v1.2.3