In short, what we need is to fix the live stream so H264_QSV decoder can handle it (that's solved using the '-vcodec copy -acodec copy' or '-c copy' and a pipe to another FFMPEG instance), and to find a context where FFMPEG can render a DirectX QSV Device and use it instead of Windows Service Context. It's not (only) about the pipe, it's the HWACCEL option.įFMPEG supports hardware acceleration, but when it comes to QSV it needs to render a DirectX device first.Īs RS is running in a Windows Service context, DirectX is not available (DirectX 11 does under some limitations, but FFMPEG does not use it to access QSV devices) and therefore FFMPEG cannot create an instance of DirectX QSV Devices to decode video when called from RS. Writing library : libebml v1.3.10 + libmatroska v1.5.2 / Lavf60.4.101Īttachments : Roboto-Medium.ttf / Roboto-MediumItalic.ttf / arial.ttf / arialbd.ttf / comic.ttf / comicbd.ttf / times.ttf / timesbd.ttf / trebuc.ttf / trebucbd.ttf / verdana.ttf / verdanab.ttf / CONSOLA.TTF / CONSOLAB.Ffmpeg -i dvbt_Stream.ts -vcodec copy -acodec copy -f mpegts -| ffmpeg -hwaccel qsv -vcodec h264_qsv -f mpegts -i pipe: -vcodec h264_qsv -vf deinterlace_qsv -y test.ts Writing application : mkvmerge v45.0.0 ('Heaven in Pennies') 64-bit Movie name : Kimetsu no Yaiba: Katanakaji no Sato-hen 05

mkv' -map 0 -c:v h264_qsv -preset veryslow -global_quality 20 -profile:v high -level 40 -refs 4 -color_primaries bt709 -color_trc bt709 -colorspace bt709 -pix_fmt nv12 -acodec copy -scodec copy ' Kimetsu no Yaiba: Katanakaji no Sato-hen 05 1080p.

Ffmpeg -hide_banner -v verbose -i ' Kimetsu no Yaiba - Katanakaji no Sato-hen - 05 (1080p).

H264_qsv