structure, no look-ahead and lowest possible VBV buffer for the given bitrate and available channel bandwidth, without giving away too much of encoding quality. Typically, latency in (a) can be minimized by choosing infinite GOP with IPPPP. For a typical end-to-end streaming scenario to incur low latency, it is important to lower both components as much as possible. B-frames, look-ahead, VBV buffering), and (b) Latency due to the processing required to encode the bits using hardware or software. But it's 517.48 and not 520 so probably won't make a difference here.A: Video encoding latency consists of two components: (a) Latency due to encoding algorithm (e.g. FFmpeg: Error initializing an MFX session: -3.Ī new NVIDIA driver was released today that I haven't installed, yet. Please explicitly set device type via "-init_hw_device" option. This behaviour will be removed in the future. FFmpeg: WARNING: defaulting child_device_type to AV_HWDEVICE_TYPE_DXVA2 for compatibility with old commandlines. The FFMPEG options string is at the bottom of the window, but can't be edited.Ĭode Loading: encoders/h264_qsv.json Thanks for the help.Īnother question: is there a way to use hevc_nvenc in lossless mode with Voukoder? When I use FFMPEG in command line, I use -c:v hevc_nvenc -preset p4 -tune lossless but I don't see a way to set the tune option. I'm glad you've already solved QSV and I'll try V12 again after NVIDIA releases new drivers. Like I said, I usually use hevc_nvenc, so I didn't notice QSV hasn't been available - possibly for a long time. No QSV encoders are available in Voukoder Integrated graphics drivers were updated from 100.9955 to 101.2111. Loading: filters/atrim.json Display More Encoder initialization failed (Code: -1) Encoder initialization failed (Code: -40) Encoder initialization failed (Code: -1313558101)
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