![]() ![]() This article is part of the HandBrake Documentation and was written by Bradley Sepos (BradleyS) and Scott (s55). When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts, 0 to enable (default). When lookahead is enabled, set this to 1 to enable adaptive B-frame decision (default), 0 to disable. Number of frames to look ahead for rate control. Set to 1 to enable weighted prediction, 0 to disable (default). Set to 1 to minimize GOP-to-GOP rate fluctuations, 0 to disable (default). Set to 1 to enable automatic insertion of non-reference P-frames, 0 to disable (default). When Spatial AQ is enabled, the values scale is 1 (low) – 15 (aggressive). Set to 1 to enable Spatial Adaptive Quality, 0 to disable (default). Set to 1 to enable Temporal Adaptive Quality, 0 to disable (default). Values: any (default), 0 (first GPU), 1 (second GPU), etc.Ĭoder selection. See the option’s comments for acceptable values. The following value types are supported (each option only accepts one value type):Ī number that can be written without a fractional or decimal component.Īn alphanumeric string of characters. If using HandBrake’s command line interface, use the -encopts parameter as follows: -encopts="option1=value1:option2=value2" If using HandBrake’s graphical interface, you can set the options in the Advanced Options field on the Video tab in the following format: option1=value1:option2=value2 Generally speaking, it is not recommended to change these parameters, as the built-in presets offer a good range of options for common uses. The NVIDIA NVENC hardware encoder has a limited set of advanced encoder options. HandBrake will automatically fallback to software decoding when any filter is enabled in the pipline. To minimize this effect, disable any filters that you do not require. It is also common, particularly on lower-end or older hardware, for the CPU to be a bottleneck which will cause lower than expected performance. As such, it is normal to see high (or even 100%) CPU utilisation even when using NVENC. These operations all happen in parallel as the job progresses.
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