![]() Handbrake defaults to M4V if you are using features that Apple's simpler player designed for music doesn't support. Apple started using the M4V extension for MP4 files that contain video, despite that it's easy for anything that understands the MP4 format to just look in the file and see if it contains video or just audio.įrom Handbrake's point of view nothing changes but the extension. ![]() The Apple Quicktime and/or iTunes player had (or still have?) an issue where it doesn't recognise MP4 as a video extension since Apple also made heavy use of the MP4 container format for music files which are audio-only, so it wouldn't play certain videos with that extension. It's the same file, just a different extension. M4V is an alternative file extension you can use for the MP4 format. So my first suggestion to OP, while him using Handbrake (software libx264b or libx265 implementation), is to try a few different values for CRF and see if the problem persists with significantly lower values than default preset, i.e. You can tune the output bitrate (VBR) with the CQ option of NVEnc in the same way as with the CRF option of libx264. And FFMPEG is a interface to collection of encoders like X265.Being honest, I've never bothered with GUI frontends for ffmpeg so I ignored the existence of Handbrake as a whole just CLI and the good user manual make wondersīTW after some experiments, I've found NVEnc (NVidia hardware-accelerated) encoder to be a few times faster on my hardware compared to libx264, given both similar output video quality and 3-5% larger bitrate (and filesize, respectively). ![]() ZRGARDNE wrote:Do realize Handbrake, and shutter encoder, are just user friendly GUIs for FFMPEG.
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