Note that usage of -profile:v is incompatible with lossless encoding and setting -profile:v high444 does not work. Most modern devices support the more advanced High profile.Īnother reason to use this option is to match other video profiles if you want to concatenate them with the concat demuxer. You can set these profiles with -profile:v baseline or -profile:v main. Some devices (mostly very old or obsolete) only support the more limited Constrained Baseline or Main profiles. You usually do not need to use this option and the recommendation is to omit setting the profile which will allow x264 to automatically select the appropriate profile. The -profile:v option limits the output to a specific H.264 profile. You can see a list of current tunings with -tune help, and what settings they apply with x264 -fullhelp. If you are unsure of what to use or your input does not match any of tunings then omit the -tune option.
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