![]() ![]() To see encoder options for the h264_omx encoder, run: ffmpeg -h encoder=h264_omx And for the aac encoder: ffmpeg -h encoder=aac Then tune the culprit with an acceptable preset and/or settings until an acceptable compromise in quality vs CPU load is reached. ![]() Video - how to use h264_omx on RaspberryPi - Video Production … This … See more If the profile is High 4:4:4 Predictive you can use -crf 0 to create a lossless video, otherwise use -qp 0 (High 10 profile does not support lossless, … See more This method allows the encoder to … See more While -preset chooses the best possible settings for you, you can overwrite these with the x264-params option, or by using the libx264 private … See more Use this rate control mode if you are targeting a specific output file size, and if output quality from frame to frame is of less importance. This is the recommended rate control mode for most uses. ![]() There are two rate control modes that are usually suggested for … See more Use this rate control mode if you want to keep the best quality and care less about the file size. See HWAccelIntrofor information on supported hardware H.264 encoders. If you need help compiling and installing see one of our compiling guides. ![]() It assumes you have ffmpeg compiled with -enable-libx264. I don't know if my ffmpeg has some missing codecs, or the file has no audio stream at the start (which I saw somewhere as a problem, but no documented … c枠とは
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