mp4 video that seems to have the same quality of the original (so successfully lossless?) but has more than double the size of the original and still has audio sync problems on Premiere. mp4 video (with lower or same size of the original input video) hoping it won't keep the problems when imported in Premiere.įfmpeg -i input.mp4 -c:v libx264 -crf 0 -c:a copy output.mp4įfmpeg -i input.mp4 -c:v libx264 -preset veryslow -qp 0 output.mp4įfmpeg -i input.mp4 -vcodec libx264 -crf 20 output.mp4īut I always got an. Then I tried some command of ffmpeg to try to have an output lossless. m4v that has a lower size then the original file and a lower quality but it doesn't have anymore the problems when I import it in Premiere (maybe it's something related to constant or variable frame rate?) I tried to convert these videos with HandBrake leaving the H264 codec, the resulting file is a.
mp4 (with H264 codec) videos, when I import them in Adobe Premiere sometimes they're speeded up and sometimes they have no sync between audio and video. Sorry if my questions are a bit stupid but I just started to use ffmpeg and I'm not an expert about formats and encoder.
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