Some camcorder clips with m2ts already have the avc/h264 compatible codec so i just copy the stream. movflags +faststart //move the metadata in the front of the video so it loads faster b:a 128k // audio bitrate 128k is like mp3 192k metadata:s:a language=eng // set a language, visible on modern devices refs 4 // preferred on most modern devices level 3.1 // preferred on most modern devices profile:v main // preferred on most modern devices pix_fmt yuv420p // preferred on most modern devices preset veryslow // placebo,slow,fast,ultrafast=big file crf 21 // try different numbers between 18-26 metadata date=THEDATE // set a nice title, visible on modern devices metadata title=THETITLE // set a nice title, visible on modern devices i INPUTFILE // replace with the input file Said that O'm using the preset at very slow (there is also placebo but the final video file is only 1% smaller in size). ffmpeg allows me to set the -crf (18-24 usually) and -preset (veryslow, fast.) witch allows me to reduce the filesize drastically mantaining the same some had fixed default export setings, most had a lower video quality at the same filesize. I also tested some of them and personally i could not find the proper export settings or i was not impressed by the results.

I read that many expensive video conversion softwares are not able to handle low bitrate videos properly. commandline (i made my simple web interface with default settings wich i execute with php's exec).So much time has passed since i use ffmpeg to convert clips on my home web server, now that mp4 (h264 & aac) is the current overall standard (works on every console, smartphone, smartTV, pc) i decided to convert my old clips from various digital cameras to to this new container/codecs.Īfter some research i opted for ffmpeg because of various reasons

Cuda ffmpeg linux