On Sat, Aug 1, 2015 at 2:24 AM, vedran <[email protected]> wrote: > Hello, > > few days ago i tried to get somebody to prepare some ffmpeg commands for me > with detail requirements what i need. Unfortunately other than few > comments, nobody appeared. > > I'm prepared to pay 100$ for following, if you think it is not enough, say > and explain why. If the task is completed properly, we could have > continuous contract > > If you are not interested to work or help, don't mess the thread. > > > 1. I would give you about 30 videos as a sample for input, various formats, > usually from mobile phones and home cameras > > 2. I need JUST command/s which would: > - Reduce resolution if the source video is greater than 1024px width.
-vf "scale=min(iw\,1024):-2" > - Keep the format proportional The above filter already does this. > - Keep proper audio quality of any source video Not sure what you mean. If you don't want to re-encode the audio you can copy the stream. -acodec copy > - Preserve as good as possible quality/bitrate ratio of the video. > - Video to be playable in html5 player (videojs) on iphone 3 and above (so > that the bitrate is not more than iphone can play or that it is not higher > resolution than iphone can handle) -vcodec libx264 -profile:v baseline -pix_fmt yuv420p I don't know what the maximum bitrates for the iPhone 3 are. But you can specify maximum and minimum bitrates as described here: https://trac.ffmpeg.org/wiki/Limiting%20the%20output%20bitrate > - have two outputs, one with flv and another with mp4 (no ogg or any other > formats) At the end of the filter chain you can use the split filter to create two outputs. https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs Eg: -filter_complex "scale=min(iw\,1024):-2,split=2[one][two]" -map "[one]" one.flv -map "[two]" two.flv For each output you can specify the encoding options after the -map option. Eg -vcodec libx264 -profile:v baseline etc ... Hopefully that helps. Regards, -Jonathan. > > Environment is Debian squeeze with packages from multimedia repository. If > recompiling is needed, i would appreciate just basic guidelines. Nobody > needs to do that for me. > I don't need any script, batch file or so, just simple commands. > > > And that is about it. > > IF ANY additional codecs or something else needs to installed, everything > is possible. > > Please just contact me. > > Greetings > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
