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• ffmpg full album video - multiple audio files one after another

  21 août 2019, par Martin

  I am trying to write an ffmpeg command which will take an image (jpg) and multiple audio files (in this case, lets say 3 mp3 files) and create an mp4 video where each audio file comes one after another (first audio file, then second, then third, etc... no overlap, files play in order one after another).

  I am currently using this command to export a single mp3 file and jpg into an mp4 :

  ffmpeg -loop 1 -y -i "media/pic.jpg" -i "media/01 song name.mp3" -shortest -acodec copy -vcodec mjpeg -s 1920x1080 "outputVideo.mp4"

  Is it possible to combine multiple audio tracks into the video using one command ?

  In the past I was using this command seperately to generate a single audio track made up of multiple audio inputs in order :

   ffmpeg -i '01 - Funky Carla.mp3' -i '02 - Take This Day Away.mp3' -i '03 - Youre The One I Love.mp3' -filter_complex '[0:0][1:0][2:0]concat=n=3:v=0:a=1[out]' -map '[out]' -b:a 320k fullAudio.mp3

  And then just using that track to export one video, but this process takes two separate ffmpeg commands, is long and slow, and produced a huge video file.

  Should I use something like amix / amerge / map ? Any advice/ideas is appreciated, thanks.

• NodeJS FFMPEG : Issues combining the crops and the trims

  18 mars 2024, par Lqmnn B.

  I'm building a video editor where I can trim multiple clips and adjust the videos by cropping each clip. For example the first clip is centered in the middle and the second clip would be centered at the very right (for more details it's to crop a vertical format from a landscape video). And the goal is obviously to merge every clip in the end into one video.

  


  I currently use this to trim and crop. :

  


  // Constructing the filter string dynamically based on trim times
            const filterString = metadata.trim_times.map(({ start, end }) => `between(t,${start},${end})`).join('+');

            // FFMPEG command to trim the video based on the dynamic filter string
            await ffmpeg.current?.run(
                '-i', 'input.mp4',
                '-vf', `select='${filterString}',setpts=N/FRAME_RATE/TB,crop=(ih*9)/16:ih:${sliderValue}-((ih*9)/32):(in_h-out_h)/2`,
                '-af', `aselect='${filterString}',asetpts=N/SR/TB`,
                'output.mp4'
            );


  


  An idea I had was to loop my filterString const and trim/crop but then to concat i don't really know if that exists :/

  


  I'd love to have some help with that, and please ask me if you need more details on the code 🙂
Thanks in advance !

  


• 3 million downloads for Piwik Analytics

  11 janvier 2017, par Matthieu Aubry — Community

  A testament to the power of our mission statement…

  “To create, as a community, the leading international open source digital analytics platform, that gives every user full control of their data.”

  … Piwik has been downloaded more than 3 million times !

  

  Piwik is the most popular open analytics platform

  Piwik is the number one most popular open analytics platform, used on more than 1 million websites in 200 different countries, and the 7th overall most popular analytics tool.

  Together we can make Piwik even better !

  Piwik is a community project. We are so proud of what we have created and would love your help too ! Help us by filling in our community survey (takes just 5 minutes !), by getting involved or becoming a sponsor.

  Thank you so much for using Piwik and respecting privacy while keeping control of your data.

  Happy Analytics !