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Autres articles (86)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (17301)

  • Can ffmpeg extract closed caption data [closed]

    26 mars, par spinon

    I am currently using ffmpeg to convert videos in various formats to flv files. One request has also come up and that is to get closed caption info out o the file as well. Does anyone have any experience with this or know it can even be done. I don't see any options for it but thought I would ask and see.

    


  • FFMpeg - Freeze First Frame for X seconds

    13 mars 2021, par John Doe

    I need to pause/freeze the first frame of the video for 2 seconds before proceeding to the scroll effect. Here's what I have :

    


    ffmpeg -y -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -loop 1 -i "temp.jpg" -i "floating.png" -filter_complex "[1:v]fps=fps=30,crop=1280:720:0:'t*(ih-oh)/120',overlay,scale=1280x720,drawtext=fontfile='font.ttf':text='text here':x=20:y=675:fontsize=60:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=2,drawtext=fontfile='font.ttf':text='more text':x=w-tw-20:y=670:fontsize=70:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=2[out]" -t 10 -map "[out]" -map "0:a" -shortest -c:v h264_qsv -c:a aac -ac 2 -ar 44100 -vb 30M -r 30 "video.mp4"


    


    Any ideas ?

    


  • Audio/Video drop when merging 3 FFmpeg commands which includes scale, pad, filter complex

    21 novembre 2018, par Mayank

    I am trying to scale 2 videos to h=240 resolution keeping the same aspect ration. Then I am merging the audio and video of these 2 videos to form a single mp4 file. I have 3 commands in total and the final result is good.

    However, I want to combine these 3 commands and get the same result in one single command. Can someone please help me in combing these commands ? Thanks in advance.

    First Command :

    ffmpeg -i 01_v.mp4 -vf "[0]scale=-1:240[scaled_240]; [scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black" -preset ultrafast -y -r pal "1_v.mp4"

    Second Command :

    ffmpeg -i 02_v.mp4 -vf "[0]scale=-1:240[scaled_240]; [scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black" -preset ultrafast -y -r pal "2_v.mp4"

    Third Command :

    ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 1_v.mp4 -itsoffset 0.113192 -i 2_v.mp4 -filter_complex "[1:a]adelay=15726.168|15726.168[a1]; [0:a][a1]amix; [3:v]trim=0:15.726168,geq=0:128:128[silence]; [3:v]fifo[3v]; [silence][3v]concat[3_v_silence]; [2:v]fifo[2v]; [2v][3_v_silence]hstack[out_v]; [out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black" -crf 40 -preset ultrafast -y -r pal "out.mp4"

    I have tried to combine the above 3 commands and formed a single command. However, the result is not good with muted audio for few seconds in the middle of playback, also the 2nd video gets over few seconds earlier. Hence ending up in messing up the audio/video sync.

    This is my single command which doesn’t produce the desired result :

    ffmpeg -i 1_a.opus -i 2_a.opus -itsoffset 0.024181 -i 01_v.webm -itsoffset 0.113192 -i 02_v.webm -filter_complex "[1:a]adelay=15726.168|15726.168[a1]; [0:a][a1]amix; [3:v]trim=0:15.726168,geq=0:128:128[silence]; [3:v]fifo[3v]; [silence][3v]concat[3_v_silence]; [2:v]scale=-1:240[2v_scaled_240]; [2v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[2v_padded]; [3_v_silence]scale=-1:240[3v_scaled_240]; [3v_scaled_240]pad=width=320:height=240:x=(320-in_w)/2:y=(240-in_h)/2:color=black[3v_padded]; [2v_padded]fifo[2v]; [2v][3v_padded]hstack[out_v]; [out_v]pad=width=640:height=480:x=(640-in_w)/2:y=(480-in_h)/2:color=black" -crf 40 -preset ultrafast -y -r pal out.mp4

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