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Autres articles (91)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • Participer à sa documentation

    10 avril 2011

    La documentation est un des travaux les plus importants et les plus contraignants lors de la réalisation d’un outil technique.
    Tout apport extérieur à ce sujet est primordial : la critique de l’existant ; la participation à la rédaction d’articles orientés : utilisateur (administrateur de MediaSPIP ou simplement producteur de contenu) ; développeur ; la création de screencasts d’explication ; la traduction de la documentation dans une nouvelle langue ;
    Pour ce faire, vous pouvez vous inscrire sur (...)

  • Gestion de la ferme

    2 mars 2010, par

    La ferme est gérée dans son ensemble par des "super admins".
    Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
    Dans un premier temps il utilise le plugin "Gestion de mutualisation"

Sur d’autres sites (7831)

  • Subtitles aren't being burnt into the video | embedding srt into video frames [closed]

    29 février 2024, par X3R0

    Describe the bug

    


    I'm trying to burn a subtitles.srt file onto the video (having the subtitle embeded within the frames themselves)

    


    To Reproduce

    


    both `input.mp4` and `subtitles.srt` are available to the WASM FFMPEG FS
const converted = await ffmpegRef.current.exec([
    '-i', "input.mp4", // Input File
    '-i', 'subtitles.srt',  // Burn subtitles into video
    '-vf', 'subtitles=subtitles.srt',  // Burn subtitles into video
    "output.mp4" // Output File
]);


    


    Expected behavior

    


    The Subtitles should be burned into the video.

    


    Desktop :

    


      

    • OS : Windows 10

      • 


    • Browser Chrome

      • 


    • Version 122.0.6261.94 (Official Build) (64-bit) (cohort : M122 Rollout)

      • 


    


    Additional context

    


    Example extract from the subtitles.srt file

    


    1
00:00:00,280 --> 00:00:01,379
Hi,

2
00:00:01,379 --> 00:00:01,679
and

3
00:00:01,679 --> 00:00:01,980
welcome

4
00:00:01,980 --> 00:00:02,200
to

5
00:00:02,200 --> 00:00:03,220
ClipDrop.

6
00:00:03,799 --> 00:00:03,919
Congratulations

7
00:00:03,919 --> 00:00:04,400
on

8
00:00:04,400 --> 00:00:04,719
being

9
00:00:04,719 --> 00:00:05,040
selected

10
00:00:05,040 --> 00:00:05,259
to

11
00:00:05,259 --> 00:00:05,480
do


    


  • FFMPEG Video to still images and back to video loss less

    4 novembre 2012, par Rigoni

    I'm trying to extract image from an uncompressed AVI video using ffmpeg with the command :

        ffmpeg -i sorce.avi -f image2 -pix_fmt bgr24 images/%1d.bmp

    All is ok, but now I need to revert these images back to a video file.
    I'm trying using this command :

        ffmpeg -f image2 -r 24 -i marked/%1d.bmp -y -vcodec ffv1 -pix_fmt bgr24 test.avi

    But, the output video is compressed and with bad quality.

    Is there any way to extract the images in RGB format and than back to a lossless video ?

    I also tryed to use -vcodec rawvideo, but the quality still bad.

    Best regards.

  • Extracting parts of video and make a new video with them [on hold]

    13 février 2014, par Filippo

    I need to extract parts of a video and make a video (in order to make a summary).
    My videos are mostly mpg, sometimes avi.

    I'm using ffmpeg to do it :

    Extraction : ffmpeg -ss XX -t XX -i video.mpg -vcodec copy -acodec copy partX.mpg

    Concatenation : ffmpeg -i concat:part1.mpg|part2.mpg|... -vcodec copy -acodec copy summary.mpg

    I have two problems :

    • ffmpeg only let me set position by time reference and not by frame number. I will prefere to set it by frame number, but it's not a big deal
    • the resulting video is...bad. The transitions between extracted parts are not smooth at all.

    What is the best way to do that ?
    I guess I need some kind of non-linear editing library : gnonlin, gtreamer-editing-services (but no package for Fedora 16 ?), MLT...

    But how I can do that easily ? (in preference in python)

    I can't find any good example.

    Thanks.

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