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  • Soumettre bugs et patchs

    10 avril 2011

    Un logiciel n’est malheureusement jamais parfait...
    Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
    Si vous pensez avoir résolu vous même le bug (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • 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 (...)

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  • Concat three videos with one audio [duplicate]

    26 septembre 2018, par Михаил Безуглый

    This question already has an answer here :

    Thank you for coming here.
    I have three video clips (the first is 3 seconds, the second is 20 seconds, the third is 2 seconds), I connect them using the following command :

    ffmpeg -i opening.mp4 -i middle.mp4 -i ending.mp4 -filter_complex "[0:v] [1:v] [2:v] concat=n=3:v=1 [v]" -map "[v]" output.mp4

    Since all three videos do not have audio tracks, I do not need to include [a]. And then the day came when I needed it. I have an audio track,
    duration of 35 seconds(which is much larger than the output.mp4 video) and I need this audio to be connected to the whole video.
    1) Do I need to crop the video to the length that is obtained by merging all three videos ?
    2) Is it possible to do this with one command, or i need first have to concatetate all together with my command, and then merge video and audio track ?

  • Python FFmpeg : Single static image coupled with audio outputs massive file size

    15 décembre 2019, par Cryptonaut

    I’m using this Python library to programmatically generate a video using a single static image (.PNG - 3.05 MB - 1920 x 1080) and an audio track (.WAV - pcm_s24le (24 bit) - 48000 Hz - 34.6 MB) as input.

    I’m using this technique to speed up the video generation process.

    However, the final file size of output_video_final is 2.33 GB. Considering my input file sizes (.PNG - 3.05 MB / .WAV - 34.6 MB), why is the final .MOV output so large ?

    Here’s my code :

        '''
    
    Generate .MOV using static image as input
    
    '''
    
    image = ffmpeg.input(input_image, loop='1', t='00:00:1', framerate='24000/1001', probesize='42M')
    

    
    output = ffmpeg.output(image, output_video,
    
    f='mov',
    
    vcodec='prores_ks',
    
    vprofile='3',
    
    pix_fmt='yuv422p10le',
    
    g='120',
    
    video_track_timescale='24000',
    
    movflags='use_metadata_tags',
    
    timecode='00:00:00:00',
    
    color_primaries='bt709',
    
    color_trc='bt709',
    
    colorspace='bt709',
    
    qcomp='1',
    
    preset='veryfast',
    
    bsf='prores_metadata=color_primaries=bt709:color_trc=bt709:colorspace=bt709',   
    
    vf='scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709')
    

    
    output.run()
    

    
    '''
    
    Generate .MOV using static image .MOV in previous output
    
    and combine with audio input
    
    '''
    
    audio = ffmpeg.input(input_audio, filter_complex='channelsplit')
    
    video = ffmpeg.input(output_video, t='00:02:06', stream_loop='126')
    

    
    output = ffmpeg.output(video, audio, output_video_final,
    
    vcodec='copy',
    
    acodec='pcm_s24le',
    
    audio_bitrate=bitrate)
    

    
    output.run()

  • Why does audio stop when rewinding video collected using ffmpeg ?

    12 mai 2020, par Vlad F

    The resulting video correctly plays only sequentially. If you jump to an arbitrary point, audio and subtitles fall off.

    



    The timing of the video files are identical.

    



    ffmpeg.exe -y -i as.mkv -i hd.mkv -codec copy -map 1:v -map 0:a -map 0:s final.mkv


    



    Log - pastebin.com/pihPfHTq

    


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