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Autres articles (48)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Monitoring de fermes de MediaSPIP (et de SPIP tant qu’à faire)

    31 mai 2013, par

    Lorsque l’on gère plusieurs (voir plusieurs dizaines) de MediaSPIP sur la même installation, il peut être très pratique d’obtenir d’un coup d’oeil certaines informations.
    Cet article a pour but de documenter les scripts de monitoring Munin développés avec l’aide d’Infini.
    Ces scripts sont installés automatiquement par le script d’installation automatique si une installation de munin est détectée.
    Description des scripts
    Trois scripts Munin ont été développés :
    1. mediaspip_medias
    Un script de (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (7541)

  • how to download panopto videos using ffmpeg ?

    22 novembre 2022, par RainBat

    I want to download a panopto video, which has two separate streams, a main and secondary.
    
for example :Getting Started welcome to Panoptoenter image description here

    


    when i download each of them with ffmpeg using ffmpeg -i INDEXLink -c copy "FileName.mkv",
they aren't of same length one is 4:08 and the other is 3:24, this is just in this example in other videos it might be double the other in length.
    
is it possible to download the two streams as they are displayed in the website under length 3:24 ?

    


  • How to download video by url using ffmpeg-python

    22 novembre 2022, par puf

    I'm trying to write script that will be downloading part of youtube video by url. I'm using ffmpeg + ffmpeg-python library.

    


    I have terminal command that I want put to python code.

    


    ffmpeg -i "url_to_download" -ss 00:00:15 -t 00:00:25 -c:v copy -c:a copy "demo.mp4"


    


    url_to_download is an youtube stream url that I get like in an answer to another question https://stackoverflow.com/a/57134397/6583203

    


    I started writing script

    


    import ffmpeg

FROM = "00:00:15"
TO = "00:00:25"
TARGET = "demo.mp4"

ffmpeg.input(url_to_download, ss=FROM, t=TO)


    


    But I don't know how to pass parameters -c:v copy -c:a copy "demo.mp4" to ffmpeg.input

    


    Do not advice me to use subprocess. I have the same error like in a following question : Python ffmpeg won’t accept path, why ?

    


  • FFMPEG M3U8 Download Is Shortened When Processed

    19 décembre 2022, par Devin Dixon

    I am downloading an m3u8 stream with FFMPEG as such :

    


    timeout 60m ffmpeg -i [feed_url] -movflags isml+frag_keyframe+faststart -bsf:a aac_adtstoasc -vcodec copy -c copy [save_file].mp4


    


      

    • The timeout will automatically end the stream after 60. minutes

      • 


    • The -movflags isml+frag_keyframe+faststart makes sure the moov atom is present for partial downloads and if the stream is cut off.

      • 


    


    This works fine when I play it in Quicktime or Safari.The stream is then uploaded to another server and it gets processed with this ffmpeg command :

    


    ffmpeg  -i [input_file] -y  -f mp4 -pix_fmt yuv420p -c:v libx264 -c:a aac -filter_complex "scale='if(gt(iw,1920),1920,-1)':'if(gt(ih,1080),1080,-1)':force_original_aspect_ratio=decrease" -crf 20 -movflags faststart -max_muxing_queue_size 9999 -attempt_recovery 1 -max_recovery_attempts 3 -f mp4 [output_file]


    


    When the above command is run, sometimes this error occurs :

    


    [mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] Packet corrupt (stream = 0, dts = 53801910).=  64x     
[NULL @ 0xaaaafcd649b0] Invalid NAL unit size (1186 > 532).
[NULL @ 0xaaaafcd649b0] missing picture in access unit with size 542
/code/partners/tmp/video_634d29a2e1f6e.mp4: corrupt input packet in stream 0
[h264 @ 0xaaaafd1211f0] Invalid NAL unit size (1186 > 532).
[h264 @ 0xaaaafd1211f0] Error splitting the input into NAL units.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x3802b2: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x380791: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x380c38: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x380f8d: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x38137a: partial file
Error while decoding stream #0:0: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0xaaaafcd63b70] stream 0, offset 0x381750: partial file
[mp4 @ 0xaaaafcd743d0] Starting second pass: moving the moov atom to the beginning of the file
frame= 8967 fps=923 q=-1.0 Lsize=    5683kB time=00:09:57.60 bitrate=  77.9kbits/s speed=61.5x    
video:5580kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.843884%


    


    When this error occurs, the video is cut short. If the full video is 60 minutes that error occurs at the 10 minute mark, the converted video will only be 10 minutes. What is that error and how can I get ffmpeg to stop cutting the output video short ?

    


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