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  • Qualité du média après traitement

    21 juin 2013, par

    Le bon réglage du logiciel qui traite les média est important pour un équilibre entre les partis ( bande passante de l’hébergeur, qualité du média pour le rédacteur et le visiteur, accessibilité pour le visiteur ). Comment régler la qualité de son média ?
    Plus la qualité du média est importante, plus la bande passante sera utilisée. Le visiteur avec une connexion internet à petit débit devra attendre plus longtemps. Inversement plus, la qualité du média est pauvre et donc le média devient dégradé voire (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

Sur d’autres sites (7787)

  • RTSP Feed Screen Cutoff

    25 août 2021, par Jackson Medina

    Recently I have been trying to consume the RTSP stream from a Vivitar Folding Drone. By reverse-engineering the .apk file for the Vivitar Folding Drone app, I was able to find that the RTSP address for the drone is rtsp://192.168.1.1:7070/webcam however, whenever I consume this stream through VLC or FFPLAY, most of the feed gets cut off and replaced with a green screen or gray screen (depends on whether I save to a .mjpeg file or a .dump file). What is the cause of this problem and what steps can I take to fix it ?

    


    enter image description here

    


    When using FFPLAY, I use the following command :

    


    ffplay -i -rtsp_flags rtsp://192.168.1.1:7070/webcam


    


    I also receive this error when I first start consuming the stream with ffplay :

    


    [swscaler @ 00000240daeadf80] deprecated pixel format used, make sure you did set range correctly


    


    I receive this error message for about every frame of the stream :

    


    [mjpeg @ 00000240d6226b00] mjpeg_decode_dc: bad vlc: 0:0 (00000240d6266050)
[mjpeg @ 00000240d6226b00] error dc
[mjpeg @ 00000240d6226b00] error y=1 x=0


    


    NOTE : I am unsure if this is relevant, but the Vivitar Drone creates its own wifi network that must be signed onto if you want to consume the RTSP stream

    


    Also, the drone feed works perfectly fine when viewed through the Vivitar Folding Drone app. I just can't seem to get it to display properly through FFPLAY, FFMPEG, or VLC.

    


    UPDATE :

    


    Upon further inspection, it seems like the Vivitar Folding Drone may not be sending all of the jpg data for a single frame. Here is an image generated by unaltered byte data sent through the RTSP feed.
enter image description here

    


    I noticed three things from this image :

    


      

    1. The image appears to be missing large chunks of data.
    2. 


    3. The image appears to be redshifted
    4. 


    5. The two visible portions of the image should be sequential (it looks as though the second visual portion lines up with the first). An example of this can be seen below.enter image description here
    6. 


    


  • FFMPEG Screen Cutoff

    18 août 2021, par Jackson Medina

    Recently I have been trying to consume the RTSP stream from a Vivitar Folding Drone. By reverse-engineering the .apk file for the Vivitar Folding Drone app, I was able to find that the RTSP address for the drone is rtsp://192.168.1.1:7070/webcam however, whenever I consume this stream through VLC or FFPLAY, most of the feed gets cut off and replaced with a green screen or gray screen (depends on whether I save to a .mjpeg file or a .dump file). What is the cause of this problem and what steps can I take to fix it ?

    


    enter image description here

    


    When using FFPLAY, I use the following command :
ffplay -i -rtsp_flags rtsp://192.168.1.1:7070/webcam

    


    I also receive this error when I first start consuming the stream with ffplay :

    


    [swscaler @ 00000240daeadf80] deprecated pixel format used, make sure you did set range correctly


    


    I receive this error message for about every frame of the stream :

    


    [mjpeg @ 00000240d6226b00] mjpeg_decode_dc: bad vlc: 0:0 (00000240d6266050)
[mjpeg @ 00000240d6226b00] error dc
[mjpeg @ 00000240d6226b00] error y=1 x=0


    


    NOTE : I am unsure if this is relevant, but the Vivitar Drone creates its own wifi network that must be signed onto if you want to consume the RTSP stream

    


  • how to record screen using ffmpeg with variable framerate

    20 mai 2024, par AJ Dev

    I want to record desktop using ffmpeg with variable framerate.

    


    set a limit of fps to 120fps
now ffmpeg handle automatically that my max limit is 120
if pc is highly configured then record to 120
otherwise record auto fps like 5,10 whatever

    


    i searched on google i found -vsync 2 and -vsync vfr but these are not working.

    


    my command is

    


    ffmpeg -use_wallclock_as_timestamps 1 -re -vsync vfr -thread_queue_size 1024 -rtbufsize 1024 -indexmem 1024 -probesize 32 -analyzeduration 0 -framerate 120 -f rawvideo -pix_fmt rgb32 -video_size 1366x768 -i \.\pipe\testscreen-4c0b1a88-d4d0-4f6a-55a6-c4587a0ccb7c3 -async 1 -thread_queue_size 1024 -rtbufsize 1024 -indexmem 1024 -probesize 32 -f s16le -acodec pcm_s16le -ar 44100 -ac 2 -i \.\pipe\testscreen-d185c2a9-ac89-4966-b8d7-cec897848790 -fflags +genpts -fflags nobuffer -r 120 -vcodec libx264 -crf 21 -pix_fmt yuv420p -preset ultrafast -b:v 0 -maxrate 0 -bf 0 -profile:v high -x264opts "keyint=300:bframes=0:sliced_threads=1:slices=4:lookahead_threads=4:threads=4" -tune zerolatency -movflags +faststart -y -fflags +genpts -c:a aac -strict -2 -b:a 128k "C :\2021-08-16_13-21-38-815.mp4"