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Autres articles (72)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (5367)

  • Cannot reproduce Sony Vegas AVC output with ffmpeg

    24 septembre 2017, par RandomGuy

    I need to get a very specific H.264 elementary stream file for a decoder I own and actually the only software able to create such files is Vegas Pro.

    In mediainfo this is the info I get about the stream :

    Video
    
Format                                   : AVC
    
Format/Info                              : Advanced Video Codec
    
Format profile                           : Baseline@L3.1
    
Format settings                          : 3 Ref Frames
    
Format settings, CABAC                   : No
    
Format settings, RefFrames               : 3 frames
    
Format settings, GOP                     : M=1, N=15
    
Bit rate mode                            : Variable
    
Maximum bit rate                         : 2 000 kb/s
    
Width                                    : 960 pixels
    
Height                                   : 544 pixels
    
Display aspect ratio                     : 16:9
    
Frame rate                               : 29.970 (30000/1001) FPS
    
Standard                                 : NTSC
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Color range                              : Limited

    The file in particular is provided with Access Unit delimiters.
    Is it possible to replicate the same output with ffmpeg ?

  • Fast Video Streaming and Upload Android

    6 avril 2016, par vminind

    Fast Streaming & Uploading Videos On Mobile Apps with AWS S3

    Im developing a app witch has Android, iOS Clients were users can upload videos and photos and view as news feed. I store my video file on Amazone s3. Video length is limited to 30sec.

    When user is uploading 30 sec video from their gallery there are some high quality videos witch is even exceed 100MB so those video files take ages to upload. So i tried to convert them before upload using ffmpeg-android library but it also take almost same amount of time to convert the file so it seems this solution also point less. (convert in the scene reducing the video resolution and frame rate)

    Im using ExoPlayer to play videos

    Note : Videos uploading from iOS are not that huge files.

    I want videos to upload fast and stream fast. Its big help if anyone can share their thoughts on this.

  • Creating a TS output from a very short MP4 (AVC) input

    6 novembre 2018, par Kumar Swaminathan

    I tried to use ffmpeg to convert a small (2 frames) MP4 file with AVC encoding as follows :

    ffmpeg -y -noautorotate -loglevel 99 -i inputfile.mp4 -threads 0 -map_chapters -1 -write_tmcd 0 -metadata location= -max_muxing_queue_size 2000 -f mpegts -filter_complex "[0:v:0]yadif=deint=interlaced,scale=162:288:flags=bicubic,setdar=0.5625[main] ;[main]concat=n=1:v=1:a=0[cat_v]" -an -sn -map "[cat_v]" -vcodec libx264 -profile:v baseline -level 3 -b:v 272k -maxrate 272k -bufsize 2448k -preset medium -x264opts ref=1:keyint=90:no_scenecut -r 30.0 -vsync 1 -metadata:s:v rotate= -pix_fmt yuv420p outputfile.ts

    But what I get is a TS file that cannot be played by any player. I tried using TSReaderLite to analyze the outputfile.ts but found the limited information I get is this : 4 PIDs in all - a PID 0x000 - PAT (Program Metadata), a PID 0x0011 - SDT (service Description Table), a PID 0x0100 - unknown, a PID 0x1000 - unknown.

    Is there a known issue with TS outputs when we have such short files ?

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