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Autres articles (66)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (7247)

  • FFmpeg batch file - combine individual set files with randomized selection from another set of files

    4 août 2018, par Siampu

    I need to combine a specific set of files with a randomized selection from another set of files ; for more specific context, voice clips followed by a randomized walky-talky beep. At the moment, I’ve managed to assemble this so far from searching around :

    setlocal EnableDelayedExpansion
    cd beeps
    set n=0
    for %%f in (*.*) do (
       set /A n+=1
       set "file[!n!]=%%f"
    )
    set /A "rand=(n*%random%)/32768+1"
    cd ..
    for %%A IN (*.ogg) DO ffmpeg -y -i radio_beep.wav -i "%%A" -i "beeps\!file[%rand%]!" -filter_complex "[0:a:0][1:a:0][2:a:0]concat=n=3:v=0:a=1[outa]" -map "[outa]" "helper\%%A"

    At the moment, this will only run the randomization once and use that selection for every file. How can I have it do the randomization for each .ogg in the folder, and get that into FFmpeg as an input ?

  • MPD MPEG-DASH - Shows only one bitrate

    13 août 2018, par Justin Rec

    Help. I wont show bitrate.
    player.getBitrateInfoListFor("video") ;
    Shows only one bitrate - 454948

    manifest.mpd generated by GPAC

    <period duration="PT0H21M48.338S">
     <adaptationset segmentalignment="true" group="1" maxwidth="270" maxheight="480" maxframerate="2070000/93437" par="270:480" lang="und">
      <representation mimetype="video/mp4" codecs="avc3.640015" width="270" height="480" framerate="2070000/93437" sar="1:1" startwithsap="1" bandwidth="454948">
       <segmenttemplate media="480_bbb/segment__track1_$Number$.m4s" timescale="2070000" startnumber="1" duration="8280000" initialization="480_bbb/segment__track1_init.mp4"></segmenttemplate>
      </representation>
     </adaptationset>
     <adaptationset segmentalignment="true" group="1" maxwidth="202" maxheight="360" maxframerate="2070000/93437" par="202:360" lang="und">
      <representation mimetype="video/mp4" codecs="avc3.64000D" width="202" height="360" framerate="2070000/93437" sar="1:1" startwithsap="1" bandwidth="281508">
       <segmenttemplate media="360_bbb/segment__track1_$Number$.m4s" timescale="2070000" startnumber="1" duration="8280000" initialization="360_bbb/segment__track1_init.mp4"></segmenttemplate>
      </representation>
     </adaptationset>
     <adaptationset segmentalignment="true" group="1" maxwidth="134" maxheight="240" maxframerate="2070000/93437" par="134:240" lang="und">
      <representation mimetype="video/mp4" codecs="avc3.64000B" width="134" height="240" framerate="2070000/93437" sar="1:1" startwithsap="1" bandwidth="182832">
       <segmenttemplate media="240_bbb/segment__track1_$Number$.m4s" timescale="2070000" startnumber="1" duration="8280000" initialization="240_bbb/segment__track1_init.mp4"></segmenttemplate>
      </representation>
     </adaptationset>
     <adaptationset segmentalignment="true" group="1" maxwidth="80" maxheight="144" maxframerate="2070000/93437" par="80:144" lang="und">
      <representation mimetype="video/mp4" codecs="avc3.640009" width="80" height="144" framerate="2070000/93437" sar="1:1" startwithsap="1" bandwidth="99667">
       <segmenttemplate media="144_bbb/segment__track1_$Number$.m4s" timescale="2070000" startnumber="1" duration="8280000" initialization="144_bbb/segment__track1_init.mp4"></segmenttemplate>
      </representation>
     </adaptationset>
     <adaptationset segmentalignment="true" lang="und">
      <representation mimetype="audio/mp4" codecs="mp4a.40.2" startwithsap="1" bandwidth="66056">
       <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="1"></audiochannelconfiguration>
       <segmenttemplate media="audio_bbb/segment__track2_$Number$.m4s" timescale="48000" startnumber="1" duration="192000" initialization="audio_bbb/segment__track2_init.mp4"></segmenttemplate>
      </representation>
     </adaptationset>
    </period>

    player.getBitrateInfoListFor("video") ;
    Shows only one bitrate - 454948

  • FFMPEG zoompan only applies and shows 3 images out of the many

    26 mai 2018, par Sanjyot Shah

    I am trying to generate a video from images using FFMPEG 4.0 windows built on AWS windows instance using PHP.

    $command2="ffmpeg -r 1/5 -i https://<path>/$images%d.jpg -c:v libx264 -r 5  -t $total_video_time -y  ".trim($video_name)." -i http://<path>/$audio ";
    </path></path>

    The above generates the correct video output with all the input images (50 in this case) but without the zoompan effect on the images.

    Now I try to add the zoompan effect for the images using -

    $command2="ffmpeg -r 1/5 -i https://<path>/$images%d.jpg  -filter_complex zoompan=z='zoom+0.002':d=25*4:s=1280x800 -pix_fmt yuv420p  -c:v libx264 -r 5  -t $total_video_time -y  ".trim($video_name)." -i http://<path>/$audio ";
    </path></path>

    This will only pick up the first 3 images and apply the zoompan to the first two images or so.

    Can you please help me with this issue ? Any inputs, pointers are welcome too.