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Autres articles (102)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (9883)

  • How to create a DASH VOD for Chromecast with ffmpeg ?

    19 novembre 2020, par Oleg Yablokov

    I need to serve long videos ( 2 hours) from a web server to mobile clients and the clients should be able to play the videos via Chromecast. I have chosen mpeg-dash for this purpose : video encoder is h.264 (level 4.1), audio is aac (although I've tried diffrent ones).

    


    I've tried ffmpeg, MP4Box and some other tools to generate videos ; most of the time I succeeded playing them on VLC or on a mobile client (locally), but not with Chromecast.

    


    I've tried Amazon's Elastic Transcoder and it worked, but it gave me one big file whereas I need many small segments.

    


    CORS are set.

    


    Chromecast remote debugging didn't help much.

    


    Do you know how to do this ?

    


  • Encoding and segmenting HD video for DASH [closed]

    13 mars 2013, par user2163937

    I am trying to encode video for implementing DASH, for encoding I am using this command line...

    ffmpeg -i sample.ts -f mpegts -acodec libfaac -ar 44100 -ab 64k -s 480x270
    
-vcodec libx264 -b 500k -r 25 -flags +loop -partitions
    
+parti4x4+partp8x8+partb8x8 -subq 5 -refs 6  -keyint_min 10 -i_qfactor 0.71 
    
-maxrateD 500k -bufsize 500k -rc_eq 'blurCplx^(1-qComp)' -qmin 10 -qmax 51
    
-qdiff 4 -level 30 -aspect 16:9 -g 30 -async 2 out.ts

    For segmentation I use this command line

    ffmpeg -i out.ts -c copy -map 0 -f ssegment -segment_time 4 -segment_list
    
out.list seg%d.ts  

    And I use the various resolutions and parameters according to the table given in this link.

    Given resolutions and parameters are working fine for me, I can able to get smooth transition among various resolutions. But problem arises when I try to use HD resolution i.e 1280x720, there is a visible flicker when video switches from HD to other resolution or vice-versa. I cannot figure out the problem.

  • Concatenate DASH audio and video to single file

    13 mars 2017, par Andreas

    First of all, I have a folder with about 200 video and audio segments (m4v and m4a) of a video that was live streamed as DASH video. Now - without having the original file - I want to concatenate those parts to a single, playable video file.

    To mention what I already tested :

    • concatenate via the Unix terminal command cat ; unfortunately this won’t help to make the video playable in any media player again
    • using ffmpeg’s merge abilities via files.txt ; with the same unsuccessful result

    I’m definitely not an expert (otherwise I probably wouldn’t ask) but the problem may be also the missing mpd and/or init file (as far as I could skim in the standard).

    Don’t get me wrong : I don’t want to get a bit to bit identical result of the original file. All I want to achieve is a single playable mp4 file of aforesaid video.

    I also tried to make a own mpd file, but the "stream" won’t play. FYI, I tried playing it in the current VLC 3.0.0 git, since the current stable versions seems not to support DASH.
    If it helps, here the video codec :

    id="live-hd_H264"
    
mimeType="video/mp4"
    
codecs="avc1.4d401f"
    
width="396"
    
height="704"

    So, can anybody help me ?

    Kind regards !

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