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Autres articles (35)

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (5752)

  • Loop a song for a certain amount of time using FFMPEG

    10 avril 2017, par Eduardo Perez

    So, I am trying to loop a song from a video game for one hour, using FFMPEG on Linux or in Windows 10 Bash. I have 3 versions of the song, they are as follows :

    1.Full song in OGG format with LOOPSTART and LOOPLENGTH metadata.
    
2.Same song in OGG format, except only the segment before LOOPSTART.
    
3.Same song in OGG format, except only the segment from LOOPSTART to LOOPSTART+LOOPLENGTH.

    So, what I want to do is use either the full song file for the loop, which I don’t think FFMPEG supports, or use the files for the beginning and looping portions of the song. Basically, I want to have FFMPEG create a song which starts off with the beginning segment of the song and loops the looping segment indefinitely until an hour has been played. If possible, I also want a second command so I can add an image or an MP4 video to be shown in a loop while the song is being played, but in the case of a video being used to be shown while the song is played, the music from that video won’t be merged with the music from the song. What command should I use for this ?

  • Revision c24d922396 : Add averaging-SAD functions for 8-point comp-inter motion search. Makes first 5

    25 juin 2013, par Ronald S. Bultje

    Changed Paths :
     Modify /vp9/common/vp9_rtcd_defs.sh


     Modify /vp9/encoder/vp9_mcomp.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_sad_c.c


     Modify /vp9/encoder/vp9_variance.h


     Modify /vp9/encoder/x86/vp9_sad_sse2.asm



    Add averaging-SAD functions for 8-point comp-inter motion search.

    Makes first 50 frames of bus @ 1500kbps encode from 3min22.7 to 3min18.2,
    i.e. 2.3% faster. In addition, use the sub_pixel_avg functions to calc
    the variance of the averaging predictor. This is slightly suboptimal
    because the function is subpixel-position-aware, but it will (at least
    for the SSE2 version) not actually use a bilinear filter for a full-pixel
    position, thus leading to approximately the same performance compared to
    if we implemented an actual average-aware full-pixel variance function.
    That gains another 0.3 seconds (i.e. encode time goes to 3min17.4), thus
    leading to a total gain of 2.7%.

    Change-Id : I3f059d2b04243921868cfed2568d4fa65d7b5acd

  • combine specific mpeg-dash segments (ex int.mp4 + seg_1.m4s +seg_3.m4s) into one single mp4 file

    16 avril 2019, par Liquid

    I am working one video transcoding in FFmpeg and MP4Box. Currently I am trying to combine/merge/concatenate specific MPEG-DASH video segments(m4s ex:int.mp4, seg_1.m4s, seg2,m4s,sge5.m4s) into one mp4 file.

    This the example of what I am trying to do.

    I have followed this thread ("Combine MPEG-DASH segments (ex, init.mp4 + segments.m4s) back to a full source.mp4 ?") but there is a problem while combining the specific m4s segments, while doing that it frames feazed in after seg2 and in seg5 it played again.

    Reference : FFmpeg example

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