Recherche avancée

Médias (91)

Autres articles (96)

  • 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 ;

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (9611)

  • Convert a file to match another's specification exactly with FFMPEG ?

    25 mars 2022, par user1748217

    I have a series of files from the same source and so of the exact same format in every way that I'm concatenating with FFMPEG

    


      

    • file1.mov

      • 


    • file2.mov

      • 


    • file3.mov

      • 


    


    This is very fast and is working fine however no I want to take optional intro file (from many different source and of many different types) and convert that to match the others before joining.

    


      

    • intro.mp4

      • 


    


    How do I do this with FFMPEG ?

    


    Does this give me everything I need ?

    


    ffprobe -select_streams a:0 -show_entries \
  stream=codec_name,channels -of default=nw=1:nk=1 -v 0 ./file1.mov

ffprobe -select_streams v:0 -show_entries \
  stream=codec_name,width,height,r_frame_rate,pix_fmt \
  -of default=nw=1:nk=1 -v 0 ./file1.mov


    


    So with that I can just :

    


    ffmpeg -i intro.mp4 \ 
   -c:v h264 -s 1280x720 -pix_fmt yuv420p -framerate 30/1  \ 
   -c:a pcm_s16le -ca 1 intro.mov


    


    and then merge it seamlessly to the rest ?

    


    ffmpeg -f concat -safe 0 -i videos.txt -c copy merged.mov -y


    


    The answer is of course "no", hence the request for your support.
The audio is fine when files 1, 2 & 3 are merged but is too fast when the intro + 1, 2 & 3 are merged. The converted intro file always plays fine on it's own after the conversion and after the merge, but the others play audio too fast after the merge.

    


    What am I missing ?

    


    UPDATE :

    


    So in the end this worked for the intro :

    


    ffmpeg -i intro.mp4 \ 
   -c:v h264 -s 1280x720 -pix_fmt yuv420p -framerate 30 \ 
   -c:a pcm_s16le -ac 1 -b:a 512k -ar 32000 intro.mov -y


    


  • float_dsp : Have implementation match function pointer prototype

    1er novembre 2016, par Diego Biurrun
    float_dsp : Have implementation match function pointer prototype

    libavutil/x86/float_dsp_init.c(144) : warning C4028 : formal parameter 1 different from declaration
    
libavutil/x86/float_dsp_init.c(144) : warning C4028 : formal parameter 2 different from declaration
    • [DBH] libavutil/x86/float_dsp_init.c

  • avconv : Match stream id

    12 mars 2014, par Luca Barbato
    avconv : Match stream id

    Quite useful to select by pid in MPEG-TS.
    • [DBH] cmdutils.c
    • [DBH] doc/avtools-common-opts.texi

Navigation