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  • MediaSPIP Init et Diogène : types de publications de MediaSPIP

    11 novembre 2010, par

    À l’installation d’un site MediaSPIP, le plugin MediaSPIP Init réalise certaines opérations dont la principale consiste à créer quatre rubriques principales dans le site et de créer cinq templates de formulaire pour Diogène.
    Ces quatre rubriques principales (aussi appelées secteurs) sont : Medias ; Sites ; Editos ; Actualités ;
    Pour chacune de ces rubriques est créé un template de formulaire spécifique éponyme. Pour la rubrique "Medias" un second template "catégorie" est créé permettant d’ajouter (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

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  • Converting any video to iPhone - transcoding logic/algorithm ?

    28 septembre 2012, par cajwine

    I have many-many video files in different formats (mostly avi). For example, some relevant lines from ffprobe :

      Duration: 02:27:14.70, start: 0.000000, bitrate: 664 kb/s
    
    Stream #0.0: Video: mpeg4, yuv420p, 608x256 [PAR 1:1 DAR 19:8], 23.98 tbr, 23.98 tbn, 23.98 tbc
    
    Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 96 kb/s
    

    
  Duration: 00:20:51.84, start: 0.000000, bitrate: 3286 kb/s
    
    Stream #0.0: Video: mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
    

    
  Duration: 01:26:01.84, start: 0.000000, bitrate: 845 kb/s
    
    Stream #0.0: Video: mpeg4, yuv420p, 704x544 [PAR 1:1 DAR 22:17], 25 fps, 25 tbr, 25 tbn, 30k tbc
    
    Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
    

    
  Duration: 01:42:25.68, start: 0.000000, bitrate: 952 kb/s
    
    Stream #0.0: Video: h264 (High), yuv420p, 600x244 [PAR 1:1 DAR 150:61], 25 fps, 25 tbr, 25 tbn, 50 tbc
    
    Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 112 kb/s

    As you can see, the bitrates, video-sizes, codecs are vary. Want write a script (bash, perl) what will convert them for iPhone with ffmpeg.

    With googling i found many different ffmpeg profiles, but all profiles are "static", e.g. converts video to same resolution and this is probably not the right way, because i have many different video resolutions with many different bitrates. (this applies for the audio too).

    I'm able write the script - but need help with one basic question.

    I need help with the algorithm how to calculate the values for ffmpeg arguments from the above ffprobe results. E.g. when have video 704x544 and 845kb/s and another video with smaller size 640x480 but 3200kb/s bitrate - how to calculate the "right values" for ffmpeg in the script ?

    What is right algorithm/logic for transcoding video for the desired device ? (in my case iPhone)

    If someone care, I have ffmpeg recompiled with "nonfree" codecs, and have mencoder (from mplayer package) too.

    Second : In the avi containers are many videos already in the mpeg4 format. How to determine the "fastest" converting profile ? Mean a profile, where ffmpeg will only do the less-possible calculations, so probably will leave as-is : the format mpeg4, the size, the bitrate and "only" will change the container format. Is this possible ?

    I was read many ffmpeg SO questions, but not find answers - maybe I missed something. Can somebody point me to some good documents ?

  • Having issues compiling ffmpeg 0.11.1 for iPhone

    1er août 2012, par ron garay

    I'm only asking this because I've successfully built previous versions of ffmpeg. Currently I use 0.10.2 since 0.11.1 fails.

    This is the errors I get when compiling 0.11.1

    CC libavcodec/arm/h264dsp_init_arm.o
    CC libavcodec/arm/h264pred_init_arm.o
    Unable to identify target architecture at /usr/bin/gas-preprocessor.pl line 82.
    CC libavcodec/arm/mpegaudiodsp_init_arm.o
    AS libavcodec/arm/jrevdct_arm.o
    CC libavcodec/arm/mpegvideo_arm.o
    libavcodec/arm/jrevdct_arm.S:72:garbage following instruction — `ldr r11,.Lpicoff\'
    libavcodec/arm/jrevdct_arm.S:73:Unknown pseudo-op : .Lpic
    libavcodec/arm/jrevdct_arm.S:73:Rest of line ignored. 1st junk character valued 92 ().
    libavcodec/arm/jrevdct_arm.S:75:Unknown pseudo-op : .altmacro
    libavcodec/arm/jrevdct_arm.S:76:Unknown pseudo-op : .noaltmacro
    make : * [libavcodec/arm/jrevdct_arm.o] Error 1

    I would want either of these :
    1)Fix this issue an compile ffmpeg for armv7
    2)Know what I have to put in a script to ensure I'm downloading ffmpeg 0.10.2

    Thank You

  • ffmpeg to combine two mov files from iPhone

    8 octobre 2013, par Jason Stallings

    I'm trying to combine two videos recorded on an iPhone into one file with ffmpeg.

    I've tried everything I could find and I can't get anything to work right.

    My current line is

    ffmpeg -i 'concat:output.mov|capturedvideo.MOV' -vcodec copy -acodec copy output2.mov

    This currently won't work. The end result needs to be played on an iPhone.

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