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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
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Sur d’autres sites (10652)

  • ffmpeg encoding plays very fast. Audio.mp4 and Video.mp4 work, but both together don't

    25 février 2013, par Peter.O

    In both steps 3 and 4 below, the .mp4 plays normally. However, although I've used what seems to be the same settings in the last step (audio + video), that step does not work. The video plays more than 10 times too fast... also the audio does not play.

    The ffmpeg messages for step 5 show that it has included audio.

    Output #0, mp3, to '/tmp/test.mp4':
    
    Stream #0.0: Video: libx264, yuv420p, 720x480, q=2-31, 90k tbn, 23.98 tbc
    
    Stream #0.1: Audio: libmp3lame, 48000 Hz, stereo, s16, 128 kb/s

    Subsequently running ffmpeg -i shows no trace of the audio, but it does report on the video... What have I missed, to get it muxed properly ?...

    #!/bin/bash
    

    
# 1. create Audio 
    
wine avs2pipe.exe audio "$src_avs" >"$temp_pcm"
    

    
# 2. create Video 
    
wine avs2yuv.exe "$src_avs" - |
    
  x264 --stdin y4m --output "$temp_h264" - 2>/dev/null
    

    
# 3. This works.  (audio only)
    
# encode `audio.mp4 
    
ffmpeg -acodec pcm_s16le -f u16le -ac 2 -ar 48000 -i "$temp_pcm" \
    
       -acodec libmp3lame -f mp3 -ar 48000 -ab 128k  -y "$audio_mp4"
    

    
# 4. This works.  (video only)
    
# encode `video.mp4 
    
ffmpeg -i "$temp_h264" \
    
       -vcodec copy -y "$video_mp4"
    

    
# 5. This DOES NOT work!  It plays very fast.
    
# encode `final.mp4' 
    
ffmpeg -acodec pcm_s16le  -f u16le  -ac 2 -ar 48000  -i "$temp_pcm" \
    
       -i "$temp_h264" \
    
       -acodec libmp3lame -f mp3 -ar 48000 -ab 128k \
    
       -vcodec copy \
    
       -y "$final_mp4"

  • Add 2 pictures to video with durations ? [duplicate]

    24 juin 2013, par jesper

    This question already has an answer here :

    I am trying to add 2 different images into a video with ffmpeg.

    image1.jpg should show the first 10 seconds of the movie and youtubeLOL.png should show the next 6 minutes of the video.

    So the command should tell us also to repeat the pictures to get a length for 6 minutes and 10 seconds. How can i do this ? I have tried this :

    (It's not even working)

     passthru("ffmpeg -f image2 -loop 1 -vframes 100 -i /home/psafari/public_html/youtube_images/movie_" . $id . ".jpg -vcodec mpeg4 /home/psafari/public_html/youtube_videos/movie_" . time().".avi");

    Here is output :

    FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 
    

    
Invalid value '1' for option 'loop'

    output memcode

     MEncoder SVN-r31628-4.4.6 (C) 2000-2010 MPlayer Team
    
 get_path("config") problem
    
 success: format: 0  data: 0x0 - 0x1251b
    
 libavformat file format detected.
    
 [lavf] stream 0: video (h264), -vid 0
    
 VIDEO:  [H264]  540x800  24bpp  25.000 fps  116.3 kbps (14.2 kbyte/s)
    
 [V] filefmt:44  fourcc:0x34363248  size:540x800  fps:25.000  ftime:=0.0400
    
 videocodec: framecopy (540x800 24bpp fourcc=34363248)
    
 Writing header...
    
 ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    
 Writing header...
    
 ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
    
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 Pos:   5.0s    124f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [117:0]
    
 Pos:   5.0s    125f (100%)  0.00fps Trem:   0min   0mb  A-V:0.000 [116:0]
    
 success: format: 0  data: 0x0 - 0x9daf8
    
 libavformat file format detected.
    
 [lavf] stream 0: video (h264), -vid 0
    
 VIDEO:  [H264]  640x400  24bpp  25.000 fps   21.8 kbps ( 2.7 kbyte/s)
    
 [V] filefmt:44  fourcc:0x34363248  size:640x400  fps:25.000  ftime:=0.0400
    
 videocodec: framecopy (540x800 24bpp fourcc=34363248)
    
 videocodec: framecopy (640x400 24bpp fourcc=34363248)
    

    
 All video files must have identical fps, resolution, and codec for -ovc copy.
    

    
 Exiting...

  • Processing video using ffmpeg and saving the output to MongoDB

    10 juillet 2013, par kheya

    I have user uploaded video saved in a folder (can be in any of 5/6 formats)
    I have 2 needs.

    • Extract 3 frame images (that I will show to user for possible thumbnail
    • Convert the video to one or more other formats (flv + WebM)

    I am planning to use FFMPEG command line tool.

    How do I write the output from FFMPEG to MongoDB gridFS ?

    Is it even possible or I have to write the files to folder first & then save to gridFS ?

    Thanks

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