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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, 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 (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

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  • No audio encoded with ffmpeg using webm/libvorbis

    15 mars 2013, par Craig Lillard

    Having issues getting audio to encode to webm. Tried many different methods and it just ain't happenin. The commands are printed below before each pass.

    I have tried moving the audio commands around, trying different bitrates, different audio commands and have tried it on a couple of different files as well that both have audio.

    Encoding these files to MP4 using x264 causes no problems and works just fine and the audio plays, so it appears to be an issue just with webm. As you can see below, it is a 2-pass encode.

    Thanks for any help you can provide !

    Craig

    Webm LG PASS 1...........................
    

    

    

    

    
    webm_pass1: /usr/bin/ffmpeg -i /home/thedirectory/video613268.mov  -codec:v libvpx -quality good -vf 'scale=640:360 [scaled];movie=/home/thedirectory/watermarks/w640X360.png [logo];[scaled][logo] overlay' -cpu-used 0 -b:v 500k -aspect 16:9 -qmin 10 -qmax 42 -maxrate:v 500k -bufsize:v 1000k -r:v 25/1 -force_fps -threads 0 -an -acodec libvorbis -ac 2 -ab 96k -ar 44100 -pass 1 -f webm -y /dev/null
    

    

    

    
    ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
    
      built on Mar 11 2013 14:48:26 with gcc 4.6.2 20111027 (Red Hat 4.6.2-2)
    
      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-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab --enable-libvorbis --enable-libvpx
    
      libavutil      51. 35.100 / 51. 35.100
    
      libavcodec     53. 61.100 / 53. 61.100
    
      libavformat    53. 32.100 / 53. 32.100
    
      libavdevice    53.  4.100 / 53.  4.100
    
      libavfilter     2. 61.100 /  2. 61.100
    
      libswscale      2.  1.100 /  2.  1.100
    
      libswresample   0.  6.100 /  0.  6.100
    
      libpostproc    52.  0.100 / 52.  0.100
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/thedirectory/video613268.mov':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 537199360
    
        compatible_brands: qt  
    
        creation_time   : 2013-02-23 20:04:32
    
      Duration: 00:00:21.02, start: 0.000000, bitrate: 114326 kb/s
    
        Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 112786 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
        Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2 channels, s16, 1536 kb/s
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
    Incompatible pixel format 'yuvj422p' for codec 'libvpx', auto-selecting format 'yuv420p'
    
    [buffer @ 0x1f675a0] w:1920 h:1080 pixfmt:yuvj422p tb:1/1000000 sar:1/1 sws_param:
    
    [movie @ 0x1f799c0] seek_point:0 format_name:(null) file_name:/home/thedirectory/watermarks/w640X360.png stream_index:0
    
    [overlay @ 0x1f7c2c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'Parsed_movie_1' and the filter 'Parsed_overlay_2'
    
    [scale @ 0x1f78d40] w:1920 h:1080 fmt:yuvj422p -> w:640 h:360 fmt:yuv420p flags:0x4
    
    [scale @ 0x1f7cde0] w:640 h:360 fmt:rgba -> w:640 h:360 fmt:yuva420p flags:0x4
    
    [overlay @ 0x1f7c2c0] main w:640 h:360 fmt:yuv420p overlay x:0 y:0 w:640 h:360 fmt:yuva420p
    
    [overlay @ 0x1f7c2c0] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
    
    [libvpx @ 0x1f77ce0] v1.0.0
    
    Output #0, webm, to '/dev/null':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 537199360
    
        compatible_brands: qt  
    
        creation_time   : 2013-02-23 20:04:32
    
        encoder         : Lavf53.32.100
    
        Stream #0:0(eng): Video: vp8, yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=10-42, pass 1, 500 kb/s, 1k tbn, 25 tbc
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (mjpeg -> libvpx)
    
    Press [q] to stop, [?] for help
    
    frame=  527 fps= 21 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=103    
    
    video:0kB audio:0kB global headers:0kB muxing overhead -nan%
    
    Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
    
    Webm LG PASS 2.......................
    

    

    

    

    
    webm_pass2: /usr/bin/ffmpeg -i /home/thedirectory/video613268.mov -codec:v libvpx -quality good -vf 'scale=640:360 [scaled];movie=/home/thedirectory/watermarks/w640X360.png [logo];[scaled][logo] overlay' -cpu-used 0 -b:v 500k  -aspect 16:9  -qmin 10 -qmax 42 -maxrate:v 500k -bufsize:v 1000k -r:v 24/1 -force_fps -threads 0 -an -acodec libvorbis -ac 2 -ab 96k -ar 44100 -pass 2 -f webm -y /media/amazons3/webmlg/video613268.mov.webm
    

    

    

    
    ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
    
      built on Mar 11 2013 14:48:26 with gcc 4.6.2 20111027 (Red Hat 4.6.2-2)
    
      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-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab --enable-libvorbis --enable-libvpx
    
      libavutil      51. 35.100 / 51. 35.100
    
      libavcodec     53. 61.100 / 53. 61.100
    
      libavformat    53. 32.100 / 53. 32.100
    
      libavdevice    53.  4.100 / 53.  4.100
    
      libavfilter     2. 61.100 /  2. 61.100
    
      libswscale      2.  1.100 /  2.  1.100
    
      libswresample   0.  6.100 /  0.  6.100
    
      libpostproc    52.  0.100 / 52.  0.100
    
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/thedirectory/video613268.mov':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 537199360
    
        compatible_brands: qt  
    
        creation_time   : 2013-02-23 20:04:32
    
      Duration: 00:00:21.02, start: 0.000000, bitrate: 114326 kb/s
    
        Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj422p, 1920x1080 [SAR 72:72 DAR 16:9], 112786 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 2997 tbc
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
        Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz, 2 channels, s16, 1536 kb/s
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
    Incompatible pixel format 'yuvj422p' for codec 'libvpx', auto-selecting format 'yuv420p'
    
    [buffer @ 0x1f2a5a0] w:1920 h:1080 pixfmt:yuvj422p tb:1/1000000 sar:1/1 sws_param:
    
    [movie @ 0x1f3bec0] seek_point:0 format_name:(null) file_name:/home/thedirectory/watermarks/w640X360.png stream_index:0
    
    [overlay @ 0x1f3f2c0] auto-inserting filter 'auto-inserted scale 0' between the filter 'Parsed_movie_1' and the filter 'Parsed_overlay_2'
    
    [scale @ 0x1f3c8a0] w:1920 h:1080 fmt:yuvj422p -> w:640 h:360 fmt:yuv420p flags:0x4
    
    [scale @ 0x1f3fde0] w:640 h:360 fmt:rgba -> w:640 h:360 fmt:yuva420p flags:0x4
    
    [overlay @ 0x1f3f2c0] main w:640 h:360 fmt:yuv420p overlay x:0 y:0 w:640 h:360 fmt:yuva420p
    
    [overlay @ 0x1f3f2c0] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
    
    [libvpx @ 0x1f3ace0] v1.0.0
    
    Output #0, webm, to '/media/amazons3/webmlg/video613268.mov.webm':
    
      Metadata:
    
        major_brand     : qt  
    
        minor_version   : 537199360
    
        compatible_brands: qt  
    
        creation_time   : 2013-02-23 20:04:32
    
        encoder         : Lavf53.32.100
    
        Stream #0:0(eng): Video: vp8, yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=10-42, pass 2, 500 kb/s, 1k tbn, 24 tbc
    
        Metadata:
    
          creation_time   : 2013-02-23 20:04:32
    
          handler_name    : ?Gestionnaire d?alias Apple
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (mjpeg -> libvpx)
    
    Press [q] to stop, [?] for help
    
    frame=  506 fps=  7 q=0.0 Lsize=    1610kB time=00:00:21.08 bitrate= 625.8kbits/s dup=0 drop=124    
    
    video:1389kB audio:0kB global headers:0kB muxing overhead 15.952140%

  • mpegts muxer, DVB subtitles encoder : common DVB subtitles payload

    11 janvier 2014, par Serhii Marchuk
    mpegts muxer, DVB subtitles encoder : common DVB subtitles payload

    Improved DVB subtitles encoder to generate AVPacket.data in the same
    
format as generates MPEGTS demuxer + DVB subtitles parser. So now single
    
format of DVB subtitles data is used across all the components of FFmpeg :
    
only subtitles payload WITHOUT 0x20 0x00 bytes at the beginning and 0xFF
    
trailing byte.
    

    Improved MPEGTS muxer to support format of DVB subtitles in
    
AVPacket.data described above : while muxing we add two bytes 0x20 0x00 to
    
the beginning of and 0xFF to the end of DVB subtitles payload.
    

    The patch fixes DVB subtitle copy problems : tickets #2989 fully and #2024
    
partly.
    

    Signed-off-by : Clément Bœsch <u@pkh.me>
    • [DH] libavcodec/dvbsub.c
    • [DH] libavcodec/version.h
    • [DH] libavformat/mpegtsenc.c
    • [DH] libavformat/version.h

  • ffmpeg : fix transcoding dvbsub to dvbsub

    22 juin 2014, par Anshul Maheshwari
    ffmpeg : fix transcoding dvbsub to dvbsub

    fix ticket #2024
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] ffmpeg.c

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