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Autres articles (36)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

Sur d’autres sites (6992)

  • How do I configure ffmpeg & openh264 so that the video file can be opened in Windows Media Player 12

    10 mars 2017, par Sacha Guyer

    I have successfully created h264/mp4 movie files with ffmpeg and the x264 library.

    Now I would like to change the h264 library from x264 to openH264. I could replace the x264 library with openH264, recompile ffmpeg and produce movie files, without changing my sources that produce the movie. The resulting movie opens fine in Quicktime on Mac, but on Windows, Windows Media Player 12 cannot play it.

    The documentation about Windows Media Player support for h264 is unclear. File types supported by Windows Media Player states in the table that Windows Media Player 12 supports mp4, but the text below says :

    Windows Media Player does not support the playback of the .mp4 file format.

    From what I have observed, Windows Media Player 12 IS capable of playing h264/mp4 files, but only when created with x264.

    Does anyone know how I need to adjust the configuration of the codec/context so that the movie plays in Windows Media Player ? Does Windows Media Player only support certain h264 profiles ?

    I noticed the warning :

    [libopenh264 @ 0x...] [OpenH264] this = 0x..., Warning:bEnableFrameSkip = 0,bitrate can’t be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame

    With the configuration :

    av_dict_set(&options, "allow_skip_frames", "1", 0);

    I could get rid of this warning, but the movie still does not play. Are there other options that need to be set so that the movie plays in Windows Media Player ?

    Thank you for your help

    ffprobe output of the file that does play fine in Windows Media Player :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_x264.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : retina
    
    encoder         : Lavf57.56.100
    
    comment         : Creation Date: 2017-03-10 07:47:39.601
    
  Duration: 00:00:04.17, start: 0.000000, bitrate: 17497 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661),
    
      yuv420p, 852x754, 17495 kb/s, 24 fps, 24 tbr, 24k tbn, 48 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler

    ffprobe output of the file that does not play in Windows Media Player :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_openh264.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    title           : retina
    
    encoder         : Lavf57.56.100
    
    comment         : Creation Date: 2017-03-10 07:49:27.024
    
  Duration: 00:00:04.17, start: 0.000000, bitrate: 17781 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
    
      yuv420p, 852x754, 17779 kb/s, 24 fps, 24 tbr, 24k tbn, 48k tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler

  • Compile FFmpeg with x264 for MacOS and Windows on Linux

    9 mars 2023, par RobinFrcd

    I successfully managed to compile a minimal standalone FFmpeg binary to create MP4 videos from JPG images encoded with x264. The binary is 100% functional and is 5.2MB.

    


    To do that, I used :

    


    ./configure \
--disable-everything \
--enable-decoder=mjpeg \
--enable-encoder=libx264 \
--enable-protocol=concat,file \
--enable-demuxer=image2 \
--enable-muxer=mp4 \
--enable-filter=scale \
--enable-gpl \
--enable-libx264 \
--extra-ldexeflags="-static" \
--pkg-config="pkg-config --static"


    


    I now would like to build the macOS and windows binaries directly from my Linux machine. I tried this repo and replaced the config args with mine, but the output exe is 30MB+. And I don't find anything about building for MacOS.

    


    Is there a solution to make this minimal build cross-platform compatible ?

    


  • FFMPEG | AVFilterGraph error WINDOWS and DEBIAN

    14 mai 2017, par Lucasp

    I trying to use FFMPEG for modify a vidéo.
    I have this command on this forum but I have some error

    ffmpeg -i input -filter_complex \
    
"[0:v]crop=iw/2:ih/2:0:0[lt]; \
    
 [0:v]crop=iw/2:ih/2:ow:0[rt]; \
    
 [0:v]crop=iw/2:ih/2:0:oh[lb]; \
    
 [0:v]crop=iw/2:ih/2:ow:oh[rb]; \
    
 [lb][lt]hstack[top]; \
    
 [rt][rb]hstack[bottom]; \
    
 [top][bottom]vstack" \
    
-c:a copy output

    Error windows : [AVFilterGraph @ 00000000035ecc20] No such filter : ’\’
    Error Debian : [AVFilterGraph @ 0xe152ceab4e0] No such filter : ’ ’

    Any solution to fix it ? Thx !

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