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  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

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  • Creating a single file per size for MPEG-DASH using ffmpeg command

    2 septembre 2020, par New Dev

    I am trying to generate to generate the following outputs from a single movie file :

    


    540.mp4
1080.mp4
output.mpd
master.m3u8


    


    First, does it make sense for each .mp4 to contain both video and audio streams ? If not, then an additional audio stream file can work too.

    


    Second, is it possible to create the above files from a (single ?) ffmpeg command ?

    


    When I do this this :

    


    ffmpeg -i input.mov -map 0:v -map 0:v -map 0:a \
  -c:v h264 -c:a aac \
  -filter:v:0 "scale=-2:540" \
  -filter:v:1 "scale=-2:1080" \
  -f dash -single_file 1 \
  -seg_duration 6 -hls_playlist 1 \
  output.mpd


    


    It produces three additional m3u8 files (per stream) and it produces 3 mp4 files - 2 for video streams and 1 for audio - with a default name like output-stream0.mp4.

    


    Is there a way to rename each output-streamX.mp4 to be more descriptive ? Is there a way to avoid splitting video and audio into multiple files ?

    


  • avformat/dashdec : The segments in dash file doesn't read completely when segment...

    2 septembre 2024, par jiangjie
    avformat/dashdec : The segments in dash file doesn't read completely when segment's size and duration is very small.

    If the segment is very small, avformat_find_stream_info
    
will read all audio/video data in this segment.
    
cur->is_restart_needed is set to 0 later in dash_read_packet,
    
and no chance to be set to 1 again in the read_data function.
    

    Reproduction :
    
ffmpeg -f lavfi -i mandelbrot -f lavfi -i anullsrc -c:v vp8 \
    
 -g 5 -r 5 -c:a libopus -use_template 0 -seg_duration 1 \
    
 -t 15 -y test_720.mpd
    
ffprobe -show_packets test_720.mpd
    • [DH] libavformat/dashdec.c

  • dash.js four channels audio stream not working

    19 juillet 2016, par Carlos Chacon

    Does dash.js supports 4 channels in the audio stream ?

    I’m using webm, mp4 container : h254 and acc audio stream.

    For the case that the acc audio stream is 2 channels it works fine, both video and audio play correctly.

    I’m using FFMPEG to create the files and WOWZA to setup the DASH streaming.

    For the case that the acc audio stream is 4 channels I get the following error :

     Video can't be played because the file is corrupt.

    Command line to generate the 2-channels file :

    ffmpeg -i video_in.mp4 -i audio_in_4ch.wav -c:v copy -c:a aac -ac 2 output_2channels.mp4

    Command line to generate the 4-channels file :

    ffmpeg -i video_in.mp4 -i audio_in_4ch.wav -c:v copy -c:a aac -ac 4 output_4channels.mp4

    This is the fmmpeg -i information printed for each file :

    2 Channels output file details :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output_2channels.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.37.101
    
  Duration: 00:00:17.59, start: 0.000000, bitrate: 901 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1024x512 [SAR 1:1 DAR 2:1], 894 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 129 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    4 Channels output file details :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output_4channels.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.37.101
    
  Duration: 00:00:17.59, start: 0.000000, bitrate: 1038 kb/s
    
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 1024x512 [SAR 1:1 DAR 2:1], 894 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 265 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

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