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  • MediaSPIP : Modification des droits de création d’objets et de publication définitive

    11 novembre 2010, par

    Par défaut, MediaSPIP permet de créer 5 types d’objets.
    Toujours par défaut les droits de création et de publication définitive de ces objets sont réservés aux administrateurs, mais ils sont bien entendu configurables par les webmestres.
    Ces droits sont ainsi bloqués pour plusieurs raisons : parce que le fait d’autoriser à publier doit être la volonté du webmestre pas de l’ensemble de la plateforme et donc ne pas être un choix par défaut ; parce qu’avoir un compte peut servir à autre choses également, (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

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  • How to export audio from a iPhone video file with FFmpeg ?

    11 janvier 2020, par DanScripter

    UPDATE 1 the problem resides in the input read-stream. (check below)

    I am using fluent-ffmpeg (version : 2.1.2) to get a .mp3 file out of a video file that I input as a stream .createReadStream(). I output the file as a .pipe to a remoteWriteStream.

    ffmpeg -i pipe:0 -vn -f mp3 -acodec mp3 -movflags frag_keyframe+empty_moov pipe:1

    This works fine with .mp4, .webm and .mov (codec : prores) files.

    But it somehow does not want to work with a .mov out of an iPhone 11. FFmpeg is not giving me any error when running above code. It creates the .mp3 file but the size is just 152 B and it is not playable.

    I ffprobed the iPhone .mov files it returns this :

    "{ streams: 
    
   [ { index: 0,
    
       codec_name: 'hevc',
    
       codec_long_name: 'H.265 / HEVC (High Efficiency Video Coding)',
    
       profile: 'Main',
    
       codec_type: 'video',
    
       codec_time_base: '1111/33300',
    
       codec_tag_string: 'hvc1',
    
       codec_tag: '0x31637668',
    
       width: 1920,
    
       height: 1080,
    
       coded_width: 1920,
    
       coded_height: 1088,
    
       has_b_frames: 2,
    
       sample_aspect_ratio: '0:1',
    
       display_aspect_ratio: '0:1',
    
       pix_fmt: 'yuv420p',
    
       level: 120,
    
       color_range: 'tv',
    
       color_space: 'bt709',
    
       color_transfer: 'bt709',
    
       color_primaries: 'bt709',
    
       chroma_location: 'unspecified',
    
       field_order: 'unknown',
    
       timecode: 'N/A',
    
       refs: 1,
    
       id: 'N/A',
    
       r_frame_rate: '30000/1001',
    
       avg_frame_rate: '33300/1111',
    
       time_base: '1/600',
    
       start_pts: 'N/A',
    
       start_time: 'N/A',
    
       duration_ts: 6666,
    
       duration: 11.11,
    
       bit_rate: 7611708,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 333,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 1,
    
       codec_name: 'aac',
    
       codec_long_name: 'AAC (Advanced Audio Coding)',
    
       profile: 'unknown',
    
       codec_type: 'audio',
    
       codec_time_base: '1/44100',
    
       codec_tag_string: 'mp4a',
    
       codec_tag: '0x6134706d',
    
       sample_fmt: 'fltp',
    
       sample_rate: 44100,
    
       channels: 2,
    
       channel_layout: 'stereo',
    
       bits_per_sample: 0,
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/44100',
    
       start_pts: 'N/A',
    
       start_time: 'N/A',
    
       duration_ts: 489951,
    
       duration: 11.11,
    
       bit_rate: 135091,
    
       max_bit_rate: 192000,
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 481,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 2,
    
       codec_name: 'unknown',
    
       codec_long_name: 'unknown',
    
       profile: 'unknown',
    
       codec_type: 'data',
    
       codec_tag_string: 'mebx',
    
       codec_tag: '0x7862656d',
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/600',
    
       start_pts: 'N/A',
    
       start_time: 'N/A',
    
       duration_ts: 6666,
    
       duration: 11.11,
    
       bit_rate: 2670,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 38,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 3,
    
       codec_name: 'unknown',
    
       codec_long_name: 'unknown',
    
       profile: 'unknown',
    
       codec_type: 'data',
    
       codec_tag_string: 'mebx',
    
       codec_tag: '0x7862656d',
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/600',
    
       start_pts: 'N/A',
    
       start_time: 'N/A',
    
       duration_ts: 6666,
    
       duration: 11.11,
    
       bit_rate: 7,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 1,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] },
    
     { index: 4,
    
       codec_name: 'unknown',
    
       codec_long_name: 'unknown',
    
       profile: 'unknown',
    
       codec_type: 'data',
    
       codec_tag_string: 'mebx',
    
       codec_tag: '0x7862656d',
    
       id: 'N/A',
    
       r_frame_rate: '0/0',
    
       avg_frame_rate: '0/0',
    
       time_base: '1/600',
    
       start_pts: 'N/A',
    
       start_time: 'N/A',
    
       duration_ts: 6666,
    
       duration: 11.11,
    
       bit_rate: 18117,
    
       max_bit_rate: 'N/A',
    
       bits_per_raw_sample: 'N/A',
    
       nb_frames: 333,
    
       nb_read_frames: 'N/A',
    
       nb_read_packets: 'N/A',
    
       tags: [Object],
    
       disposition: [Object] } ],
    
  format: 
    
   { filename: 'pipe:0',
    
     nb_streams: 5,
    
     nb_programs: 0,
    
     format_name: 'mov,mp4,m4a,3gp,3g2,mj2',
    
     format_long_name: 'QuickTime / MOV',
    
     start_time: 'N/A',
    
     duration: 11.11,
    
     size: 'N/A',
    
     bit_rate: 'N/A',
    
     probe_score: 100,
    
     tags: 
    
      { major_brand: 'qt  ',
    
        minor_version: '0',
    
        compatible_brands: 'qt  ',
    
        creation_time: '2020-01-11T12:33:36.000000Z',
    
        'com.apple.quicktime.make': 'Apple',
    
        'com.apple.quicktime.model': 'iPhone 11',
    
        'com.apple.quicktime.software': '13.3',
    
        'com.apple.quicktime.creationdate': '2020-01-11T13:33:36+0100' } },
    
  chapters: [] }"

    The created .mp3 file results in a undefined.

    I already tried to take the .mov re-encode it to an .mp4 via ffmpeg and then try the above code to get the .mp3 - still does not work.

    Any advice how I can make this work ?

    thanks !

    UPDATE 1
    The problem resides in the input stream ! When I download the file to the local machine and input it as as a local file, not as a read stream, it works perfectly.

    I am creating the stream from a google cloud bucket like this :

    const myBucket = storage.bucket('myBucket');
    
const remoteReadStream = myBucket.file(file).createReadStream();

    Since this code is perfectly working with all other codecs, what maybe the issue while creating the read stream from the google cloud from a h265 file ?

  • How to deal ffplay being too slow playing iPhone's videos ?

    8 janvier 2020, par Mikhail T.

    Trying to play a 3840x2160 video recorded by an iPhone 7 (@30fps), I get frequent pauses — in the video, music keeps playing.

    



    This happens both in firefox and when ffplay is invoked to play the file directly — from command-line. The CPU is a dual E6700 @3.20GHz — not super fast, but it should be able to play smoothly, shouldn't it ? Video is Intel's "series 4" integrated chipset — again, not a speed-daemon, but it should be adequate... Support for Intel's VA API is included.

    



    I build ffmpeg-4.1 from source using FreeBSD port. As you can see, the port has a maddening amount of options — including several different ones for the 264-codec.

    



    Any suggestions for improving the decoding speed to the point, where it is watchable by a human ? Thank you !

    


  • How to deal ffplay being too slow playing iPhone's videos ?

    8 janvier 2020, par Mikhail T.

    Trying to play a 3840x2160 video recorded by an iPhone 7 (@30fps), I get frequent pauses — in the video, music keeps playing.

    This happens both in firefox and when ffplay is invoked to play the file directly — from command-line. The CPU is a dual E6700 @3.20GHz — not super fast, but it should be able to play smoothly, shouldn’t it ? Video is Intel’s "series 4" integrated chipset — again, not a speed-daemon, but it should be adequate... Support for Intel’s VA API is included.

    I build ffmpeg-4.1 from source using FreeBSD port. As you can see, the port has a maddening amount of options — including several different ones for the 264-codec.

    Any suggestions for improving the decoding speed to the point, where it is watchable by a human ? Thank you !

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