Recherche avancée

Médias (1)

Mot : - Tags -/musée

Autres articles (112)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (13389)

  • Cannot retrieve duration of webm file using ffmpeg

    10 juin 2016, par maximus 69

    I am trying to retrieve the duration of a .webm video file that I recorded using the the video.js plugin (https://github.com/collab-project/videojs-record).

    I am using ffmpeg to get the duration but it always return N/A :

    ffprobe version 3.0.2-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 5.3.1 (Debian 5.3.1-16) 20160424
    
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-librtmp --enable-libmfx --enable-libzimg --cc=gcc
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, matroska,webm, from '/home/demoss/public_html/source/bALRt9I697PVQh4zglou.webm':
    
  Metadata:
    
    encoder         : Chrome
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Stream #0:1(eng): Audio: opus, 48000 Hz, mono, fltp (default)
    
duration=N/A

    I don’t think the video is corrupted as it played in my VideoJS player without issues.

    Any pointers as to why its not returning the duration would be greatly appreciated. I wouldn’t mind using an alternative library as well

    Thanks

  • How to call ffmpeg code to keep same video quality ?

    7 mai 2016, par seaguest

    I am using ffmpeg3 to convert mv.webm to mp4, it works fine when I use the command line.

    $ ffprobe mv.webm 
    
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --enable-gpl --enable-shared --enable-libx264
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 39.100 / 57. 39.100
    
  libavformat    57. 36.100 / 57. 36.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 45.100 /  6. 45.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, matroska,webm, from 'mv.webm':
    
  Metadata:
    
    encoder         : google
    
  Duration: 00:04:56.36, start: 0.000000, bitrate: 836 kb/s
    
    Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 1k tbn (default)
    
    Stream #0:1: Audio: vorbis, 44100 Hz, stereo, fltp (default)
    

    
$ ffmpeg -i mv.webm  -acodec aac -vcodec libx264  mv1.mp4
    
$ ffprobe mv1.mp4 
    
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --enable-gpl --enable-shared --enable-libx264
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 39.100 / 57. 39.100
    
  libavformat    57. 36.100 / 57. 36.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 45.100 /  6. 45.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'n1.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.36.100
    
  Duration: 00:04:56.36, start: 0.000000, bitrate: 628 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 500 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 120 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    I play it with VLC, there is no noise at all.

    Here is my first question, in case we don’t specify the bitrate in the ffmpeg command, how are the bitrate of video/audio determined ?

    Since I am developping in Golang, I use the framework gmf which calls ffmpeg, I use go to convert the video format without specifying bitrate, then I got the following info :

    $ ffprobe mv2.mp4 
    
ffprobe version N-79789-g58b3e56 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.1)
    
  configuration: --enable-gpl --enable-shared --enable-libx264
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 39.100 / 57. 39.100
    
  libavformat    57. 36.100 / 57. 36.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 45.100 /  6. 45.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mv2.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.36.100
    
  Duration: 00:04:56.36, start: 0.000000, bitrate: 540 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480, 385 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 147 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    The bitrate is event better than mv1.mp4, however when I play it with VLC, I heard a lot of noises.

    I tried to increase the audio bitrate (the way we set bitrate is like AVCodecContext->bit_rate = 441000...), but this doesn’t help.

    Maybe there is some option that I need to add when calling ffmpeg code to keep the same quality as input source, could anyone help ?

  • FFMPEG .mov to .mp4 convertion failure [solved]

    24 mai 2016, par Pasha Rumkin

    I’m converting .mov and .mp4 to .mp4 with FFMPEG to play them on iOS and Android devices. Mp4 from Android is converting properly and playing on both devices iPhone and Android. But iPhone’s .mov result is strange. It’s playing on iPhone and Android 4. But when I’m trying to open this video with Photo app (Android 5, 6) it outputs unsupported video message.

    FFMPEG command :

    ffmpeg -i app/data/storage/68/fa/39/68fa392b-df25-4622-93ab-cf9bf1253f63 \
    
       -y -b:a 128k -ac 2 -acodec libfdk_aac -b:v 300k -vcodec libx264 \
    
       -filter:v scale=w=320:h=trunc(ow/a/2)*2 -vprofile baseline \
    
       -movflags faststart -f mp4 \
    
       app/data/storage/68/fa/39/68fa392b-df25-4622-93ab-cf9bf1253f63.mp4

    ffprobe with output file :

    ffprobe version N-80026-g936751b Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 42.100 / 57. 42.100
    
  libavformat    57. 36.100 / 57. 36.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 45.100 /  6. 45.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '68fa392b-df25-4622-93ab-cf9bf1253f63.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.36.100
    
  Duration: 00:00:00.65, start: 0.000000, bitrate: 297 kb/s
    
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 320x568, 178 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

Navigation