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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • MediaSPIP Core : La Configuration

    9 novembre 2010, par

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes ; une page spécifique à la configuration de la page d’accueil du site ; une page spécifique à la configuration des secteurs ;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • FFmpeg concatenates two m4a files incorrectly

    26 février 2017, par asad

    Problem is, when i concatenate two m4a files with concat demuxer, ffmpeg produces files whose duration is incorrect. You can see that the duration of output file is very different from the duration of two input files combined. Please help me spot the issue in it. My ultimate goal is to append silent audio to the end of the audio file. For that, i generate silent audio file with ffmpeg and then try to concat it with other audio file.

    Command I used to generate audio file :

    ffmpeg -nostdin -loglevel error -y -threads 0 -filter_complex aevalsrc=0 -t 4 /home/ec2-user/videocreation/temp/silence.m4a

    Command I used for concat :

    ffmpeg -f concat -safe 0 -i temp.txt -c copy output.m4a

    I have two file paths listed in temp.txt :

    [ec2-user@ip-10-0-1-126 server]$ cat temp.txt 
    
file /home/ec2-user/videoData/DnXptC4ld8/FADING_OUT_VOLUP_Blrt_Decrypt_1ed5c4d569d8a1f23428b65217f65eaf_audio.m4a
    
file /home/ec2-user/videocreation/temp/silence.m4a

    First file ffprobe :

    [ec2-user@ip-10-0-1-126 server]$ ffprobe /home/ec2-user/videoData/DnXptC4ld8/FADING_OUT_VOLUP_Blrt_Decrypt_1ed5c4d569d8a1f23428b65217f65eaf_audio.m4a 
    
ffprobe version N-80097-g89e9393 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 43.100 / 57. 43.100
    
  libavformat    57. 37.100 / 57. 37.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 46.100 /  6. 46.100
    
  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 '/home/ec2-user/videoData/DnXptC4ld8/FADING_OUT_VOLUP_Blrt_Decrypt_1ed5c4d569d8a1f23428b65217f65eaf_audio.m4a':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 512
    
    compatible_brands: isomiso2
    
    encoder         : Lavf57.44.100
    
  Duration: 00:00:01.77, start: 0.000000, bitrate: 4 kb/s
    
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 11025 Hz, mono, fltp, 0 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    Second file ffprobe :

    [ec2-user@ip-10-0-1-126 server]$ ffprobe /home/ec2-user/videocreation/temp/silence.m4a
    
ffprobe version N-80097-g89e9393 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 43.100 / 57. 43.100
    
  libavformat    57. 37.100 / 57. 37.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 46.100 /  6. 46.100
    
  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 '/home/ec2-user/videocreation/temp/silence.m4a':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 512
    
    compatible_brands: isomiso2
    
    encoder         : Lavf57.44.100
    
  Duration: 00:00:04.02, start: 0.000000, bitrate: 4 kb/s
    
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 1 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

    Output file ffprobe :

    [ec2-user@ip-10-0-1-126 server]$ ffprobe output.m4a 
    
ffprobe version N-80097-g89e9393 Copyright (c) 2007-2016 the FFmpeg developers
    
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
    
  configuration: --prefix=/home/ec2-user/ffmpeg_build --extra-cflags=-I/home/ec2-user/ffmpeg_build/include --extra-ldflags=-L/home/ec2-user/ffmpeg_build/lib --bindir=/home/ec2-user/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55. 24.100 / 55. 24.100
    
  libavcodec     57. 43.100 / 57. 43.100
    
  libavformat    57. 37.100 / 57. 37.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 46.100 /  6. 46.100
    
  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 'output.m4a':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 512
    
    compatible_brands: isomiso2
    
    encoder         : Lavf57.37.100
    
  Duration: 00:00:23.22, start: 0.000000, bitrate: 0 kb/s
    
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 11025 Hz, mono, fltp, 0 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler

  • "No such file or directory" sp.Popen module

    27 mars 2016, par user3481652

    I am trying to take a video and convert it in audio , for this I am using ffmpeg in python. I run the following command but it gives me " No such file or directory" for the input file. Here’s the code-

    FFMPEG_BIN = "ffmpeg"
    
import subprocess as sp
    
command = [FFMPEG_BIN, '-i', '/home/suryansh/Downloads/t.mp4']
    
pipe = sp.Popen(command, stdout = sp.PIPE)

    After executing this code I get home/suryansh/Downloads/t.mp4: No such file or directory but the file is their in the path specified.

  • when I merge some .ts files using ffmpeg library and for making mp4 video it gives me errors

    9 octobre 2017, par humayoon siddique

    I got .ts files from m3u8 link and now I want to merge the .ts files. After searching I came to know that we can merge .ts files using ffmpeg library. Now when I try to merge after certain process it gives me error as following.

    user this function for merging ts two mp4

    WARNING: linker: /data/data/com.whizpool.muftatv/files/ffmpeg has text relocations. This is wasting memory and is a security risk. Please fix.
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress: ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   configuration: --target-os=linux --cross-prefix=/home/sb/Source-Code/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/sb/Source-Code/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/sb/Source-Code/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/sb/Source-Code/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/home/sb/Source-Code/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/home/sb/Source-Code/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   libavutil      54.  7.100 / 54.  7.100
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   libavcodec     56.  1.100 / 56.  1.100
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   libavformat    56.  4.101 / 56.  4.101
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   libavdevice    56.  0.100 / 56.  0.100
    
03-01 17:43:58.049 23895-23895/com.whizpool.muftatv E/ onProgress:   libavfilter     5.  1.100 /  5.  1.100
    
03-01 17:43:58.059 23895-23895/com.whizpool.muftatv E/ onProgress:   libswscale      3.  0.100 /  3.  0.100
    
03-01 17:43:58.059 23895-23895/com.whizpool.muftatv E/ onProgress:   libswresample   1.  1.100 /  1.  1.100
    
03-01 17:43:58.059 23895-23895/com.whizpool.muftatv E/ onProgress:   libpostproc    53.  0.100 / 53.  0.100
    
03-01 17:43:58.069 23895-23895/com.whizpool.muftatv E/ onProgress: [concat @ 0x41a66eb0] Impossible to open '/storage/emulated/0/Mufta/3117927975001_4221595953001_s-6.ts?'
    
03-01 17:43:58.069 23895-23895/com.whizpool.muftatv E/ onProgress: /storage/emulated/0/Pictures/MyCameraVideo/videos.txt: Invalid data found when processing input

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