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Autres articles (39)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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 (...)

Sur d’autres sites (9872)

  • Cant rotate video Android FFMPEG

    24 novembre 2016, par ashishguptabns

    I am using https://github.com/WritingMinds/ffmpeg-android-java. Can trim, join mp4 files but not able to rotate and speed up/down.

    Tried almost all SO answers but no luck.

    I am using latest Android Studio.

    D/ffmpeg_work: [-noautorotate, -i, /storage/emulated/0/Pictures/VideoApp/v_1479895157.mp4, -vf, transpose=1, /storage/emulated/0/Pictures/VideoApp/v_1480001945.mp4]
    
D/FFmpeg: Running publishing updates method
    
D/ffmpeg_work: onProgress: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
    
D/ffmpeg_work: onProgress:   built with gcc 4.8 (GCC)
    
D/ffmpeg_work: onProgress:   configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --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/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    
D/ffmpeg_work: onProgress:   libavutil      55. 17.103 / 55. 17.103
    
D/ffmpeg_work: onProgress:   libavcodec     57. 24.102 / 57. 24.102
    
D/ffmpeg_work: onProgress:   libavformat    57. 25.100 / 57. 25.100
    
D/ffmpeg_work: onProgress:   libavdevice    57.  0.101 / 57.  0.101
    
D/ffmpeg_work: onProgress:   libavfilter     6. 31.100 /  6. 31.100
    
D/ffmpeg_work: onProgress:   libswscale      4.  0.100 /  4.  0.100
    
D/ffmpeg_work: onProgress:   libswresample   2.  0.101 /  2.  0.101
    
D/ffmpeg_work: onProgress:   libpostproc    54.  0.100 / 54.  0.100
    
D/ffmpeg_work: onProgress: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Pictures/VideoApp/v_1479895157.mp4':
    
D/ffmpeg_work: onProgress:   Metadata:
    
D/ffmpeg_work: onProgress:     major_brand     : isom
    
D/ffmpeg_work: onProgress:     minor_version   : 512
    
D/ffmpeg_work: onProgress:     compatible_brands: isomiso2avc1mp41
    
D/ffmpeg_work: onProgress:     encoder         : Lavf57.25.100
    
D/ffmpeg_work: onProgress:   Duration: 00:00:09.88, start: -3.000000, bitrate: 1816 kb/s
    
D/ffmpeg_work: onProgress:     Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1280x960, 1755 kb/s, 4.46 fps, 7.50 tbr, 90k tbn, 180k tbc (default)
    
D/ffmpeg_work: onProgress:     Metadata:
    
D/ffmpeg_work: onProgress:       rotate          : 270
    
D/ffmpeg_work: onProgress:       handler_name    : VideoHandler
    
D/ffmpeg_work: onProgress:     Side data:
    
D/ffmpeg_work: onProgress:       displaymatrix: rotation of 90.00 degrees
    
D/ffmpeg_work: onProgress:     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96 kb/s (default)
    
D/ffmpeg_work: onProgress:     Metadata:
    
D/ffmpeg_work: onProgress:       handler_name    : SoundHandler

    Tried these also :

    [-noautorotate, -i, /storage/emulated/0/Pictures/VideoApp/v_1479895157.mp4, -filter:v, transpose=1, /storage/emulated/0/Pictures/VideoApp/v_1480002208.mp4]
    

    
[-noautorotate, -i, /storage/emulated/0/Pictures/VideoApp/v_1479895157.mp4, -filter:v, transpose=1, -metadata:s:v, rotate=0, /storage/emulated/0/Pictures/VideoApp/v_1480002275.mp4]
    

    
[-noautorotate, -i, /storage/emulated/0/Pictures/VideoApp/v_1479895157.mp4, -vf, transpose=1, /storage/emulated/0/Pictures/VideoApp/v_1480002362.mp4]

    After this nothing happens in both cases

  • What is the most efficient way to broadcast a live stream ? [closed]

    3 août 2020, par Harsh

    I want to build a live streaming system for a classroom. The amount on information on this subject is so confusing. These are the features/requirements that I want to have in my app :

    


      

    1. Room type system.

      2. 


    2. One teacher - N students (N<200).

      3. &#xA;

    3. Broadcast video/audio. This needs to be only 1 way. (1T ---> 200S)

      4. &#xA;

    4. Audio chat should be possible if a teacher allows a student to speak.

      5. &#xA;

    5. Need not to record the session, though it would be a great feature to have.

      6. &#xA;

    &#xA;

    Now, from my research I have established there are many ways to go about it. The best one to me seems using WebRTC. In that case I do not have to worry about the platform that much.&#xA;WebRTC needs a STUN/TURN server, that can be easily set-up using the coturn project.&#xA;I'll also need a SFU which forwards my stream to the client, like Janus or Mediasoup.&#xA;But that's where I'm getting confused.

    &#xA;

    Can I not directly use a live stream, send it to the server, transcode it in real time using ffmpeg to HLS/DASH and publish it to a S3 bucket from where the users can access it. Wouldn't that be more efficient and able to handle much more students easily.

    &#xA;

    For the audio part I could just use the p2p functionality of webrtc in the browser itself, so no need to route that through the server.

    &#xA;

    That is how far I've come to understand the system. I still don't completely understand how SFU works and I'm confused about how many live streams can one server handle (say a 4C/8GB). Or if using ffmpeg on VPS is a bad thing and I should use the AWS services instead ?

    &#xA;

    Can someone please help me understand this ?

    &#xA;

    Thanks !

    &#xA;

  • Merge commit ’46430fd47c6239ef8742d0a34f9412d5060fa798’

    15 mai 2013, par Michael Niedermayer
    Merge commit ’46430fd47c6239ef8742d0a34f9412d5060fa798’

    * commit ’46430fd47c6239ef8742d0a34f9412d5060fa798’ :
    
  vc1dec : Don’t attempt error concealment on field pictures
    
  vc1dec : fieldtx is only valid for interlaced frame pictures
    
  aacenc : Fix erasure of surround channels
    
  aacenc : Fix target bitrate for twoloop quantiser search
    

    Conflicts :
    
	libavcodec/vc1dec.c
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/vc1dec.c

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