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Autres articles (61)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

Sur d’autres sites (7313)

  • FFMPEG 0.6.5 Commands

    10 novembre 2015, par j.edga

    I need to use ffmpeg version 0.6.5 for doings things like

    • transcribing to different formats ;
    • changing the quality ;
    • taking a still-frame shot ;
    • get the total video durations

    amongst other things.

    I have tried a couple of commands, but they don’t work. How can I do what I want to ?

  • FFmpeg adding 0.05 seconds of silence to transcoded AAC file ?

    29 octobre 2015, par FTLRalph

    In Java, I’m using FFmpeg to convert a WAV file to AAC with the function :

    -i input.wav -ac 1 -ab 64000 -ar 22050 output.aac

    When I open these two files in Audacity, I can clearly see that the AAC file is 0.05 seconds longer, with 0.05 seconds of silence added to the beginning.

    This is an issue when I try to mux this AAC file with a video file - the audio doesn’t sync up.

    Is there some sort of parameter to prevent this behavior or another way to get around this issue ?

    Edit - Console output while running the function :

    10-28 17:47:10.845: I/System.out(14784): FFmpeg: Running the function: -i "input.wav" -ac 1 -ab 64000 -ar 22050 "output.aac"
    
10-28 17:47:10.845: I/System.out(14784): FFmpeg function: onStart()
    
10-28 17:47:10.865: D/FFmpeg(14784): Running publishing updates method
    
10-28 17:47:10.865: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   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=
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:10.875: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.875: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:10.880: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.880: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.895: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:10.895: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:10.900: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.900: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):   Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):     Metadata:
    
10-28 17:47:10.935: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.935: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Stream mapping:
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:10.940: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:10.940: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.395: D/dalvikvm(14784): JIT unchain all for threadid=16
    
10-28 17:47:11.420: D/dalvikvm(14784): GC_FOR_ALLOC freed 4698K, 40% free 7190K/11964K, paused 271ms, total 272ms
    
10-28 17:47:11.420: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.420: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.455: I/System.out(14784): FFmpeg function: onProgress()...
    
10-28 17:47:11.455: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.470: I/System.out(14784): FFmpeg function: onSuccess(), message:
    
10-28 17:47:11.470: I/System.out(14784): ffmpeg version n2.4.2 Copyright (c) 2000-2014 the FFmpeg developers
    
10-28 17:47:11.470: I/System.out(14784):   built on Oct  7 2014 15:08:46 with gcc 4.8 (GCC)
    
10-28 17:47:11.470: I/System.out(14784):   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=
    
10-28 17:47:11.470: I/System.out(14784):   libavutil      54.  7.100 / 54.  7.100
    
10-28 17:47:11.470: I/System.out(14784):   libavcodec     56.  1.100 / 56.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libavformat    56.  4.101 / 56.  4.101
    
10-28 17:47:11.470: I/System.out(14784):   libavdevice    56.  0.100 / 56.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libavfilter     5.  1.100 /  5.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libswscale      3.  0.100 /  3.  0.100
    
10-28 17:47:11.470: I/System.out(14784):   libswresample   1.  1.100 /  1.  1.100
    
10-28 17:47:11.470: I/System.out(14784):   libpostproc    53.  0.100 / 53.  0.100
    
10-28 17:47:11.470: I/System.out(14784): Guessed Channel Layout for  Input Stream #0.0 : mono
    
10-28 17:47:11.470: I/System.out(14784): Input #0, wav, from 'input.wav':
    
10-28 17:47:11.470: I/System.out(14784):   Duration: 00:00:02.50, bitrate: 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 22050 Hz, 1 channels, s16, 352 kb/s
    
10-28 17:47:11.475: I/System.out(14784): Output #0, adts, to 'output.aac':
    
10-28 17:47:11.475: I/System.out(14784):   Metadata:
    
10-28 17:47:11.475: I/System.out(14784):     encoder         : Lavf56.4.101
    
10-28 17:47:11.475: I/System.out(14784):     Stream #0:0: Audio: aac, 22050 Hz, mono, fltp, 64 kb/s
    
10-28 17:47:11.475: I/System.out(14784):     Metadata:
    
10-28 17:47:11.475: I/System.out(14784):       encoder         : Lavc56.1.100 aac
    
10-28 17:47:11.475: I/System.out(14784): Stream mapping:
    
10-28 17:47:11.475: I/System.out(14784):   Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (native))
    
10-28 17:47:11.475: I/System.out(14784): Press [q] to stop, [?] for help
    
10-28 17:47:11.475: I/System.out(14784): size=      12kB time=00:00:02.50 bitrate=  37.7kbits/s    
    
10-28 17:47:11.475: I/System.out(14784): video:0kB audio:11kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.363914%
    
10-28 17:47:11.475: I/System.out(14784): FFmpeg function: onFinish()

  • FFMPEG multiple .jpg to .mp4 - different slide lengths in output

    25 octobre 2015, par Brooks

    I have 6 .jpg files in a folder and using the code below I get a video in which each .jpg plays for 5 seconds so the video has 30 seconds in total.

    How can the code be altered so the first slide to have a different playtime (8 seconds) than the rest so the total output video length to be 33 seconds ?

    ffmpeg -i audio.mp3 -framerate 1/5 -i image%d.jpg -c:v libx264 -qscale:v 1 -shortest -s:v 640x480 -tune stillimage -c:a aac -strict experimental -b:a 192k -pix_fmt yuv420p -filter_complex "[0:a]volume=1[aout]" -r 25 -map 1:v -map "[aout]" out6.mp4

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