Recherche avancée

Médias (0)

Mot : - Tags -/diogene

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (73)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

Sur d’autres sites (7696)

  • Why menconder fps rate does not work ?

    2 mars 2016, par ACR

    I’m using mencoder to create a video out of some .png files. The problem is that the frame rate doesn’t change, regardless of the -fps flag. The output video has different time lengths (in their properties), but the video’s size and speed are always the same (regardless of the FPS chosen).

    I just want to create a shorted video by using higher FPS rates. In short, a "time-lapse" of my original set of images. What am I doing wrong with mencoder ? I’m using the following command :

    mencoder mf://./IMG/images*.png -mf w=800:h=600:fps=20:type=png -ovc copy -oac copy -o video.avi

  • FFMpeg generating screenshots drop frames

    6 octobre 2011, par Morgan

    I'm using FFMpeg to extract frames from a video file, and for most videos it works flawlessly. But certain videos it seems to have to seek to the position that I want to take the screenshot from, and drops all the frames on the way there taking quite a while if the position i'm generating a screenshot from is near the end of the video. Here is the command I'm using to extract my screenshot.

    ffmpeg -ss 60 -i input.mkv -vframes 1 -f image2 -an -r 1/5 output.jpg

    and the output I receive

    ffmpeg version 0.8.3, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Sep 20 2011 00:46:47 with clang 2.1 (tags/Apple/clang-163.7.1)
    
  configuration: --prefix=/Users/Morgan/Downloads/installed/ffmpeg --extra-libs=/Users/Morgan/Downloads/installed/lib/libfaac.a --enable-gpl --extra-cflags=-I/Users/Morgan/Downloads/installed/include --disable-ffplay --disable-ffserver --disable-shared --disable-debug --extra-ldflags=-L/Users/Morgan/Downloads/installed/lib --enable-libmp3lame --enable-libfaac --enable-libx264 --enable-nonfree --cc=clang
    
  libavutil    51.  9. 1 / 51.  9. 1
    
  libavcodec   53.  7. 0 / 53.  7. 0
    
  libavformat  53.  4. 0 / 53.  4. 0
    
  libavdevice  53.  1. 1 / 53.  1. 1
    
  libavfilter   2. 23. 0 /  2. 23. 0
    
  libswscale    2.  0. 0 /  2.  0. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[matroska,webm @ 0x7f9dd3007c00] Estimating duration from bitrate, this may be inaccurate
    

    
Seems stream 0 codec frame rate differs from container frame rate: 47.95 (500000/10427) -> 23.98 (24000/1001)
    
Input #0, matroska,webm, from 'input.mkv':
    
  Duration: 01:01:36.16, start: 0.000000, bitrate: 576 kb/s
    
    Stream #0.0(eng): Video: h264 (High), yuv420p, 1280x720, PAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    
    Metadata:
    
      title           : Input Video
    
    Stream #0.1(eng): Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s (default)
    
    Metadata:
    
      title           : English Dolby Digital 5.1 AC3
    
    Stream #0.2(eng): Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
    
    Metadata:
    
      title           : Commentary
    
    Stream #0.3(eng): Subtitle: [0][0][0][0] / 0x0000 (default)
    
    Metadata:
    
      title           : English
    
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
    
[buffer @ 0x106c10c00] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
    
[buffersink @ 0x106c10e40] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x106c11140] w:1280 h:720 fmt:yuv420p -> w:1280 h:720 fmt:yuvj420p flags:0x4
    
Output #0, image2, to 'output.jpg':
    
  Metadata:
    
    encoder         : Lavf53.4.0
    
    Stream #0.0(eng): Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 0.20 tbc (default)
    
    Metadata:
    
      title           : Input Video
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop, [?] for help
    
frame=    0 fps=  0 q=0.0 Lsize=      -0kB time=00:00:00.00 bitrate=   0.0kbits/s dup=0 drop=275    
    
video:0kB audio:0kB global headers:0kB muxing overhead -inf%

  • What codec do I need to convert .wav to .mp3 with ffmpeg ?

    19 septembre 2011, par LedZeppelin

    I am able to convert from .mp3 files to .wav files.

    me@me-desktop:~$ ffmpeg -i Desktop/input.mp3 Desktop/output.wav
    
FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
    
  configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
    
  libavutil     49.15. 0 / 49.15. 0
    
  libavcodec    52.20. 1 / 52.20. 1
    
  libavformat   52.31. 0 / 52.31. 0
    
  libavdevice   52. 1. 0 / 52. 1. 0
    
  libavfilter    0. 4. 0 /  0. 4. 0
    
  libswscale     0. 7. 1 /  0. 7. 1
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
  built on Mar 31 2011 18:53:20, gcc: 4.4.3
    
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 0
    
    Last message repeated 1 times
    
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 1
    
    Last message repeated 1 times
    
Input #0, mp3, from 'Desktop/input.mp3':
    
  Duration: 00:04:45.31, start: 0.000000, bitrate: 256 kb/s
    
    Stream #0.0: Audio: mp3, 48000 Hz, stereo, s16, 256 kb/s
    
Output #0, wav, to 'Desktop/output.wav':
    
    Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop encoding
    
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 0
    
    Last message repeated 1 times
    
[mp3 @ 0x9449510]mdb:511, lastbuf:0 skipping granule 1
    
size=   42944kB time=229.03 bitrate=1536.0kbits/s    
    
video:0kB audio:42944kB global headers:0kB muxing overhead 0.000100%

    However when I try to convert the same .wav file back to an .mp3 I get the following error : Unsupported codec for output stream #0.0

    me@me-desktop:~$ ffmpeg -i Desktop/output.wav Desktop/output2.mp3
    
FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
    
  configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
    
  libavutil     49.15. 0 / 49.15. 0
    
  libavcodec    52.20. 1 / 52.20. 1
    
  libavformat   52.31. 0 / 52.31. 0
    
  libavdevice   52. 1. 0 / 52. 1. 0
    
  libavfilter    0. 4. 0 /  0. 4. 0
    
  libswscale     0. 7. 1 /  0. 7. 1
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
  built on Mar 31 2011 18:53:20, gcc: 4.4.3
    
Input #0, wav, from 'Desktop/output.wav':
    
  Duration: 00:03:49.03, bitrate: 1536 kb/s
    
    Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    
Output #0, mp3, to 'Desktop/output2.mp3':
    
    Stream #0.0: Audio: 0x0000, 48000 Hz, stereo, s16, 64 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Unsupported codec for output stream #0.0

    I've already tried installing unstripped-51 per a suggestion from a previous question but I am still unable to convert from .wav to .mp3

Navigation