Recherche avancée

Médias (1)

Mot : - Tags -/biomaping

Autres articles (56)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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

Sur d’autres sites (12220)

  • Turning images into videos with ffmpeg

    9 décembre 2014, par user3276588

    I asked this on another forum but never had any luck. I found the following command online that is supposed to create a video from images(duration of 5 seconds each) using FFmpeg.

    ffmpeg -f image2 -r 1/5 -i img%03d.png -vcodec libx264 out.mp4

    I have ran that and I have two images named img001.png and img002.png, however when I play out.mp4, it’s only a 5 second clip with img001.png being played. What’s really strange as well, is in my Windows Media Player, it thinks it’s 10 seconds long (2 images @ 10 seconds), but when the gauge gets half way through(5 seconds) the video, it ends.

    Any suggestions of what could be going on ?

    I also tried a bunch of other commands I found online but never had any luck. They would end up showing both images, but the first one would just flash for a fraction of a second, or some other ones would do the same thing would happen to the second image at the end of the video.

    I have it ImageMagick installed into XAMPP on my Windows Vista PC. I can provide my command line output from the command if needed.

    Edit : Added command line output

    C:\xampp\htdocs>ffmpeg -f image2 -r 1/5 -i img%03d.png -vcodec libx264 out.mp4
    ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers
     built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
    sm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libo
    pencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
    bschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
    twolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enabl
    e-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
     libavutil      52. 19.100 / 52. 19.100
     libavcodec     55.  0.100 / 55.  0.100
     libavformat    55.  0.100 / 55.  0.100
     libavdevice    54.  4.100 / 54.  4.100
     libavfilter     3. 45.103 /  3. 45.103
     libswscale      2.  2.100 /  2.  2.100
     libswresample   0. 17.102 /  0. 17.102
     libpostproc    52.  2.100 / 52.  2.100
    Input #0, image2, from 'img%03d.png':
     Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: png, rgb24, 800x600 [SAR 1:1 DAR 4:3], 0.20 tbr, 0.20 tb
    n, 0.20 tbc
    [libx264 @ 0032cae0] using SAR=1/1
    [libx264 @ 0032cae0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ
    [libx264 @ 0032cae0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
    [libx264 @ 0032cae0] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Cop
    yright 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
    block=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1
    me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chr
    oma_qp_offset=4 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 i
    nterlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
    b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=1 scenecu
    t=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0
    qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to 'out.mp4':
     Metadata:
       encoder         : Lavf55.0.100
       Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 800x600 [SAR 1:1
    DAR 4:3], q=-1--1, 16384 tbn, 0.20 tbc
    Stream mapping:
     Stream #0:0 -> #0:0 (png -> libx264)
    Press [q] to stop, [?] for help
    frame=    2 fps=0.0 q=2621023.0 Lsize=      37kB time=00:00:10.00 bitrate=  30.0
    kbits/s
    video:36kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.142993%
    [libx264 @ 0032cae0] frame I:1     Avg QP:11.18  size: 17627
    [libx264 @ 0032cae0] frame P:1     Avg QP:11.45  size: 18415
    [libx264 @ 0032cae0] mb I  I16..4: 18.3% 69.5% 12.3%
    [libx264 @ 0032cae0] mb P  I16..4: 11.6% 60.1%  9.7%  P16..4:  8.9%  6.6%  2.2%
    0.0%  0.0%    skip: 0.8%
    [libx264 @ 0032cae0] 8x8 transform intra:71.4% inter:67.1%
    [libx264 @ 0032cae0] coded y,u,v intra: 57.0% 24.1% 22.3% inter: 42.6% 25.7% 16.
    4%
    [libx264 @ 0032cae0] i16 v,h,dc,p: 28% 50% 15%  8%
    [libx264 @ 0032cae0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 39% 28%  2%  2%  2%  3%
    3%  4%
    [libx264 @ 0032cae0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 53% 23%  1%  2%  2%  3%
    0%  2%
    [libx264 @ 0032cae0] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0032cae0] kb/s:28.83

    C:\xampp\htdocs>
  • ffmeg does not convert all of the frames to video

    13 janvier 2018, par Z.Grey

    I have in total 7 frames and try to convert them a slideshow video. But whatever I tried with ffmeg I always end up with only 3 frames, here is my codes
    ffmpeg -f image2 -i gif%01d.png -vframes 7 test.mp4

    The sequence of images is gif0.png gif1.png.. gif6.png. I want all of them show up in the video but unfortunately, I always have the first 3 images in the video. Would you give a hint to convert all the frames to the video, please ?
    The log file

    [zgrey@skyler:Zelda]$ ffmpeg -f image2 -i gif%01d.png -vframes 7 test.mp4
    ffmpeg version 3.3.3 Copyright (c) 2000-2017 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 --disable-ffserver --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libtheora --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc --enable-libzimg
     libavutil      55. 58.100 / 55. 58.100
     libavcodec     57. 89.100 / 57. 89.100
     libavformat    57. 71.100 / 57. 71.100
     libavdevice    57.  6.100 / 57.  6.100
     libavfilter     6. 82.100 /  6. 82.100
     libavresample   3.  5.  0 /  3.  5.  0
     libswscale      4.  6.100 /  4.  6.100
     libswresample   2.  7.100 /  2.  7.100
     libpostproc    54.  5.100 / 54.  5.100
    Input #0, image2, from 'gif%01d.png':
     Duration: 00:00:00.28, start: 0.000000, bitrate: N/A
       Stream #0:0: Video: png, pal8(pc), 736x727 [SAR 72:72 DAR 736:727], 25 fps, 25 tbr, 25 tbn, 25 tbc
    File 'test.mp4' already exists. Overwrite ? [y/N] y
    Stream mapping:
     Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    No pixel format specified, yuv444p for H.264 encoding chosen.
    Use -pix_fmt yuv420p for compatibility with outdated media players.
    [libx264 @ 0x3a9fee0] using SAR=1/1
    [libx264 @ 0x3a9fee0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    [libx264 @ 0x3a9fee0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
    [libx264 @ 0x3a9fee0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to 'test.mp4':
     Metadata:
       encoder         : Lavf57.71.100
       Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 736x727 [SAR 1:1 DAR 736:727], q=-1--1, 25 fps, 12800 tbn, 25 tbc
       Metadata:
         encoder         : Lavc57.89.100 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    frame=    7 fps=0.0 q=-1.0 Lsize=     107kB time=00:00:00.16 bitrate=5496.7kbits/s speed=0.264x    
    video:106kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.860164%
    [libx264 @ 0x3a9fee0] frame I:1     Avg QP:24.11  size: 77212
    [libx264 @ 0x3a9fee0] frame P:2     Avg QP:30.73  size:  6544
    [libx264 @ 0x3a9fee0] frame B:4     Avg QP:32.11  size:  4516
    [libx264 @ 0x3a9fee0] consecutive B-frames: 14.3% 28.6%  0.0% 57.1%
    [libx264 @ 0x3a9fee0] mb I  I16..4:  5.2% 63.8% 31.0%
    [libx264 @ 0x3a9fee0] mb P  I16..4:  0.4%  2.3%  5.6%  P16..4:  5.3%  0.5%  0.1%  0.0%  0.0%    skip:85.8%
    [libx264 @ 0x3a9fee0] mb B  I16..4:  0.2%  0.3%  3.8%  B16..8:  5.5%  0.3%  0.1%  direct: 0.1%  skip:89.6%  L0:47.4% L1:52.3% BI: 0.3%
    [libx264 @ 0x3a9fee0] 8x8 transform intra:52.1% inter:31.9%
    [libx264 @ 0x3a9fee0] coded y,u,v intra: 81.0% 45.2% 41.2% inter: 0.6% 0.5% 0.4%
    [libx264 @ 0x3a9fee0] i16 v,h,dc,p: 18% 30% 43%  9%
    [libx264 @ 0x3a9fee0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 19% 36%  5%  5%  5%  7%  5%  7%
    [libx264 @ 0x3a9fee0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 26% 16%  6%  6%  5%  7%  4%  6%
    [libx264 @ 0x3a9fee0] Weighted P-Frames: Y:0.0% UV:0.0%
    [libx264 @ 0x3a9fee0] ref P L0: 32.6%  5.7% 45.0% 16.7%
    [libx264 @ 0x3a9fee0] ref B L0: 78.1% 21.9%
    [libx264 @ 0x3a9fee0] ref B L1: 96.7%  3.3%
    [libx264 @ 0x3a9fee0] kb/s:3096.03
  • How to convert webp images to MP4 video using ffmpeg

    12 octobre 2016, par Sunny Tambi

    I have tried many possible command line options with ffmpeg, however not getting this to work. I want to convert series of webp images to a mp4 video.
    Some commands that i tried are :

    ffmpeg -i img%04d.webp out.mp4

    ffmpeg -i img%04d.webp -c:v libx264 out.mp4

    ffmpeg -i img%04d.webp -pix_fmt yuv420p out.mp4

    ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 out.mp4

    ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -b:v 0 out.mp4

    None of them creates an mp4 video. A mp4 file, though, gets created, however it is of 0 sec. Here is a sample output of one of the execution :

    ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -y out.mp4

    ffmpeg version N-81045-g450cf40 Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 5.4.0 (GCC)
     configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
    libavutil      55. 28.100 / 55. 28.100
    libavcodec     57. 50.100 / 57. 50.100
    libavformat    57. 42.100 / 57. 42.100
    libavdevice    57.  0.102 / 57.  0.102
    libavfilter     6. 47.100 /  6. 47.100
     libswscale      4.  1.100 /  4.  1.100
    libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    Input #0, image2, from 'img%04d.webp':
     Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: webp, yuva420p(tv, bt470bg/unknown/unknown), 320x568, 25 tbr, 25 tbn, 25 tbc
    [libx264 @ 00000000006dbbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    [libx264 @ 00000000006dbbc0] profile High, level 2.1
    [libx264 @ 00000000006dbbc0] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [mp4 @ 00000000006d8700] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    Output #0, mp4, to 'out.mp4':
    Metadata:
    encoder : Lavf57.42.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x568, q=-1--1, 25 fps, 12800 tbn, 25 tbc
    Metadata:
    encoder : Lavc57.50.100 libx264
    Side data:
    cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream mapping:
    Stream #0:0 -> #0:0 (webp (native) -> h264 (libx264))
    Press [q] to stop, [?] for help
    frame= 1 fps=0.0 q=30.0 Lsize= 3kB time=00:00:00.00 bitrate=265435.9kbits/s speed=0.011x video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 44.661823%
    [libx264 @ 00000000006dbbc0] frame I:1     Avg QP:23.37  size:  1100
    [libx264 @ 00000000006dbbc0] mb I  I16..4: 24.4% 71.5%  4.0%
    [libx264 @ 00000000006dbbc0] 8x8 transform intra:71.5%
    [libx264 @ 00000000006dbbc0] coded y,uvDC,uvAC intra: 6.1% 5.4% 4.2%
    [libx264 @ 00000000006dbbc0] i16 v,h,dc,p: 80% 14%  6%  1%
    [libx264 @ 00000000006dbbc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 46%  5% 48%  0%  0%  0%  0%  0%  0%
    [libx264 @ 00000000006dbbc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 20% 42%  2%  2%  2%  2%  2%  3%
    [libx264 @ 00000000006dbbc0] i8c dc,h,v,p: 89%  9%  1%  0%
    [libx264 @ 00000000006dbbc0] kb/s:220.00

    Excerpt from the above :

    frame=1
    fps=0.0
    time=00:00:00.00
    video:2kB

    This should give the idea of what I am trying to say.

    Need help if someone can tell how to convert a series of webp images to MP4 video.