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Autres articles (31)

  • 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) (...)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (4954)

  • How to speed up creating video mosaic with ffmpeg

    7 janvier 2020, par DALER RAHIMOV

    I’m looking to speed up ffmpeg pipeline in some way (camera configuration, different filters or any other ideas would be appreciated).

    I have a device that captures videos streams and later creates mosaic video view from 4 cameras. The main issue I’m having is that it’s taking too long to create mosaic video. There is no GPU on the device that could be used to accelerate the process so I’m left with camera configurations (Hikvision).

    Here is what I have so far

    About 160 sec on Intel J-1900 :

    - 5 min video files,
    
- 640*480 resolution,
    
- h264 encoding,
    
- 10 fps,
    
- 1024 max bitrate,
    
- 10 I-frame interval,      

    Command that I’m using :

    ffmpeg -y -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 \
    
   -filter_complex " \
    
      color=c=black:size=1280x720 [base]; \
    
      [0:v] setpts=PTS-STARTPTS, scale=640x360 [cam0]; \
    
      [1:v] setpts=PTS-STARTPTS, scale=640x360 [cam1]; \
    
      [2:v] setpts=PTS-STARTPTS, scale=640x360 [cam2]; \
    
      [3:v] setpts=PTS-STARTPTS, scale=640x360 [cam3]; \
    
      [base][cam0] overlay=shortest=1:x=0:y=0  [z1]; \
    
      [z1][cam1] overlay=shortest=1:x=640:y=0  [z2]; \
    
      [z2][cam2] overlay=shortest=1:x=0:y=360  [z3]; \
    
      [z3][cam3] overlay=shortest=1:x=640:y=360 \
    
    " \
    
    -an -c:v libx264  -x264-params keyint=10 \
    
    -movflags faststart -preset fast -nostats -loglevel quiet -r 10.000000 mosaic.mp4

    Thanks

    Here is full output as requested

    ffmpeg -y -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 \
    
>    -filter_complex " \
    
>       color=c=black:size=1280x720 [base]; \
    
>       [0:v] setpts=PTS-STARTPTS, scale=640x360 [cam0]; \
    
>       [1:v] setpts=PTS-STARTPTS, scale=640x360 [cam1]; \
    
>       [2:v] setpts=PTS-STARTPTS, scale=640x360 [cam2]; \
    
>       [3:v] setpts=PTS-STARTPTS, scale=640x360 [cam3]; \
    
>       [base][cam0] overlay=shortest=1:x=0:y=0  [z1]; \
    
>       [z1][cam1] overlay=shortest=1:x=640:y=0  [z2]; \
    
>       [z2][cam2] overlay=shortest=1:x=0:y=360  [z3]; \
    
>       [z3][cam3] overlay=shortest=1:x=640:y=360 \
    
>     " \
    
>     -an -c:v libx264  -x264-params keyint=10 \
    
>     -movflags faststart -preset fast -nostats -r 10.000000 mosaic.mp4
    
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg -y -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4 -i 1578324600-1-stitched.mp4    -filter_complex " \
    
      color=c=black:size=1280x720 [base]; \
    
      [0:v] setpts=PTS-STARTPTS, scale=640x360 [cam0]; \
    
      [1:v] setpts=PTS-STARTPTS, scale=640x360 [cam1]; \
    
      [2:v] setpts=PTS-STARTPTS, scale=640x360 [cam2]; \
    
      [3:v] setpts=PTS-STARTPTS, scale=640x360 [cam3]; \
    
      [base][cam0] overlay=shortest=1:x=0:y=0  [z1]; \
    
      [z1][cam1] overlay=shortest=1:x=640:y=0  [z2]; \
    
      [z2][cam2] overlay=shortest=1:x=0:y=360  [z3]; \
    
      [z3][cam3] overlay=shortest=1:x=640:y=360 \
    
    "     -an -c:v libx264  -x264-params keyint=10     -movflags faststart -preset fast -r 10.000000 mosaic.mp4
    
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
    
  libavutil      54. 31.100 / 54. 31.100
    
  libavcodec     56. 60.100 / 56. 60.100
    
  libavformat    56. 40.101 / 56. 40.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 40.101 /  5. 40.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.101 /  1.  2.101
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1578324600-1-stitched.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf56.40.101
    
  Duration: 00:05:00.07, start: 0.000000, bitrate: 96 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x480, 95 kb/s, 10 fps, 25 tbr, 10240 tbn, 20 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '1578324600-1-stitched.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf56.40.101
    
  Duration: 00:05:00.07, start: 0.000000, bitrate: 96 kb/s
    
    Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x480, 95 kb/s, 10 fps, 25 tbr, 10240 tbn, 20 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '1578324600-1-stitched.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf56.40.101
    
  Duration: 00:05:00.07, start: 0.000000, bitrate: 96 kb/s
    
    Stream #2:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x480, 95 kb/s, 10 fps, 25 tbr, 10240 tbn, 20 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '1578324600-1-stitched.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf56.40.101
    
  Duration: 00:05:00.07, start: 0.000000, bitrate: 96 kb/s
    
    Stream #3:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x480, 95 kb/s, 10 fps, 25 tbr, 10240 tbn, 20 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
[libx264 @ 0x171c9e0] using SAR=1/1
    
[libx264 @ 0x171c9e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
    
[libx264 @ 0x171c9e0] profile High, level 3.1
    
[libx264 @ 0x171c9e0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=1 keyint=10 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=10 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 'mosaic.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf56.40.101
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 10 fps, 10240 tbn, 10 tbc (default)
    
    Metadata:
    
      encoder         : Lavc56.60.100 libx264
    
Stream mapping:
    
  Stream #0:0 (h264) -> setpts
    
  Stream #1:0 (h264) -> setpts
    
  Stream #2:0 (h264) -> setpts
    
  Stream #3:0 (h264) -> setpts
    
  overlay -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
[mp4 @ 0x1730600] Starting second pass: moving the moov atom to the beginning of the filerop=4497
    
frame= 3002 fps= 17 q=-1.0 Lsize=   51052kB time=00:05:00.00 bitrate=1394.1kbits/s dup=0 drop=4498
    
video:51017kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.068308%
    
[libx264 @ 0x171c9e0] frame I:301   Avg QP:15.80  size:154257
    
[libx264 @ 0x171c9e0] frame P:959   Avg QP:21.69  size:  5486
    
[libx264 @ 0x171c9e0] frame B:1742  Avg QP:22.73  size:   315
    
[libx264 @ 0x171c9e0] consecutive B-frames: 22.0%  0.0%  5.8% 72.2%
    
[libx264 @ 0x171c9e0] mb I  I16..4:  9.7% 31.0% 59.4%
    
[libx264 @ 0x171c9e0] mb P  I16..4:  0.6%  0.7%  0.2%  P16..4: 14.5%  2.8%  2.4%  0.0%  0.0%    skip:78.7%
    
[libx264 @ 0x171c9e0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  2.7%  0.3%  0.0%  direct: 1.4%  skip:95.5%  L0:25.9% L1:73.3% BI: 0.9%
    
[libx264 @ 0x171c9e0] 8x8 transform intra:31.8% inter:43.5%
    
[libx264 @ 0x171c9e0] coded y,uvDC,uvAC intra: 83.2% 85.2% 69.5% inter: 3.0% 6.3% 0.7%
    
[libx264 @ 0x171c9e0] i16 v,h,dc,p: 35% 21%  8% 36%
    
[libx264 @ 0x171c9e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 42% 10%  3%  2%  3%  6%  4%  5%
    
[libx264 @ 0x171c9e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 33%  9%  6%  5%  5%  7%  5%  6%
    
[libx264 @ 0x171c9e0] i8c dc,h,v,p: 44% 29% 20%  7%
    
[libx264 @ 0x171c9e0] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x171c9e0] ref P L0: 93.8%  6.2%
    
[libx264 @ 0x171c9e0] ref B L0: 91.7%  8.3%
    
[libx264 @ 0x171c9e0] ref B L1: 89.3% 10.7%
    
[libx264 @ 0x171c9e0] kb/s:1392.16

  • Is there a way to tell ffmpeg to speed up a video so its duration matches the duration of the audio ?

    7 février 2020, par Qix - MONICA WAS MISTREATED

    Just as the title describes ; is there a simple way to tell ffmpeg to take in video and audio tracks and to speed up (or slow down, I suppose) the video so that it matches the duration of the audio ? I can calculate PTS values but have no idea how to do it in an automated way.

  • avfilter/vf_v360 : speed up fisheye input calculation

    29 février 2020, par Paul B Mahol
    avfilter/vf_v360 : speed up fisheye input calculation
    • [DH] libavfilter/vf_v360.c

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