Recherche avancée

Médias (1)

Mot : - Tags -/artwork

Autres articles (58)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • 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

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (7125)

  • Dropped frames in ffmpeg when adding an overlay

    31 janvier 2016, par Juanan

    I’m trying to add a white overlay box using ffmpeg to an mp4 file downloaded from YouTube. I know the syntax and it is working OK with small videos, but I’m struggling to get it to work in a longer one. This is the exact command :

    ffmpeg -i intro.mp4 -strict -2 -vf "color=white:200x50 [over]; [in][over] overlay=250:320:enable=between(t\,0\,52) [out]" out.mp4

    Initially, it works like a charm :

    $ ffmpeg -i intro.mp4 -preset slow -strict -2 -vf "color=white:200x50 [over]; [in][over] overlay=250:320:enable=between(t\,0\,52) [out]" -t 60 out.mp4
    
ffmpeg version 2.5.3 Copyright (c) 2000-2015 the FFmpeg developers
    
  built on Mar 26 2015 23:00:53 with Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
    
  configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-libtheora --enable-libschroedinger --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-indev=jack --disable-outdev=xv --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --enable-vda --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
    
  libavutil      54. 15.100 / 54. 15.100
    
  libavcodec     56. 13.100 / 56. 13.100
    
  libavformat    56. 15.102 / 56. 15.102
    
  libavdevice    56.  3.100 / 56.  3.100
    
  libavfilter     5.  2.103 /  5.  2.103
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'intro.mp4':
    
  Metadata:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    creation_time   : 2014-01-30 16:48:50
    
  Duration: 00:13:30.70, start: 0.000000, bitrate: 692 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 497 kb/s, 25 fps, 25 tbr, 50 tbn, 50 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-01-30 16:48:54
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
File 'out.mp4' already exists. Overwrite ? [y/N] y
    
[libx264 @ 0x7fa8cb82fa00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
    
[libx264 @ 0x7fa8cb82fa00] profile High, level 3.1
    
[libx264 @ 0x7fa8cb82fa00] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=3 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=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 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:
    
    major_brand     : mp42
    
    minor_version   : 0
    
    compatible_brands: isommp42
    
    encoder         : Lavf56.15.102
    
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
      encoder         : Lavc56.13.100 libx264
    
    Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 2014-01-30 16:48:54
    
      handler_name    : IsoMedia File Produced by Google, 5-11-2011
    
      encoder         : Lavc56.13.100 aac
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
frame= 1500 fps= 47 q=-1.0 Lsize=    2518kB time=00:01:00.00 bitrate= 343.8kbits/s

    But after some time, that command starts yelling dropped frames :

    frame=20269 fps= 21 q=-1.0 Lsize=   23283kB time=00:13:30.70 bitrate= 235.3kbits/s dup=0 drop=548431

    and it never ends. Any clue ?

  • FFMPEG : create movie from timestamped images

    28 mai 2017, par HyperDevil

    Im trying to make a small movie file from a folder with webcam images.

    They are named like this :
    00-00-38.jpg
    00-05-37.jpg
    00-10-37.jpg
    00-15-37.jpg

    H-M-S.jpg format

    Although i tried patterntype glob and simpler commands i cannot get it to work.

    This is what i tried :

    ffmpeg -r 1 -pattern_type glob -i '*.jpg' -scale=720:-1 -c:v libx264 out.mp4 
    
(got only one image)
    
ffmpeg -r 25 -i *.jpg -vf "scale=720:-1" output.mp4
    
(same size as a jpg file but no video)

    Console output :

    ffmpeg -framerate 1 -pattern_type glob -i "*.jpg" -vf scale=720:-1 -c:v libx264 -pix_fmt yuv420p out.mp4
    
    ffmpeg version 1.0.10 Copyright (c) 2000-2014 the FFmpeg developers  built on Jul 25 2014 07:50:40 with gcc 4.7 (Debian 4.7.2-5)
    
      configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' 
    
    --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis 
    
    --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-li
    
    bopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --
    
    enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --
    
    enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64
    
    -linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enabl
    
    e-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis
    
      libavutil      51. 73.101 / 51. 73.101
    
      libavcodec     54. 59.100 / 54. 59.100
    
      libavformat    54. 29.104 / 54. 29.104
    
      libavdevice    54.  2.101 / 54.  2.101
    
      libavfilter     3. 17.100 /  3. 17.100
    
      libswscale      2.  1.101 /  2.  1.101
    
      libswresample   0. 15.100 /  0. 15.100
    
      libpostproc    52.  0.100 / 52.  0.100
    
    [image2 @ 0x1d53f00] max_analyze_duration 5000000 reached at 5000000
    
    Input #0, image2, from '*.jpg':
    
      Duration: 00:04:48.00, start: 0.000000, bitrate: N/A
    
        Stream #0:0: Video: mjpeg, yuvj420p, 800x593 [SAR 96:96 DAR 800:593], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
    [libx264 @ 0x1d35bc0] using SAR=1780/1779
    
    [libx264 @ 0x1d35bc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 SSEMisalign LZCNT BMI1
    
    [libx264 @ 0x1d35bc0] profile High, level 2.2
    
    [libx264 @ 0x1d35bc0] 264 - core 132 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options:  ca
    
    bac=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 8x8dc
    
    t=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 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 key
    
    int_min=1 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 'out.mp4':
    
      Metadata:
    
        encoder         : Lavf54.29.104
    
        Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 720x534 [SAR 1780:1779 DAR 800:593], q=-1--1, 1 tbn, 1 tbc
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (mjpeg -> libx264)
    
    Press [q] to stop, [?] for help
    
    frame=  288 fps=145 q=32763.0 Lsize=     349kB time=00:04:46.00 bitrate=  10.0kbits/s
    
    video:345kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.208469%
    
    [libx264 @ 0x1d35bc0] frame I:2     Avg QP: 2.80  size:130328
    
    [libx264 @ 0x1d35bc0] frame P:73    Avg QP: 4.70  size:  1167
    
    [libx264 @ 0x1d35bc0] frame B:213   Avg QP:17.33  size:    30
    
    [libx264 @ 0x1d35bc0] consecutive B-frames:  1.4%  0.0%  0.0% 98.6%
    
    [libx264 @ 0x1d35bc0] mb I  I16..4: 20.2% 24.9% 55.0%
    
    [libx264 @ 0x1d35bc0] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  4.3%  0.1%  0.2%  0.0%  0.0%    skip:95.5%
    
    [libx264 @ 0x1d35bc0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.8%  0.0%  0.0%  direct: 0.0%  skip:99.2%  L0: 5.4% L1:94.5% BI: 0.0
    
    %
    
    [libx264 @ 0x1d35bc0] 8x8 transform intra:24.9% inter:51.5%
    
    [libx264 @ 0x1d35bc0] coded y,uvDC,uvAC intra: 99.4% 0.0% 0.0% inter: 0.6% 0.0% 0.0%
    
    [libx264 @ 0x1d35bc0] i16 v,h,dc,p:  5% 19% 52% 25%
    
    [libx264 @ 0x1d35bc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 28% 21%  4%  6%  4%  8%  5% 15%
    
    [libx264 @ 0x1d35bc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 27% 13%  6%  8%  5%  9%  6% 12%
    
    [libx264 @ 0x1d35bc0] i8c dc,h,v,p: 100%  0%  0%  0%
    
    [libx264 @ 0x1d35bc0] Weighted P-Frames: Y:0.0% UV:0.0%
    
    [libx264 @ 0x1d35bc0] ref P L0: 98.1%  0.0%  1.7%  0.2%
    
    [libx264 @ 0x1d35bc0] ref B L0: 52.0% 48.0%
    
    [libx264 @ 0x1d35bc0] ref B L1: 73.0% 27.0%
    
    [libx264 @ 0x1d35bc0] kb/s:9.78

    The video is 364KB without any video.

  • FFMPEG : create movie from timestamped images

    26 août 2015, par HyperDevil

    Im trying to make a small movie file from a folder with webcam images.

    They are named like this :
    00-00-38.jpg
    00-05-37.jpg
    00-10-37.jpg
    00-15-37.jpg

    H-M-S.jpg format

    Although i tried patterntype glob and simpler commands i cannot get it to work.

    This is what i tried :

    ffmpeg -r 1 -pattern_type glob -i '*.jpg' -scale=720:-1 -c:v libx264 out.mp4 
    
(got only one image)
    
ffmpeg -r 25 -i *.jpg -vf "scale=720:-1" output.mp4
    
(same size as a jpg file but no video)

    Console output :

    ffmpeg -framerate 1 -pattern_type glob -i "*.jpg" -vf scale=720:-1 -c:v libx264 -pix_fmt yuv420p out.mp4
    
    ffmpeg version 1.0.10 Copyright (c) 2000-2014 the FFmpeg developers  built on Jul 25 2014 07:50:40 with gcc 4.7 (Debian 4.7.2-5)
    
      configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' 
    
    --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis 
    
    --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-li
    
    bopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --
    
    enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --
    
    enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64
    
    -linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enabl
    
    e-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis
    
      libavutil      51. 73.101 / 51. 73.101
    
      libavcodec     54. 59.100 / 54. 59.100
    
      libavformat    54. 29.104 / 54. 29.104
    
      libavdevice    54.  2.101 / 54.  2.101
    
      libavfilter     3. 17.100 /  3. 17.100
    
      libswscale      2.  1.101 /  2.  1.101
    
      libswresample   0. 15.100 /  0. 15.100
    
      libpostproc    52.  0.100 / 52.  0.100
    
    [image2 @ 0x1d53f00] max_analyze_duration 5000000 reached at 5000000
    
    Input #0, image2, from '*.jpg':
    
      Duration: 00:04:48.00, start: 0.000000, bitrate: N/A
    
        Stream #0:0: Video: mjpeg, yuvj420p, 800x593 [SAR 96:96 DAR 800:593], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
    [libx264 @ 0x1d35bc0] using SAR=1780/1779
    
    [libx264 @ 0x1d35bc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX XOP FMA4 FMA3 SSEMisalign LZCNT BMI1
    
    [libx264 @ 0x1d35bc0] profile High, level 2.2
    
    [libx264 @ 0x1d35bc0] 264 - core 132 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options:  ca
    
    bac=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 8x8dc
    
    t=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 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 key
    
    int_min=1 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 'out.mp4':
    
      Metadata:
    
        encoder         : Lavf54.29.104
    
        Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 720x534 [SAR 1780:1779 DAR 800:593], q=-1--1, 1 tbn, 1 tbc
    
    Stream mapping:
    
      Stream #0:0 -> #0:0 (mjpeg -> libx264)
    
    Press [q] to stop, [?] for help
    
    frame=  288 fps=145 q=32763.0 Lsize=     349kB time=00:04:46.00 bitrate=  10.0kbits/s
    
    video:345kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.208469%
    
    [libx264 @ 0x1d35bc0] frame I:2     Avg QP: 2.80  size:130328
    
    [libx264 @ 0x1d35bc0] frame P:73    Avg QP: 4.70  size:  1167
    
    [libx264 @ 0x1d35bc0] frame B:213   Avg QP:17.33  size:    30
    
    [libx264 @ 0x1d35bc0] consecutive B-frames:  1.4%  0.0%  0.0% 98.6%
    
    [libx264 @ 0x1d35bc0] mb I  I16..4: 20.2% 24.9% 55.0%
    
    [libx264 @ 0x1d35bc0] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  4.3%  0.1%  0.2%  0.0%  0.0%    skip:95.5%
    
    [libx264 @ 0x1d35bc0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.8%  0.0%  0.0%  direct: 0.0%  skip:99.2%  L0: 5.4% L1:94.5% BI: 0.0
    
    %
    
    [libx264 @ 0x1d35bc0] 8x8 transform intra:24.9% inter:51.5%
    
    [libx264 @ 0x1d35bc0] coded y,uvDC,uvAC intra: 99.4% 0.0% 0.0% inter: 0.6% 0.0% 0.0%
    
    [libx264 @ 0x1d35bc0] i16 v,h,dc,p:  5% 19% 52% 25%
    
    [libx264 @ 0x1d35bc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 28% 21%  4%  6%  4%  8%  5% 15%
    
    [libx264 @ 0x1d35bc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 27% 13%  6%  8%  5%  9%  6% 12%
    
    [libx264 @ 0x1d35bc0] i8c dc,h,v,p: 100%  0%  0%  0%
    
    [libx264 @ 0x1d35bc0] Weighted P-Frames: Y:0.0% UV:0.0%
    
    [libx264 @ 0x1d35bc0] ref P L0: 98.1%  0.0%  1.7%  0.2%
    
    [libx264 @ 0x1d35bc0] ref B L0: 52.0% 48.0%
    
    [libx264 @ 0x1d35bc0] ref B L1: 73.0% 27.0%
    
    [libx264 @ 0x1d35bc0] kb/s:9.78

    The video is 364KB without any video.

Navigation