Recherche avancée

Médias (1)

Mot : - Tags -/école

Autres articles (32)

  • 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.

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Liste des distributions compatibles

    26 avril 2011, par

    Le tableau ci-dessous correspond à la liste des distributions Linux compatible avec le script d’installation automatique de MediaSPIP. Nom de la distributionNom de la versionNuméro de version Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    Si vous souhaitez nous aider à améliorer cette liste, vous pouvez nous fournir un accès à une machine dont la distribution n’est pas citée ci-dessus ou nous envoyer le (...)

Sur d’autres sites (7660)

  • 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.

  • ffmpeg screen blending mode makes transparent png pink

    28 janvier 2014, par gilad s

    I have a sequence of PNG files with transparency - I'd like screen-blend them on top of a video

    ffmpeg -i video.mp4 -i "Images/%03d.png" -filter_complex "blend=all_mode='screen':all_opacity=0.7" output.mp4

    the images are indeed merged on top of the video but with a pink overlay ?!

    I also tried to add "-vcodec png" and "-vcodec libx264" and to try a .mov video but got the same result.

    ffmpeg version N-58061-g5231eec Copyright (c) 2000-2013 the FFmpeg developers
    built on Nov 14 2013 05:35:15 with gcc 4.6 (Debian 4.6.3-1)
    configuration: --prefix=/root/ffmpeg-static/64bit --extra-cflags='-I/root/ffmpeg-
    static/64bit/include -static' --extra-ldflags='-L/root/ffmpeg-static/64bit/lib -static'
    --extra-libs='-lxml2 -lexpat -lfreetype' --enable-static --disable-shared --disable-
    ffserver --disable-doc --enable-bzlib --enable-zlib --enable-postproc --enable-runtime-
    cpudetect --enable-libx264 --enable-gpl --enable-libtheora --enable-libvorbis --enable-
    libmp3lame --enable-gray --enable-libass --enable-libfreetype --enable-libopenjpeg --
    enable-libspeex --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-version3 --
    enable-libvpx
    libavutil      52. 52.100 / 52. 52.100
    libavcodec     55. 41.101 / 55. 41.101
    libavformat    55. 21.100 / 55. 21.100
    libavdevice    55.  5.100 / 55.  5.100
    libavfilter     3. 91.100 /  3. 91.100
    libswscale      2.  5.101 /  2.  5.101
    libswresample   0. 17.104 /  0. 17.104
    libpostproc    52.  3.100 / 52.  3.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1.mp4':
    Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf54.2.100
    Duration: 00:00:18.88, start: 0.000000, bitrate: 595 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x480, 461 kb/s,  
    25.16 fps, 25 tbr, 1000k tbn, 2000k tbc (default)
    Metadata:
    handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
    (default)
    Metadata:
    handler_name    : SoundHandler
    Input #1, image2, from 'Dots2/%03d.png':
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
    Stream #1:0: Video: png, rgba, 640x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
    [libx264 @ 0x292ad60] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
    [libx264 @ 0x292ad60] profile High, level 3.0
    [libx264 @ 0x292ad60] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Copyleft
    2003-2012 - 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4
    ip_ratio=1.40 aq=1:1.00
    Output #0, mp4, to 'output_Dots.mp4':
    Metadata:
    major_brand     : isom
    Stream #0:1(und): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 44100 Hz, stereo,
    s16, 128 kb/s (default)
    Metadata:
    handler_name    : SoundHandler
    Stream mapping:
    Stream #0:0 (h264) -> blend:top (graph 0)
    Stream #1:0 (png) -> blend:bottom (graph 0)
    blend (graph 0) -> Stream #0:0 (libx264)
    Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
    Press [q] to stop, [?] for help
    frame=  475 fps=105 q=-1.0 Lsize=    1660kB time=00:00:18.92 bitrate= 718.7kbits/s    
    video:1349kB audio:295kB subtitle:0 global headers:0kB muxing overhead 0.993598%
    [libx264 @ 0x292ad60] frame I:2     Avg QP:19.79  size: 33501
    [libx264 @ 0x292ad60] frame P:176   Avg QP:23.16  size:  5651
    [libx264 @ 0x292ad60] frame B:297   Avg QP:27.76  size:  1074
    [libx264 @ 0x292ad60] consecutive B-frames: 13.3%  8.8%  3.8% 74.1%
    [libx264 @ 0x292ad60] mb I  I16..4:  1.7% 69.9% 28.4%
    [libx264 @ 0x292ad60] mb P  I16..4:  3.3%  8.1%  1.0%  P16..4: 47.1% 14.7%  7.5%  0.0%  
    0.0%    skip:18.3%
    [libx264 @ 0x292ad60] mb B  I16..4:  0.1%  0.0%  0.0%  B16..8: 44.4%  2.6%  0.8%  
    direct: 0.9%  skip:51.2%  L0:46.0% L1:50.5% BI: 3.5%
    [libx264 @ 0x292ad60] 8x8 transform intra:64.9% inter:74.0%
    [libx264 @ 0x292ad60] coded y,uvDC,uvAC intra: 47.0% 50.4% 13.1% inter: 11.8% 12.7% 0.5%
    [libx264 @ 0x292ad60] i16 v,h,dc,p: 50% 18%  9% 23%
    [libx264 @ 0x292ad60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 15% 22%  4%  6%  6%  7%  5%  5%
    [libx264 @ 0x292ad60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 19% 19%  4%  6%  6%  6%  4%  4%
    [libx264 @ 0x292ad60] i8c dc,h,v,p: 55% 17% 25%  2%
    [libx264 @ 0x292ad60] Weighted P-Frames: Y:29.0% UV:23.9%
    [libx264 @ 0x292ad60] ref P L0: 63.5% 20.9% 13.2%  2.3%  0.2%
    [libx264 @ 0x292ad60] ref B L0: 96.8%  2.8%  0.4%
    [libx264 @ 0x292ad60] ref B L1: 98.4%  1.6%
    [libx264 @ 0x292ad60] kb/s:581.24