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  • 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 (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

Sur d’autres sites (5830)

  • FFmpeg produces empty file sometimes

    30 avril 2024, par Matan Malka

    I am currently using ffmpeg and attempting to convert multiple PNG files to MP4 video.

    


    My command is :

    


    ffmpeg -y -r 10 -i "videos-reporter/MC4xMzg3NDI1MTY2Mjg1MTk=/b8a7ee17d8ecfd199edbc5edc9691698/screenshots/%04d.png" -vcodec libx264 -pix_fmt yuv420p -vf "scale=1200:trunc(ow/a/2)*2","setpts=3.0*PTS" "videos-reporter/MC4xMzg3NDI1MTY2Mjg1MTk=/b8a7ee17d8ecfd199edbc5edc9691698/video.mp4"


    


    Sometimes, I'm unsure when the ffmpeg creates a 1kb empty video file that cannot be played.

    


    [0-1] stderr: ffmpeg version N-47683-g0e8eb07980-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers
[0-1]   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
[0-1]   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
[0-1]   libavutil      56. 24.101 / 56. 24.101
[0-1]   libavcodec     58. 42.100 / 58. 42.100
[0-1]   libavformat    58. 24.100 / 58. 24.100
[0-1]   libavdevice    58.  6.101 / 58.  6.101
[0-1]   libavfilter     7. 46.101 /  7. 46.101
[0-1]   libswscale      5.  4.100 /  5.  4.100
[0-1]   libswresample   3.  4.100 /  3.  4.100
[0-1]   libpostproc    55.  4.100 / 55.  4.100
[0-1] Input #0, image2, from '/workspace/1/s/videos-reporter/MC4xMzg3NDI1MTY2Mjg1MTk=/b8a7ee17d8ecfd199edbc5edc9691698/screenshots/%04d.png':
[0-1]   Duration: 00:00:18.08, start: 0.000000, bitrate: N/A
[0-1]     Stream #0:0: Video: png, rgba(pc), 1920x1080, 25 fps, 25 tbr, 25 tbn, 25 tbc
[0-1] Stream mapping:
[0-1]   Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
[0-1] Press [q] to stop, [?] for help
[0-1] [libx264 @ 0x6cb2140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[0-1] [libx264 @ 0x6cb2140] profile High, level 3.1, 4:2:0, 8-bit
[0-1] [libx264 @ 0x6cb2140] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=21 lookahead_threads=3 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=10 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
[0-1] Output #0, mp4, to 'videos-reporter/MC4xMzg3NDI1MTY2Mjg1MTk=/b8a7ee17d8ecfd199edbc5edc9691698/video.mp4':
[0-1]   Metadata:
[0-1]     encoder         : Lavf58.24.100
[0-1]     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1200x674, q=-1--1, 10 fps, 10240 tbn, 10 tbc
[0-1]     Metadata:
[0-1]       encoder         : Lavc58.42.100 libx264
[0-1]     Side data:
[0-1]       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[0-1] frame=   10 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=6 drop=0 speed=   0x    
frame=   58 fps= 47 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A dup=38 drop=0 speed=   0x    
frame=   82 fps= 46 q=25.0 size=       0kB time=00:00:01.40 bitrate=   0.3kbits/s dup=54 drop=0 speed=0.79x    
frame=  109 fps= 48 q=25.0 size=       0kB time=00:00:04.10 bitrate=   0.1kbits/s dup=72 drop=0 speed= 1.8x 


    


  • ffmpeg generating out of sync audio/video file

    2 mars 2013, par marcelorocks

    I am trying to convert a flv video to mp4 using a264, but the result video has a out of sync audio/video. Audio seems ok but video seems slow and therefore out of sync. I am a newbie on video conversion so any help is appreciated.

    Here is the command I am running :

    /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt/local/share/ffmpeg/libx264-lossless_slow.ffpreset -ab 44k -threads 0 -crf 23 complaint.mp4

    And the printout :

    Desktop  /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict experimental -fpre /opt/local/share/ffmpeg/libx264-lossless_slow.ffpreset -ab 44k -threads 0 -crf 23 complaint.mp4
    
ffmpeg version 0.7.8, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Jan 12 2012 21:12:26 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
    
  configuration: --prefix=/opt/local --enable-gpl --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-libopenjpeg --enable-libxvid --enable-libx264 --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/gcc-4.2 --arch=x86_64 --enable-yasm
    
  libavutil    50. 43. 0 / 50. 43. 0
    
  libavcodec   52.123. 0 / 52.123. 0
    
  libavformat  52.111. 0 / 52.111. 0
    
  libavdevice  52.  5. 0 / 52.  5. 0
    
  libavfilter   1. 80. 0 /  1. 80. 0
    
  libswscale    0. 14. 1 /  0. 14. 1
    
  libpostproc  51.  2. 0 / 51.  2. 0
    
[flv @ 0x7fe57a04ac00] Estimating duration from bitrate, this may be inaccurate
    
Input #0, flv, from 'complaint.flv':
    
  Metadata:
    
    duration        : 7
    
    creationdate    : Thu Jan 12 23:47:24
    
    description     : Recorded using VideoRecording example.
    
  Duration: 00:00:06.61, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: flv, yuv420p, 288x288, 1k tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: nellymoser, 11025 Hz, mono, s16
    
File 'complaint.mp4' already exists. Overwrite ? [y/N] y
    
[buffer @ 0x7fe579c32cc0] w:288 h:288 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
    
[libx264 @ 0x7fe57a044600] using cpu capabilities: none!
    
[libx264 @ 0x7fe57a044600] profile High, level 4.2
    
[libx264 @ 0x7fe57a044600] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x33 me=umh subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=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=1.41 aq=1:1.00
    
Output #0, mp4, to 'complaint.mp4':
    
  Metadata:
    
    duration        : 7
    
    creationdate    : Thu Jan 12 23:47:24
    
    description     : Recorded using VideoRecording example.
    
    encoder         : Lavf52.111.0
    
    Stream #0.0: Video: libx264, yuv420p, 288x288, q=0-69, 200 kb/s, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: aac, 11025 Hz, mono, s16, 44 kb/s
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
  Stream #0.1 -> #0.1
    
Press [q] to stop, [?] for help
    
frame= 6557 fps=106 q=-1.0 Lsize=     685kB time=00:00:03.62 bitrate=1549.1kbits/s dup=6367 drop=0    
    
video:615kB audio:17kB global headers:0kB muxing overhead 8.361360%
    
frame I:27    Avg QP:19.98  size:  8242
    
[libx264 @ 0x7fe57a044600] frame P:6530  Avg QP:30.71  size:    62
    
[libx264 @ 0x7fe57a044600] mb I  I16..4: 11.1% 79.3%  9.6%
    
[libx264 @ 0x7fe57a044600] mb P  I16..4:  0.1%  0.2%  0.0%  P16..4:  1.2%  0.2%  0.3%  0.0%  0.0%    skip:98.0%
    
[libx264 @ 0x7fe57a044600] 8x8 transform intra:77.8% inter:64.9%
    
[libx264 @ 0x7fe57a044600] coded y,uvDC,uvAC intra: 75.3% 81.3% 33.3% inter: 0.5% 0.7% 0.1%
    
[libx264 @ 0x7fe57a044600] i16 v,h,dc,p: 78%  9% 10%  3%
    
[libx264 @ 0x7fe57a044600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 11% 32%  3%  4%  5%  2%  5%  4%
    
[libx264 @ 0x7fe57a044600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 56%  7%  9%  3%  4%  7%  3%  7%  3%
    
[libx264 @ 0x7fe57a044600] i8c dc,h,v,p: 45% 15% 34%  6%
    
[libx264 @ 0x7fe57a044600] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7fe57a044600] ref P L0: 80.5%  9.5% 10.0%
    
[libx264 @ 0x7fe57a044600] kb/s:767.20

  • capturing x11grab display from ffmpeg giveing "segmentation fault1 q=0.0"

    26 juin 2019, par user2369563

    In Debian 9, I am trying to record screen using ffmpeg over x11grab. it’s working great but sometimes its give error as shown below.
    Any idea what causing this ?

    exec error: Error: Command failed: ffmpeg -y  -f x11grab -s 1920x1080 -framerate 30 -i :1.0+0,0 -vsync 1 -c:v libx264 -preset ultrafast -crf 0 -pix_fmt yuv444p output.mkv
    
ffmpeg version 3.2.14-1~deb9u1 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
    
  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --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-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
[x11grab @ 0x55f87adcffa0] Stream #0: not enough frames to estimate rate; consider increasing probesize
    
Input #0, x11grab, from ':1.0+0,0':
    
  Duration: N/A, start: 1561540173.584858, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1080, 30 fps, 1000k tbr, 1000k tbn, 1000k tbc
    
[libx264 @ 0x55f87adda860] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x55f87adda860] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit
    
[libx264 @ 0x55f87adda860] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
    
Output #0, matroska, to 'output.mkv':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv444p, 1920x1080, q=-1--1, 30 fps, 1k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.64.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
Segmentation fault1 q=0.0 size=   10942kB time=00:00:02.40 bitrate=37332.4kbits/s speed=0.923x

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