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Autres articles (57)

  • 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

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • (Dés)Activation de fonctionnalités (plugins)

    18 février 2011, par

    Pour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
    SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
    Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
    MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...)

Sur d’autres sites (7546)

  • FFmpeg from Python has Corrupted Output

    14 juillet 2019, par Mazyod

    In a python script, I have :

    os.system(ff_cmd)
    
# also tried Popen(ff_cmd, shell=True).wait()

    Then, I ran that same ff_cmd from terminal directly. Here are the results :

    # ff_cmd
    
ffmpeg -i "114006.mp3" -acodec pcm_s16le -ar 16000 -ac 1 "114-006-a4dec52a.wav"
    

    
# after running from python
    
% file 114-006-a4dec52a.wav
    
114-006-a4dec52a.wav: Audio file with ID3 version 2.4.0, contains:MPEG ADTS, layer III, v2,  40 kbps, 16 kHz, Monaural
    

    
# after running from terminal
    
% file 114-006-a4dec52a.wav
    
114-006-a4dec52a.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz

    Can anyone please explain why in the world would they result in different outputs ?

    Output from Python :

    ffmpeg version 4.1.4 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.4 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
[mp3 @ 0x7ffa34001800] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '/.../114006.mp3':
    
  Duration: 00:00:09.53, start: 0.000000, bitrate: 64 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, stereo, fltp, 64 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mp3 (mp3float) -> pcm_s16le (native))
    
Press [q] to stop, [?] for help
    
Output #0, wav, to '/.../114-006-a4dec52a.wav':
    
  Metadata:
    
    ISFT            : Lavf58.20.100
    
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
    
    Metadata:
    
      encoder         : Lavc58.35.100 pcm_s16le
    
size=     298kB time=00:00:09.53 bitrate= 256.1kbits/s speed= 166x    
    
video:0kB audio:298kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.025564%

    Output from terminal :

    ffmpeg version 4.1.4 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.4 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-12.0.1.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
    
  libavutil      56. 22.100 / 56. 22.100
    
  libavcodec     58. 35.100 / 58. 35.100
    
  libavformat    58. 20.100 / 58. 20.100
    
  libavdevice    58.  5.100 / 58.  5.100
    
  libavfilter     7. 40.101 /  7. 40.101
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  3.100 /  5.  3.100
    
  libswresample   3.  3.100 /  3.  3.100
    
  libpostproc    55.  3.100 / 55.  3.100
    
[mp3 @ 0x7f98ed005800] Estimating duration from bitrate, this may be inaccurate
    
Input #0, mp3, from '/.../114006.mp3':
    
  Duration: 00:00:09.53, start: 0.000000, bitrate: 64 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, stereo, fltp, 64 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mp3 (mp3float) -> pcm_s16le (native))
    
Press [q] to stop, [?] for help
    
Output #0, wav, to '/.../114-006-a4dec52a.wav':
    
  Metadata:
    
    ISFT            : Lavf58.20.100
    
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s
    
    Metadata:
    
      encoder         : Lavc58.35.100 pcm_s16le
    
size=     298kB time=00:00:09.53 bitrate= 256.1kbits/s speed= 469x    
    
video:0kB audio:298kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.025564%

  • How to make a video from images using ffmpeg ? [duplicate]

    11 juillet 2019, par No_0n3

    This question already has an answer here :

    I’m trying to make a video form list of images named like 1.jpg 2.jpg.. But I’m getting this error : ’deprecated pixed format used, make sure you did set range correctly’. How can i make a video form list of images ?

    ffmpeg -framerate 1 -i images/%d.jpg output.mp4
    ffmpeg version N-94251-gf83b46e218 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.1.1 (GCC) 20190621
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  libavutil      56. 30.100 / 56. 30.100
    
  libavcodec     58. 53.101 / 58. 53.101
    
  libavformat    58. 28.101 / 58. 28.101
    
  libavdevice    58.  7.100 / 58.  7.100
    
  libavfilter     7. 56.101 /  7. 56.101
    
  libswscale      5.  4.101 /  5.  4.101
    
  libswresample   3.  4.100 /  3.  4.100
    
  libpostproc    55.  4.100 / 55.  4.100
    
Input #0, image2, from 'images/%d.jpg':
    
  Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: mjpeg (Progressive), yuvj444p(pc, bt470bg/unknown/unknown), 612x409 [SAR 300:300 DAR 612:409], 1 fps, 1 tbr, 1 tbn, 1 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[libx264 @ 000001e44fbac740] using SAR=1/1
    
[libx264 @ 000001e44fbac740] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 000001e44fbac740] profile High 4:4:4 Predictive, level 2.2, 4:4:4, 8-bit
    
[libx264 @ 000001e44fbac740] 264 - core 157 r2970 5493be8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=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 'output.mp4':
    
  Metadata:
    
    encoder         : Lavf58.28.101
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj444p(pc), 612x409 [SAR 300:300 DAR 612:409], q=-1--1, 1 fps, 16384 tbn, 1 tbc
    
    Metadata:
    
      encoder         : Lavc58.53.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
[swscaler @ 000001e450a5ef00] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 000001e45061b340] deprecated pixel format used, make sure you did set range correctly
    
[swscaler @ 000001e44fbea400] deprecated pixel format used, make sure you did set range correctly
    
    Last message repeated 4 times
    
frame=   10 fps=0.0 q=-1.0 Lsize=     594kB time=00:00:07.00 bitrate= 695.5kbits/s speed=27.9x
    
video:593kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.148593%
    
[libx264 @ 000001e44fbac740] frame I:1     Avg QP:17.27  size: 51016
    
[libx264 @ 000001e44fbac740] frame P:9     Avg QP:17.36  size: 61778
    
[libx264 @ 000001e44fbac740] mb I  I16..4:  1.4% 96.0%  2.7%
    
[libx264 @ 000001e44fbac740] mb P  I16..4:  4.0% 83.5% 11.1%  P16..4:  0.7%  0.4%  0.2%  0.0%  0.0%    skip: 0.0%
    
[libx264 @ 000001e44fbac740] 8x8 transform intra:85.8% inter:98.3%
    
[libx264 @ 000001e44fbac740] coded y,u,v intra: 92.4% 60.1% 62.2% inter: 98.5% 93.8% 93.8%
    
[libx264 @ 000001e44fbac740] i16 v,h,dc,p:  5% 50% 10% 35%
    
[libx264 @ 000001e44fbac740] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 29% 18%  6%  6%  5%  9%  6% 10%
    
[libx264 @ 000001e44fbac740] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 24% 12%  6% 10%  9%  9%  6%  7%
    
[libx264 @ 000001e44fbac740] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 000001e44fbac740] ref P L0: 33.3% 15.4% 30.8% 20.4%
    
[libx264 @ 000001e44fbac740] kb/s:485.61

    output.mp4 occurred but it isn’t showing any image.

  • FFmpeg Time Lapse from Sources with Long Frozen Tail End

    5 juillet 2019, par Rich_F

    My source for inputs into FFmpeg is either one AVI file or a concat of many of them. Either way my resulting timelapse file has a long tail of frames that are a repeat of a single frame. It’s like a very long freeze frame is resulting on the end of my output file.

    I’m on an older Mac Pro so I can’t update my FFmpeg. I have a laptop that has a newer version and I get the same there as well. I’m not sure if it’s because my source files are AVI or not.

    ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
    
    built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags=-I/System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/ --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
    
    libavutil      56. 22.100 / 56. 22.100
    
    libavcodec     58. 35.100 / 58. 35.100
    
    libavformat    58. 20.100 / 58. 20.100
    
    libavdevice    58.  5.100 / 58.  5.100
    
    libavfilter     7. 40.101 /  7. 40.101
    
    libavresample   4.  0.  0 /  4.  0.  0
    
    libswscale      5.  3.100 /  5.  3.100
    
    libswresample   3.  3.100 /  3.  3.100
    
    libpostproc    55.  3.100 / 55.  3.100
    
[avi @ 0x7fa82080c800] sample size (1) != block align (2)
    
Guessed Channel Layout for Input Stream #0.1 : mono
    
Input #0, avi, from 'concat:16460001.AVI|16460002.AVI|16460003.AVI|16460004.AVI|16460005.AVI|16460006.AVI|16460007.AVI|16460008.AVI|16460009.AVI|16460010.AVI|16460011.AVI|16460012.AVI|16460013.AVI|16460014.AVI|16460015.AVI|16460016.AVI|16460017.AVI|16460018.AVI|16460019.AVI|16460020.AVI|16460021.AVI':
    
    Duration: 00:10:02.00, start: 0.000000, bitrate: 365923 kb/s
    
        Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, 30 fps, 30 tbr, 30 tbn, 30 tbc
    
        Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 32000 Hz, mono, s16, 512 kb/s
    
Stream mapping:
    
    Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
    Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7fa82082cc00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64
    
[libx264 @ 0x7fa82082cc00] profile High, level 3.1
    
[libx264 @ 0x7fa82082cc00] 264 - core 155 r2917 0a84d98 - 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=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 keyint_min=16 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         : Lavf58.20.100
    
        Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc, progressive), 1280x720, q=-1--1, 16 fps, 16384 tbn, 16 tbc
    
        Metadata:
    
            encoder         : Lavc58.35.100 libx264
    
        Side data:
    
            cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
        Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, mono, fltp, 69 kb/s
    
        Metadata:
    
            encoder         : Lavc58.35.100 aac
    
frame= 1962 fps=1.2 q=-1.0 Lsize=  136725kB time=03:24:07.00 bitrate=  91.5kbits/s dup=0 drop=365448 speed=7.41x
    
video:31548kB audio:103624kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.149437%
    
[libx264 @ 0x7fa82082cc00] frame I:10    Avg QP:18.74  size: 62176
    
[libx264 @ 0x7fa82082cc00] frame P:514   Avg QP:21.24  size: 30528
    
[libx264 @ 0x7fa82082cc00] frame B:1438  Avg QP:22.74  size: 11121
    
[libx264 @ 0x7fa82082cc00] consecutive B-frames:  1.4%  2.0%  2.0% 94.6%
    
[libx264 @ 0x7fa82082cc00] mb I  I16..4:  2.1% 97.2%  0.7%
    
[libx264 @ 0x7fa82082cc00] mb P  I16..4:  2.0% 33.3%  0.1%  P16..4: 37.7% 12.0% 10.4%  0.0%  0.0%    skip: 4.5%
    
[libx264 @ 0x7fa82082cc00] mb B  I16..4:  0.7% 11.5%  0.0%  B16..8: 29.1%  4.8%  1.3%  direct:12.0%  skip:40.6%  L0:47.5% L1:42.9% BI: 9.6%
    
[libx264 @ 0x7fa82082cc00] 8x8 transform intra:94.3% inter:83.0%
    
[libx264 @ 0x7fa82082cc00] coded y,uvDC,uvAC intra: 73.4% 66.7% 8.5% inter: 25.9% 46.8% 2.2%
    
[libx264 @ 0x7fa82082cc00] i16 v,h,dc,p: 17% 33% 26% 24%
    
[libx264 @ 0x7fa82082cc00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 23% 51%  1%  2%  1%  4%  1%  2%
    
[libx264 @ 0x7fa82082cc00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 21% 19%  5%  8%  7% 13%  5%  5%
    
[libx264 @ 0x7fa82082cc00] i8c dc,h,v,p: 46% 29% 23%  2%
    
[libx264 @ 0x7fa82082cc00] Weighted P-Frames: Y:47.5% UV:19.3%
    
[libx264 @ 0x7fa82082cc00] ref P L0: 45.0% 13.8% 20.6% 15.7%  5.0%
    
[libx264 @ 0x7fa82082cc00] ref B L0: 61.1% 30.4%  8.5%
    
[libx264 @ 0x7fa82082cc00] ref B L1: 85.8% 14.2%
    
[libx264 @ 0x7fa82082cc00] kb/s:2107.54
    
[aac @ 0x7fa82081ea00] Qavg: 130.084

    I’ve read this thread and tried to follow it :

    Create time lapse video from other video

    Here are some trials I’ve attempted before, all with the same output :

    # ffmpeg -y -i $mov -vf framestep=10,setpts=N/FRAME_RATE/TB,fps=2 -r 30 $out
    
# ffmpeg -y -i $mov -vf framestep=10,setpts=.01*PTS -r 30 $out
    
# ffmpeg -y -i $mov -vf framestep=10,setpts=.1*PTS -r 30 $out
    
# ffmpeg -y -i "concat:16460001.AVI|16460002.AVI|16460003.AVI|16460004.AVI|16460005.AVI|16460006.AVI|16460007.AVI|16460008.AVI|16460009.AVI|16460010.AVI|16460011.AVI|16460012.AVI|16460013.AVI|16460014.AVI|16460015.AVI|16460016.AVI|16460017.AVI|16460018.AVI|16460019.AVI|16460020.AVI|16460021.AVI" -vf framestep=10,setpts=.05*PTS -r 30 $out
    
ffmpeg -y -i "concat:16460001.AVI|16460002.AVI|16460003.AVI|16460004.AVI|16460005.AVI|16460006.AVI|16460007.AVI|16460008.AVI|16460009.AVI|16460010.AVI|16460011.AVI|16460012.AVI|16460013.AVI|16460014.AVI|16460015.AVI|16460016.AVI|16460017.AVI|16460018.AVI|16460019.AVI|16460020.AVI|16460021.AVI" -r 16 -filter:v "setpts=0.01*PTS" out.mp4

    Am I overlooking something ? I’m trying to speed up the inputs into a single file to quickly review incoming security footage. How can I do this without the super long useless tail at the end ?

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