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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • Mise à disposition des fichiers

    14 avril 2011, par

    Par défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
    Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
    Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (7769)

  • FFmpeg stdout emits more frames than it should

    29 décembre 2022, par distante

    I am running this command to get two images per second from an rtsp stream :

    


    const ffmpeg = spawn(this.ffmpeg, [
      // Set the frame rate of the input video to 2 frames per second
      '-r',
      '2',
      // Specify that the RTSP stream should use TCP as the transport protocol
      '-rtsp_transport',
      'tcp',
      // Set the input source to the RTSP stream specified by the `rtspUrl` variable
      '-i',
      rtspUrl,
      // Set the video filter to only output two frames per second (final video)
      '-vf',
      'fps=2',
      // Set the output format to "image2pipe," which specifies that the output should be written to stdout as a series of images in a pipe
      '-f',
      'image2pipe',
      // Overwrite any existing output file without prompting for confirmation
      '-y',
      // Set the output destination to stdout
      '-',
    ]);



    


    I am subscribing to the stdout and saving each emit into a file (just for testing, I need to process the data later)

    


        let i = 0;
    from(ffmpeg.stdout)
      .pipe(
        concatMap((data) => {
          i++
          return writeFile(`file_${i}`, data).then(() => i);
        }),
      )
      .subscribe((i) => {
        this.imageLogger.log(`file_${i} saved`);
      });


    


    The thing is, I am getting a lot more than 2 images per second :

    


    i       | [Nest] 431  - 12/28/2022, 1:16:09 PM     LOG [Image Logger] stderr: ffmpeg version 5.0.1-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2022 the FFmpeg developers
api       |   built with gcc 8 (Debian 8.3.0-6)
api       |   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --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-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
api       |   libavutil      57. 17.100 / 57. 17.100
api       |   libavcodec     59. 18.100 / 59. 18.100
api       |   libavformat    59. 16.100 / 59. 16.100
api       |   libavdevice    59.  4.100 / 59.  4.100
api       |   libavfilter     8. 24.100 /  8. 24.100
api       |   libswscale      6.  4.100 /  6.  4.100
api       |   libswresample   4.  3.100 /  4.  3.100
api       |   libpostproc    56.  3.100 / 56.  3.100
api       |   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --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-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
api       |   libavutil      57. 17.100 / 57. 17.100
api       |   libavcodec     59. 18.100 / 59. 18.100
api       |   libavformat    59. 16.100 / 59. 16.100
api       |   libavdevice    59.  4.100 / 59.  4.100
api       |   libavfilter     8. 24.100 /  8. 24.100
api       |   libswscale      6.  4.100 /  6.  4.100
api       |   libswresample   4.  3.100 /  4.  3.100
api       |   libpostproc    56.  3.100 / 56.  3.100
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr: Guessed Channel Layout for Input Stream #0.1 : mono
api       | Input #0, rtsp, from 'rtsp://user:password@192.68.45.54:554/stream2':
api       |   Metadata:
api       |     title           : Session streamed by "TP-LINK RTSP Server"
api       |     comment         : stream2
api       |   Duration: N/A, start: 0.000000, bitrate: N/A
api       |   Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 640x360, 15 fps, 28.58 tbr, 90k tbn
api       |   Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
api       |
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr: Stream mapping:
api       |   Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
api       | Press [q] to stop, [?] for help
api       |
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr: Output #0, image2pipe, to 'pipe:':
api       |   Metadata:
api       |     title           : Session streamed by "TP-LINK RTSP Server"
api       |     comment         : stream2
api       |     encoder         : Lavf59.16.100
api       |   Stream #0:0: Video: mjpeg, yuvj420p(pc, bt709, progressive), 640x360, q=2-31, 200 kb/s, 2 fps, 2 tbn
api       |
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr:     Metadata:
api       |       encoder         : Lavc59.18.100 mjpeg
api       |     Side data:
api       |       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr: frame=    1 fps=0.0 q=5.0 size=      23kB time=00:00:00.50 bitrate= 383.9kbits/s speed=59.4x
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_1.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_2.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_3.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_4.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_5.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_6.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_7.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_8.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_9.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_10.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_11.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_12.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_13.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_14.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_15.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_16.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_17.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_18.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_19.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_20.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_21.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_22.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_23.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_24.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_25.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_26.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] stderr: frame=   27 fps=0.0 q=16.0 size=     559kB time=00:00:13.50 bitrate= 339.3kbits/s speed=25.3x
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_27.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_28.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_29.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_30.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_31.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:12 PM     LOG [Image Logger] file_32.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_33.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] stderr: frame=   34 fps= 33 q=16.6 size=     632kB time=00:00:17.00 bitrate= 304.6kbits/s speed=16.3x
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_34.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_35.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_36.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_37.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_38.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_39.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_40.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_41.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] stderr: frame=   41 fps= 26 q=16.5 size=     705kB time=00:00:20.50 bitrate= 281.7kbits/s speed=13.2x
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_42.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_43.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_44.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_45.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:13 PM     LOG [Image Logger] file_46.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_47.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_48.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] stderr: frame=   48 fps= 23 q=16.4 size=     779kB time=00:00:24.00 bitrate= 265.9kbits/s speed=11.6x
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_49.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_50.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_51.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_52.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_53.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_54.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_55.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] stderr: frame=   56 fps= 22 q=16.1 size=     865kB time=00:00:28.00 bitrate= 253.0kbits/s speed=10.9x
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_56.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_57.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_58.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_59.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:14 PM     LOG [Image Logger] file_60.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_61.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_62.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_63.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] stderr: frame=   63 fps= 20 q=15.5 size=     939kB time=00:00:31.50 bitrate= 244.3kbits/s speed=10.2x
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_64.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_65.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_66.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_67.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_68.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_69.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_70.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] stderr: frame=   70 fps= 19 q=15.4 size=    1017kB time=00:00:35.00 bitrate= 238.0kbits/s speed= 9.7x
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_71.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_72.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_73.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_74.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:15 PM     LOG [Image Logger] file_75.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_76.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_77.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] stderr: frame=   78 fps= 19 q=15.1 size=    1106kB time=00:00:39.00 bitrate= 232.4kbits/s speed=9.48x
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_78.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_79.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_80.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_81.jpg saved
api       | [Nest] 431  - 12/28/2022, 1:16:16 PM     LOG [Image Logger] file_82.jpg saved


    


    Am I missing some part ? why I do not only get 2 stdout events pro second ?

    


    Edit :

    


    ffmpeg version 5.0.1-static
node : 18.12.1

    


    Edit 2 :

    


    When I run this command on the terminal :

    


    ffmpeg -r 2 -rtsp_transport tcp -i "rtsp://user:password@192.68.45.54:554/stream2" -vf fps=2 -timecode 00:00:00:00 test.mp4


    


    The generated video has a frame rate of 2 but it looks like it is in slow motion. Since the source video has also a timer, I see how it takes something like 12 "frames" to go from one second to another.

    


    This is the output :

    


    fmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
  built with Apple clang version 14.0.0 (clang-1400.0.29.202)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/5.1.2_1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
Input #0, rtsp, from 'rtsp://user:password@192.68.45.54:554/stream2':
  Metadata:
    title           : Session streamed by "TP-LINK RTSP Server"
    comment         : stream2
  Duration: N/A, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 640x360, 15 fps, 28.58 tbr, 90k tbn
  Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
File 'test.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (pcm_alaw (native) -> aac (native))
Press [q] to stop, [?] for help
[aac @ 0x7fa79fb061c0] Too many bits 8832.000000 > 6144 per frame requested, clamping to max
[libx264 @ 0x7fa79fb04e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fa79fb04e00] profile High, level 2.2, 4:2:0, 8-bit
[libx264 @ 0x7fa79fb04e00] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - 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=11 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=2 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
[mp4 @ 0x7fa78f104780] Using non-standard frame rate 2/1
    Last message repeated 1 times
Output #0, mp4, to 'test.mp4':
  Metadata:
    title           : Session streamed by "TP-LINK RTSP Server"
    comment         : stream2
    timecode        : 00:00:00:00
    encoder         : Lavf59.27.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuvj420p(pc, bt709, progressive), 640x360, q=2-31, 2 fps, 16384 tbn
    Metadata:
      encoder         : Lavc59.37.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 48 kb/s
    Metadata:
      encoder         : Lavc59.37.100 aac
frame=  186 fps= 28 q=20.0 size=     256kB time=00:01:04.00 bitrate=  32.8kbits/s speed=9.58x

[q] command received. Exiting.

frame=  190 fps= 27 q=-1.0 Lsize=     749kB time=00:01:33.50 bitrate=  65.6kbits/s speed=13.2x
video:708kB audio:35kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.836704%
[libx264 @ 0x7fa79fb04e00] frame I:1     Avg QP:10.13  size: 45352
[libx264 @ 0x7fa79fb04e00] frame P:74    Avg QP:12.27  size:  7161
[libx264 @ 0x7fa79fb04e00] frame B:115   Avg QP:22.28  size:  1294
[libx264 @ 0x7fa79fb04e00] consecutive B-frames: 14.7%  9.5% 12.6% 63.2%
[libx264 @ 0x7fa79fb04e00] mb I  I16..4: 15.0% 14.0% 71.0%
[libx264 @ 0x7fa79fb04e00] mb P  I16..4:  0.6%  1.5%  2.4%  P16..4: 20.4%  4.9%  5.9%  0.0%  0.0%    skip:64.3%
[libx264 @ 0x7fa79fb04e00] mb B  I16..4:  0.0%  0.1%  0.3%  B16..8: 15.9%  2.4%  1.5%  direct: 0.9%  skip:78.9%  L0:45.5% L1:48.6% BI: 5.9%
[libx264 @ 0x7fa79fb04e00] 8x8 transform intra:27.4% inter:64.7%
[libx264 @ 0x7fa79fb04e00] coded y,uvDC,uvAC intra: 81.7% 60.2% 46.5% inter: 9.4% 4.2% 1.5%
[libx264 @ 0x7fa79fb04e00] i16 v,h,dc,p: 44% 10% 19% 27%
[libx264 @ 0x7fa79fb04e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 52% 14% 13%  3%  2%  3%  3%  5%  4%
[libx264 @ 0x7fa79fb04e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 18% 13%  6%  5%  6%  5%  6%  7%
[libx264 @ 0x7fa79fb04e00] i8c dc,h,v,p: 45% 18% 27%  9%
[libx264 @ 0x7fa79fb04e00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fa79fb04e00] ref P L0: 78.9%  7.6% 11.4%  2.1%
[libx264 @ 0x7fa79fb04e00] ref B L0: 90.8%  8.0%  1.2%
[libx264 @ 0x7fa79fb04e00] ref B L1: 97.0%  3.0%
[libx264 @ 0x7fa79fb04e00] kb/s:60.98
[aac @ 0x7fa79fb061c0] Qavg: 64944.246


    


  • Why does ffmpeg keep using more and more RAM and crash ?

    29 décembre 2022, par József Márton Kakas

    I am using the following command with ffmpeg to encode a video file using the libsvtav1 codec : ffmpeg -i hevc.mkv -map 0:v:0 -c:v:0 libsvtav1 -preset 8 -crf 22 -format matroska av1.mkv.

    


    However, ffmpeg is using up all of my available RAM and crashing. I have also tried using the libx264 codec, but the same issue occurs, although it happens more slowly. I have already allocated 12 GB of RAM to ffmpeg, but it still seems to be insufficient. How can I prevent ffmpeg from using all of my available RAM and crashing when using either the libsvtav1 or libx264 codecs ?

    


    I have tried it on another VM, but the same issue occurs. Here is the full output of the program.

    


    ffmpeg -i akira.mkv -map 0:v:0 -c:v:0 libsvtav1 -preset 8 -crf 22 -c:a copy -c:s copy -format matroska av1.mkv
ffmpeg version n5.1.2-7-ga6e26053c2-20221106 Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 12.2.0 (crosstool-NG 1.25.0.90_cf9beb1)
  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-ffbuild-linux-gnu- --arch=x86_64 --target-os=linux --enable-gpl --enable-version3 --disable-debug --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --enable-libpulse --enable-libvmaf --enable-libxcb --enable-xlib --enable-amf --enable-libaom --enable-libaribb24 --enable-avisynth --disable-chromaprint --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-libass --enable-libbluray --enable-libjxl --enable-libmp3lame --enable-libopus --enable-mbedtls --enable-librist --enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --disable-openal --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-librav1e --enable-librubberband --disable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --enable-libdrm --enable-vaapi --enable-libvidstab --enable-vulkan --enable-libshaderc --enable-libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags=-pie --extra-libs='-ldl -lgomp' --extra-version=20221106
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
Input #0, matroska,webm, from 'akira.mkv':
  Metadata:
    title           : Akira 4K
    encoder         : libebml v1.3.10 + libmatroska v1.5.2
    creation_time   : 2020-05-04T19:57:18.000000Z
  Duration: 02:04:46.50, start: 0.000000, bitrate: 10945 kb/s
  Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2074 [SAR 1:1 DAR 1920:1037], 23.98 fps, 23.98 tbr, 1k tbn (default)
    Metadata:
      BPS-eng         : 9531297
      DURATION-eng    : 02:04:46.479000000
      NUMBER_OF_FRAMES-eng: 179496
      NUMBER_OF_BYTES-eng: 8919482644
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(eng): Subtitle: subrip
    Metadata:
      BPS-eng         : 46
      DURATION-eng    : 01:59:00.755000000
      NUMBER_OF_FRAMES-eng: 1277
      NUMBER_OF_BYTES-eng: 41675
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(ita): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
    Metadata:
      title           : Nuovo doppiaggio
      BPS-eng         : 448000
      DURATION-eng    : 02:04:28.480000000
      NUMBER_OF_FRAMES-eng: 233390
      NUMBER_OF_BYTES-eng: 418234880
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(ita): Audio: ac3, 48000 Hz, stereo, fltp, 448 kb/s
    Metadata:
      title           : Doppiaggio Storico
      BPS-eng         : 448000
      DURATION-eng    : 02:04:28.480000000
      NUMBER_OF_FRAMES-eng: 233390
      NUMBER_OF_BYTES-eng: 418234880
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:4(ita): Subtitle: dvd_subtitle, 1920x1080
    Metadata:
      title           : Italiano
      BPS-eng         : 8426
      DURATION-eng    : 02:00:14.955000000
      NUMBER_OF_FRAMES-eng: 1201
      NUMBER_OF_BYTES-eng: 7599491
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:5(ita): Subtitle: subrip (default)
    Metadata:
      title           : Forced
      BPS-eng         : 0
      DURATION-eng    : 01:46:31.753000000
      NUMBER_OF_FRAMES-eng: 14
      NUMBER_OF_BYTES-eng: 462
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:6(jpn): Audio: eac3, 48000 Hz, 5.1(side), fltp, 256 kb/s
    Metadata:
      BPS-eng         : 256000
      DURATION-eng    : 02:04:46.496000000
      NUMBER_OF_FRAMES-eng: 233953
      NUMBER_OF_BYTES-eng: 239567872
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:7(eng): Audio: eac3, 48000 Hz, 5.1(side), fltp, 256 kb/s
    Metadata:
      BPS-eng         : 256000
      DURATION-eng    : 02:04:46.496000000
      NUMBER_OF_FRAMES-eng: 233953
      NUMBER_OF_BYTES-eng: 239567872
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:8: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 1067x600, 90k tbr, 90k tbn (attached pic)
    Metadata:
      filename        : cover_land.jpg
      mimetype        : image/jpeg
  Stream #0:9: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 120x176, 90k tbr, 90k tbn (attached pic)
    Metadata:
      filename        : small_cover.jpg
      mimetype        : image/jpeg
  Stream #0:10: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 213x120, 90k tbr, 90k tbn (attached pic)
    Metadata:
      filename        : small_cover_land.jpg
      mimetype        : image/jpeg
  Stream #0:11: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 600x882, 90k tbr, 90k tbn (attached pic)
    Metadata:
      filename        : cover.jpg
      mimetype        : image/jpeg
  Stream #0:12: Attachment: otf
    Metadata:
      filename        : StoneSansStd-Semibold.otf
      mimetype        : application/vnd.ms-opentype
  Stream #0:13: Attachment: otf
    Metadata:
      filename        : StoneSansStd-SemiboldItalic.otf
      mimetype        : application/vnd.ms-opentype
  Stream #0:14: Attachment: otf
    Metadata:
      filename        : ATPacella-Black.otf
      mimetype        : application/vnd.ms-opentype
  Stream #0:15: Attachment: ttf
    Metadata:
      filename        : ITC Franklin Gothic LT Medium Condensed.ttf
      mimetype        : application/x-truetype-font
File 'av1.mkv' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> av1 (libsvtav1))
Press [q] to stop, [?] for help
Svt[info]: -------------------------------------------
Svt[info]: SVT [version]:       SVT-AV1 Encoder Lib v1.3.0
Svt[info]: SVT [build]  :       GCC 12.2.0       64 bit
Svt[info]: LIB Build date: Nov  6 2022 00:41:54
Svt[info]: -------------------------------------------
Svt[info]: Number of logical cores available: 16
Svt[info]: Number of PPCS 71
Svt[info]: [asm level on system : up to avx]
Svt[info]: [asm level selected : up to avx]
Svt[info]: -------------------------------------------
Svt[info]: SVT [config]: main profile   tier (auto)     level (auto)
Svt[info]: SVT [config]: width / height / fps numerator / fps denominator               : 3840 / 2080 / 24000 / 1001
Svt[info]: SVT [config]: bit-depth / color format                      : 10 / YUV420
Svt[info]: SVT [config]: preset / tune / pred struct                   : 8 / PSNR / random access
Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type     : 161 / 16 / key frame
Svt[info]: SVT [config]: BRC mode / rate factor                        : CRF / 22 
Svt[info]: -------------------------------------------
Output #0, matroska, to 'av1.mkv':
  Metadata:
    title           : Akira 4K
    encoder         : Lavf59.27.100
  Stream #0:0: Video: av1 (AV01 / 0x31305641), yuv420p10le(tv, bt2020nc/bt2020/smpte2084, progressive), 3840x2074 [SAR 1:1 DAR 1920:1037], q=2-31, 23.98 fps, 1k tbn (default)
    Metadata:
      BPS-eng         : 9531297
      DURATION-eng    : 02:04:46.479000000
      NUMBER_OF_FRAMES-eng: 179496
      NUMBER_OF_BYTES-eng: 8919482644
      _STATISTICS_WRITING_APP-eng: mkvmerge v43.0.0 ('The Quartermaster') 32-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2020-05-04 19:57:18
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      encoder         : Lavc59.37.100 libsvtav1
frame=    1 fps=0.0 q=0.0 size=       1kB time=00:00:00.00 bitrate=N/A sframe=    2 fps=1.3 q=0.0 size=       1kB time=00:00:00.00 bitrate=N/A sframe=   51 fps= 25 q=0.0 size=       1kB time=00:00:00.00 bitrate=N/A sframe=   73 fps= 16 q=16.0 size=       1kB time=00:00:00.00 bitrate=7480frame=   76 fps= 14 q=16.0 size=       1kB time=00:00:00.00 bitrate=7480frame=   81 fps= 14 q=16.0 size=       1kB time=00:00:00.00 bitrate=7480frame=   87 fps= 14 q=21.0 size=       1kB time=00:00:00.16 bitrate=  44frame=   95 fps= 14 q=21.0 size=       1kB time=00:00:00.50 bitrate=  14frame=  100 fps= 13 q=16.0 size=       1kB time=00:00:00.66 bitrate=  11frame=  110 fps= 13 q=23.0 size=       1kB time=00:00:00.96 bitrate=   7frame=  114 fps= 13 q=23.0 size=       1kB time=00:00:01.12 bitrate=   6frame=  122 fps= 13 q=23.0 size=       1kB time=00:00:01.46 bitrate=   5frame=  126 fps= 12 q=23.0 size=       1kB time=00:00:01.62 bitrate=   4frame=  133 fps= 12 q=22.0 size=       1kB time=00:00:01.92 bitrate=   3frame=  139 fps= 12 q=21.0 size=       1kB time=00:00:02.17 bitrate=   3frame=  141 fps= 11 q=22.0 size=       1kB time=00:00:02.25 bitrate=   3frame=  144 fps= 11 q=23.0 size=       1kB time=00:00:02.37 bitrate=   3frame=  151 fps= 11 q=13.0 size=       1kB time=00:00:02.67 bitrate=   2frame=  159 fps= 11 q=18.0 size=       1kB time=00:00:03.00 bitrate=   2frame=  164 fps= 11 q=22.0 size=       1kB time=00:00:03.21 bitrate=   2frame=  174 fps= 11 q=22.0 size=       1kB time=00:00:03.63 bitrate=   2frame=  179 fps= 11 q=20.0 size=       1kB time=00:00:03.83 bitrate=   1frame=  187 fps= 11 q=20.0 size=       1kB time=00:00:04.17 bitrate=   1frame=  189 fps= 10 q=21.0 size=       1kB time=00:00:04.25 bitrate=   1frame=  192 fps= 10 q=22.0 size=       1kB time=00:00:04.38 bitrate=   1frame=  195 fps=8.0 q=20.0 size=       1kB time=00:00:04.50 bitrate=   1frame=  201 fps=8.0 q=11.0 size=       1kB time=00:00:04.67 bitrate=   1Killeds/s speed=0.187x


    


  • HOW TO APPLY TRANSITION EFFECTS IN FFMPEG ? [closed]

    8 janvier 2023, par SMART

    I have 7 videos with audio, i tried to apply transition effects on these files, written code in python for this , i got error .

    


    python code :
import subprocess as sp

    


        def runffmpeg(cmd):
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            ffmpeg_output, _ = pipe.communicate()
    
            print(ffmpeg_output)
            return (ffmpeg_output)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    
    def get_duration(fn):
        cmd = (
            f"ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
    
        cmd1 = (
            f"ffprobe -v error -of flat=s_ -select_streams 1 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 {fn}")
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            viddur, _ = pipe.communicate()
    
            print(viddur)
    
            pipe = sp.Popen(cmd1, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            auddur, _ = pipe.communicate()
    
            try:
                auddur = float(auddur.strip())
            except:
                auddur = 0
    
            print(auddur)
    
            # if (len(auddur) == 0):
            #     auddur = 0
    
            return float(viddur.strip()), (auddur)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
    
    
    def trans(clips, effects, out="trans.mp4"):
        filtc = " [v1][v2]xfade=wipedown:duration=1:offset=4[x1];"
        i = 0
        fcv = ""
        fca = ""
        d1 = 0
        af = ""
        dur = []
        aud = []
        inp = ""
        j = 0
        print(len(clips))
    
        for x in clips:
            print(x[0])
            inp = (inp + " -i " + x)
    
            print(effects[0])
            print(x)
    
            v, a = get_duration(fn=x)
            dur.append(v)
    
        k = 0
        for x in dur:
    
            if (k == 0):
                fca = (fca + f"[{k}:a]adelay=0|0 [a{k+1}];")
            else:
                fca = (fca + f"[{k}:a]adelay={d1}|{d1} [a{k+1}];")
            aud.append(f"[a{k+1}]")
            k = (k+1)
            d1 = (d1+((x*1000)+3.5))
    
        d1 = 0
        for x in efects:
            for v in range(0, j+1, +1):
                d1 = (d1 + dur[v])
                d1 = (d1-((v+1)*3.5))
            # [0:a]adelay=0|0 [a1];
            if (i > 1):
    
                try:
                    fcv = (
                        fcv+f"[x{(i)}][{(i)}:v]xfade={x}:duration=3:offset={d1} [x{(i+1)}];")
                except:
                    pass
            else:
                print("j = %d" % j)
                fcv = (
                    fcv+f"[{(i)}:v][{(i+1)}:v]xfade={x}:duration=3:offset={d1} [x{(i+1)}];")
    
            j = (j+1)
            i = (i+1)
    
        for a in aud:
            af = (af+a)
        af = (af+f"amix=inputs={len(aud)} [faud]")
    
        inp = (inp+" -filter_complex \"")
        cmd = (
            f"ffmpeg {inp} {fcv} {fca} {af} \" -pix_fmt yuv420p -map \"[x{i}]\" -map \"[faud]\" -y {out}")
    
        print(cmd)
    
        try:
            pipe = sp.Popen(cmd, stdout=sp.PIPE, stderr=sp.STDOUT,
                            universal_newlines=True)
    
            ffmpeg_output, _ = pipe.communicate()
    
            print(ffmpeg_output)
    
        except sp.CalledProcessError as err:
            print("FFmpeg stdout output on error:\n" + err.output)
            
            


    


    these functions creates ffmpeg code like :
ffmpeg -i out1.mp4 -i out2.mp4 -i out3.mp4 -i out4.mp4 -i out5.mp4 -i out6.mp4 -i out7.mp4 -filter_complex " [0:v][1:v]xfade=wipedown:duration=3:offset=6.006009000000001 [x1] ;[1:v][2:v]xfade=dissolve:duration=3:offset=14.030023 [x2] ;[x2][2:v]xfade=pixelize:duration=3:offset=20.572042000000003 [x3] ;[x3][3:v]xfade=vuslice:duration=3:offset=21.621068000000008 [x4] ;[x4][4:v]xfade=radial:duration=3:offset=14.188099000000015 [x5] ;[x5][5:v]xfade=vertopen:duration=3:offset=-5.737862999999978 [x6] ; [0:a]adelay=0|0 [a1] ;[1:a]adelay=9509.509|9509.509 [a2] ;[2:a]adelay=18531.014000000003|18531.014000000003 [a3] ;[3:a]adelay=27552.519000000004|27552.519000000004 [a4] ;[4:a]adelay=36063.026000000005|36063.026000000005 [a5] ;[5:a]adelay=45084.531|45084.531 [a6] ;[6:a]adelay=53595.038|53595.038 [a7] ; [a1][a2][a3][a4][a5][a6][a7]amix=inputs=7 [faud] " -pix_fmt yuv420p -map "[x6]" -map "[faud]" -y trans.mp4

    


    this ffmpeg command generates error :

    


        ffmpeg version 2022-12-25-git-eeb280f351-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers
      built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
      configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
      libavutil      57. 43.100 / 57. 43.100
      libavcodec     59. 55.103 / 59. 55.103
      libavformat    59. 34.102 / 59. 34.102
      libavdevice    59.  8.101 / 59.  8.101
      libavfilter     8. 53.100 /  8. 53.100
      libswscale      6.  8.112 /  6.  8.112
      libswresample   4.  9.100 /  4.  9.100
      libpostproc    56.  7.100 / 56.  7.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out1.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.51, start: 0.000000, bitrate: 1358 kb/s
      Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1303 kb/s, 26.94 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 51 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'out2.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1060 kb/s
      Stream #1:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1007 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #1:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 47 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'out3.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1228 kb/s
      Stream #2:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1178 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #2:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 46 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'out4.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:08.51, start: 0.000000, bitrate: 987 kb/s
      Stream #3:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 938 kb/s, 26.57 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #3:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 43 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'out5.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 1221 kb/s
      Stream #4:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1170 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #4:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 47 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #5, mov,mp4,m4a,3gp,3g2,mj2, from 'out6.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:08.51, start: 0.000000, bitrate: 1073 kb/s
      Stream #5:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 1027 kb/s, 26.57 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #5:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 41 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Input #6, mov,mp4,m4a,3gp,3g2,mj2, from 'out7.mp4':
      Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf59.34.102
      Duration: 00:00:09.02, start: 0.000000, bitrate: 757 kb/s
      Stream #6:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt470bg/unknown/unknown, progressive), 1080x1920, 705 kb/s, 26.73 fps, 25 tbr, 1000k tbn (default)
        Metadata:
          handler_name    : VideoHandler
          vendor_id       : [0][0][0][0]
          encoder         : Lavc59.55.103 libx264
      Stream #6:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 46 kb/s (default)
        Metadata:
          handler_name    : SoundHandler
          vendor_id       : [0][0][0][0]
    Filter xfade:default has an unconnected output


    


    Filter xfade:default has an unconnected output , what does it mean ?

    


    in adelay area , getting -ve nos , what to do ?

    


    #useage :

    


    vc = ["C1.mp4", "C2.mp4", "C3.mp4", "C4.mp4", "C5.mp4", "C6.mp4", "C7.mp4"]

    


        i = 1
    gc = []
    for x in vc:
        gc.append(f"out{i}.mp4")
        i = (i+1)
    
    print(gc)
    
    trans(clips=gc, effects=efects)


    


    system details :
windows 10 64 bits
python 3.9 64 bits

    


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