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• Cutting out a part of a video in ffmpeg creates a corrupted output file

  30 octobre 2020, par lagmoellertim

  I currently have a problem with ffmpeg. I'm trying to cut out a part of a video (e.g. from 00:10:00 to 00:10:30).

  


  I use this command ffmpeg -ss 600 -to 630 -i not_working.mp4  not_working_part.mp4.

  


  I tried reencoding the video, but it is still corrupted (only first few frames working, video is multiple hours long but jumps to end if you try to skip).

  


  I use the -ss and the -to parameter before the -i parameter because it is much faster I want to cut out a part that is e.g. right at the end of the video. Moving the -i parameter infront of the other args solves the problem, but the performance is really bad for cutouts late in the video. For many other of my videos, both methods work without a problem.

  


  Here is some metadata about the video from ffmpeg :

  


  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'media\not_working.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2020-09-22T06:20:53.000000Z
  Duration: 03:03:40.04, start: 0.000000, bitrate: 537 kb/s
    Chapter #0:0: start 0.000000, end 204.120000
    Metadata:
      title           : Recording Started
    Chapter #0:1: start 204.120000, end 2045.200000
    Metadata:
      title           : Sharing Started
    Chapter #0:2: start 2045.200000, end 2056.880000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:3: start 2056.880000, end 4018.280000
    Metadata:
      title           : Sharing Started
    Chapter #0:4: start 4018.280000, end 4024.760000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:5: start 4024.760000, end 4096.000000
    Metadata:
      title           : Sharing Started
    Chapter #0:6: start 4096.000000, end 4101.800000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:7: start 4101.800000, end 4481.920000
    Metadata:
      title           : Sharing Started
    Chapter #0:8: start 4481.920000, end 4624.480000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:9: start 4624.480000, end 6902.000000
    Metadata:
      title           : Sharing Started
    Chapter #0:10: start 6902.000000, end 6906.760000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:11: start 6906.760000, end 6922.880000
    Metadata:
      title           : Sharing Started
    Chapter #0:12: start 6922.880000, end 6936.800000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:13: start 6936.800000, end 9140.840000
    Metadata:
      title           : Sharing Started
    Chapter #0:14: start 9140.840000, end 9145.680000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:15: start 9145.680000, end 9297.600000
    Metadata:
      title           : Sharing Started
    Chapter #0:16: start 9297.600000, end 9306.040000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:17: start 9306.040000, end 9572.480000
    Metadata:
      title           : Sharing Started
    Chapter #0:18: start 9572.480000, end 9620.680000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:19: start 9620.680000, end 10020.760000
    Metadata:
      title           : Sharing Started
    Chapter #0:20: start 10020.760000, end 10085.480000
    Metadata:
      title           : Sharing Stopped
    Chapter #0:21: start 10085.480000, end 10781.920000
    Metadata:
      title           : Sharing Started
    Chapter #0:22: start 10781.920000, end 11020.040000
    Metadata:
      title           : Sharing Stopped
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 32000 Hz, mono, fltp, 53 kb/s (default)
    Metadata:
      creation_time   : 2020-09-22T06:20:53.000000Z
      handler_name    : AAC audio
    Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 481 kb/s, 25 fps, 25 tbr, 30k tbn, 60k tbc (default)
    Metadata:
      creation_time   : 2020-09-22T06:20:53.000000Z
      handler_name    : H.264/AVC video
      encoder         : AVC Coding
    Stream #0:2(und): Data: bin_data (text / 0x74786574)
    Metadata:
      creation_time   : 2020-09-22T06:20:53.000000Z
      handler_name    : Text


  


  Here is a link to the -report log file from ffmpeg (on pastebin) : https://pastebin.com/i9ix3GsC

  


• How can I convert a mp4 into an ogv with ffmpeg ? I am getting a "segmentation fault"

  8 mars 2020, par xrainbowuk

  I am trying to use ffmpeg to convert a mp4 video into an ogv and a webm. I am using a Mac and this is what I am putting into the terminal :

  ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora -codec:a libvorbis -f ogv output.ogv

  This is what I am getting in response :

      ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --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-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --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-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
  
    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Hands-typing-(mobile-1080p-loop) copy.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2020-03-04T20:14:21.000000Z
  
    Duration: 00:00:21.18, start: 0.000000, bitrate: 8201 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 8085 kb/s, 30 fps, 30 tbr, 30k tbn, 60k tbc (default)
  
      Metadata:
  
        creation_time   : 2020-03-04T20:14:21.000000Z
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)
  
      Metadata:
  
        creation_time   : 2020-03-04T20:14:21.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> theora (libtheora))
  
    Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
  
  Press [q] to stop, [?] for help
  
  zsh: segmentation fault  ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora   -f

  I have also tried this, which doesn’t work :

  ffmpeg -i "Hands-typing-(mobile-1080p-loop) copy.mp4" -codec:v libtheora -qscale:v 3 -codec:a libvorbis \
  
    -qscale:a 3 -f ogv output.ogv

  I am struggling to find the answer to my question. Especially as there are so many posts about "segmentation faults".

  Any help is very much appreciated.

• Passing arguments to Powershells Call Operatore - I can't get it to work

  2 janvier 2020, par morgola22

  For some reason I cannot get even the most simple Ffmpeg case to work :

  $pathToFfmpeg = "PathToFfmpeg\ffmpeg.exe"
  
  $video = "PathToVideoFile\video.mp4"
  
  $param = "--i $video", "output.avi"
  
  $execute = &$pathToFfmpeg $param

  This should result in the most basic Ffmpeg usage according to Ffmpeg website : ffmpeg -i input.mp4 output.avi.
  However all I receive is :

  ffmpeg.exe : ffmpeg version git-2020-01-01-7b58702 Copyright (c) 2000-2020 the FFmpeg developers
  
  At line:4 char:12
  
  + [string[]] $execute = &$pathToFfmpeg $param
  
  +                          ~~~~~~~~~~~~~~~~~~~~~
  
      + CategoryInfo          : NotSpecified: (ffmpeg version ...mpeg developers:String) [], RemoteException
  
      + FullyQualifiedErrorId : NativeCommandError
  
  
  
    built with gcc 9.2.1 (GCC) 20191125
  
    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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec 
  
  --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 38.100 / 56. 38.100
  
    libavcodec     58. 65.100 / 58. 65.100
  
    libavformat    58. 35.101 / 58. 35.101
  
    libavdevice    58.  9.102 / 58.  9.102
  
    libavfilter     7. 70.101 /  7. 70.101
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Unrecognized option '-i PathToVideoFile\video.mp4'.
  
  Error splitting the argument list: Option not found

  So it seems I am doing something wrong. Anybody knows how I get this to work ? I have tried different methods to create the params array and checked with EchoArgs.exe, but no avail. I am out of ideas. It looks like Ffmpeg does not recognise what Powershell is passing to it.