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• ffprobe failing on certain videos

  19 mars 2020, par griswoldbar

  I work on a platform that uses ffprobe as part of a video transcoding pipeline. One of our users is trying and failing to upload video clips extracted from a CCTV system, and it seems the failure is occurring when we parse the clips with ffprobe.

  When I run ffprobe from the command line, I get this :

  $ ffprobe file.avi
  
  ffprobe version 4.2.2 Copyright (c) 2007-2019 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
  
  [avi @ 0x7fc22280b800] Invalid sample_size -1 at stream 1 setting it to 0
  
  [avi @ 0x7fc22280b800] Invalid sample_size -1 at stream 2 setting it to 0
  
  [avi @ 0x7fc22280b800] wav header size < 14 is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
  
  [avi @ 0x7fc22280b800] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
  
  file.avi: Invalid data found when processing input

  I am however able to parse it with mediainfo, which outputs this :

  $ mediainfo file.avi
  
  General
  
  Complete name                            : file.avi
  
  Format                                   : AVI
  
  Format/Info                              : Audio Video Interleave
  
  File size                                : 11.3 MiB
  
  Duration                                 : 5 min 0 s
  
  Overall bit rate                         : 316 kb/s
  
  
  
  Video
  
  ID                                       : 0
  
  Format                                   : MPEG-4 Visual
  
  Codec ID                                 : MP43
  
  Codec ID/Info                            : Microsoft MPEG-4 v3 (pre-standard)
  
  Codec ID/Hint                            : Microsoft
  
  Duration                                 : 5 min 0 s
  
  Source duration                          : 5 min 0 s
  
  Bit rate                                 : 308 kb/s
  
  Width                                    : 640 pixels
  
  Height                                   : 480 pixels
  
  Display aspect ratio                     : 4:3
  
  Frame rate                               : 16.000 FPS
  
  Compression mode                         : Lossy
  
  Bits/(Pixel*Frame)                       : 0.063
  
  Stream size                              : 11.0 MiB (97%)

  I’m guessing/hoping that there’s a way to make this work by passing appropriate flags to ffprobe - can anyone point me in the right direction ?

• CLI Extract date/time stamp (timestamp) from quicktime or mpeg files

  25 mai 2020, par vy32

  Is there a way to extract a date/time or a timestamp from various multi-media container files with Quicktime or MPEG2/MPEG4 ? I'm looking ideally for a command line tool. I have been able to get timestamps using ffprobe, part of the ffmpeg suite, but I haven't gotten the year, month and date. The camera had a clock so I'm pretty sure that this information was available.

  



  The history of this data file is that it was first shot on miniDV and transferred to a Mac over Firewire 800 using QuicktimePlayer to record the video. I'm told that the miniDV format is motion jpeg. The file command reports that the file is ISO Media, Apple QuickTime movie, Apple QuickTime (.MOV/QT).

  



  % ffprobe -f lavfi -i "movie=filename.mov,fps=fps=25[out0]" -show_frames -show_streams -show_entries frame=pkt_pts_time -of csv=p=0 2>&1 | head -30
ffprobe version 4.2.2 Copyright (c) 2007-2019 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-avresample --enable-libmp3lame --enable-libvorbis --enable-libopus --enable-librsvg --enable-libtheora --enable-libopenjpeg --enable-libmodplug --enable-libvpx --enable-libsoxr --enable-libspeex --enable-libass --enable-libbluray --enable-lzma --enable-gnutls --enable-fontconfig --enable-libfreetype --enable-libfribidi --disable-libjack --disable-libopencore-amrnb --disable-libopencore-amrwb --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes --disable-indev=jack --enable-opencl --disable-outdev=xv --enable-audiotoolbox --enable-videotoolbox --enable-sdl2 --disable-securetransport --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-x86asm --enable-libx265 --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid --enable-nonfree --enable-libfdk-aac
  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, lavfi, from 'movie=/Volumes/SanDiskSSD/Movies/Italy22.mov,fps=fps=25[out0]':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
0.000000
0.040000
0.080000
0.120000
0.160000
0.200000
0.240000
0.280000
0.320000
0.360000
0.400000
0.440000
0.480000
0.520000
0.560000
%


  



  I want output showing the year, month and date that this was shot.

  


• Is there any way to combine PNGs as a Quicktime-compatible MP4 from FFMPEG ?

  12 avril 2020, par griffin2000

  Is there any way to get combine PNGs as a Quicktime-compatible MP4 from FFMPEG ?

  



  I'm using this command currently :

  



  ffmpeg -i frame%03d.png -pix_fmt yuv420p  output.mp4


  



  This is the video works fine in VLC and can be uploaded to Youtube/Vimeo/Facebook fine but Quicktime complains that it "cannot be opened" :


  



  A few questions (e.g. https://apple.stackexchange.com/questions/166553/why-wont-video-from-ffmpeg-show-in-quicktime-imovie-or-quick-preview) about this at various sources, but none of the answers seem to work and they all seem to boil to down to some variant of "use yuv420p" or a couple of other flags. None of which seems to work. Apparently it may have changed in later (post-Yosemite) versions of MacOS ?

  



  So what (if anything) is the magic incantation that make this work with later versions of Quicktime ?

  



  Thanks all

  



  ffprobe output below FYI :

  



  ffprobe version 4.2.2 Copyright (c) 2007-2019 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 '/Users/xxx/Downloads/output (14).mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.20.100
  Duration: 00:00:02.72, start: 0.000000, bitrate: 677 kb/s
    Stream #0:0(und): Video: h264 (High 4:4:4 Predictive) (avc1 / 0x31637661), yuv444p, 1714x1630, 672 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    Metadata:
      handler_name    : VideoHandler