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• Wav file "Invalid data found when processing input"

  3 octobre 2017, par rbcvlr

  Thanks for paying attention.

  I try to cut 3 seconds of 1000 wav-files. To do this, I chose FFMPEG through a .bat

  Here is my code :

  set i=0
  
  for %%X in (sons_musique/*.wav) do (
  
  echo Traitement de %%X... 
  
  echo valeur de i %i%...
  
  ffmpeg -ss 00:00:00.001 -i "sons_musique/%%X" -t 00:00:03.001 "sons_musique/extrait%i%.wav"
  
  set /a i+=1)

  Here is my issue :

  Traitement de Musique (1).wav...
  
  valeur de i 0...
  
  ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg developers
  
  built with gcc 7.2.0 (GCC)
  
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
  
  libavutil      55. 76.100 / 55. 76.100
  
  libavcodec     57.106.101 / 57.106.101
  
  libavformat    57. 82.101 / 57. 82.101
  
  libavdevice    57.  8.101 / 57.  8.101
  
  libavfilter     6.105.100 /  6.105.100
  
  libswscale      4.  7.103 /  4.  7.103
  
  libswresample   2.  8.100 /  2.  8.100
  
  libpostproc    54.  6.100 / 54.  6.100
  
  sons_musique/Musique (1).wav: Invalid data found when processing input

  Files are recognized into the loop.

  Is it an isue from the I/O datas ?

  What’s wrong in these lines ? I tried to fix this issue by different ways and changing parameters. The syntax seems to be correct.

  Thank you in advance for your attention and your help.

• "Non-monotonous DTS" and jerky video when copying streams

  2 décembre 2017, par forthrin

  I’m switching containers from MKV to mp4 for a set of video files. This has worked for all videos before, but now I’m getting weird problems (also when converting from MKV to another MKV !)

  1. I’m getting a million Non-monotonous DTS in output stream messages
  2. With QuickTime on macOS the video is jerking back and forth very fast while playing
  3. With VLC on macOS, the video is skipping a lot of frames

  How can I fix this, without re-encoding the video stream ? (Re-encoding audio would be acceptable.) Somehow it must be possible since the original MKV works perfectly !

  $ ffmpeg -i in.mkv -codec copy out.mp4
  
  ffmpeg version 3.3.4 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with Apple LLVM version 9.0.0 (clang-900.0.37)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-libass --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-vda
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, matroska,webm, from 'in.mkv':
  
    Metadata:
  
      ENCODER         : Lavf54.63.104
  
    Duration: 00:37:59.98, start: 0.200000, bitrate: 2536 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
  
      Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
  
  [mp4 @ 0x7f93c9006c00] track 1: codec frame size is not set
  
  Output #0, mp4, to 'out.mp4':
  
    Metadata:
  
      encoder         : Lavf57.71.100
  
      Stream #0:0: Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 16k tbn, 1k tbc
  
      Stream #0:1(eng): Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, 5.1(side), fltp, 384 kb/s (default)
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 0x7f93c9006c00] Non-monotonous DTS in output stream 0:0; previous: 60720, current: 60064; changing to 60721. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x7f93c9006c00] Non-monotonous DTS in output stream 0:0; previous: 63392, current: 62736; changing to 63393. This may result in incorrect timestamps in the output file.
  
  (...repeats a million times...)

  MP4Box :

  $ MP4Box -add in.mkv out.mp4
  
  [MPEG-2 TS] TS Packet 1 is scrambled - not supported
  
  [MPEG-2 TS] TS Packet 3 does not start with sync marker
  
  ...
  
  [MPEG-2 TS] TS Packet 999 does not start with sync marker
  
  [Importer] Unknown input file type
  
  Error importing in.mkv: Corrupted Data in file/stream

  So the file is maybe corrupt ? (Though it plays perfectly to begin with, in VLC at least !) Is there any way I can repair it and convert it to an mp4 file, again without re-encoding the video stream ?

• ffmpeg showing "Error initializing output stream 0:0"

  31 juillet 2017, par user2565010

  I am running the following command

  ffmpeg -i DJI_0001.MOV DJI_0001.mp4

  in order to convert the video to mp4 from MOV with no other property changes.

  The issue is that I am getting :

  ffmpeg version N-86863-g2ba20d799a-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 6.4.0 (Debian 6.4.0-2) 20170724
  
    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-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
  
    libavutil      55. 69.100 / 55. 69.100
  
    libavcodec     57.102.100 / 57.102.100
  
    libavformat    57. 76.100 / 57. 76.100
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 95.100 /  6. 95.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'DJI_0001.MOV':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 538182144
  
      compatible_brands: qt  
  
      creation_time   : 2017-07-23T17:04:58.000000Z
  
      location        : 
  
      location-{    : 
  
      comment         : 0.9.142
  
    Duration: 00:00:17.89, start: 0.000000, bitrate: 60017 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 4096x2160 [SAR 1:1 DAR 256:135], 60014 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
  
      Metadata:
  
        creation_time   : 2017-07-23T17:04:58.000000Z
  
        handler_name    : DJI.AVC
  
        encoder         : Dji AVC encoder
  
  File 'DJI_0001.mp4' already exists. Overwrite ? [y/N] y
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0x3ed56a0] using SAR=1/1
  
  [libx264 @ 0x3ed56a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Conversion failed!

  I see no other error message that would indicate an underlying problem. Could anybody please give me some info on how should I fix it ?