[FFmpeg-user] VOB files convertion failed

Wed May 9 08:53:04 EEST 2018

> Concating VOB files usually goes wrong caused by timecode discontinuities
> by the file splitting, I think. You could try to make one single file first
> with ffmpeg regenerating PTS before converting to another format. It
> generally works for me:
>
> ffmpeg -fflags +genpts -i
> "concat:vts_01_0.vob|vts_01_1.vob|vts_01_2.vob(....)" -c copy -f vob
> filme.mpg
>
> I am not completely sure but the video_ts.vob carries the DVD menu, it can
> be messy putting it among the rest of video, since than menus don't have to
> be at same properties of the movie file.

Hi, Micael Silva.

I tried the command you sugested. The command was:

ffmpeg -analyzeduration 500M -probesize 500M -fflags +genpts -i
"concat:../vob/vts_01_0.vob|../vob/vts_01_1.vob|../vob/vts_01_2.vob|../vob/vts_01_3.vob|../vob/vts_01_4.vob|../vob/vts_02_0.vob|../vob/vts_02_1.vob|../vob/vts_03_1.vob|../vob/vts_04_1.vob|../vob/vts_05_1.vob"
-map 0:1 -map 0:2? -map 0:3? -map 0:4? -map 0:5? -metadata:s:a:0
language=eng -metadata:s:a:0 title="English stereo" -metadata:s:a:1
language=por -metadata:s:a:1 title="Português estéreo" -metadata:s:s:0
language=eng -metadata:s:s:0 title="English" -metadata:s:s:1
language=por -metadata:s:s:1 title="Português" -codec:v copy -codec:a
copy -codec:s copy -f vob crepusculo.mp4

The output os that command was:

ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
  configuration: --prefix=/usr --enable-gpl --enable-version3 \
  --enable-nonfree --disable-static --enable-shared --disable-debug \
  --enable-libass --enable-libfdk-aac --enable-libfreetype \
  --enable-libmp3lame --enable-libopus --enable-libtheora \
  --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 \
  --enable-openssl --docdir=/usr/share/doc/ffmpeg-3.3.3

  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
  libswscale      4.  6.100 /  4.  6.100
  libswresample   2.  7.100 /  2.  7.100
  libpostproc    54.  5.100 / 54.  5.100
Input #0, mpeg, from \
'concat:../vob/vts_01_0.vob|../vob/vts_01_1.vob|../vob/vts_01_2.vob|../vob/vts_01_3.vob|../vob/vts_01_4.vob|../vob/vts_02_0.vob|../vob/vts_02_1.vob|../vob/vts_03_1.vob|../vob/vts_04_1.vob|../vob/vts_05_1.vob':

  Duration: 00:01:43.71, start: 0.280633, bitrate: 347385 kb/s
    Stream #0:0[0x1bf]: Data: dvd_nav_packet
    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top \
    first), 720x480 [SAR 32:27 DAR 16:9], 29.97 fps, 29.97 tbr, 90k \
    tbn, 59.94 tbc

    Stream #0:2[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Stream #0:3[0x20]: Subtitle: dvd_subtitle
    Stream #0:4[0x21]: Subtitle: dvd_subtitle
    Stream #0:5[0x81]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
[vob @ 0x18c5ac0] VBV buffer size not set, using default size of 130KB
If you want the mpeg file to be compliant to some specification
Like DVD, VCD or others, make sure you set the correct buffer size
Output #0, vob, to 'crepusculo.mp4':
  Metadata:
    encoder         : Lavf57.71.100
    Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), \
    720x480 [SAR 32:27 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k \
    tbn, 29.97 tbc

    Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Metadata:
      title           : English stereo
    Stream #0:2(eng): Subtitle: dvd_subtitle
    Metadata:
      title           : English
    Stream #0:3(por): Subtitle: dvd_subtitle
    Metadata:
      title           : Português
    Stream #0:4(por): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Metadata:
      title           : Português estéreo
Stream mapping:
  Stream #0:1 -> #0:0 (copy)
  Stream #0:2 -> #0:1 (copy)
  Stream #0:3 -> #0:2 (copy)
  Stream #0:4 -> #0:3 (copy)
  Stream #0:5 -> #0:4 (copy)
Press [q] to stop, [?] for help
frame= 7068 fps= 10 q=-1.0 size=       0kB time=00:03:55.76 bitrate=   \
0.0kbits/s speed=0.348x

[vob @ 0x18c5ac0] Application provided invalid, non monotonically \
increasing dts to muxer in stream 2: 17129112 >= 16543527

av_interleaved_write_frame(): Invalid argument
frame= 7069 fps=9.6 q=-1.0 Lsize=  181704kB time=00:03:55.81 \
bitrate=6312.2kbits/s speed=0.319x

video:174046kB audio:5395kB subtitle:22kB other streams:0kB global \
headers:0kB muxing overhead: 1.249032%

Conversion failed!

Any idea?

Thank you in advance.

God bless you!

Jamenson Ferreira Espindula de Almeida Melo
GNU/Linux user # 166197
https://linuxcounter.net/cert/166197.png

Key fingerprint:
234D 1914 4224 7C53 BD13  6855 2AE0 25C0 08A8 6180