[FFmpeg-user] Lost information when convert m4s to MP4

[HatteWare]

Hey Guys,

I was trying to dowload from segmented files in m4s format. I'm using
invidownloader, so when i concatenated the files and convert, data has been
lost.

Example, original video has 10 minutes and 31 seconds, but when converted
the merged m4s files to mp4 the output file has only 04:48 lenght. See the
metadata:

ffmpeg version N-86950-g1bef008 Copyright (c) 2000-2017 the FFmpeg
developers
  built with gcc 7.1.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid
--e
nable-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-li
bfreetype --enable-libgme --enable-libgsm --enable-libilbc
--enable-libmodplug -
-enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enabl
e-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp
--enable-li
bsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolam
e --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
--enable
-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 70.100 / 55. 70.100
  libavcodec     57.102.100 / 57.102.100
  libavformat    57. 76.100 / 57. 76.100
  libavdevice    57.  7.100 / 57.  7.100
  libavfilter     6. 98.100 /  6. 98.100
  libswscale      4.  7.102 /  4.  7.102
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'conjunto4':
  Metadata:
    major_brand     : iso5
    minor_version   : 512
    compatible_brands: iso6mp41
    encoder         : Lavf57.76.100
*  Duration: 00:04:48.00*, start: 0.000000, bitrate: 239 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt470b
g/smpte170m/bt470bg), 640x360 [SAR 1:1 DAR 16:9], 100 kb/s, 30 fps, 30 tbr,
1536
0 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Output #0, mp4, to 'arquivo.mp4':
  Metadata:
    major_brand     : iso5
    minor_version   : 512
    compatible_brands: iso6mp41
    encoder         : Lavf57.76.100
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt470b
g/smpte170m/bt470bg), 640x360 [SAR 1:1 DAR 16:9], q=2-31, 100 kb/s, 30 fps,
30 t
br, 15360 tbn, 15360 tbc (default)
    Metadata:
      handler_name    : VideoHandler


what can i do?



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