E:\bigmoved2\22\editing\old\problem\1>ffmpeg -vsync cfr -i Apr__8_2019_WLC_C_3.3gp -acodec copy -r 30000/1001 -f null -
ffmpeg version N-93562-g3e10223385 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8.2.1 (GCC) 20190212
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enab
nable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-l
-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --e
tab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --
3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 26.100 / 56. 26.100
  libavcodec     58. 50.100 / 58. 50.100
  libavformat    58. 27.102 / 58. 27.102
  libavdevice    58.  7.100 / 58.  7.100
  libavfilter     7. 48.100 /  7. 48.100
  libswscale      5.  4.100 /  5.  4.100
  libswresample   3.  4.100 /  3.  4.100
  libpostproc    55.  4.100 / 55.  4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Apr__8_2019_WLC_C_3.3gp':
  Metadata:
    major_brand     : 3gp4
    minor_version   : 0
    compatible_brands: isom3gp4
    creation_time   : 2019-04-08T21:58:13.000000Z
    com.android.version: 6.0
  Duration: 00:08:21.25, start: 0.000000, bitrate: 4136 kb/s
    Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x480, 4007 kb/s, SAR 1:1 DAR
    Metadata:
      creation_time   : 2019-04-08T21:58:13.000000Z
      handler_name    : VideoHandle
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      creation_time   : 2019-04-08T21:58:13.000000Z
      handler_name    : SoundHandle
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, null, to 'pipe:':
  Metadata:
    major_brand     : 3gp4
    minor_version   : 0
    compatible_brands: isom3gp4
    com.android.version: 6.0
    encoder         : Lavf58.27.102
    Stream #0:0(eng): Video: wrapped_avframe, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 29.97 fps, 29.97 tb
    Metadata:
      creation_time   : 2019-04-08T21:58:13.000000Z
      handler_name    : VideoHandle
      encoder         : Lavc58.50.100 wrapped_avframe
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      creation_time   : 2019-04-08T21:58:13.000000Z
      handler_name    : SoundHandle
frame=15016 fps=1126 q=-0.0 Lsize=N/A time=00:08:21.24 bitrate=N/A dup=51 drop=16 speed=37.6x
video:7860kB audio:7832kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

E:\bigmoved2\22\editing\old\problem\1>