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I tried some other recommended conversion commands but none of them worked. Here's the basic command:

ffmpeg -i wmvfile.wmv somefile6.mp4

Output:

ffmpeg version N-91548-g481741ece0 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.1 (GCC) 20180722
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 18.102 / 56. 18.102
  libavcodec     58. 22.100 / 58. 22.100
  libavformat    58. 17.101 / 58. 17.101
  libavdevice    58.  4.101 / 58.  4.101
  libavfilter     7. 26.100 /  7. 26.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
[vc1 @ 000002229e3a31c0] Progressive Segmented Frame mode: not supported (yet)
[asf @ 000002229e36a000] Failed to open codec in avformat_find_stream_info
[vc1 @ 000002229e3a31c0] Progressive Segmented Frame mode: not supported (yet)
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, asf, from 'wmvfile.wmv':
  Duration: 00:01:27.79, start: 0.000000, bitrate: 756 kb/s
    Stream #0:0: Video: vc1 (WVC1 / 0x31435657), none, 1280x720, 1k tbr, 1k tbn, 1k tbc
    Stream #0:1: Audio: wmav2 (a[1][0][0] / 0x0161), 48000 Hz, stereo, fltp, 64 kb/s
[vc1 @ 000002229e42eb00] Progressive Segmented Frame mode: not supported (yet)
Stream mapping:
  Stream #0:0 -> #0:0 (vc1 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (wmav2 (native) -> aac (native))
Error while opening decoder for input stream #0:0 : Operation not permitted
  • Have you tried running it as root/with sudo? Last line suggests that your permissions aren't sufficient. – confetti Aug 1 '18 at 18:11
  • This is via Windows. But I did run as administrator on the command prompt. – Victor Aug 1 '18 at 18:35
  • 1
    ffmpeg doesn't support decoding the video stream: [vc1 @ 000002229e3a31c0] Progressive Segmented Frame mode: not supported (yet) – Gyan Aug 1 '18 at 19:21
  • Is there any workaround? Any other program that can convert it to a more useful format? – Victor Aug 1 '18 at 21:04
  • Your basic command works on ffmpeg version 4.0.1. – iangetz Aug 2 '18 at 1:51

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