Example 1: ffmpeg -i input.avi -c:v libxvid output.mp4
The code that I get as output is:
ffmpeg -i input_1.avi -c:v libxvid output_1.mp4
ffmpeg version git-2020-02-16-8578433 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200122
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 41.100 / 56. 41.100
libavcodec 58. 70.100 / 58. 70.100
libavformat 58. 38.101 / 58. 38.101
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 76.100 / 7. 76.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Input #0, avi, from 'input_1.avi':
Duration: 00:00:02.53, start: 0.000000, bitrate: 498000 kb/s
Stream #0:0: Video: rawvideo (Y800 / 0x30303859), gray, 1920x1080, 504300 kb/s, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg4 (libxvid))
Press [q] to stop, [?] for help
Output #0, mp4, to 'output_1.mp4':
Metadata:
encoder : Lavf58.38.101
Stream #0:0: Video: mpeg4 (libxvid) (mp4v / 0x7634706D), yuv420p, 1920x1080, q=2-31, 200 kb/s, 30 fps, 15360 tbn, 30 tbc
Metadata:
encoder : Lavc58.70.100 libxvid
frame= 76 fps= 41 q=31.0 Lsize= 313kB time=00:00:02.50 bitrate=1024.0kbits/s speed=1.35x
video:311kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.371668%
Example 2:
Maybe the libxvid was not the best example. What if I would use a lossless compression such as x264:
ffmpeg -i input.avi -c:v libx264 -preset veryslow -crf 0 output.mp4
What command do you use if you want to ask ffmpeg
to decompress a video file for you?