Typed options for the MPEG-4 Part 2 encoder (libxvid / mpeg4). Legacy format — widely compatible. Available in both v7 and v8. Use libxvid encoder string for Xvid, mpeg4 for FFmpeg native.
Optional
Target bitrate in kbps
Maximum bitrate in kbps
Constant quality: 1–31 (lower = better)
GOP size. Default: 250
Number of B-frames
Motion estimation method
Typed options for the MPEG-4 Part 2 encoder (libxvid / mpeg4). Legacy format — widely compatible. Available in both v7 and v8. Use libxvid encoder string for Xvid, mpeg4 for FFmpeg native.