Unify cli encoder info
Support "dgi" file extension
Support "vpy" file extension
Support invoking LSMASHSource in avs demuxer
Auto VBV settings
Fix fade compensation
Separate I/P/B qpmin/qpmax parameters
Use f3kdb for bit depth conversion when needed

This fixes high bit depth AviSynth input with input-depth != 16 or BIT_DEPTH
Correct framerate to proper NTSC fraction if applicable
Unofficial --device
Video filter: subtitles
Add an option to use r2204 style progress indicator
Variable progress precision, print encoded file size & estimated total size

This patch may cause progress indicator to exceed console width limit.
Try to increase width of console window to avoid the problem.
AVI output
Add an option to specify lavf decoder
Filters hqdn3d pad vflip yadif patch
Auto keyint

When --keyint is negative value or "auto", keyint_max is set to fps * 10 automatically.