Allow usage of lookahead for VBR in real-time mode, for 1 pass vbr.
Current usage is for fast checking of future scene cuts/changes,
and adjusting rate control (gf interval and active_worst/target size).
Added unittests (datarate) for 1 pass vbr mode, with non-zero lag.
Added an experimental option to limit QP based on lookahead.
Overall positive gain in metrics on ytlive set:
avgPNSR/SSIM up on average ~1-3%; several clips up by 5, 7%.
Change-Id: I960d57dfc89de121c4824b9a9bf88d2814e74b56
For VP9, lossless coding is enabled by passing 0 for both min_q and
max_q. This is a valid configuration, and should not be warned.
Change-Id: Idd117579cd89cd14c0723b1d7e482067ac12b401
- Add command line args that allow display of warnings without prompting
for user input.
- Extend warning code to make it somewhat scalable.
Change-Id: I2bad8f9315f6eed120c2e1bbe0a2a5ede15fbf35
