Peter Boström 6a688f5265 Add default downscale threshold to QualityScaler.
Prevents downscaling below 160x90 or 90x160 to gain more quality.

BUG=4625
R=mflodman@webrtc.org

Review URL: https://codereview.webrtc.org/1160403004.

Cr-Commit-Position: refs/heads/master@{#9480}
2015-06-22 06:03:07 +00:00
..
2015-05-30 00:21:56 +00:00
2015-05-30 00:21:56 +00:00