libv4l-rockchip_v2: Stretch lower bound of quantization value

The original lower bound of quantization value is 30. It seems to be
high and setting higher allowed quantization value doesn't make sense.
This CL decreases the lower bound to four.

BUG=b:170790027
TEST=video.EncodeAccel.vp8*

Change-Id: I06f2e5c13124ce2dd47e13e198b74d1347fa75df
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/libv4lplugins/+/3121666
Tested-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
1 file changed
tree: 4c456646357a19df1ab6f5b86f5a27edb33f59c6
  1. libv4l-rockchip/
  2. libv4l-rockchip_v2/
  3. OWNERS
  4. PRESUBMIT.cfg