[libcamera-devel,v4,5/5] src: ipa: raspberrypi: Fix initial AGC oscillation for imx219 sensor
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Message ID 20201201175536.11093-6-david.plowman@raspberrypi.com
State Accepted
Headers show
Series
  • Raspberry Pi AGC improvements
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Commit Message

David Plowman Dec. 1, 2020, 5:55 p.m. UTC 
The exposure times in the exposure modes were causing AGC oscillations
because the algorithm was demanding long unachievable exposure times
but, without working sensor metadata, thought it was getting them when
actually it was not. We fix it by making the exposure profile request
only achievable exposure times, as we do for the ov5647 tuning.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 src/ipa/raspberrypi/data/imx219.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch
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diff --git a/src/ipa/raspberrypi/data/imx219.json b/src/ipa/raspberrypi/data/imx219.json
index b03a7beb..212f8b9a 100644
--- a/src/ipa/raspberrypi/data/imx219.json
+++ b/src/ipa/raspberrypi/data/imx219.json
@@ -133,7 +133,7 @@ 
             {
                 "shutter":
                 [
-                    100, 10000, 30000, 60000, 120000
+                    100, 10000, 30000, 30000, 30000
                 ],
                 "gain":
                 [
@@ -144,7 +144,7 @@ 
             {
                 "shutter":
                 [
-                    100, 5000, 10000, 20000, 120000
+                    100, 5000, 10000, 20000, 30000
                 ],
                 "gain":
                 [