Currently, we only wait 200 ms for the HAL to switch to the precapture
state. This is insufficient at low preview frame rates (dark
conditions, ~10 fps), where a 3-request-deep HAL pipeline will take
300 ms to produce a precapture trigger output. In those cases, we
would prematurely skip the precapture sequence, causing bad quality
pictures.
Since this is a fallback timeout to prevent deadlock in case of a bad
HAL or framework implementation, increase the timeout to 1 second. Has
no impact on correctly-working implementations
Bug:
10430191
Change-Id: I08e99f8e7f3beb8f15dcee32632cdebfe3dca8b3
* Internal to CaptureSequencer
*/
static const nsecs_t kWaitDuration = 100000000; // 100 ms
- static const int kMaxTimeoutsForPrecaptureStart = 2; // 200 ms
+ static const int kMaxTimeoutsForPrecaptureStart = 10; // 1 sec
static const int kMaxTimeoutsForPrecaptureEnd = 20; // 2 sec
static const int kMaxTimeoutsForCaptureEnd = 40; // 4 sec