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Commit 24eb57be authored by TreeHugger Robot's avatar TreeHugger Robot Committed by Android (Google) Code Review
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Merge "Camera: Fix rounding issue with minInterval" into tm-dev

parents 448ae113 661b34f6

services/camera/libcameraservice/device3/Camera3OutputStream.cpp

+7 −3
Original line number Diff line number Diff line
@@ -1406,9 +1406,13 @@ nsecs_t Camera3OutputStream::syncTimestampToDisplayLocked(nsecs_t t) { 
    nsecs_t expectedPresentT = mLastPresentTime;

    nsecs_t minDiff = INT64_MAX;

    // Derive minimum intervals between presentation times based on minimal

    // expected duration.

    size_t minVsyncs = (mMinExpectedDuration + vsyncEventData.frameInterval - 1) /

            vsyncEventData.frameInterval - 1;

    // expected duration. The minimum number of Vsyncs is:

    // - 0 if minFrameDuration in (0, 1.5] * vSyncInterval,

    // - 1 if minFrameDuration in (1.5, 2.5] * vSyncInterval,

    // - and so on.

    int minVsyncs = (mMinExpectedDuration - vsyncEventData.frameInterval / 2) /

            vsyncEventData.frameInterval;

    if (minVsyncs < 0) minVsyncs = 0;

    nsecs_t minInterval = minVsyncs * vsyncEventData.frameInterval + kTimelineThresholdNs;

    // Find best timestamp in the vsync timeline:

    // - closest to the ideal present time,