GraphicBufferSource: Disable timestamp snapping by default

Test: atest CtsMediaTestCases -- \
--module-arg CtsMediaTestCases:size:small

Test: record slow-motion videos and play back

Bug: 139457775
Change-Id: I84f588fcedf5620033cc47ee0b4d0c9f02e04d47
diff --git a/media/libstagefright/bqhelper/GraphicBufferSource.cpp b/media/libstagefright/bqhelper/GraphicBufferSource.cpp
index 591b9e9..de9d12c 100644
--- a/media/libstagefright/bqhelper/GraphicBufferSource.cpp
+++ b/media/libstagefright/bqhelper/GraphicBufferSource.cpp
@@ -1382,7 +1382,7 @@
     mCaptureFps = captureFps;
     if (captureFps > fps) {
         mSnapTimestamps = 1 == base::GetIntProperty(
-                "debug.stagefright.snap_timestamps", int64_t(1));
+                "debug.stagefright.snap_timestamps", int64_t(0));
     } else {
         mSnapTimestamps = false;
     }