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authorUmang Jain <umang.jain@ideasonboard.com>2021-09-23 14:07:47 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2021-09-27 22:24:58 +0530
commit67adaf5ebf4fd2cafc64fa5821246cc5a57d331c (patch)
treef91f06fd6529a897417386b764c91a5481f3781b /src/android/camera_capabilities.cpp
parent11e9d192885d94cbe1e5d850315b8f2b4032d804 (diff)
android: camera_capabilities: Clarify CameraMetadata allocation
CameraMetadata's constructor take in number of entries and number of bytes to be allocated for those entries. However, CameraMetadata is already capable of resizing its container on the fly, in case more entries are added to it. Hence, the numbers passed in during the construction acts as hint values for initialization. Clarify this in CameraCapabilities::requestTemplatePreview() and remove the \todo, as the arguments and the \todo gives the perspective that we need to be quite accurate with the numbers of entries / bytes, which is not the case. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Diffstat (limited to 'src/android/camera_capabilities.cpp')
-rw-r--r--src/android/camera_capabilities.cpp8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/android/camera_capabilities.cpp b/src/android/camera_capabilities.cpp
index e92bca42..edeb6943 100644
--- a/src/android/camera_capabilities.cpp
+++ b/src/android/camera_capabilities.cpp
@@ -1340,8 +1340,12 @@ std::unique_ptr<CameraMetadata> CameraCapabilities::requestTemplateManual() cons
std::unique_ptr<CameraMetadata> CameraCapabilities::requestTemplatePreview() const
{
/*
- * \todo Keep this in sync with the actual number of entries.
- * Currently: 20 entries, 35 bytes
+ * Give initial hint of entries and number of bytes to be allocated.
+ * It is deliberate that the hint is slightly larger than required, to
+ * avoid resizing the container.
+ *
+ * CameraMetadata is capable of resizing the container on the fly, if
+ * adding a new entry will exceed its capacity.
*/
auto requestTemplate = std::make_unique<CameraMetadata>(21, 36);
if (!requestTemplate->isValid()) {