Add ignored controls to v4l2_metadata.

BUG: 30140438
Change-Id: If3891e4c59bb8e510e626fdc13a5e1d7e2f29ba9
diff --git a/modules/camera/3_4/v4l2_metadata.cpp b/modules/camera/3_4/v4l2_metadata.cpp
index 7272b61..1ebd9c0 100644
--- a/modules/camera/3_4/v4l2_metadata.cpp
+++ b/modules/camera/3_4/v4l2_metadata.cpp
@@ -20,6 +20,7 @@
 
 #include "common.h"
 #include "metadata/fixed_property.h"
+#include "metadata/ignored_control.h"
 
 namespace v4l2_camera_hal {
 
@@ -30,18 +31,98 @@
   // Currently these are all the fixed properties. Will add the other properties
   // as more PartialMetadata subclasses get implemented.
 
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_COLOR_CORRECTION_ABERRATION_MODE,
+          ANDROID_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES,
+          {ANDROID_COLOR_CORRECTION_ABERRATION_MODE_FAST,
+           ANDROID_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY},
+          ANDROID_COLOR_CORRECTION_ABERRATION_MODE_FAST)));
+
   // TODO(b/30510395): subcomponents of 3A.
   AddComponent(std::unique_ptr<PartialMetadataInterface>(
       new FixedProperty<std::array<int32_t, 3>>(
           ANDROID_CONTROL_MAX_REGIONS, {{/*AE*/ 0, /*AWB*/ 0, /*AF*/ 0}})));
 
+  // Not sure if V4L2 does or doesn't do this, but HAL documentation says
+  // all devices must support FAST, and FAST can be equivalent to OFF, so
+  // either way it's fine to list.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_EDGE_MODE, ANDROID_EDGE_AVAILABLE_EDGE_MODES,
+          {ANDROID_EDGE_MODE_FAST}, ANDROID_EDGE_MODE_FAST)));
+
+  // TODO(30510395): subcomponents of hotpixel.
+  // No known V4L2 hot pixel correction. But it might be happening,
+  // so we report FAST/HIGH_QUALITY.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_HOT_PIXEL_MODE, ANDROID_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES,
+          {ANDROID_HOT_PIXEL_MODE_FAST, ANDROID_HOT_PIXEL_MODE_HIGH_QUALITY},
+          ANDROID_HOT_PIXEL_MODE_FAST)));
+  // ON only needs to be supported for RAW capable devices.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE,
+          ANDROID_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES,
+          {ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE_OFF},
+          ANDROID_STATISTICS_HOT_PIXEL_MAP_MODE_OFF)));
+
   // TODO(30510395): subcomponents focus/lens.
+  // No way to actually get the aperture and focal length
+  // in V4L2, but they're required keys, so fake them.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<float>(
+          ANDROID_LENS_APERTURE, ANDROID_LENS_INFO_AVAILABLE_APERTURES, {2.0},
+          2.0)));  // RPi camera v2 is f/2.0.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<float>(
+          ANDROID_LENS_FOCAL_LENGTH, ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS,
+          {3.04}, 3.04)));  // RPi camera v2 is 3.04mm.
+  // No known way to get filter densities from V4L2,
+  // report 0 to indicate this control is not supported.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<float>(
+          ANDROID_LENS_FILTER_DENSITY,
+          ANDROID_LENS_INFO_AVAILABLE_FILTER_DENSITIES, {0.0}, 0.0)));
+  // V4L2 focal units do not correspond to a particular physical unit.
   AddComponent(
       std::unique_ptr<PartialMetadataInterface>(new FixedProperty<uint8_t>(
           ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION,
           ANDROID_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED)));
+  // info.hyperfocalDistance not required for UNCALIBRATED.
+  // No known V4L2 lens shading. But it might be happening,
+  // so report FAST/HIGH_QUALITY.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_SHADING_MODE, ANDROID_SHADING_AVAILABLE_MODES,
+          {ANDROID_SHADING_MODE_FAST, ANDROID_SHADING_MODE_HIGH_QUALITY},
+          ANDROID_SHADING_MODE_FAST)));
+  // ON only needs to be supported for RAW capable devices.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_STATISTICS_LENS_SHADING_MAP_MODE,
+          ANDROID_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES,
+          {ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF},
+          ANDROID_STATISTICS_LENS_SHADING_MAP_MODE_OFF)));
+
+  // Unable to control noise reduction in V4L2 devices,
+  // but FAST is allowed to be the same as OFF.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_NOISE_REDUCTION_MODE,
+          ANDROID_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES,
+          {ANDROID_NOISE_REDUCTION_MODE_FAST},
+          ANDROID_NOISE_REDUCTION_MODE_FAST)));
 
   // TODO(30510395): subcomponents of formats/streams.
+  // For now, no thumbnails available (only [0,0], the "no thumbnail" size).
+  // TODO(b/29580107): Could end up with a mismatch between request & result,
+  // since V4L2 doesn't actually allow for thumbnail size control.
+  AddComponent(std::unique_ptr<PartialMetadataInterface>(
+      new IgnoredControl<std::array<int32_t, 2>>(
+          ANDROID_JPEG_THUMBNAIL_SIZE, ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
+          {{{0, 0}}}, {{0, 0}})));
   // TODO(b/29939583): V4L2 can only support 1 stream at a time.
   // For now, just reporting minimum allowable for LIMITED devices.
   AddComponent(std::unique_ptr<PartialMetadataInterface>(
@@ -90,6 +171,12 @@
 
   // TODO(30510395): subcomponents of face detection.
   // Face detection not supported.
+  AddComponent(
+      std::unique_ptr<PartialMetadataInterface>(new IgnoredControl<uint8_t>(
+          ANDROID_STATISTICS_FACE_DETECT_MODE,
+          ANDROID_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES,
+          {ANDROID_STATISTICS_FACE_DETECT_MODE_OFF},
+          ANDROID_STATISTICS_FACE_DETECT_MODE_OFF)));
   AddComponent(std::unique_ptr<PartialMetadataInterface>(
       new FixedProperty<int32_t>(ANDROID_STATISTICS_INFO_MAX_FACE_COUNT, 0)));