[PTZ] Add pan-tilt-zoom support state to fake video capture config

This CL adds pan-tilt-zoom support state to fake photo device config and
allows that state to controller.

Bug: 934063

Change-Id: I4cf4a0525962bfb504d7e57bf18d97bde2766381
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2225716
Commit-Queue: Eero Häkkinen <eero.hakkinen@intel.com>
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774997}

media/capture/video/fake_video_capture_device.cc

@@ -610,22 +610,28 @@ void FakePhotoDevice::GetPhotoState(
   photo_state->focus_distance->step = kFocusDistanceStep;
 
   photo_state->pan = mojom::Range::New();
+  if (config_.pan_tilt_zoom_supported) {
     photo_state->pan->current = fake_device_state_->pan;
     photo_state->pan->max = kMaxPan;
     photo_state->pan->min = kMinPan;
     photo_state->pan->step = kPanStep;
+  }
 
   photo_state->tilt = mojom::Range::New();
+  if (config_.pan_tilt_zoom_supported) {
     photo_state->tilt->current = fake_device_state_->tilt;
     photo_state->tilt->max = kMaxTilt;
     photo_state->tilt->min = kMinTilt;
     photo_state->tilt->step = kTiltStep;
+  }
 
   photo_state->zoom = mojom::Range::New();
+  if (config_.pan_tilt_zoom_supported) {
     photo_state->zoom->current = fake_device_state_->zoom;
     photo_state->zoom->max = kMaxZoom;
     photo_state->zoom->min = kMinZoom;
     photo_state->zoom->step = kZoomStep;
+  }
 
   photo_state->supports_torch = false;
   photo_state->torch = false;

media/capture/video/fake_video_capture_device.h

@@ -156,14 +156,10 @@ class FrameDelivererFactory {
 };
 
 struct FakePhotoDeviceConfig {
-  FakePhotoDeviceConfig()
-      : should_fail_get_photo_capabilities(false),
-        should_fail_set_photo_options(false),
-        should_fail_take_photo(false) {}
-
-  bool should_fail_get_photo_capabilities;
-  bool should_fail_set_photo_options;
-  bool should_fail_take_photo;
+  bool pan_tilt_zoom_supported = true;
+  bool should_fail_get_photo_capabilities = false;
+  bool should_fail_set_photo_options = false;
+  bool should_fail_take_photo = false;
 };
 
 // Implements the photo functionality of a FakeVideoCaptureDevice

media/capture/video/fake_video_capture_device_factory.cc

@@ -209,17 +209,18 @@ void FakeVideoCaptureDeviceFactory::GetDeviceDescriptors(
     device_descriptors->emplace_back(
         base::StringPrintf("fake_device_%d", entry_index), entry.device_id,
 #if defined(OS_LINUX)
-        VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE
+        VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE,
 #elif defined(OS_MACOSX)
-        VideoCaptureApi::MACOSX_AVFOUNDATION
+        VideoCaptureApi::MACOSX_AVFOUNDATION,
 #elif defined(OS_WIN)
-        VideoCaptureApi::WIN_DIRECT_SHOW
+        VideoCaptureApi::WIN_DIRECT_SHOW,
 #elif defined(OS_ANDROID)
-        VideoCaptureApi::ANDROID_API2_LEGACY
+        VideoCaptureApi::ANDROID_API2_LEGACY,
 #elif defined(OS_FUCHSIA)
-        VideoCaptureApi::UNKNOWN
+        VideoCaptureApi::UNKNOWN,
 #endif
-        );
+        VideoCaptureTransportType::OTHER_TRANSPORT,
+        entry.photo_device_config.pan_tilt_zoom_supported);
     entry_index++;
   }
 }
@@ -255,6 +256,7 @@ void FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString(
   std::vector<gfx::Size> resolutions = ArrayToVector(kDefaultResolutions);
   std::vector<float> frame_rates = ArrayToVector(kDefaultFrameRates);
   int device_count = kDefaultDeviceCount;
+  FakePhotoDeviceConfig photo_device_config;
   FakeVideoCaptureDevice::DisplayMediaType display_media_type =
       FakeVideoCaptureDevice::DisplayMediaType::ANY;
 
@@ -331,6 +333,13 @@ void FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString(
       } else if (base::EqualsCaseInsensitiveASCII(param.back(), "browser")) {
         display_media_type = FakeVideoCaptureDevice::DisplayMediaType::BROWSER;
       }
+    } else if (base::EqualsCaseInsensitiveASCII(param.front(),
+                                                "hardware-support")) {
+      photo_device_config.pan_tilt_zoom_supported = false;
+      if (base::EqualsCaseInsensitiveASCII(param.back(), "pan-tilt-zoom"))
+        photo_device_config.pan_tilt_zoom_supported = true;
+      else if (!base::EqualsCaseInsensitiveASCII(param.back(), "none"))
+        LOG(WARNING) << "Unknown hardware support " << param.back();
     }
   }
 
@@ -342,6 +351,7 @@ void FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString(
     settings.device_id = base::StringPrintf(kDefaultDeviceIdMask, device_index);
     AppendAllCombinationsToFormatsContainer(
         pixel_formats, resolutions, frame_rates, &settings.supported_formats);
+    settings.photo_device_config = photo_device_config;
     settings.display_media_type = display_media_type;
     config->push_back(settings);
   }

media/capture/video/fake_video_capture_device_unittest.cc

@@ -33,6 +33,11 @@ using ::testing::Values;
 
 namespace media {
 
+bool operator==(const FakePhotoDeviceConfig& lhs,
+                const FakePhotoDeviceConfig& rhs) {
+  return std::memcmp(&lhs, &rhs, sizeof(lhs)) == 0;
+}
+
 namespace {
 
 class ImageCaptureClient : public base::RefCounted<ImageCaptureClient> {
@@ -405,6 +410,7 @@ struct CommandLineTestData {
   size_t expected_device_count;
   FakeVideoCaptureDevice::DisplayMediaType expected_display_media_type;
   std::vector<VideoPixelFormat> expected_pixel_formats;
+  FakePhotoDeviceConfig expected_photo_device_config;
 };
 
 class FakeVideoCaptureDeviceFactoryTest
@@ -442,6 +448,8 @@ TEST_P(FakeVideoCaptureDeviceFactoryTest,
   FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString(
       GetParam().switch_value_string, &config);
   for (const auto& settings : config) {
+    EXPECT_EQ(GetParam().expected_photo_device_config,
+              settings.photo_device_config);
     EXPECT_EQ(GetParam().expected_display_media_type,
               settings.display_media_type);
   }
@@ -491,7 +499,8 @@ INSTANTIATE_TEST_SUITE_P(
                                5,
                                1u,
                                FakeVideoCaptureDevice::DisplayMediaType::ANY,
-                               {PIXEL_FORMAT_I420}},
+                               {PIXEL_FORMAT_I420},
+                               {true, false, false, false}},
            CommandLineTestData{"fps=29.97,device-count=1",
                                29.97f,
                                1u,
@@ -524,6 +533,18 @@ INSTANTIATE_TEST_SUITE_P(
                                0u,
                                FakeVideoCaptureDevice::DisplayMediaType::ANY,
                                {PIXEL_FORMAT_I420}},
+           CommandLineTestData{"hardware-support=none",
+                               20,
+                               1u,
+                               FakeVideoCaptureDevice::DisplayMediaType::ANY,
+                               {PIXEL_FORMAT_I420},
+                               {false}},
+           CommandLineTestData{"hardware-support=pan-tilt-zoom,fps=60",
+                               60,
+                               1u,
+                               FakeVideoCaptureDevice::DisplayMediaType::ANY,
+                               {PIXEL_FORMAT_I420},
+                               {true}},
            CommandLineTestData{"display-media-type=window",
                                20,
                                1u,