Android Tango depth camera capture support.

media/capture/video/android/video_capture_device_factory_android.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/capture/video/android/video_capture_device_factory_android.h"
 
 #include <utility>
 
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "jni/VideoCaptureFactory_jni.h"
 #include "media/capture/video/android/video_capture_device_android.h"
+#include "media/capture/video/android/video_capture_device_tango_android.h"
 
 using base::android::AttachCurrentThread;
 using base::android::JavaRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 // static
 ScopedJavaLocalRef<jobject>
 VideoCaptureDeviceFactoryAndroid::createVideoCaptureAndroid(
     int id,
     jlong nativeVideoCaptureDeviceAndroid) {
   return (Java_VideoCaptureFactory_createVideoCapture(
       AttachCurrentThread(), id, nativeVideoCaptureDeviceAndroid));
 }
 
 std::unique_ptr<VideoCaptureDevice>
 VideoCaptureDeviceFactoryAndroid::CreateDevice(
     const VideoCaptureDeviceDescriptor& device_descriptor) {
   DCHECK(thread_checker_.CalledOnValidThread());
   int id;
   if (!base::StringToInt(device_descriptor.device_id, &id))
     return std::unique_ptr<VideoCaptureDevice>();
 
+  if (device_descriptor.capture_api == VideoCaptureApi::ANDROID_TANGO)
+    return std::unique_ptr<VideoCaptureDeviceTangoAndroid>(
+        new VideoCaptureDeviceTangoAndroid(device_descriptor));
   std::unique_ptr<VideoCaptureDeviceAndroid> video_capture_device(
       new VideoCaptureDeviceAndroid(device_descriptor));
 
   if (video_capture_device->Init()) {
     if (test_mode_)
       video_capture_device->ConfigureForTesting();
     return std::move(video_capture_device);
   }
 
   DLOG(ERROR) << "Error creating Video Capture Device.";
@@ skipping 27 matching lines @@
     // Android cameras are not typically USB devices, and the model_id is
     // currently only used for USB model identifiers, so this implementation
     // just indicates an unknown device model (by not providing one).
     device_descriptors->emplace_back(
         display_name, device_id,
         static_cast<VideoCaptureApi>(capture_api_type));
 
     DVLOG(1) << __func__ << ": camera "
              << "device_name=" << display_name << ", unique_id=" << device_id;
   }
+  // Also retrieve Tango device cameras, if present, via Tango API.
+  VideoCaptureDeviceTangoAndroid::EnumerateDevices(device_descriptors);
 }
 
 void VideoCaptureDeviceFactoryAndroid::GetSupportedFormats(
     const VideoCaptureDeviceDescriptor& device,
     VideoCaptureFormats* capture_formats) {
   DCHECK(thread_checker_.CalledOnValidThread());
   int id;
   if (!base::StringToInt(device.device_id, &id))
     return;
+  if (device.capture_api == VideoCaptureApi::ANDROID_TANGO)
+    return VideoCaptureDeviceTangoAndroid::EnumerateDeviceCapabilities(
+        device, capture_formats);
   JNIEnv* env = AttachCurrentThread();
   base::android::ScopedJavaLocalRef<jobjectArray> collected_formats =
       Java_VideoCaptureFactory_getDeviceSupportedFormats(env, id);
   if (collected_formats.is_null())
     return;
 
   jsize num_formats = env->GetArrayLength(collected_formats.obj());
   for (int i = 0; i < num_formats; ++i) {
     base::android::ScopedJavaLocalRef<jobject> format(
         env, env->GetObjectArrayElement(collected_formats.obj(), i));
@@ skipping 36 matching lines @@
 }
 
 // static
 VideoCaptureDeviceFactory*
 VideoCaptureDeviceFactory::CreateVideoCaptureDeviceFactory(
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner) {
   return new VideoCaptureDeviceFactoryAndroid();
 }
 
 }  // namespace media