Add GetDeviceSupportedFormats to Android VideoCapture.java.

The |formats| Java Array is sent to native where is pushed into
the C++ |formats| array. This is easier than to pass data types
to and from Java.

VideoCapture.CaptureCapability modified to match C++ equivalent
VideoCaptureFormat [1]. Added mPixelFormat to it. Internal logic
adapted to keep capture format in that class too. Some internal
allocate() logic is passed from iterator to Java foreach loop.



[1] https://code.google.com/p/chromium/codesearch#chromium/src/media/video/capture/video_capture_types.h&sq=package:chromium&l=37&type=cs

BUG=309554

Review URL: https://codereview.chromium.org/135213005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251857 0039d316-1c4b-4281-b951-d872f2087c98

media/video/capture/android/video_capture_device_android.cc

@@ -56,8 +56,43 @@ void VideoCaptureDevice::GetDeviceNames(Names* device_names) {
 
 // static
 void VideoCaptureDevice::GetDeviceSupportedFormats(const Name& device,
-    VideoCaptureFormats* formats) {
-  NOTIMPLEMENTED();
+    VideoCaptureFormats* capture_formats) {
+  int id;
+  if (!base::StringToInt(device.id(), &id))
+    return;
+  JNIEnv* env = AttachCurrentThread();
+  base::android::ScopedJavaLocalRef<jobjectArray> collected_formats =
+      Java_VideoCapture_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));
+
+    VideoPixelFormat pixel_format = media::PIXEL_FORMAT_UNKNOWN;
+    switch (media::Java_CaptureFormat_getPixelFormat(env, format.obj())) {
+      case VideoCaptureDeviceAndroid::ANDROID_IMAGEFORMAT_YV12:
+        pixel_format = media::PIXEL_FORMAT_YV12;
+        break;
+      case VideoCaptureDeviceAndroid::ANDROID_IMAGEFORMAT_NV21:
+        pixel_format = media::PIXEL_FORMAT_NV21;
+        break;
+      default:
+        break;
+    }
+    VideoCaptureFormat capture_format(
+        gfx::Size(media::Java_CaptureFormat_getWidth(env, format.obj()),
+                  media::Java_CaptureFormat_getHeight(env, format.obj())),
+        media::Java_CaptureFormat_getFramerate(env, format.obj()),
+        pixel_format);
+    capture_formats->push_back(capture_format);
+    DVLOG(1) << device.name() << " resolution: "
+        << capture_format.frame_size.ToString() << ", fps: "
+        << capture_format.frame_rate << ", pixel format: "
+        << capture_format.pixel_format;
+  }
 }
 
 const std::string VideoCaptureDevice::Name::GetModel() const {

media/video/capture/android/video_capture_device_android.h

@@ -23,6 +23,13 @@ namespace media {
 // but only VideoCaptureManager would change their value.
 class MEDIA_EXPORT VideoCaptureDeviceAndroid : public VideoCaptureDevice {
  public:
+  // Automatically generated enum to interface with Java world.
+  enum AndroidImageFormat {
+#define DEFINE_ANDROID_IMAGEFORMAT(name, value) name = value,
+#include "media/video/capture/android/imageformat_list.h"
+#undef DEFINE_ANDROID_IMAGEFORMAT
+  };
+
   virtual ~VideoCaptureDeviceAndroid();
 
   static VideoCaptureDevice* Create(const Name& device_name);
@@ -48,13 +55,6 @@ class MEDIA_EXPORT VideoCaptureDeviceAndroid : public VideoCaptureDevice {
     kError  // Hit error. User needs to recover by destroying the object.
   };
 
-  // Automatically generated enum to interface with Java world.
-  enum AndroidImageFormat {
-#define DEFINE_ANDROID_IMAGEFORMAT(name, value) name = value,
-#include "media/video/capture/android/imageformat_list.h"
-#undef DEFINE_ANDROID_IMAGEFORMAT
-  };
-
   explicit VideoCaptureDeviceAndroid(const Name& device_name);
   bool Init();
   VideoPixelFormat GetColorspace();