impement android.media.MediaCodec using libavcodec

The current implementation requires a VA-API driver and a Wayland
compositor with YUV-buffer support. GNOME supports YUV-buffers
since the recent version 45 release

src/api-impl/android/media/MediaFormat.java

@@ -0,0 +1,42 @@
+package android.media;
+
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Map;
+
+public class MediaFormat {
+
+	private Map<String, Object> map = new HashMap<>();
+
+	public void setString(String key, String value) {
+		map.put(key, value);
+	}
+
+	public void setInteger(String key, int value) {
+		map.put(key, value);
+	}
+
+	public void setByteBuffer(String key, ByteBuffer value) {
+		map.put(key, value);
+	}
+
+	public void setFloat(String key, float value) {
+		map.put(key, value);
+	}
+
+	public ByteBuffer getByteBuffer(String name) {
+		return (ByteBuffer) map.get(name);
+	}
+
+	public int getInteger(String name) {
+		return (int) map.get(name);
+	}
+
+	public boolean containsKey(String name) {
+		return map.containsKey(name);
+	}
+
+	public String toString() {
+		return map.toString();
+	}
+}