content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.android.server.usb.descriptors;
  
  import com.android.server.usb.descriptors.report.ReportCanvas;
  
  /**
   * @hide
   * An audio class-specific Format II interface.
   * see Frmts20.pdf section 2.3.2.6 Type II Format Type Descriptor
   */
  public final class Usb20ASFormatII extends UsbASFormat {
      private static final String TAG = "Usb20ASFormatII";
  
      // Frmts20.pdf Table 2-3: Type II Format Type Descriptor
      private int mMaxBitRate;    // 4:2 Indicates the maximum number of bits per
                                  // second this interface can handle in kbits/s.
      private int mSlotsPerFrame; // 6:2 Indicates the number of PCM audio slots
                                  // contained in one encoded audio frame.
  
      /**
       * TBD
       */
      public Usb20ASFormatII(int length, byte type, byte subtype, byte formatType, int subclass) {
          super(length, type, subtype, formatType, subclass);
      }
  
      /**
       * TBD
       */
      public int getmaxBitRate() {
          return mMaxBitRate;
      }
  
      /**
       * TBD
       */
      public int getSlotsPerFrame() {
          return mSlotsPerFrame;
      }
  
      @Override
      public int parseRawDescriptors(ByteStream stream) {
          mMaxBitRate = stream.unpackUsbShort();
          mSlotsPerFrame = stream.unpackUsbShort();
  
          return mLength;
      }
  
      @Override
      public void report(ReportCanvas canvas) {
          super.report(canvas);
  
          canvas.openList();
          canvas.writeListItem("Max Bit Rate: " + getmaxBitRate());
          canvas.writeListItem("slots Per Frame: " + getSlotsPerFrame());
          canvas.closeList();
      }
  }
  