text: /////////////////////////////////////////////////////////////////////////////////////////////////
  //
  //  Tencent is pleased to support the open source community by making libpag available.
  //
  //  Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
  //
  //  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.
  //
  /////////////////////////////////////////////////////////////////////////////////////////////////
  
  typedef enum {
    // Keep the original playing speed, and display the last frame if the content's duration is less
    // than target duration.
    PAGTimeStretchModeNone = 0,
    // Change the playing speed of the content to fit target duration.
    PAGTimeStretchModeScale = 1,
    // Keep the original playing speed, but repeat the content if the content's duration is less than
    // target duration.
    // This is the default mode.
    PAGTimeStretchModeRepeat = 2,
    // Keep the original playing speed, but repeat the content in reversed if the content's duration
    // is less than
    // target duration.
    PAGTimeStretchModeRepeatInverted = 3,
  } PAGTimeStretchMode;
  