實施章節支援

您可以通過以下方式定義和跟蹤基於TVSDK的應用程式中視頻跟蹤的章節：

• 預設章節，由TVSDK內部管理。

  本章定義為每個廣告中斷之間的時間。 例如，預卷和中卷之間的時間定義為第一章。

• 自定義章節，這些章節由應用程式管理，並基於CMS資料或應用程式用於定義章節的其他方式。

  定義和跟蹤預設或自定義章節。

  // First, enable chapter tracking by setting the boolean 'enableChapterTracking' to true:
  
      vaTrackingMetadata.enableChapterTracking = YES;
  
  // For custom chapter definitions, provide an array of chapters through the metadata:
  // For example, 3 chapters of 60 second duration each:
  
      NSMutableArray *chapters = [[[NSMutableArray alloc] init] autorelease];
  
      int chapterDuration = 60;
      for (int i = 0; i < 3; i++)
      {
          PTVideoAnalyticsChapterData *chapterData =
            [[[PTVideoAnalyticsChapterData alloc] init] autorelease];
          chapterData.name = [NSString stringWithFormat:@"chapter_%d", (i+1)];
          chapterData.range =
            CMTimeRangeMake(CMTimeMakeWithSeconds(i * chapterDuration, 10000),
            CMTimeMakeWithSeconds(chapterDuration, 10000));
  
          [chapters addObject:chapterData];
      }
  
      vaTrackingMetadata.chapters = chapters;
  
  // For default chapters, the application must not set custom chapters on the tracking metadata
  // and simply enable chapters to be tracked by setting the boolean value as defined above.
  

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