4.开发指南.md

@@ -77,6 +77,11 @@ DWVodVideoModel类是SDK中媒体的数据模型，无论是播放、下载都
  */
 @property(nonatomic, assign, readonly)NSInteger defaultSubtitle;
 
+/**
+ *  @brief 字幕模式，-1 无字幕 ，0 固定字号, 1 自适应模式
+ */
+@property(nonatomic, assign, readonly)NSInteger subtitlemodel;
+
 /**
  *  @brief 字幕1
  */
@@ -217,12 +222,12 @@ DWPlayerView包含的属性及方法如下：
 /**
  *  @brief 当前正在播放的媒体清晰度model，非在线视频返回nil。注意，在调用playVodViedo:withCustomId:方法后才可获取到此属性
  */
-@property(nonatomic,strong,readonly)DWVideoQualityModel * qualityModel;
+@property(nonatomic,strong,readonly,nullable)DWVideoQualityModel * qualityModel;
 
 /**
  *  @brief 返回当前播放的离线model，在线视频返回nil。注意，在调用playLocalVideo:方法后才可获取到此属性
  */
-@property(nonatomic,strong,readonly)DWDownloadModel * downloadModel;
+@property(nonatomic,strong,readonly,nullable)DWDownloadModel * downloadModel;
 
 /**
  *  @brief 当前播放时长
@@ -948,6 +953,16 @@ DWVideoQuestionModel数据及含义如下：
  */
 @property(nonatomic, assign, readonly)BOOL isDownload;
 
+/*!
+ * @method
+ * @abstract 计算自适应字幕字体大小
+ * @discussion 计算自适应字幕字体大小
+ * @param size 后台返回字幕字体大小
+ * @param playerWidth 当前播放器宽度，单位pt
+ * @result 计算后的字幕字体大小
+ */
++(CGFloat)getAdaptiveFontSize:(CGFloat)size PlayerWidth:(CGFloat)playerWidth;
+
 ```
 
 ## 1.7 授权验证功能
@@ -2138,7 +2153,7 @@ DWDownloadSessionManager是下载管理类，所有有关下载的操作，都
  * @param othersInfo 自定义字段，可为空
  * @result 创建成功返回DWDownloadModel对象，如果失败，返回nil
  */
-+(DWDownloadModel *)createDownloadModel:(DWVodVideoModel *)videoMdoel Quality:(NSString *)quality AndOthersInfo:(NSDictionary *)othersInfo;
++(DWDownloadModel *)createDownloadModel:(DWVodVideoModel *)videoMdoel Quality:(NSString *)quality AndOthersInfo:(nullable NSDictionary *)othersInfo;
 
 /*!
  * @method
@@ -2270,15 +2285,15 @@ DWDownloadSessionManager是下载管理类，所有有关下载的操作，都
  * @param totalBytesExpectedToWrite 文件的总大小。对于未完成的任务，必填
  * @result 若过渡成功，返回DWDownloadModel对象，否则返回nil
  */
--(DWDownloadModel *)migrateDownloadTask:(NSString *)loaclPath
-                            DownloadUrl:(NSString *)downloadUrl
-                              MediaType:(NSString *)mediaType
-                                Quality:(NSString *)quality
-                                   Desp:(NSString *)desp
+-(DWDownloadModel *)migrateDownloadTask:(nullable NSString *)loaclPath
+                            DownloadUrl:(nullable NSString *)downloadUrl
+                              MediaType:(nullable NSString *)mediaType
+                                Quality:(nullable NSString *)quality
+                                   Desp:(nullable NSString *)desp
                                  VRMode:(BOOL)vrMode
-                             OthersInfo:(NSDictionary *)othersInfo
-                                 UserId:(NSString *)userId
-                                VideoId:(NSString *)videoId
+                             OthersInfo:(nullable NSDictionary *)othersInfo
+                                 UserId:(nullable NSString *)userId
+                                VideoId:(nullable NSString *)videoId
                       TotalBytesWritten:(int64_t)totalBytesWritten
               TotalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite;
 ```
@@ -2378,6 +2393,11 @@ DWDownloadModel对象对应具体的下载任务。
  */
 @property(nonatomic, assign, readonly)NSInteger defaultSubtitle;
 
+/**
+ *  @brief 字幕模式，-1 无字幕 ，0 固定字号, 1 自适应模式
+ */
+@property(nonatomic, assign, readonly)NSInteger subtitlemodel;
+
 /**
  *  @brief 字幕1
  */
@@ -2541,18 +2561,19 @@ DWUploadSessionManager是上传管理类，所有有关上传的操作，都是
  * @param title 视频标题，不能为nil
  * @param description 视频描述
  * @param tag 视频标签
- * @param path 视频路径，不能为nil
+ * @param videoPath 视频路径，不能为nil
+ * @param categoryId 视频分类
  * @param notifyURL 通知URL
  * @result DWUploadModel对象
  */
 +(DWUploadModel *)createUploadModelWithUserId:(NSString *)userId
                                        Apikey:(NSString *)apikey
                                    VideoTitle:(NSString *)title
-                             VideoDescription:(NSString *)description
-                                     VideoTag:(NSString *)tag
+                             VideoDescription:(nullable NSString *)description
+                                     VideoTag:(nullable NSString *)tag
                                     VideoPath:(NSString *)videoPath
-                                   CategoryId:(NSString *)categoryId
-                                    NotifyURL:(NSString *)notifyURL;
+                                   CategoryId:(nullable NSString *)categoryId
+                                    NotifyURL:(nullable NSString *)notifyURL;
 
 /*!
  * @method