[原]关于在 iOS 中支持 DLNA

目前国内的视频播放器中，支持 DLNA 播放比较好的是：腾讯视频。

刚才反编了一下他们的代码，发现使用了一个开源库，

地址：https://github.com/FuruyamaTakeshi/DLNA

并且在这个库的基础了做了一层封装，包含如下几个类：

DLNAController:

 @class CGUpnpAvController, CGUpnpAvRenderer, QLUpnpAVVolumeInfo, NSMutableArray, QLUpnpAVPositionInfo, NSString, NSTimer;
 @protocol DLNAControllerDelegate;

 @interface DLNAController : XXUnknownSuperclass <CGUpnpControlPointDelegate> {
 @private
     dispatch_queue_s* _playQueue;    // 4 = 0x4
     dispatch_queue_s* _searchQueue;    // 8 = 0x8
     CGUpnpAvRenderer* _dlnaPlayingRender;    // 12 = 0xc
     CGUpnpAvRenderer* _dlnaSelectedRender;    // 16 = 0x10
     CGUpnpAvController* _upnpAvController;    // 20 = 0x14
     NSMutableArray* _dlnaRenders;    // 24 = 0x18
     NSTimer* _timerLoadInfos;    // 28 = 0x1c
     BOOL _isSettingVolume;    // 32 = 0x20
     BOOL _isSettingSeek;    // 33 = 0x21
     id<DLNAControllerDelegate> delegate;    // 36 = 0x24
     float _trackDuration;    // 40 = 0x28
     float _curPlayTime;    // 44 = 0x2c
     float _volumePercentage;    // 48 = 0x30
     NSString* _curRenderName;    // 52 = 0x34
     unsigned _fileSize;    // 56 = 0x38
     QLUpnpAVPositionInfo* _positionInfo;    // 60 = 0x3c
     QLUpnpAVVolumeInfo* _volumeInfo;    // 64 = 0x40
     NSString* _curTitle;    // 68 = 0x44
 }
 @property(retain) QLUpnpAVPositionInfo* positionInfo;    // G=0x1ecead; S=0x1ecec5;
 @property(retain) QLUpnpAVVolumeInfo* volumeInfo;    // G=0x1ecee9; S=0x1ecf01;
 @property(readonly, assign) int dlnaRendersCount;    // G=0x1eabf5;
 @property(readonly, assign) float volumePercentage;    // G=0x1eae41;
 @property(readonly, assign) float curPlayTime;    // G=0x1ead59;
 @property(readonly, assign) float trackDuration;    // G=0x1eadcd;
 @property(readonly, assign) NSString* curRenderName;    // G=0x1eacc1;
 @property(copy) NSString* curTitle;    // G=0x1ecf25; S=0x1ecf3d;
 @property(assign) unsigned fileSize;    // G=0x1ece81; S=0x1ece95;
 @property(assign) id<DLNAControllerDelegate> delegate;    // G=0x1ece55; S=0x1ece69;
 +(id)sharedDLNAController;    // 0x1ea329
 -(void)didFindRendersMain:(id)main;    // 0x1ecdfd
 -(void)maitainConnectionMain:(id)main;    // 0x1ecdb5
 -(void)loseConnectionMain:(id)main;    // 0x1eccc1
 -(void)mainPlayStop:(id)stop;    // 0x1ecc65
 -(void)mainPlayFailed:(id)failed;    // 0x1ecc1d
 -(void)mainPlayDown:(id)down;    // 0x1ecbc1
 -(BOOL)setVolume:(float)volume skipIfBusy:(BOOL)busy;    // 0x1eca55
 -(BOOL)seek:(double)seek;    // 0x1ec8f9
 -(BOOL)quit;    // 0x1ec719
 -(BOOL)stop;    // 0x1ec5ed
 -(BOOL)pause;    // 0x1ec4d1
 -(BOOL)play;    // 0x1ec341
 -(BOOL)isPlaying;    // 0x1ec305
 -(void)controlPoint:(id)point deviceInvalid:(id)invalid;    // 0x1ec301
 -(void)controlPoint:(id)point deviceUpdated:(id)updated;    // 0x1ec2fd
 -(void)controlPoint:(id)point deviceRemoved:(id)removed;    // 0x1ebfa1
 -(void)controlPoint:(id)point deviceAdded:(id)added;    // 0x1ebc61
 -(void)searchReaders:(BOOL)readers;    // 0x1eb8a9
 -(void)connection:(id)connection didReceiveResponse:(id)response;    // 0x1eb785
 -(void)connectionDidFinishLoading:(id)connection;    // 0x1eb76d
 -(void)connection:(id)connection didFailWithError:(id)error;    // 0x1eb719
 -(void)playOnThreadWithInfo:(id)info;    // 0x1eb4e5
 -(void)beginPlayDLNAWithUrl:(id)url;    // 0x1eb225
 -(void)playURL:(id)url;    // 0x1eafc5
 -(void)setRenderAtIndex:(int)index;    // 0x1eaea5
 -(id)getRenderAtIndex:(int)index;    // 0x1eaafd
 -(void)loadInfoOfDLNA;    // 0x1ea83d
 -(void)stopTimers;    // 0x1ea80d
 -(void)startTimers;    // 0x1ea7ad
 -(void)clearAllInfos;    // 0x1ea76d
 -(void)clearTimerInfo;    // 0x1ea71d
 -(void)clearPlayInfo;    // 0x1ea5e5
 -(id)init;    // 0x1ea539
 -(void)dealloc;    // 0x1ea411
 @end

DLNAControllerDelegate

 @protocol DLNAControllerDelegate <NSObject>
 -(void)dlnaControllerdidStoped:(id)stoped;
 -(void)dlnaControllerdidMaitainConnection:(id)connection;
 -(void)dlnaControllerdidLoseConnection:(id)connection;
 -(void)dlnaControllerdidFailedToPlay:(id)play;
 -(void)dlnaControllerdidStartToPlay:(id)play;
 -(void)dlnaController:(id)controller didFindRenders:(id)renders;
 @end

DLNAModel

 @protocol DLNAModelDelegate;

 @interface DLNAModel : XXUnknownSuperclass {
 @private
     id<DLNAModelDelegate> _delegate;    // 4 = 0x4
 }
 @property(assign, nonatomic) id<DLNAModelDelegate> delegate;    // G=0x1d2409; S=0x1d2419;
 -(void)request:(id)request didFailLoadWithError:(id)error;    // 0x1d23c9
 -(void)requestDidFinishLoad:(id)request;    // 0x1d2045
 -(void)sendRequestWithVideoID:(id)videoID isPay:(BOOL)pay;    // 0x1d1ef5
 @end

DLNAModelDelegate

@protocol DLNAModelDelegate <NSObject>
-(void)DLNAModelDelegateRequestDidFail:(id)dlnamodelDelegateRequest;
-(void)DLNAModelDelegateRequestDidSuccess:(id)dlnamodelDelegateRequest urlString:(id)string;
@end

DLNAPlayBkgView

@class UIActivityIndicatorView, UILabel;

@interface DLNAPlayBkgView : XXUnknownSuperclass {
@private
    UILabel* _tmpLabel;    // 48 = 0x30
    UIActivityIndicatorView* _tIndicator;    // 52 = 0x34
}
@property(retain, nonatomic) UILabel* tmpLabel;    // G=0x1d0c25; S=0x1d0c35;
@property(retain, nonatomic) UIActivityIndicatorView* tIndicator;    // G=0x1d0c59; S=0x1d0c69;
-(void)setLableTip:(id)tip showActivity:(BOOL)activity;    // 0x1d0a5d
-(id)initWithFrame:(CGRect)frame;    // 0x1d06c1
-(void)dealloc;    // 0x1d0669
@end

DLNASelectorView

@class UITableView, UIView;
@protocol DLNASelectorViewDelegate;

@interface DLNASelectorView : XXUnknownSuperclass <UITableViewDataSource, UITableViewDelegate> {
@private
    UIView* _dlnaSearchingView;    // 48 = 0x30
    UITableView* _dlnaTableView;    // 52 = 0x34
    id<DLNASelectorViewDelegate> _delegate;    // 56 = 0x38
    UIView* _tContentView;    // 60 = 0x3c
    UIView* _noneDLNATipView;    // 64 = 0x40
}
@property(retain, nonatomic) UIView* dlnaSearchingView;    // G=0x1d16c9; S=0x1d1e35;
@property(retain, nonatomic) UITableView* dlnaTableView;    // G=0x1d15dd; S=0x1d1e59;
@property(retain, nonatomic) UIView* noneDLNATipView;    // G=0x1d12cd; S=0x1d1ed1;
@property(retain, nonatomic) UIView* tContentView;    // G=0x1d1e9d; S=0x1d1ead;
@property(assign, nonatomic) id<DLNASelectorViewDelegate> delegate;    // G=0x1d1e7d; S=0x1d1e8d;
-(void)tableView:(id)view didSelectRowAtIndexPath:(id)indexPath;    // 0x1d1dc1
-(int)tableView:(id)view numberOfRowsInSection:(int)section;    // 0x1d1d8d
-(id)tableView:(id)view cellForRowAtIndexPath:(id)indexPath;    // 0x1d1bf1
-(void)dlnaCloseDown:(id)down;    // 0x1d1bc5
-(void)dlnaRefreshDown:(id)down;    // 0x1d1b15
-(void)showSearchView;    // 0x1d1ab9
-(void)refreshSelectorTable;    // 0x1d18dd
-(id)initWithFrame:(CGRect)frame;    // 0x1d0d11
-(void)dealloc;    // 0x1d0c91
@end

@protocol DLNASelectorViewDelegate <NSObject>
-(void)DLNASelectorViewSelectedRender:(id)render;
-(void)DLNASelectorViewWillClose:(id)dlnaselectorView;
@end

QLUpnpAVPositionInfo:

@class CGUpnpAction;

@interface QLUpnpAVPositionInfo : XXUnknownSuperclass {
@private
    float _trackDuration;    // 4 = 0x4
    float _absTime;    // 8 = 0x8
    float _relTime;    // 12 = 0xc
    CGUpnpAction* _upnpAction;    // 16 = 0x10
}
@property(retain, nonatomic) CGUpnpAction* upnpAction;    // G=0x1f1eb5; S=0x1f1ec5;
@property(readonly, assign, nonatomic) float relTime;    // G=0x1f1ea5;
@property(readonly, assign, nonatomic) float absTime;    // G=0x1f1e95;
@property(readonly, assign, nonatomic) float trackDuration;    // G=0x1f1e85;
-(void)dealloc;    // 0x1f1e41
-(id)initWithAction:(id)action;    // 0x1f1d65
@end

QLUpnpAVVolumeInfo

@class CGUpnpAction;

@interface QLUpnpAVVolumeInfo : XXUnknownSuperclass {
@private
    float _currentVolumePercentage;    // 4 = 0x4
    CGUpnpAction* _upnpAction;    // 8 = 0x8
}
@property(retain, nonatomic) CGUpnpAction* upnpAction;    // G=0x1ed05d; S=0x1ed06d;
@property(readonly, assign, nonatomic) float currentVolumePercentage;    // G=0x1ed04d;
-(void)dealloc;    // 0x1ed009
-(id)initWithAction:(id)action;    // 0x1ecf61
@end

找时间阅读下汇编代码，写出一个开源版本。^_^