播放本地m3u8流媒体

要播放m3u8流媒体

搭建本地服务器：

1. 使用CocoaHTTPServer 生产服务器，指定某文件夹为服务器根目录；

2.启动指定端口的服务器；

3.HTTPServer 为 单例对象的属性，否则服务器启动完就会关闭，用单例就可以将HTTPServer对象放到静态栈里面；

下载m3u8文件：

1.用get请求将 xxxx.m3u8文件下载到服务器根目录下的一个文件夹中；

2.使用M3U8Parser框架解析 http://xxxxx/xxxx.m3u8文件

3.根据解析结果，将m3u8文件里面的.ts文件下载到与xxxx.m3u8文件同一目录下

4.下载.ts文件时使用 get请求，将 http://xxxxx/xxxx.m3u8的http://xxxxx/aaa.ts下载

播放m3u8文件

1.简单点的可以使用 MPMoviePlayerViewController 播放 根服务器下的xxxx.m3u8文件

   

代码：

注：pod ‘M3U8Parser'

       pod ‘CocoaHTTPServer'

HTTPServerManager.h

#import <Foundation/Foundation.h>
#import <HTTPServer.h>
@interface HTTPServerManager : NSObject
{
    HTTPServer *httpServer;
}
+ ( instancetype )shareInstance;

- ( void )startHTTPServer;

- (HTTPServer *)returnHTTPServer;

@end

////////////////////////////////////

HTTPServerManager.m

#import "HTTPServerManager.h"

@implementation HTTPServerManager
+ ( instancetype )shareInstance
{
    static HTTPServerManager *manager;
    static dispatch_once_t once;
    if (!manager) {
        dispatch_once (&once, ^{
          
            manager = [[ HTTPServerManager alloc ] init ];
           
        });
    }
   
    return manager;
}

- ( NSString *)webRoot
{
    NSString *web = [ NSHomeDirectory () stringByAppendingPathComponent : @"Documents/web" ];
   
    NSFileManager *fm = [ NSFileManager defaultManager ];
   
    if (![fm fileExistsAtPath :web]) {
        [fm createDirectoryAtPath :web withIntermediateDirectories : YES attributes : nil error : nil ];
        NSLog ( @" 服务器艮目录是 :%@" ,web);
       
    }
   
    return web;
}

- ( void )startHTTPServer
{
    httpServer = [[ HTTPServer alloc ] init ];
    [ httpServer setType : @"_http._tcp." ];
    [ httpServer setPort : 30000 ];
    [ httpServer setDocumentRoot :[ self webRoot ]];
   
    NSError *error;
    if ([ httpServer start :&error]) {
       
        NSLog ( @"HttpServer is started, port is :%hu" ,[ httpServer listeningPort ]);
        NSLog ( @" 服务器请求地址是 :http://127.0.0.1:30000" );
       
    } else {
       
        NSLog ( @"%@" ,error. description );
    }
}

- ( HTTPServer *)returnHTTPServer
{
    if ( httpServer == nil ) {
        [ self startHTTPServer ];
    }
    return httpServer ;

}

@end

/////////////////////////////////////////

PlayM3U8ViewController.h

#import <UIKit/UIKit.h>

@interface PlayM3U8ViewController : UIViewController

@end

////////////////////////////

PlayM3U8ViewController.m

#import "PlayM3U8ViewController.h"
#import <MediaPlayer/MediaPlayer.h>
#import <AVFoundation/AVFoundation.h>
#import <AVKit/AVKit.h>
#define KURL @ "http://127.0.0.1:30000/a/output.m3u8"
@interface PlayM3U8ViewController ()

@end

@implementation PlayM3U8ViewController

- ( void )viewDidLoad {
    [ super viewDidLoad ];
   
    self . view . backgroundColor = [ UIColor whiteColor ];
   
    NSURL *localM3U8Url = [ NSURL URLWithString : @"http://127.0.0.1:30000/a/output.m3u8" ];
    MPMoviePlayerViewController *mpc = [[ MPMoviePlayerViewController alloc ] initWithContentURL :localM3U8Url];
    [ self presentViewController :mpc animated : YES completion :^{
    }];
   

}

@end

///////////////////////////////////////

M3u8DownloadManager.h

#import <Foundation/Foundation.h>

@interface M3u8DownloadManager : NSObject

/*
 * 1. 搭建服务器 - 创建文件夹
 * 2. 下载 m3u8 文件

 * 3.解析下载A:m3u8文件

 * 4.根据A:m3u8文件列表下载.ts文件

 * 5. 将 .ts 文件按 m3u8 文件列表组合或拼接

 * 6. 将 .ts 文件保存到与A :m3u8 同一目录下

 */

// 根据文件路径下载 .ts 文件 以及 创建 m3u8 列表
- ( void )downloadM3u8WithFile:( NSString *)URL;

@end

///////////////////////////////////////

M3u8DownloadManager.m

//
//  M3u8DownloadManager.m
//  DownloadM3u8
//
//

#import "M3u8DownloadManager.h"
#import "URLConnectionGet.h"

#import <M3U8Kit.h>
#import <NSString+m3u8.h>

@implementation M3u8DownloadManager
{
    NSMutableString *m3u8List;
    NSString        *fileCompoment;
    NSString        *fileFolder;
    NSMutableArray  *urls;
    NSMutableArray  *names;
}

- ( id )init
{
    self = [ super init ];
   
    if ( self ) {
        urls   = [[ NSMutableArray       alloc ] init ];
        names = [[ NSMutableArray       alloc ] init ];
    }
   
    return self ;
}


// 根据文件路径下载 .ts 文件 以及 创建 m3u8 列表
- ( void )downloadM3u8WithFile:( NSString *)URL
{
    fileCompoment = URL. lastPathComponent ;
   
    [[[ URLConnectionGet alloc ] init ] downloadDataWithUrlString :URL finished :^( NSData *data) {
       
        // 下载得到 m3u8 列表
        m3u8List = [[ NSMutableString alloc ] initWithData :data encoding : NSUTF8StringEncoding ];
       
        if ( m3u8List ) {
            [ self parser : m3u8List withURL :URL];
        }
       
    } failed :^( NSString *errorMessage) {
       
        NSLog ( @" 列表下载失败 " );
       
    }];
}

// 解析 m3u8 列表
//http://devimages.apple.com/iphone/samples/bipbop/gear1/prog_index.m3u8
- ( void )parser:( NSString *)txt withURL:( NSString *)URL
{
    M3U8SegmentInfoList *list = [txt m3u8SegementInfoListValueRelativeToURL :[ NSURL URLWithString :URL]];
   
    NSLog ( @"%ld" ,list.count);
   
    // 解析列表
    for ( int i = 0 ; i < list.count; i++) {
       
        M3U8SegmentInfo *info = [list segmentInfoAtIndex:i];
        NSLog( @"%@" ,info.mediaURL);
       
        // 获取文件名
        // 文件名
        [names addObject:info.URI];
       

        // 整个请求地址
        NSString *pre = [URL stringByReplacingOccurrencesOfString:URL.lastPathComponent withString: @"" ];
        NSString *tsUrl = [NSString stringWithFormat: @"%@%@" ,pre,info.URI];
        [urls addObject:tsUrl];
    }
   
    // 创建一个服务器下的文件名对应的文件夹
    NSArray *items = [URL.lastPathComponent componentsSeparatedByString: @"." ];
    fileFolder = [NSString stringWithFormat: @"%@/Documents/web/%@" ,NSHomeDirectory(),items[ 0 ]];
    NSFileManager *fm = [NSFileManager defaultManager];
    [fm createDirectoryAtPath:fileFolder withIntermediateDirectories: YES attributes: nil error: nil ];
   
    // 创建 m3u8 列表
    [ self createM3u8ListFile:[fileFolder copy]];
   
    NSLog( @"%@" ,fileFolder);
   
    // 开始下载
    [ self downloadTS:[fileFolder copy]];
}

- ( void )downloadTS:(NSString *)savePath
{
   
   
    if (urls.count> 0 ) {
       
         [ self requestWithIndex: 0 savePath:savePath];
    }
  
}

- ( void )requestWithIndex:( int )index savePath:(NSString *)savePath
{
    __block int blockIndex = index;
   
    __weak NSMutableArray *weakNames = names;
   
    __weak NSString *weakSavePath = savePath;
   
    __weak M3u8DownloadManager *weakSelf = self ;
   
    [[URLConnectionGet alloc] downloadDataWithUrlString:urls[blockIndex] finished:^(NSData *data) {
       
        NSString *filePath = [NSString stringWithFormat: @"%@/%@" ,weakSavePath,weakNames[blockIndex]];
       
        NSMutableData *currentData = [NSMutableData dataWithContentsOfFile:filePath];
       
        if (currentData == nil ) {
            currentData = [[NSMutableData alloc] init];
        }
       
        [currentData appendData:data];
       
        BOOL success = [currentData writeToFile:filePath atomically: YES ];
               
        if (success) {
           
            blockIndex += 1 ;
           
            if (blockIndex < urls.count) {
               
                [weakSelf requestWithIndex:blockIndex savePath:weakSavePath];
               
            }
           
        }
       
    } failed:^(NSString *errorMessage) {
       
        NSLog( @"%@" ,errorMessage);
       
    }];
}

// 创建 m3u8 列表
- ( void )createM3u8ListFile:(NSString *)savePath
{
    for ( int i = 0 ; i < urls.count; i++) {
        NSString *fileName = names[i];
        NSString *URI = [NSString stringWithFormat: @"%@/%@" ,savePath,fileName];
        [m3u8List stringByReplacingOccurrencesOfString:fileName withString:URI];
    }
   
    // 将 m3u8 写到文件夹
    [ self writeM3u8List];
}

- ( void )writeM3u8List
{
    NSData *data = [m3u8List dataUsingEncoding: NSUTF8StringEncoding];
    NSString *fileName = [fileCompoment componentsSeparatedByString: @"." ][ 0 ];
    NSString *filePath = [NSString stringWithFormat: @"%@/Documents/web/%@/%@" ,NSHomeDirectory(),fileName,fileCompoment];
   
   BOOL is = [data writeToFile:filePath atomically: YES ];
   
    NSLog( @"%d" ,is);
}

@end