最近在做P2P的项目，关于视频监控直播方面的，用到了Peergine的P2P视频直播模块，下面总结一下爬坑经历。
sdk介绍
关于SDK的介绍，在官网有详细介绍，你可以现在Peergine的SDK来看，里边包括了文档和demo(如下图)
SDK安装包中附带了两个小demo，一个是多源音视频播放端demo，一个是单源音视频播放端demo。为了更好的接入到项目中，我把demo程序修改了一下。
准备工作
1.将安装包中的Include和Lib这两个文件夹添加到项目中
2.添加系统库文件
libiconv.tbd: 系统自带多语言字符集库
libz.1.2.5.tbd:系统自带zip压缩库
libresolv.tbd:系统自带的域名解析库
依赖框架库（如下图）
3.将Appdelegate.m修改为Appdelegate.mm;
4.在BuildSetting中修改Enable BitCode为NO;
代码部分
VideoVideController.h
#import <UIKit/UIKit.h>
#import "pgLibLiveMultiRender.h"
@class VideoViewController;
@interface DemoLiveEvent : pgLibLiveMultiRenderEvent
{
VideoViewController *m_App;
}
-(id)init:(VideoViewController *)App;
-(void)OnEvent:(NSString *)sAction data:(NSString *)sData capid:(NSString *)sCapID;
@end
@interface VideoViewController : UIViewController
{
DemoLiveEvent* m_LiveEvent;
pgLibLiveMultiRender* m_Live;
UIView* m_pView;
NSString* m_sCapID;
NSString* m_sReplysPeer;
NSString* m_sReplysFile;
BOOL m_bNeedCallback;
BOOL m_bIsReplying;
BOOL m_bTransfering ;
int m_iMethID;
NSString* filePath;
}
static void MyAudioSessionInterruptionListener(void * inClientData, UInt32 inInterruptionState);
-(void)OnEventProc:(NSString*)sAction data:(NSString*)sData capID:(NSString*)sCapID;
@end
VideoViewController.m
#import "VideoViewController.h"
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVAudioSession.h>
#import "pgLibLiveMultiView.h"
@implementation DemoLiveEvent
-(id)init:(VideoViewController*) App
{
if (self = [super init]) {
m_App = App;
}
return self;
}
-(void)OnEvent:(NSString *)sAction data:(NSString *)sData capid:(NSString *)sCapID
{
[m_App OnEventProc:sAction data:sData capID:sCapID];
}
@end
@interface VideoViewController ()
@end
初始化函数
(instancetype)init
{
self = [super init];
if (self) {
m_LiveEvent = [[DemoLiveEvent alloc]init:self];
m_Live = [[pgLibLiveMultiRender alloc]init:m_LiveEvent];
m_pView = 0;
m_sCapID = @"";
}
return self;
}
创建视频view。注意 这里的m_pView不能够用xib创建，否则会显示不出图像。
//Crerte live view。
int iErr = [m_Live Initialize:@"ios_test" pass:@"" svrAddr:@"connect.peergine.com:7781" relayAddr:@"" p2pTryTime:1 initParam:@""];
if (iErr != 0) {
NSLog(@"pgLibLiveMulti:initialize failed ! iErr = %d",iErr);
NSString *sInfo = [NSString stringWithFormat:@"Initialize failed! iErr=%d",iErr];
[self showAlert:sInfo];
}
m_pView = [pgLibLiveMultiView Get:@"View0"];
m_pView.frame = CGRectMake(0, 120, SCREEN_WIDTH, 350);
[self.view addSubview:m_pView];
NSError *error = nil;
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker error:&error];
[audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:&error];
[audioSession setActive:YES error:&error];
//定义记录文件全名以及路径的字符串filePath
NSString *documentDirectory = [self GetDocDir];
filePath = [documentDirectory stringByAppendingPathComponent:@"pgtest"];
//查找文件 如果不存在，就创建一个文件
NSFileManager *fileManager = [NSFileManager defaultManager];
if (![fileManager fileExistsAtPath:filePath]) {
NSLog(@"File no exsit, create new one");
[fileManager createFileAtPath:filePath contents:nil attributes:nil];
}
开始连接与取消连接
//开始连接 video 和audio
-(void)startConnect{
m_sCapID = M_SCAPID;
[m_Live Connect:m_sCapID];
[m_Live VideoStart:m_sCapID videoID:0 param:@"" nodeView:m_pView];
[m_Live AudioStart:m_sCapID audioID:0 param:@""];
}
//取消连接
-(void)stopConnect{
[m_Live AudioStop:m_sCapID audioID:0];
[m_Live VideoStop:m_sCapID videoID:0];
[m_Live Disconnect:m_sCapID];
}
清理P2P直播实例
如果音频视频已经打开，必须先关闭，然后在执行清理实例操作。
if (m_pView != nil) {
[pgLibLiveMultiView Release:m_pView];
m_pView = nil;
}
[m_Live Clean];
调用其他业务功能函数，根据实际调用的具体API
MessageSemd:
最后附demo示例
