IOS

视频

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版本/作者/日期	修改内容
1.0/Sandy/2015-09-24	初版

4.视频

条件：摄像机连接成功

语法：

1）函数

-(int)playVideo:(unsigned int)streamIndex; //播放视频
参数：(unsigned int)streamIndex：播放哪一路视频
-(void)stopVideo;//关闭视频

2）消息通知

FOUNDATION_EXPORT NSString* const IPCamera_Video_Status_Changed_Notification;//视频状态改变
FOUNDATION_EXPORT NSString* const IPCamera_Video_Frame_Notification;  //视频图像数据

3）视频状态改变消息回调

-(void)IPCamera_response_function:(NSNotification*)note;

IPCamera.h宏定义了两种注册消息的方法

#define ADD_IPCAMERA_RESPONSE_WITHOUT_ARG(notice_name) \
    [[NSNotificationCenter defaultCenter] addObserver: self selector:               @selector(IPCamera_response_function:) name: notice_name object: nil]

#define ADD_IPCAMERA_RESPONSE_WITH_ARG(notice_name,camera_object) \
    [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(IPCamera_response_function:) name: notice_name object: camera_object]

示列：

1）注册消息通知

ADD_IPCAMERA_RESPONSE_WITH_ARG( IPCamera_Video_Status_Changed_Notification, cam_)

2）播放视频

[cam_ playVideo: 0 ];//播放第一路视频

3）关闭视频

[cam_ stopVideo]

4）视频消息通知

-(void)IPCamera_response_function:(NSNotification*)note
{
    //视频图像状态改变
    if( [note.name isEqualToString:IPCamera_Video_Status_Changed_Notification ])
    {
        NSLog(@"视频状态改变"); 

     if( STATUS_STOPPED == cam_.video_status )
        {
            printf("视频关闭");
        }
        else if( STATUS_REQUESTING == cam_.video_status )
        {
            printf("请求视频");
        }
        else if( STATUS_PLAYING == cam_.video_status )
        {
            printf("视频播放");
        }
    }
    //视频数据通知
    if( [note.name isEqualToString:IPCamera_Video_Frame_Notification ]){
    //如果是第一个画面，可能你需要根据不同的机形调整视图比列 16:9 或4
        UIImage* image = [ note.userInfo objectForKey:@"image"];   
        m_video_image.imageView_.image = image;
}
}

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视频