Introduction to several ways of iOS midrange video playback

In iOS design, audio and video playback is usually involved in most of the design process, so it is important to clearly understand and use the audio and video playback structure, the following are several commonly used audio and video playback methods:

(a) using the system-provided player, to play music that is less than 30s in length, usually in. caf,.aif,.wav format:

Create a System Playback object:

　　Audioservicescreatesystemsoundid (Cfurlref  infileurl, Systemsoundid  *outsystemsoundid);
    Play System ring tone
   Audioservicesplaysystemsound (ksystemsoundid_vibrate); For vibration-enabled devices, you can set the vibration state　
   Audioservicesdisposesystemsoundid (Self.soundsystemid);//non-arc conditions, after the completion of the function, the need for manual destruction (ii)

(ii) Use Avaudioplayer to play a file or a music file in the cache:

It is characterized by: can play any length of time, the file address in the local file or cache, can realize the loop play, can play multiple songs simultaneously and realize synchronization, can achieve fine control.

Nsurl *soudfileurl = [[NSBundle mainbundle] Urlforresource:@"Qian female Ghost"Withextension:@"mp3"];//creates an Error object, which is defined here as a pointer object, because the parameters required by the API interface are outgoing parameters and pointers.Nserror *error =Nil; Self.audioplayer= [[Avaudioplayer alloc] Initwithcontentsofurl:soudfileurl error:&ERROR]; Self.audioPlayer.numberOfLoops=2;//if the error value is not empty, it means that the initialization of the Audioplayer object fails, and the failure processing is required    if(Error! =Nil) {NSLog (@"INIT audioplay Faile. error:%@", error);    } [Self.audioplayer Preparetoplay]; [Self.audioplayer play];

(iii) Play audio files with Avplayer implementation

The biggest difference between playing with the above is that he can play local music and remote music, which is network music.

@" http://zhangmenshiting.baidu.com/data2/music/119358766/11794803954000128.mp3?xcode= 055849B238EF1D51897273D786699F632C0420DE8B6192FF"*soundurl =*player= [[Avplayer Alloc] Initwithurl:soundurl];

(iv) video files that use MPMoviePlayerController to play video local or network streams

    Nsurl *myurl = [[NSBundle mainbundle] Urlforresource:@ "s6t9u6014" withextension:@ "  mp4"];     = [[MPMoviePlayerController alloc] initwithcontenturl:myurl];    [Self.player Preparetoplay];    [Self.view AddSubview:self.player.view];    [Self.player.view setFrame:self.view.bounds];    [Self.player play];

(v) Use Mpmovieplayerviewcontroller to play local or network streaming video files

Nsurl *myurl = [Nsurl urlwithstring:@ "http://v.youku.com/player/getRealM3U8/vid/XNzA3NzY3MDgw/type/ video.m3u8"*player =    = uimodaltransitionstylecoververtical;[ Self Presentviewcontroller:player animated:yes completion:nil];