AvPlayer streaming, all the metadata information are in timedMetadata? - ios

I'm creating an ios app with a streaming player maded with AvPlayer. This is my code:
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self InitPlayer];
[self ReadMetaData];
}
-(void)InitPlayer{
NSURL *url = [[NSURL alloc] initWithString:#"http://www.fakeurl.com/stream"];
// create a player view controller
self.player = [AVPlayer playerWithURL:url];
player.closedCaptionDisplayEnabled = NO;
}
-(void)ReadMetaData{
[self.player.currentItem addObserver:self forKeyPath:#"timedMetadata" options:NSKeyValueObservingOptionNew context:nil];
}
- (void) observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object
change:(NSDictionary*)change context:(void*)context {
if ([keyPath isEqualToString:#"timedMetadata"])
{
AVPlayerItem* playerItem = object;
for (AVMetadataItem* metadata in playerItem.timedMetadata)
{
if([metadata.commonKey isEqualToString:#"title"]){
TitleLabel.text=metadata.stringValue;
}
}
}
}
With this code i can successfully play and pause the stream. I can also print the title of the track.
If i try to log the timedMetadata with something like this:
NSLog(#"%#",player.currentItem.timedMetadata);
I retrive that:
"<AVMetadataItem: 0x15649500, identifier=common/title, keySpace=comn, key class = __NSCFConstantString, key=title, commonKey=title, extendedLanguageTag=(null), dataType=(null), time={21888/44100 = 0.496}, duration={INVALID}, startDate=(null), extras={\n}, value=Keepin-'fake song title>"
Now my question is: for that specific stream url the timedMetadata i logged are the only metadata i can retrive? If yes how i can achive a more complex player type (something like "go to next track button","go to previous track button","an history of tracks",ecc...) ? That's the first time i work with stream data and in my expectations there was a lot of information in audio metadata. In real life seems i can get only the track title. There's a problem with my code or the stream source is poor in metadata info?

I tried to find best solution to get metadata from AVPlayer and found it:
-(IBAction) BtnGoClick:(id)sender {
NSURL *url = [[NSURL alloc] initWithString:#"http://cast.loungefm.com.ua/loungefm"];
[self setupAVPlayerForURL:url];
}
-(void) setupAVPlayerForURL: (NSURL*) url {
AVAsset *asset = [AVURLAsset URLAssetWithURL:url options:nil];
AVPlayerItem *anItem = [AVPlayerItem playerItemWithAsset:asset];
player = [AVPlayer playerWithPlayerItem:anItem];
[player addObserver:self forKeyPath:#"status" options:0 context:nil];
[anItem addObserver:self forKeyPath:#"timedMetadata" options:NSKeyValueObservingOptionNew context:NULL];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == player && [keyPath isEqualToString:#"status"]) {
if (player.status == AVPlayerStatusFailed) {
NSLog(#"AVPlayer Failed");
} else if (player.status == AVPlayerStatusReadyToPlay) {
NSLog(#"AVPlayer Ready to Play");
} else if (player.status == AVPlayerItemStatusUnknown) {
NSLog(#"AVPlayer Unknown");
}
}
if ([keyPath isEqualToString:#"timedMetadata"])
{
AVPlayerItem* playerItem = object;
for (AVMetadataItem* metadata in playerItem.timedMetadata)
{
if([metadata.commonKey isEqualToString:#"title"]){
NSLog(#"%#",metadata.stringValue);
}
}
}
}
Result:

Related

How to force AVPlayer to fail when AVAssetResourceLoadingRequest's finishLoadingWithError(err) is called

I want to force AVPlayer to throw the player error, either through the playerFailedToReachEnd notification or observe player.status via KVO, when during the process of loading resource request via AVAssetResourceLoader that the request is finished loading with error.
It should not do the manual playback stop on AVPlayer to avoid dealing with the race condition between the manual stop and the KVO/notifications
Manual playback stop on AVPlayer when error occurred is refrained to avoid race condition.
Tried the part to return the callback 'resourceLoader:shouldWaitForLoadingOfRequestedResource:' to return NO it doesn't make AVPlayer change state to Failure nor does it send notification about player failure
#implementation AssetLoader <AVAssetResourceLoaderDelegate>
- (AVPlayerItem *)setupLoader {
NSURL *playbackUrl = [NSURL URLWithString:#"example-url"];
AVURLAsset *asset = [AVURLAsset URLAssetWithURL:playbackUrl options:nil];
[asset.resourceLoader setDelegate:self queue:_sample_queue];
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:asset];
return playerItem;
}
- (BOOL)resourceLoader:(AVAssetResourceLoader *)resourceLoader shouldWaitForLoadingOfRequestedResource:(AVAssetResourceLoadingRequest *)loadingRequest {
if ([url.scheme isEqual:#"skd"] == NO) {
QPLogError(#"Unexpected url scheme: %#", url.absoluteString);
return NO;
}
LicenseAction *action = [[LicenseAction alloc] initWithLoadingRequest:loadingRequest];
[action execute:^(NSData *ckcData, NSError *error) {
if (error) {
[loadingRequest finishLoadingWithError:error]; //This should prompt AVPlayer to fail
} else {
[loadingRequest.dataRequest respondWithData:ckcData];
[loadingRequest finishLoading];
}
}];
return YES;
}
...
#end
#implementation Player {
AVPlayer *_player;
}
- (void)prepare {
[_player replaceCurrentItemWithPlayerItem:playerItem];
NSKeyValueObservingOptions options = (NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld | NSKeyValueObservingOptionInitial);
[_player addObserver:self forKeyPath:#"status" options:options context:&QPClearPlayerAVPlayerKVOContext];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(playerItemFailedToEnd:) name:AVPlayerItemFailedToPlayToEndTimeNotification object:_player.currentItem];
}
- (void)stopWithError {
...
[self reportPlayerError];
}
...
- (void)playerItemFailedToEnd:(NSNotification *)notification {
...
[self reportPlayerError];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if(object == _player && keyPath == #"status") {
...
if (_player.status == AVPlayerStatusFailed) {
[self reportPlayerError];
}
}
}
...
#end
Expected
upon invoking AVAssetResourceLoadingRequest.finishLoadingWithError() that the AVPlayer would send a failed notification or KVO status changes
Actual
AVPlayer doesn't have status change nor failed notification

AVPlayerViewController not playing video and showing Quicktime logo

I am trying to play video with new AVPlayerViewController introduced in XCode 6.
To play video i have done this setup.
Using local mp4 file to play video
Extended AVPlayerViewController
Player setup code :
-(void)setupPlayer
{
NSString* filePath = [[NSBundle mainBundle] pathForResource:#"exodus_trailer" ofType:#"mp4"];
NSLog(#"File Path : %#",filePath);
AVAsset *avAsset = [AVAsset assetWithURL:[NSURL URLWithString:filePath]];
AVPlayerItem *avPlayerItem =[[AVPlayerItem alloc]initWithAsset:avAsset];
self.player = [[AVPlayer alloc]initWithPlayerItem:avPlayerItem];
[self.player addObserver:self forKeyPath:#"status" options:0 context:nil];
[self.player play];
}
KVO handling :
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if (object == self.player && [keyPath isEqualToString:#"status"])
{
if (self.player.status == AVPlayerStatusFailed)
{
NSLog(#"AVPlayer Failed");
}
else if (self.player.status == AVPlayerStatusReadyToPlay)
{
NSLog(#"AVPlayerStatusReadyToPlay");
[self.player play];
}
else if (self.player.status == AVPlayerItemStatusUnknown)
{
NSLog(#"AVPlayer Unknown");
}
}
}
Issue :
KVO log is printing AVPlayerStatusReadyToPlay and file path seems ok. Previously view was at least showing player with all default controls, but now without any changes it started to show Quick time logo without any control. What is meaning of showing this logo ? what i am doing wrong here ?
Screenshot :
Here is exactly like what you wanted to do. The problem with your code is that you are not using file path, use this to load the file path NSURL *url = [NSURL fileURLWithPath:urlString]
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
NSString *urlString = [[NSBundle mainBundle] pathForResource:#"testfile" ofType:#"mp4"];
NSURL *url = [NSURL fileURLWithPath:urlString];
self.player = [[AVPlayer alloc] initWithURL:url];
[self.player addObserver:self forKeyPath:#"status"
options:NSKeyValueObservingOptionNew
context:NULL];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context
{
if (object == self.player) {
AVPlayerStatus status = [change[NSKeyValueChangeNewKey] integerValue];
if (status == AVPlayerStatusReadyToPlay) {
[self.player play];
[self.player removeObserver:self forKeyPath:#"status"];
}
}
else {
[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
}
}
#end

avplayer is not playing the URL

I am using avplayer for play audio url, but it is not working, I don't know where i am wrong
NSString *radioURL = #"https://www.example.com";
radioPlayer = [AVPlayer playerWithURL:[NSURL URLWithString:radioURL]] ;
// [radioPlayer seekToTime:kCMTimeZero];
NSLog(#"radio player %#",radioPlayer.currentItem);
[radioPlayer play];
Any help would be appreciated.
I strongly recommended the code below to play radio streaming: please take a look also AVPlayer_Class
-(void)Play{
NSString *radioURL = #"https://www.example.com"; //this url must valid
AVPlayer *player = [[AVPlayer alloc]initWithURL:[NSURL URLWithString:radioURL]];
self.songPlayer = player; //self.songPlayer is a globle object of avplayer
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification
object:[songPlayer currentItem]];
[self.songPlayer addObserver:self forKeyPath:#"status" options:0 context:nil];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == songPlayer && [keyPath isEqualToString:#"status"]) {
if (songPlayer.status == AVPlayerStatusFailed) {
NSLog(#"AVPlayer Failed");
} else if (songPlayer.status == AVPlayerStatusReadyToPlay) {
NSLog(#"AVPlayerStatusReadyToPlay");
[self.songPlayer play];
} else if (songPlayer.status == AVPlayerItemStatusUnknown) {
NSLog(#"AVPlayer Unknown");
}
}
}
- (void)playerItemDidReachEnd:(NSNotification *)notification {
// code here to play next sound file
}
Ref link is - Streaming mp3 audio with AVPlayer
I had the same issue and just realized that I wasn't retaining the player (using ARC)! So it gets deallocated and stop playing immediately after start.
You need to make sure that you have a strong property radioPlayer and use self.radioPlayer instead of radioPlayer.
You are doing good but your method need to correct on one place.Check using the below method:
NSURL *audioURL = [NSURL URLWithString:radioURL];
NSData *audioData = [NSData dataWithContentsOfURL:audioURL];
self.audioPlayer = [[AVAudioPlayer alloc] initWithData:audioData error:nil];
self.audioPlayer.numberOfLoops = -1;
self.audioPlayer.delegate = self;
[self.audioPlayer prepareToPlay];
self.audioPlayer.volume=1.0;
[self.audioPlayer autorelease];
[self.audioPlayer Play];
and add proper delegate methods for AVAudioPlayer.
Make Sure URL is AddingPercentEscapes.
NSURL *audioURL = // Your Url;
NSString *encodedString = [#"Your Url" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *myURL = [[NSURL alloc] initWithString:encodedString]
AVPlayer *player = [AVPlayer playerWithURL:myURL];
[player prepareToPlay];
player play];
Did you forgot to set the attribute App Transport Security Settings -> Allow Arbitrary Loads (Yes)?

AVPlayer status always AVPlayerStatusReadyToPlay

I am using AVPlayer to play audio from a URL
In ViewDidLoad:
self.playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:imageText]];
self.player = [AVPlayer playerWithPlayerItem:playerItem];
[player addObserver:self forKeyPath:#"status" options:0 context:nil];
[player play];
Observer
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object
change:(NSDictionary *)change context:(void *)context {
if (object == player && [keyPath isEqualToString:#"status"]) {
if (player.status == AVPlayerStatusReadyToPlay) {
//[playingLbl setText:#"Playing Audio"];
NSLog(#"fineee");
[playBtn setEnabled:YES];
} else if (player.status == AVPlayerStatusFailed) {
// something went wrong. player.error should contain some information
NSLog(#"not fineee");
NSLog(#"%#",player.error);
}
else if (player.status == AVPlayerItemStatusUnknown) {
NSLog(#"AVPlayer Unknown");
}
}
}
but the player sometimes is stuck and does not play the audio but then also status is AVPlayerStatusReadyToPlay. It never goes inside AVPlayerStatusFailed or AVPlayerItemStatusUnknown. As i want to handle AVPlayer's error, it must go inside these as well. Please help!!
You should observe CurrentItem's status. AVPlayer failed because of AVPlayerItem failed, if anythings went wrong, it begins from AVPlayerItem then AVPlayer.
try:
[item addObserver:self forKeyPath:#"status" options:NSKeyValueObservingOptionNew context:nil];
in your observeValueForKeyPath:
if (object == audioPlayer.currentItem && [keyPath isEqualToString:#"status"]) {
if (audioPlayer.currentItem.status == AVPlayerItemStatusFailed) {
NSLog(#"------player item failed:%#",audioPlayer.currentItem.error);
}
}
You can take a look of AVPlayer's handling or use it directly from HysteriaPlayer, my open source project.

Can't Play AVPLayer Local Video from

So I am building a custom video player using AVFoundation - AVPlayer and AVPlayerLayer.
Currently, all I want the player to do is play a video in the asset library with a hardcoded url to that video. I would like this to be contained in a SubClass of UIView so I can use it all around my app.
Here is my code so far:
CUPlayer.h:
#interface CUPlayer : UIView
{
AVPlayer *player;
AVPlayerLayer *playerLayer;
AVPlayerItem *item;
NSURL *url;
}
#property(nonatomic) UIViewAutoresizing autoresizingMask;
#end
CUPlayer.m:
#implementation CUPlayer
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
// Initialization code
self.backgroundColor = [UIColor redColor];
[self setupURL];
}
return self;
}
-(void)setupURL
{
NSLog(#"URL setting up");
NSString *string = #"assets-library://asset/asset.mov?id=0A937F0D-6265-452D-8800- 1A760E8E88B9&ext=mov";
url = [[NSURL alloc] initFileURLWithPath: string];
[self setupPlayerForURL];
}
-(void)setupPlayerForURL
{
AVAsset *asset = [AVURLAsset URLAssetWithURL:url options:nil];
item = [AVPlayerItem playerItemWithAsset:asset];
player = [AVPlayer playerWithPlayerItem:item];
[player addObserver:self forKeyPath:#"status" options:0 context:nil];
playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
//player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
[self.layer addSublayer:playerLayer];
playerLayer.frame = CGRectMake(0, 0, 200, 200);
//[playerLayer setBackgroundColor:[UIColor greenColor].CGColor];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if (object == player && [keyPath isEqualToString:#"status"]) {
if (player.status == AVPlayerStatusFailed) {
NSLog(#"AVPlayer Failed");
} else if (player.status == AVPlayerStatusReadyToPlay) {
NSLog(#"AVPlayer Ready to Play");
[player play];
} else if (player.status == AVPlayerItemStatusUnknown) {
NSLog(#"AVPlayer Unknown");
}
}
}
And then I am calling this from the View Controller:
CUPlayer *cuPlayer = [[CUPlayer alloc]initWithFrame:CGRectMake(0, 0, 250, 250)];
[self.view addSubview:cuPlayer];
This complies but just give me a red square without the video playing. The URL to the local file is definitely correct. I can get it working if I hold all the code in the view controller and run the play in -(void)viewDidLayoutSubviews.
Help would very much be appreciated, I have read all the documentation multiple times trying to work this thing out.
Tom

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