AVPlayer URL & volume Additions

AVPlayer+MOAdditions.m

#import "AVPlayer+MOAdditions.h"
#include <CoreMedia/CMBase.h>
#import "AVPlayerItem+MOAdditions.h"

@implementation AVPlayer (MOAdditions)

- (NSURL *)currentURL {
    AVAsset *asset = self.currentItem.asset;
    if ([asset isMemberOfClass:[AVURLAsset class]])
        return ((AVURLAsset *)asset).URL;
    return nil;
}

- (void)setVolume:(CGFloat)volume {
    NSArray *audioTracks = [self.currentItem.asset tracksWithMediaType:AVMediaTypeAudio];
    NSMutableArray *allAudioParams = [NSMutableArray array];
    for (AVAssetTrack *track in audioTracks) {
        AVMutableAudioMixInputParameters *audioInputParams = [AVMutableAudioMixInputParameters audioMixInputParameters];
        [audioInputParams setVolume:volume atTime:kCMTimeZero];
        [audioInputParams setTrackID:[track trackID]];
        [allAudioParams addObject:audioInputParams];
    }
    AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];
    [audioMix setInputParameters:allAudioParams];
    [self.currentItem setAudioMix:audioMix];
}

@end

AVPlayerMOAdditions.m

#import "AVPlayer+MOAdditions.h"
#include <CoreMedia/CMBase.h>

@implementation AVPlayer (MOAdditions)

- (NSURL *)currentURL {
    AVAsset *asset = self.currentItem.asset;
    if ([asset isMemberOfClass:[AVURLAsset class]])
        return ((AVURLAsset *)asset).URL;
    return nil;
}

- (void)setVolume:(CGFloat)volume {
    NSArray *audioTracks = [self.currentItem.asset tracksWithMediaType:AVMediaTypeAudio];
    NSMutableArray *allAudioParams = [NSMutableArray array];
    for (AVAssetTrack *track in audioTracks) {
        AVMutableAudioMixInputParameters *audioInputParams = [AVMutableAudioMixInputParameters audioMixInputParameters];
        [audioInputParams setVolume:volume atTime:kCMTimeZero];
        [audioInputParams setTrackID:[track trackID]];
        [allAudioParams addObject:audioInputParams];
    }
    AVMutableAudioMix *audioMix = [AVMutableAudioMix audioMix];
    [audioMix setInputParameters:allAudioParams];
    [self.currentItem setAudioMix:audioMix];
}

@end

This won't work for live streaming. My tracks array is always empty...