应某些人需求，把oc版写了下，n年没碰oc了，如果有哪里写的有问题，希望在留言里指出来，我会修改的：
/// M3u8ResourceLoader_OC.h
#import <Foundation/Foundation.h>
#import <AVKit/AVKit.h>
#import <AVFoundation/AVAssetResourceLoader.h>
@interface M3u8ResourceLoader_OC : NSObject <AVAssetResourceLoaderDelegate>
+ (M3u8ResourceLoader_OC *)shared;
- (AVPlayerItem *)playItemWith: (NSString *)url;
@end
/// M3u8ResourceLoader_OC.m
#import <UIKit/UIKit.h>
#import "M3u8ResourceLoader_OC.h"
static NSString *apple_m3u8 = @"#EXTM3U\n#EXT-X-PLAYLIST-TYPE:EVENT\n#EXT-X-TARGETDURATION:10\n#EXT-X-VERSION:3\n#EXT-X-MEDIA-SEQUENCE:0\n#EXTINF:10, no desc\n#EXT-X-KEY:METHOD=AES-128,URI=\"ckey://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/crypt0.key\", IV=0x3ff5be47e1cdbaec0a81051bcc894d63\nrdtp://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/fileSequence0.ts\n#EXTINF:10, no desc\nrdtp://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/fileSequence1.ts\n#EXTINF:10, no desc\nrdtp://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/fileSequence2.ts\n#EXTINF:10, no desc\nrdtp://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/fileSequence3.ts\n#EXTINF:10, no desc\nrdtp://devimages.apple.com/samplecode/AVARLDelegateDemo/BipBop_gear3_segmented/fileSequence4.ts\n#EXT-X-ENDLIST";
@interface M3u8ResourceLoader_OC() {
NSString *m3u8_url_vir;
NSString *m3u8_url;
}
@end
@implementation M3u8ResourceLoader_OC
+ (instancetype)allocWithZone:(struct _NSZone *)zone {
return [M3u8ResourceLoader_OC shared];
}
- (instancetype)copyWithZone:(NSZone *)zone {
return [M3u8ResourceLoader_OC shared];
}
- (instancetype)mutableCopyWithZone:(NSZone *)zone {
return [M3u8ResourceLoader_OC shared];
}
+ (M3u8ResourceLoader_OC *)shared {
static M3u8ResourceLoader_OC *instance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
instance = [[super allocWithZone: nil] init];
});
return instance;
}
- (M3u8ResourceLoader_OC *)init {
self = [super init];
m3u8_url_vir = @"m3u8Scheme://abcd.m3u8";
return self;
}
- (BOOL)resourceLoader:(AVAssetResourceLoader *)resourceLoader shouldWaitForLoadingOfRequestedResource:(AVAssetResourceLoadingRequest *)loadingRequest {
NSString *url = [[[loadingRequest request] URL] absoluteString];
if (!url) {
return false;
}
if ([url hasSuffix: @".ts"]) {
dispatch_async(dispatch_get_main_queue(), ^{
NSString *newUrl = [url stringByReplacingOccurrencesOfString: @"rdtp" withString: @"http"];
NSURL *url = [[NSURL alloc] initWithString: newUrl];
if (url) {
NSURLRequest *redirect = [[NSURLRequest alloc] initWithURL: url];
[loadingRequest setRedirect: redirect];
[loadingRequest setResponse: [[NSHTTPURLResponse alloc] initWithURL: [redirect URL] statusCode: 301 HTTPVersion: nil headerFields: nil]];
[loadingRequest finishLoading];
} else {
[self finishLoadingError: loadingRequest];
}
});
return true;
}
if ([url isEqualToString: m3u8_url_vir]) {
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSData *data = [self M3u8Request: self->m3u8_url];
if (data) {
dispatch_async(dispatch_get_main_queue(), ^{
NSString *m3u8String = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSString *newM3u8String = [m3u8String stringByReplacingOccurrencesOfString: @"替换字符串" withString: @"BipBop"];
NSData *data = [newM3u8String dataUsingEncoding: NSUTF8StringEncoding];
[[loadingRequest dataRequest] respondWithData: data];
[loadingRequest finishLoading];
});
} else {
dispatch_async(dispatch_get_main_queue(), ^{
[self finishLoadingError: loadingRequest];
});
}
});
return true;
}
if (![url hasSuffix: @".ts"] && ![url isEqualToString: m3u8_url_vir]) {
dispatch_async(dispatch_get_main_queue(), ^{
NSString *newUrl = [url stringByReplacingOccurrencesOfString: @"ckey" withString: @"http"];
NSURL *url = [[NSURL alloc] initWithString: newUrl];
if (url) {
NSData *data = [[NSData alloc] initWithContentsOfURL: url];
if (data) {
[[loadingRequest dataRequest] respondWithData: data];
[loadingRequest finishLoading];
} else {
[self finishLoadingError: loadingRequest];
}
} else {
[self finishLoadingError: loadingRequest];
}
});
return true;
}
return false;
}
- (void)finishLoadingError: (AVAssetResourceLoadingRequest *)loadingRequest {
[loadingRequest finishLoadingWithError: [[NSError alloc] initWithDomain: NSURLErrorDomain code: 400 userInfo: nil]];
}
- (NSData *)M3u8Request: (NSString *)url {
dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
static NSData *result = NULL;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 1 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
NSString *newString = [apple_m3u8 stringByReplacingOccurrencesOfString: @ "BipBop" withString: @"替换字符串"];
result = [newString dataUsingEncoding: NSUTF8StringEncoding];
dispatch_semaphore_signal(semaphore);
});
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
return result;
}
- (AVPlayerItem *)playItemWith: (NSString *)url {
m3u8_url = url;
AVURLAsset *urlAsset = [[AVURLAsset alloc] initWithURL: [[NSURL alloc] initWithString: m3u8_url_vir] options: nil];
[[urlAsset resourceLoader] setDelegate: self queue: dispatch_get_main_queue()];
AVPlayerItem *item = [[AVPlayerItem alloc] initWithAsset: urlAsset];
[item setCanUseNetworkResourcesForLiveStreamingWhilePaused: YES];
return item;
}
@end
swift版链接：//www.greatytc.com/p/2c2cbe173e99
