(腾讯视频)iOS开发之视频根据url获取第一帧图片,获取任一帧图片

#import <AVFoundation/AVFoundation.h>

+ (UIImage*) thumbnailImageForVideo:(NSURL *)videoURL atTime:(NSTimeInterval)time { AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:videoURL options:nil];

NSParameterAssert(asset);

　　AVAssetImageGenerator *assetImageGenerator =[[AVAssetImageGenerator alloc] initWithAsset:asset];

assetImageGenerator.appliesPreferredTrackTransform = YES;

　　 assetImageGenerator.apertureMode = AVAssetImageGeneratorApertureModeEncodedPixels;

CGImageRef thumbnailImageRef = NULL;

　　CFTimeInterval thumbnailImageTime = time;

　　NSError *thumbnailImageGenerationError = nil;

　　 thumbnailImageRef = [assetImageGenerator copyCGImageAtTime:CMTimeMake(thumbnailImageTime, 60)actualTime:NULL error:&thumbnailImageGenerationError];

　　if(!thumbnailImageRef)

　　 NSLog(@"thumbnailImageGenerationError %@",thumbnailImageGenerationError);

　　 UIImage*thumbnailImage = thumbnailImageRef ? [[UIImage alloc]initWithCGImage: thumbnailImageRef] : nil;

　　　　return thumbnailImage;

}

-(void)setADvideoUrl:(NSString *)urlstr

{

urlstr = urlstr;

NSLog(@"%@",urlstr);

//http://v.qq.com/iframe/player.html?vid=k0511h0fvay&tiny=1&auto=0 大图

NSURL * url = [NSURLURLWithString:urlstr];

NSString * hostStr = [url host];

NSString * tXURL = @"v.qq.com";

//https://puui.qpic.cn/qqvideo_ori/0/k0511h0fvay_228_128/0 小图

NSString * videoPrewURL = nil;

if([tXURL isEqualToString:hostStr]){ //如果是腾讯视频

NSDictionary * dic = [urlstr getURLParameters];

NSString * videoIDStr = [dic objectForKey:@"vid"];

if(videoIDStr){

videoPrewURL = [NSStringstringWithFormat:@"https://puui.qpic.cn/qqvideo_ori/0/%@_228_128/0",videoIDStr];

NSLog(@"videoIDStr is %@",videoPrewURL);

}

}

}