iOS开发-进阶:MOV格式视频转MP4格式

来源：互联网发布：淘宝收藏宝贝送优惠券编辑：程序博客网时间：2024/05/21 09:10
AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:sourceUrl options:nil];    NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:avAsset];    NSLog(@"%@",compatiblePresets);    if ([compatiblePresets containsObject:AVAssetExportPresetHighestQuality]) {        AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:avAsset presetName:AVAssetExportPresetMediumQuality];        NSDateFormatter *formater = [[NSDateFormatter alloc] init];//用时间给文件全名，以免重复        [formater setDateFormat:@"yyyy-MM-dd-HH:mm:ss"];        NSString * resultPath = [NSHomeDirectory() stringByAppendingFormat:@"/Documents/output-%@.mp4", [formater stringFromDate:[NSDate date]]];        NSLog(@"resultPath = %@",resultPath);        exportSession.outputURL = [NSURL fileURLWithPath:resultPath];        exportSession.outputFileType = AVFileTypeMPEG4;        exportSession.shouldOptimizeForNetworkUse = YES;        [exportSession exportAsynchronouslyWithCompletionHandler:^(void)         {             switch (exportSession.status) {                 case AVAssetExportSessionStatusUnknown:                     NSLog(@"AVAssetExportSessionStatusUnknown");                     break;                 case AVAssetExportSessionStatusWaiting:                     NSLog(@"AVAssetExportSessionStatusWaiting");                     break;                 case AVAssetExportSessionStatusExporting:                     NSLog(@"AVAssetExportSessionStatusExporting");                     break;                 case AVAssetExportSessionStatusCompleted:                     NSLog(@"AVAssetExportSessionStatusCompleted");                     break;                 case AVAssetExportSessionStatusFailed:                     NSLog(@"AVAssetExportSessionStatusFailed");                     break;             }         }];    }
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