MOV_TO_MP4

本是古典何须时尚 2023-10-16 18:43 32阅读 0赞

-(void)MovToMp4
    {
        AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:[NSURL fileURLWithPath:screenFilePath] options:nil];
        
        NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:avAsset];
        
        if ([compatiblePresets containsObject:AVAssetExportPresetLowQuality])
            
        {
            
            AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]initWithAsset:avAsset presetName:AVAssetExportPresetHighestQuality];
            
            NSDateFormatter* formater = [[NSDateFormatter alloc] init];
            [formater setDateFormat:@"yyyyMMddHHmmss"];
            NSString *_mp4Path = [[NSHomeDirectory() stringByAppendingFormat:@"/Documents/%@.mp4", [formater stringFromDate:[NSDate date]]] retain];
            [formater release];
            exportSession.outputURL = [NSURL fileURLWithPath:_mp4Path];
            
            exportSession.outputFileType = AVFileTypeMPEG4;
            
            CMTime start = CMTimeMakeWithSeconds(1.0, 600);
            
            CMTime duration = CMTimeMakeWithSeconds(3.0, 600);
            
            CMTimeRange range = CMTimeRangeMake(start, duration);
            
            exportSession.timeRange = range;
            
            [exportSession exportAsynchronouslyWithCompletionHandler:^{
                
                switch ([exportSession status]) {
                        
                    case AVAssetExportSessionStatusFailed:
                        NSLog(@"Export failed: %@", [[exportSession error] localizedDescription]);
                        
                        break;
                        
                    case AVAssetExportSessionStatusCancelled:
                        
                        NSLog(@"Export canceled");
                        
                        break;
                    case AVAssetExportSessionStatusCompleted:
                    {
                        NSLog(@"开始上传屏幕快照");
                      [g_api UpdateScreen:_mp4Path];   
                    }
                        break;
                    default:
                        
                        break;
                        
                }
                
                [exportSession release];
                
            }];
            
        }
    
    }