[iOS]录制或从相册选择视频

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写一个“添加视频”的功能
内容：
1.从相册选择视频
2.录制视频
3.将mov格式视频转为mp4
4.使用封装的SLPlayer播放器播放视频

GitHub:https://github.com/Gamin-fzym/GAVideoRecordDemo
Demo:https://download.csdn.net/download/u012881779/12116007

示意图：

详见demo，这里放部分代码水一下。

#import "HomeViewController.h"
#import "GSRecordVideoController.h"
#import "GSRecordEngine.h"
#import <CoreServices/CoreServices.h>
#import "UIViewController+NoSlideBack.h"
#import "GSPSVideoModel.h"@interface HomeViewController () <UITableViewDelegate, UITableViewDataSource, GSPSVideoCellDelegate, GSRecordVideoControllerDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate>@property (weak, nonatomic) IBOutlet UITableView *tableView;
@property (strong, nonatomic) UIImagePickerController *moviePicker; // 视频选择器
@property (strong, nonatomic) GSRecordEngine *recordEngine;
@property (strong, nonatomic) GSPSVideoModel *videoModel;@end@implementation HomeViewController- (void)viewDidLoad {[super viewDidLoad];self.tableView.estimatedRowHeight = 100;self.tableView.rowHeight = UITableViewAutomaticDimension;[self.tableView registerNib:[UINib nibWithNibName:GSPSVideoCellIdentifier bundle:nil] forCellReuseIdentifier:GSPSVideoCellIdentifier];}- (IBAction)tapAddVideoAction:(id)sender {UIAlertController *alertCtrl = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];[alertCtrl addAction:[UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {[self presentViewController:self.moviePicker animated:YES completion:nil];}]];[alertCtrl addAction:[UIAlertAction actionWithTitle:@"拍摄" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {GSRecordVideoController *con = GSRecordVideoController.new;con.hidesBottomBarWhenPushed = YES;con.delegate = self;[self presentViewController:con animated:YES completion:nil];}]];[alertCtrl addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];[self presentViewController:alertCtrl animated:YES completion:nil];
}#pragma mark - 懒加载
- (GSRecordEngine *)recordEngine {if (_recordEngine == nil) {_recordEngine = [[GSRecordEngine alloc] init];}return _recordEngine;
}- (UIImagePickerController *)moviePicker {if (_moviePicker == nil) {_moviePicker = [[UIImagePickerController alloc] init];_moviePicker.delegate = self;[_moviePicker configNoSlideBack];_moviePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;_moviePicker.mediaTypes = @[(NSString *)kUTTypeMovie];_moviePicker.allowsEditing = YES;_moviePicker.videoMaximumDuration = GS_Video_Limit_Seconds;}return _moviePicker;
}#pragma mark - UITableViewDelegate, UITableViewDataSource- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return 1;
}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {GSPSVideoCell *videoCell = [tableView dequeueReusableCellWithIdentifier:GSPSVideoCellIdentifier forIndexPath:indexPath];videoCell.videoModel = self.videoModel;videoCell.delegate = self;return videoCell;
}#pragma mark - GSPSVideoCellDelegate- (void)GSPSVideoCell_PlayClickWithPath:(NSString *)playPath {}#pragma mark - GSRecordVideoControllerDelegate
// 录像
- (void)handleWithRecordPath:(NSString *)recordPath withFirstImage:(UIImage *)firstImage withTotalTimeFormat:(NSString *)totalTimeFormat {GSPSVideoModel *videoModel = GSPSVideoModel.new;videoModel.videoLocalPath = recordPath;videoModel.videoFirstImg = firstImage;videoModel.videoTimeFormat = totalTimeFormat;self.videoModel = videoModel;[self.tableView reloadData];
}#pragma mark - UIImagePickerControllerDelegate
// 选择视频
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {if ([[info objectForKey:UIImagePickerControllerMediaType] isEqualToString:(NSString*)kUTTypeMovie]) {// 获取视频的名称NSString *videoPath = [NSString stringWithFormat:@"%@",[info objectForKey:UIImagePickerControllerMediaURL]];// 如果视频是mov格式的则转为MP4的if ([videoPath containsString:@".MOV"]) {NSURL *videoUrl = [info objectForKey:UIImagePickerControllerMediaURL];CGFloat timeSecs = [self getVideoDuration:videoUrl];NSString *timeFormat = [self Timeformat2FromSeconds:timeSecs];WEAKSELF[self.recordEngine changeMovToMp4:videoUrl dataBlock:^(UIImage *movieImage) {[weakSelf.moviePicker dismissViewControllerAnimated:YES completion:^{[self handleWithRecordPath:weakSelf.recordEngine.videoPath withFirstImage:movieImage withTotalTimeFormat:timeFormat];}];}];}}
}- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {[picker.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}#pragma mark - 其它
// 获取视频时间
- (CGFloat)getVideoDuration:(NSURL *)URL {NSDictionary *opts = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO]forKey:AVURLAssetPreferPreciseDurationAndTimingKey];AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:URL options:opts];float second = 0;second = urlAsset.duration.value/urlAsset.duration.timescale;return second;
}// 获取视频 大小
- (NSInteger)getFileSize:(NSString *)path {NSFileManager * filemanager = [[NSFileManager alloc]init];if([filemanager fileExistsAtPath:path]){NSDictionary * attributes = [filemanager attributesOfItemAtPath:path error:nil];NSNumber *theFileSize;if ( (theFileSize = [attributes objectForKey:NSFileSize]) ) {return  [theFileSize intValue]/1024;} else {return -1;}} else {return -1;}
}// 秒数格式化
- (NSString *)Timeformat2FromSeconds:(NSInteger)seconds {//format of hourNSString *str_hour = [NSString stringWithFormat:@"%02ld",seconds/3600];//format of minuteNSString *str_minute = [NSString stringWithFormat:@"%02ld",(seconds%3600)/60];//format of secondNSString *str_second = [NSString stringWithFormat:@"%02ld",seconds%60];//format of timeNSString *format_time;if ([str_hour isEqualToString:@"00"]) {format_time = [NSString stringWithFormat:@"%@:%@",str_minute,str_second];} else {format_time = [NSString stringWithFormat:@"%@:%@:%@",str_hour,str_minute,str_second];}return format_time;
}@end

 

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