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标题: ios - 将 .MOV 转换为 .MP4，同时从图库中选择或从相机录制 [打印本页]

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作者: 菜鸟教程小白    时间: 2022-12-11 16:44
标题: ios - 将 .MOV 转换为 .MP4，同时从图库中选择或从相机录制

当我从图库中选择一个视频时，我选择的文件扩展名为 .MOV，因此想将其转换为 .MP4 进行研究，但在这种情况下不知道如何做到这一点。如果你有任何想法，请帮忙。

   - (void)imagePickerControllerUIImagePickerController *)picker didFinishPickingMediaWithInfoNSDictionary *)info
 {

    selectedVideoURL = info[UIImagePickerControllerMediaURL];
if( [picker sourceType] == UIImagePickerControllerSourceTypeCamera )
{
    NSURL *videoURL=info[UIImagePickerControllerMediaURL];
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc]init];
    [library writeVideoAtPathToSavedPhotosAlbum:videoURL completionBlock:^(NSURL *assetURL, NSError *error )
     {
         //here is your URL : assetURL
         NSLog(@"url is%@",assetURL);

     // here in debugger it shows as  assets.MOV  i want .MP4 

         PHFetchResult<HAsset*> *assets = [PHAsset fetchAssetsWithALAssetURLs[assetURL]
                                                                       options:nil];

         PHAsset *asset1 = assets.firstObject;
         [[PHImageManager defaultManager] requestAVAssetForVideo:asset1 options:nil resultHandler:^(AVAsset *asset, AVAudioMix *audioMix, NSDictionary *info) {
             if ([asset isKindOfClass:[AVURLAsset class]]) {
                 AVURLAsset* urlAsset = (AVURLAsset*)asset;
                 NSNumber *size;

                 [urlAsset.URL getResourceValue:&size forKey:NSURLFileSizeKey error:nil];
                 NSLog(@"size video of camera %f",[size floatValue]/(1024.0*1024.0)); //size is 43.703005
                 NSData *data = [NSData dataWithContentsOfURL:urlAsset.URL];
                 NSLog(@"length of camera %f",[data length]/(1024.0*1024.0)); // data size is 43.703005

                 sizeofVideo=[size floatValue]/(1024.0*1024.0);

                 NSLog(@"sizeofVideo arvin %f",sizeofVideo);
                 if (!sizeofVideo>50.00) {
                     selectedVideoURL=nil;
                     UIAlertView *alert=[[UIAlertView alloc]initWithTitle"Alert" message"size of video exist 50MB" delegate:self cancelButtonTitle"ok" otherButtonTitles:nil];
                     [alert show];
                     attachnoteLbl.text=[NSString stringWithFormat"Attach Note:0"];
                 }
                     attachnoteLbl.text=[NSString stringWithFormat"Attach Note:1"];

             }
         }];
     }];
}

我尝试了以下方法，将文件扩展名从 .MOV 删除为 .MP4，但没有成功。所以我认为只有在从图库或相机中选择时才需要在乞求中转换它。

-(void)afnetworking{

     NSString *videoUrl=[selectedVideoURL path];
   if(videoUrl){
    NSString *videoName = [[videoUrl lastPathComponent]stringByDeletingPathExtension];
    NSData *videoData  = [NSData dataWithContentsOfURL:selectedVideoURL];
    [bodyData appendData:[[NSString stringWithFormat"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    NSString *tmpfileinfo = [NSString stringWithFormat"Content-Disposition: form-data; name=\"video_clip\"; filename=\"%@.mp4\"\r\n",videoName];
    [bodyData appendData:[tmpfileinfo dataUsingEncoding:NSUTF8StringEncoding]];
    [bodyData appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [bodyData appendData:[NSData dataWithData:videoData]];

}

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Best Answer-推荐答案

查看这个库。希望这可以解决您的问题。 https://github.com/Darktt/DTVideoConverter

关于ios - 将 .MOV 转换为 .MP4，同时从图库中选择或从相机录制，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37832277/

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