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當我從圖庫中選擇一個視頻時，我將選定的文件擴展名爲.MOV，因此想將其轉換爲.MP4研究但在這種情況下沒有得到如何做到這一點。如果你有任何想法，請幫助。刪除文件路徑擴展名不工作，當我們必須將視頻格式從.MOV轉換爲.MP4
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)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);
PHFetchResult<PHAsset*> *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"];
}
}];
}];
}
else
{
NSURL *videoURL=info[UIImagePickerControllerReferenceURL];
NSLog(@" valid is%@",[info objectForKey:UIImagePickerControllerReferenceURL]);
//else this is valid : [info objectForKey:UIImagePickerControllerReferenceURL]];
PHFetchResult<PHAsset*> *assets = [PHAsset fetchAssetsWithALAssetURLs:@[videoURL]
options:nil];
PHAsset *asset1 = assets.firstObject;
AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:videoURL options:nil];
NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:avAsset];
// Check if video is supported for conversion or not
if ([compatiblePresets containsObject:AVAssetExportPresetLowQuality])
{
//Create Export session
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]initWithAsset:avAsset presetName:AVAssetExportPresetLowQuality];
//Creating temp path to save the converted video
NSString* documentsDirectory= [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString* myDocumentPath= [documentsDirectory stringByAppendingPathComponent:@"temp.mp4"];
NSURL *url = [[NSURL alloc] initFileURLWithPath:myDocumentPath];
NSData* data = [myDocumentPath dataUsingEncoding:NSUTF8StringEncoding];
//Check if the file already exists then remove the previous file
if ([[NSFileManager defaultManager]fileExistsAtPath:myDocumentPath])
{
[[NSFileManager defaultManager]removeItemAtPath:myDocumentPath error:nil];
}
exportSession.outputURL = url;
//set the output file format if you want to make it in other file format (ex .3gp)
exportSession.outputFileType = AVFileTypeMPEG4;
exportSession.shouldOptimizeForNetworkUse = YES;
[exportSession exportAsynchronouslyWithCompletionHandler:^{
switch ([exportSession status])
{
case AVAssetExportSessionStatusFailed:
NSLog(@"Export session failed");
break;
case AVAssetExportSessionStatusCancelled:
NSLog(@"Export canceled");
break;
case AVAssetExportSessionStatusCompleted:
{
//Video conversion finished
NSLog(@"Successful!");
}
break;
default:
break;
}
}];
}
else
{
NSLog(@"Video file not supported!");
}
[[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 phassetis %f",[size floatValue]/(1024.0*1024.0)); //size is 43.703005
NSData *data = [NSData dataWithContentsOfURL:urlAsset.URL];
NSLog(@"length %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"];
}
}];
}
[picker dismissViewControllerAnimated:YES completion:NULL];
_importView.hidden=YES;
}
我已經刪除的文件擴展名from.MOV到.MP4試圖通過以下方式上載，但din't worked.So我認爲需要將其轉換在乞討只有當從畫廊或選擇的camera.But得不到怎麼辦that.Any幫助表示讚賞
-(void)afnetworking{
NSURL *videoURL = [NSURL fileURLWithPath:myDocumentPath];
NSData *data = [NSData dataWithContentsOfURL:videoURL];
if(data)
{
// NSString *videoName = [[videoUrl lastPathComponent]stringByDeletingPathExtension];
NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
[bodyData appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSString *tmpfileinfo = [NSString stringWithFormat:@"Content-Disposition: form-data; name=\"video_clip\"; filename=\"%@\"\r\n",videoData];
[bodyData appendData:[tmpfileinfo dataUsingEncoding:NSUTF8StringEncoding]];
[bodyData appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[bodyData appendData:[NSData dataWithData:videoData]];
}
我們在做什麼水道線的NSString * myDocumentPath = [documentsDirectory stringByAppendingPathComponent：@ 「temp.mp4的」];我們不想添加temp.mp4，我們只需要filename.mp4，你可以向我解釋它。 – vicky
@vicky該行是輸出視頻路徑，你可以給你任何你想要的名字。我們將視頻存儲在Document目錄中。 –
意味着它只是用於存儲目的的原始文件名（我們從圖庫中拾取的文件）不會改變？對。 @Bhadresh Mulsaniya – vicky