ios - Upload a single video file to server -

i want upload video webservice server. video take uiimagepicker here code uiimagepicker:-

- (ibaction)btn_select:(id)sender { uiimagepickercontroller *imgpicker=[[uiimagepickercontroller alloc]init]; imgpicker.delegate=self; imgpicker.sourcetype=uiimagepickercontrollersourcetypesavedphotosalbum; imgpicker.mediatypes = [[nsarray alloc] initwithobjects:(nsstring *)kuttypemovie,nil]; [self presentviewcontroller:imgpicker animated:yes completion:nil];}    - (void)imagepickercontroller:(uiimagepickercontroller *)picker didfinishpickingmediawithinfo:(nsdictionary *)info    {  [picker dismissviewcontrolleranimated:yes completion:nil]; // dismiss image picker view controller  nsstring *mediatype = [info objectforkey:uiimagepickercontrollermediatype];  if ([mediatype isequaltostring:(nsstring *)kuttypemovie]) {     nsurl *mediaurl = [info objectforkey:uiimagepickercontrollermediaurl];      mpmovieplayercontroller *movieplayer = [[mpmovieplayercontroller alloc] initwithcontenturl:mediaurl];     movieplayer.shouldautoplay = no;     nslog(@"%@",mediaurl);      uiimage *thumbnail = [movieplayer thumbnailimageattime:0.0 timeoption:mpmovietimeoptionnearestkeyframe];     [img_out setimage:thumbnail];  //imageview uiimageview  } 

now want upload selected video button action server post method...

i have make string post:-

nsstring *post=[nsstring stringwithformat:@"uid=791986&category=game&description=asd&language=english&country=us&bobltags=asd&video=file:///users/mymac/library/developer/coresimulator/devices/3dd070c1-71de-4672-bac2-9b4e64f57d0a/data/containers/data/application/68e251cb-7c67-4559-a13d-91f222b9d0ee/tmp/trim.9467b9de-d7bf-43be-99da-366589746063.mov"]; 

now ahead. have lots of example didn't correctly kboundry , else...

give me code..

for posting video need use function after image picker delegate:

- (nsdata *)generatepostdatafordata:(nsdata *)uploaddata {     // generate post header:     nsstring *post = [nsstring stringwithcstring:"--aab03x\r\ncontent-disposition: form-data; name=\"upload[file]\"; filename=\"somefile\"\r\ncontent-type: application/octet-stream\r\ncontent-transfer-encoding: binary\r\n\r\n" encoding:nsasciistringencoding];      // post header int ascii format:     nsdata *postheaderdata = [post datausingencoding:nsasciistringencoding allowlossyconversion:yes];      // generate mutable data variable:     nsmutabledata *postdata = [[nsmutabledata alloc] initwithlength:[postheaderdata length] ];     [postdata setdata:postheaderdata];      // add image:     [postdata appenddata: uploaddata];      // add closing boundry:     [postdata appenddata: [@"\r\n--aab03x--" datausingencoding:nsasciistringencoding allowlossyconversion:yes]];      // return post data:     return postdata; }   - (void)imagepickercontroller:(uiimagepickercontroller *)picker didfinishpickingmediawithinfo:(nsdictionary *)info{       //assign mediatype string      nsstring *mediatype = [info objectforkey:uiimagepickercontrollermediatype];      //check media type string can determine if video     if ([mediatype isequaltostring:@"public.movie"]){         nslog(@"got movie");         nsurl *videourl = [info objectforkey:uiimagepickercontrollermediaurl];         nsdata *webdata = [nsdata datawithcontentsofurl:videourl];         [self post:webdata];         [webdata release];      } 

for post video use function:

- (void)post:(nsdata *)filedata {      nslog(@"posting");      // generate postdata:     nsdata *postdata = [self generatepostdatafordata: filedata];     nsstring *postlength = [nsstring stringwithformat:@"%d", [postdata length]];      // setup request:     nsmutableurlrequest *uploadrequest = [[[nsmutableurlrequest alloc] initwithurl:[nsurl urlwithstring:@"http://www.example.com:3000/"] cachepolicy: nsurlrequestreloadignoringlocalcachedata timeoutinterval: 30 ] autorelease];     [uploadrequest sethttpmethod:@"post"];     [uploadrequest setvalue:postlength forhttpheaderfield:@"content-length"];     [uploadrequest setvalue:@"multipart/form-data; boundary=aab03x" forhttpheaderfield:@"content-type"];     [uploadrequest sethttpbody:postdata];      // execute reqest:     nsurlconnection *conn=[[nsurlconnection alloc] initwithrequest:uploadrequest delegate:self];     if (conn)     {         // connection succeeded (even if 404 or other non-200 range returned).         nslog(@"sucess");         uialertview *alert = [[uialertview alloc] initwithtitle:@"got server response" message:@"success" delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];         [alert show];         [alert release];     }     else     {         // connection failed (cannot reach server).         nslog(@"fail");     }  }