ios - Making video with overlay view in AVCaptureVideoPreviewLayer -


i'm trying capture video overlay view using avcapturevideopreviewlayer, video saving without overlay view. app setting object instead of face, works fine , able take images (see link below). capturing video issue.

https://i.stack.imgur.com/j5t15.jpg

cmformatdescriptionref formatdescriptionref = cmsamplebuffergetformatdescription(samplebuffer);

        const audiostreambasicdescription *audiostreambasicdescription = cmaudioformatdescriptiongetstreambasicdescription(fdesc);          _samplerate = audiostreambasicdescription -> msamplerate;         _audiochannel = audiostreambasicdescription -> mchannelsperframe;          nsdateformatter *dateformatter = [[nsdateformatter alloc] init];         dateformatter.dateformat = @"hh:mm:ss";         nsdate *currentdate = [nsdate datewithtimeintervalsince1970:[[nsdate date] timeintervalsince1970]];         nsstring *currentdatestring = [dateformatter stringfromdate:currentdate];         nsstring *videoname = [nsstring stringwithformat:@"video_%@.mp4", currentdatestring];         _videopath = [self.cachedirectorypath stringbyappendingpathcomponent:videoname];         _resolutionwidth  = 360;         _resolutionheight = 640;         _recordingwriter = [videorecordingwriter recordingwriterwithvideopath:_videopath                                                               resolutionwidth:_resolutionwidth resolutionheight:_resolutionheight                                                                  audiochannel:_audiochannel samplerate:_samplerate];          cmtime presentationtimestamp = cmsamplebuffergetpresentationtimestamp(samplebuffer);         if (_startrecordingcmtime.value == 0) {             _startrecordingcmtime = presentationtimestamp;         }          cmtime subtract = cmtimesubtract(presentationtimestamp, _startrecordingcmtime);         _currentrecordingtime = cmtimegetseconds(subtract);         if (_currentrecordingtime > _maxrecordingtime) {             if (_currentrecordingtime - _maxrecordingtime >= 0.1) {                 return;             }         }         [_recordingwriter writewithsamplebuffer:samplebuffer isvideo:yes];         dispatch_async(dispatch_get_main_queue(), ^{             [self updaterecordingprogress:_currentrecordingtime / _maxrecordingtime];         }); 

func startcapturing(view: skview, background: calayer, done: @escaping((_:calayer)->())) {     let device = getcamera()!      {         capturesession.beginconfiguration()          // set inputs         try capturesession.addinput(avcapturedeviceinput(device: device))          capturesession.sessionpreset = avcapturesessionpresethigh         previewlayer = avcapturevideopreviewlayer(session: capturesession)          if let previewlayer = previewlayer {             // add background             previewlayer.addsublayer(background)              // init preview             previewlayer.name = "camera"             previewlayer.frame.size = view.bounds.size             if is_debug {                 print("videoservice: size of previewlayer")                 print(previewlayer.frame.size)             }             previewlayer.position = cgpoint(                 x: view.frame.width/2, y: view.frame.height/2)             view.layer.addsublayer(previewlayer)             done(previewlayer)         }         capturesession.commitconfiguration()         capturesession.startrunning()          print("\n\nvideoservice: camera configured")     } catch {         print("error: start capturing failed")     } }  func getcapturesessionback() -> avcapturedevicediscoverysession {     session = session ?? avcapturedevicediscoverysession(         devicetypes: [devicetypebackcamera],         mediatype: avmediatypevideo,         position: position)     return session! }  func getcamera() -> avcapturedevice? {     device = device ?? getcapturesessionback().devices.first     return device }

Comments

Post a Comment

Popular posts from this blog

python - Operations inside variables -

this question has answer here: evaluating mathematical expression in string 12 answers i want make python script finds maximum possible output using 2 operations. problem says there syntax error @ 2nd last line, in b in there. how can fix it? x = 0 = int(input("1st number:")) c = int(input("2nd number:" )) e = int(input("3rd number:" )) in range(4): if == 0: b = "+" elif == 1: b = "-" elif == 2: b = "/" else: b = "*" j in range(4): if j == 0: d = "+" elif j == 1: d = "-" elif j == 2: d = "/" else: d = "*" k = b c d e print(k) if you're after variables e on single line, couldn...
Read more

Generic Map Parameter java -

i having lot of methods of type: public static list<eduusers> getdetails(class c, map<string, integer> params) { list<eduusers> details = null; session session = hibernateutil.getsessionfactory().opensession(); transaction tx = null; try { tx = session.begintransaction(); criteria cr = session.createcriteria(c); (map.entry<string, integer> entry : params.entryset()) { cr.add(restrictions.eq(entry.getkey(), entry.getvalue())); } details = cr.list(); tx.commit(); } catch (exception asd) { log.debug(asd.getmessage()); if (tx != null) { tx.commit(); } } { session.close(); } return details; } i trying have generic method them , have written far: public static <t> list<t> getdetails(class<t> c, class<t> b) { l...
Read more

arrays - What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it? -

what arrayindexoutofboundsexception mean , how rid of it? here code sample triggers exception: string[] name = {"tom", "dick", "harry"}; for(int = 0; i<=name.length; i++) { system.out.print(name[i] +'\n'); } your first port of call should documentation explains reasonably clearly: thrown indicate array has been accessed illegal index. index either negative or greater or equal size of array. so example: int[] array = new int[5]; int boom = array[10]; // throws exception as how avoid it... um, don't that. careful array indexes. one problem people run thinking arrays 1-indexed, e.g. int[] array = new int[5]; // ... populate array here ... (int index = 1; index <= array.length; index++) { system.out.println(array[index]); } that miss out first element (index 0) , throw exception when index 5. valid indexes here 0-4 inclusive. correct, idiomatic for statement here be: for (int index = 0; index <...
Read more