OpenCV Crashes when reopening camera on Mac OSX Sierra and displaying -


when reopen webcam in opencv on mac osx sierra, , display images it, nsexceptions.

this test code i'm working try figure out error mode.

import cv2  cam = cv2.videocapture(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1)  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1)  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1)  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1)

the error i'm getting is

2016-11-05 18:15:07.075 python[1082:24157] *** terminating app due uncaught exception 'nsinternalinconsistencyexception', reason: 'an instance 0x7fca4ac3a6f0 of class avcapturedaldevice deallocated while key value observers still registered it. current observation info: <nskeyvalueobservationinfo 0x7fca4ac42f80> ( <nskeyvalueobservance 0x7fca4ae6df50: observer: 0x7fca4ae6b410, key path: open, options: <new: no, old: no, prior: no> context: 0x7fffc9c99570, property: 0x7fca4ac3fe30> )' *** first throw call stack: (     0   corefoundation                      0x00007fffafde96fb __exceptionpreprocess + 171     1   libobjc.a.dylib                     0x00007fffc45f0a2a objc_exception_throw + 48     2   corefoundation                      0x00007fffafe669a5 +[nsexception raise:format:] + 197     3   foundation                          0x00007fffb17d1d84 nskvodeallocate + 293     4   avfoundation                        0x00007fffac67dabe -[avcapturedeviceinput _setdevice:exceptionreason:] + 304     5   avfoundation                        0x00007fffac5ae914 -[avcapturedeviceinput dealloc] + 39     6   corefoundation                      0x00007fffafe53a7b -[__nssingleobjectarrayi dealloc] + 43     7   libobjc.a.dylib                     0x00007fffc45e5e60 _zn12_global__n_119autoreleasepoolpage3popepv + 808     8   corefoundation                      0x00007fffafd20d66 _cfautoreleasepoolpop + 22     9   corefoundation                      0x00007fffafd612c5 __cfrunlooprun + 2229     10  corefoundation                      0x00007fffafd607b4 cfrunlooprunspecific + 420     11  hitoolbox                           0x00007fffaf2fcfbc runcurrenteventloopinmode + 240     12  hitoolbox                           0x00007fffaf2fcdf1 receivenexteventcommon + 432     13  hitoolbox                           0x00007fffaf2fcc26 _blockuntilnexteventmatchinglistinmodewithfilter + 71     14  appkit                              0x00007fffad9e6b79 _dpsnextevent + 1093     15  appkit                              0x00007fffae0fc1c3 -[nsapplication(nsevent) _nexteventmatchingeventmask:untildate:inmode:dequeue:] + 1637     16  libopencv_highgui.2.4.dylib         0x000000010d79c0a6 cvwaitkey + 402     17  cv2.so                              0x000000010cfa3ce1 _zl16pyopencv_waitkeyp7_objects0_s0_ + 103     18  python                              0x000000010cc001ab pyeval_evalframeex + 27003     19  python                              0x000000010cbf963a pyeval_evalcodeex + 1617     20  python                              0x000000010cbf8fe3 pyeval_evalcode + 48     21  python                              0x000000010cc1cc04 run_mod + 53     22  python                              0x000000010cc1cca7 pyrun_fileexflags + 133     23  python                              0x000000010cc1c7f8 pyrun_simplefileexflags + 702     24  python                              0x000000010cc2deba py_main + 3094     25  libdyld.dylib                       0x00007fffc4ecd255 start + 1     26  ???                                 0x0000000000000002 0x0 + 2 ) libc++abi.dylib: terminating uncaught exception of type nsexception abort trap: 6

i error consistently when run iterm or terminal. inconsistently xterm.

i same error when using cam.release() prior calls cam.open(0).

import cv2  cam = cv2.videocapture(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1) cam.release()  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1) cam.release()  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1) cam.release()  cam.open(0) ret, im = cam.read() cv2.imshow('im', im) cv2.waitkey(1) cam.release()

in cap_avfoundation_mac.mm, function cvcapturecam::stopcapturedevice, comment line:

[mcapturedevice release];

-

Comments

Post a Comment

Popular posts from this blog

java - SSE Emitter : Manage timeouts and complete() -

i writing web app multiple listeners(evcentsource sse clients js) connected server . want store sse emitter per connected listener : can done in memory or other means assigning id each client able achieve far now question ; how send response/event specific client connected web app ? while doing sseemmiters stored either getting completed or timed out. how prevent ? how keep sseemmiter available open infinite time (till client closes) , send events selectively .
Read more

jquery - uncaught exception: DataTables Editor - remote hosting of code not allowed -

i'm trying implement crud operation using datatableseditor using datatables.but i'm getting error messages: 1)uncaught exception: datatables editor - remote hosting of code not allowed. please see http://editor.datatables.net details on how purchase editor license 2)typeerror: a.editor undefined 3) $.fn.datatable.editor not constructor" what reason? here configuration: <%@ page language="java" contenttype="text/html; charset=iso-8859-1" pageencoding="iso-8859-1"%> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> <title>insert title here</title> <link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.12/css/jquery.datatables.min.css"> <link re...
Read more

java - How to resolve error - package com.squareup.okhttp3 doesn't exist? -

i trying convert json java object use of gson in maven, following youtube video guidance - https://www.youtube.com/watch?v=vqgghm9pwe0 , theres error occurs when in main class error - package com.squareup.okhttp3 doesn't exist. code below: java package com.codebeasty.json; import com.squareup.okhttp3.okhttpclient; public class main { private static okhttpclient client = new okhttpclient(); public static void main (string [] args) { } } i put in dependency in pom.xml: <dependencies> <dependency> <groupid>com.squareup.okhttp3</groupid> <artifactid>okhttp</artifactid> <version>3.4.2</version> </dependency> <dependency> <groupid>com.google.code.gson</groupid> <artifactid>gson</artifactid> <version>2.8.0</version> </dependency> </dependencies> i dont understand why doesn't recognize com.squareup. there may need download? have downl...
Read more