Streamon Error
kherath6 opened this issue · 12 comments
I'm trying to use the streamon function, it seems to open up, however it gives me an error message and the programs stops.
My code is given below, would appreciate a response on a possible fix.
from easytello import tello
mytello = tello.Tello()
Sending command: command
Response: b'ok'
tello.streamon()
Traceback (most recent call last):
File "", line 1, in
AttributeError: module 'easytello.tello' has no attribute 'streamon'
mytello.streamon()
Sending command: streamon
Response: b'ok'
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] non-existing PPS 0 referenced
[h264 @ 0x7fb3aa252e00] decode_slice_header error
[h264 @ 0x7fb3aa252e00] no frame!
2019-07-12 23:18:32.655 python[54965:1536194] WARNING: NSWindow drag regions should only be invalidated on the Main Thread! This will throw an exception in the future. Called from (
0 AppKit 0x00007fff400d67eb -[NSWindow(NSWindow_Theme) _postWindowNeedsToResetDragMarginsUnlessPostingDisabled] + 378
1 AppKit 0x00007fff400d3bdb -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1479
2 AppKit 0x00007fff40192f95 -[NSPanel _initContent:styleMask:backing:defer:contentView:] + 50
3 AppKit 0x00007fff400d360e -[NSWindow initWithContentRect:styleMask:backing:defer:] + 45
4 AppKit 0x00007fff40192f4a -[NSPanel initWithContentRect:styleMask:backing:defer:] + 64
5 QtGui 0x00000001091981fc -[QCocoaPanel initWithContentRect:styleMask:backing:defer:] + 76
6 QtGui 0x000000010919ea81 -[NSWindow(QWidgetIntegration) qt_initWithQWidget:contentRect:styleMask:] + 81
7 QtGui 0x00000001091900da _ZL20qt_mac_create_windowP7QWidgetjmRK5QRect + 423
8 QtGui 0x000000010918fd6a _ZN14QWidgetPrivate18qt_create_root_winEv + 64
9 QtGui 0x0000000109191af3 _ZN14QWidgetPrivate10create_sysElbb + 917
10 QtGui 0x00000001092217fc _ZN7QWidget6createElbb + 580
11 QtGui 0x000000010922051c _ZN14QWidgetPrivate4initEP7QWidget6QFlagsIN2Qt10WindowTypeEE + 362
12 QtGui 0x0000000109220309 _ZN7QWidgetC2EPS_6QFlagsIN2Qt10WindowTypeEE + 121
13 QtGui 0x00000001091a9c03 _ZN14QDesktopWidgetC2Ev + 31
14 QtGui 0x00000001091ebdd4 _ZN12QApplication7desktopEv + 50
15 QtGui 0x00000001091a5cae _Z9flipPointRK7CGPoint + 32
16 QtGui 0x0000000109185af8 _ZN7QCursor3posEv + 46
17 QtGui 0x00000001091fb3f5 _ZN11QMouseEventC2EN6QEvent4TypeERK6QPointN2Qt11MouseButtonE6QFlagsIS6_ES7_INS5_16KeyboardModifierEE + 79
18 QtGui 0x00000001096c4204 _ZN20QGraphicsViewPrivateC2Ev + 296
19 QtGui 0x00000001096c76c5 _ZN13QGraphicsViewC2EP7QWidget + 37
20 cv2.cpython-37m-darwin.so 0x000000010382db2f _ZN15DefaultViewPortC2EP8CvWindowi + 31
21 cv2.cpython-37m-darwin.so 0x00000001038291bd _ZN8CvWindowC2E7QStringi + 397
22 cv2.cpython-37m-darwin.so 0x0000000103820ed3 _ZN11GuiReceiver12createWindowE7QStringi + 227
23 cv2.cpython-37m-darwin.so 0x0000000103820d35 cvNamedWindow + 533
24 cv2.cpython-37m-darwin.so 0x0000000103823308 _ZN11GuiReceiver9showImageE7QStringPv + 168
25 cv2.cpython-37m-darwin.so 0x00000001038231be cvShowImage + 558
26 cv2.cpython-37m-darwin.so 0x000000010381bb8f _ZN2cv6imshowERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEERKNS_11_InputArrayE + 463
27 cv2.cpython-37m-darwin.so 0x0000000102c5e318 ZL18pyopencv_cv_imshowP7_objectS0_S0 + 424
28 python 0x00000001021f91b8 _PyMethodDef_RawFastCallKeywords + 392
29 python 0x0000000102335e42 call_function + 306
30 python 0x0000000102333aec _PyEval_EvalFrameDefault + 46092
31 python 0x00000001021f88d5 function_code_fastcall + 117
32 python 0x00000001021fbce2 method_call + 130
33 python 0x00000001021f9752 PyObject_Call + 130
34 python 0x0000000102333d58 _PyEval_EvalFrameDefault + 46712
35 python 0x00000001021f88d5 function_code_fastcall + 117
36 python 0x0000000102335dc7 call_function + 183
37 python 0x0000000102333a56 _PyEval_EvalFrameDefault + 45942
38 python 0x00000001021f88d5 function_code_fastcall + 117
39 python 0x0000000102335dc7 call_function + 183
40 python 0x0000000102333a56 _PyEval_EvalFrameDefault + 45942
41 python 0x00000001021f88d5 function_code_fastcall + 117
42 python 0x00000001021fbce2 method_call + 130
43 python 0x00000001021f9752 PyObject_Call + 130
44 python 0x00000001024178cb t_bootstrap + 123
45 python 0x000000010239e707 pythread_wrapper + 39
46 libsystem_pthread.dylib 0x00007fff6eaf32eb _pthread_body + 126
47 libsystem_pthread.dylib 0x00007fff6eaf6249 _pthread_start + 66
48 libsystem_pthread.dylib 0x00007fff6eaf240d thread_start + 13
)
2019-07-12 23:18:32.726 python[54965:1536194] WARNING: nextEventMatchingMask should only be called from the Main Thread! This will throw an exception in the future.
2019-07-12 23:18:32.726 python[54965:1536194] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1575.12/Foundation/Misc.subproj/NSUndoManager.m:361
2019-07-12 23:18:32.728 python[54965:1536194] *** Assertion failure in +[NSUndoManager _endTopLevelGroupings], /BuildRoot/Library/Caches/com.apple.xbs/Sources/Foundation/Foundation-1575.12/Foundation/Misc.subproj/NSUndoManager.m:361
2019-07-12 23:18:32.732 python[54965:1536194] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '+[NSUndoManager(NSInternal) _endTopLevelGroupings] is only safe to invoke on the main thread.'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff42a87cfd __exceptionPreprocess + 256
1 libobjc.A.dylib 0x00007fff6d131a17 objc_exception_throw + 48
2 CoreFoundation 0x00007fff42aa2a1a +[NSException raise:format:arguments:] + 98
3 Foundation 0x00007fff44d41c85 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 194
4 Foundation 0x00007fff44c74cfa +[NSUndoManager(NSPrivate) _endTopLevelGroupings] + 473
5 AppKit 0x00007fff4004f915 -[NSApplication run] + 916
6 QtGui 0x00000001091abe44 _ZN26QEventDispatcherMacPrivate22ensureNSAppInitializedEv + 128
7 QtGui 0x00000001091ab5ff _ZN19QEventDispatcherMac13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE + 777
8 QtCore 0x0000000109e0dfdc _ZN16QCoreApplication13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE + 80
9 cv2.cpython-37m-darwin.so 0x00000001038208ef cvWaitKey + 207
10 cv2.cpython-37m-darwin.so 0x0000000103820ef7 _ZN11GuiReceiver12createWindowE7QStringi + 263
11 cv2.cpython-37m-darwin.so 0x0000000103820d35 cvNamedWindow + 533
12 cv2.cpython-37m-darwin.so 0x0000000103823308 _ZN11GuiReceiver9showImageE7QStringPv + 168
13 cv2.cpython-37m-darwin.so 0x00000001038231be cvShowImage + 558
14 cv2.cpython-37m-darwin.so 0x000000010381bb8f _ZN2cv6imshowERKNSt3__112basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEERKNS_11_InputArrayE + 463
15 cv2.cpython-37m-darwin.so 0x0000000102c5e318 ZL18pyopencv_cv_imshowP7_objectS0_S0 + 424
16 python 0x00000001021f91b8 _PyMethodDef_RawFastCallKeywords + 392
17 python 0x0000000102335e42 call_function + 306
18 python 0x0000000102333aec _PyEval_EvalFrameDefault + 46092
19 python 0x00000001021f88d5 function_code_fastcall + 117
20 python 0x00000001021fbce2 method_call + 130
21 python 0x00000001021f9752 PyObject_Call + 130
22 python 0x0000000102333d58 _PyEval_EvalFrameDefault + 46712
23 python 0x00000001021f88d5 function_code_fastcall + 117
24 python 0x0000000102335dc7 call_function + 183
25 python 0x0000000102333a56 _PyEval_EvalFrameDefault + 45942
26 python 0x00000001021f88d5 function_code_fastcall + 117
27 python 0x0000000102335dc7 call_function + 183
28 python 0x0000000102333a56 _PyEval_EvalFrameDefault + 45942
29 python 0x00000001021f88d5 function_code_fastcall + 117
30 python 0x00000001021fbce2 method_call + 130
31 python 0x00000001021f9752 PyObject_Call + 130
32 python 0x00000001024178cb t_bootstrap + 123
33 python 0x000000010239e707 pythread_wrapper + 39
34 libsystem_pthread.dylib 0x00007fff6eaf32eb _pthread_body + 126
35 libsystem_pthread.dylib 0x00007fff6eaf6249 _pthread_start + 66
36 libsystem_pthread.dylib 0x00007fff6eaf240d thread_start + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Abort trap: 6
Hi, what OS are you using? This seems to be an issue with calling openCV so the environment may come into play
Hi Virodroid,
I'm using Mac os.
I have all the packages installed in the environment.
I haven't been able to test easyTello on MacOS yet. Perhaps it doesn't like the way I'm calling OpenCV. I'll see if I can track down a Mac to do some testing on in future. Everything seems to work fine on Windows 10 and Ubuntu
Comments
@0bscur3
0bscur3 commented 13 days ago
Hi,
I was trying to get the example.py to work, but video stream does not seem to work. I am using python 3.6.9 on Mac OS.
This is my stdout:
pygame 1.9.4
Hello from the pygame community. https://www.pygame.org/contribute.html
Send command: command
Response: ok
Send command: speed 10
Response: ok
Send command: streamoff
Response: ok
Send command: streamon
Response: ok
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] non-existing PPS 0 referenced
[h264 @ 0x7f86968c6600] decode_slice_header error
[h264 @ 0x7f86968c6600] no frame!
[h264 @ 0x7f869801c800] error while decoding MB 48 23, bytestream -5
[h264 @ 0x7f869801fe00] error while decoding MB 30 41, bytestream -8
Thanks!
@acdgr8
acdgr8 commented 1 hour ago
Hi, I'm getting a similar error when trying to switch on the stream. Interestingly, I am able to extract frames out of it using the following code -
from djitellopy import Tello
import cv2
import time
tello =Tello()
tello.connect()
tello.takeoff()
tello.streamon()
count = 0
vidcap = cv2.VideoCapture(tello.get_udp_video_address())
success,image = vidcap.read()
success = True
while success:
vidcap.set(cv2.CAP_PROP_POS_MSEC,(count*1000))
success,image = vidcap.read()
print ('Read a new frame: ', success)
cv2.imwrite("./img/frame%d.jpg" % count, image) # save frame as JPEG file
count = count + 5
And the frames are being stored correctly. Can someone please help out why the videostream is not being displayed in a separate window.
Thanks in advance!
Exactly the same issue here. Any progress on this please?
Me too, I try too run it with macOS,
h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] decode_slice_header error [h264 @ 0x7f99b384ac00] no frame! [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] decode_slice_header error [h264 @ 0x7f99b384ac00] no frame! .... and so on
Me too, I try too run it with macOS,
h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] decode_slice_header error [h264 @ 0x7f99b384ac00] no frame! [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] non-existing PPS 0 referenced [h264 @ 0x7f99b384ac00] decode_slice_header error [h264 @ 0x7f99b384ac00] no frame! ....and so on
Tengo el mismo problema.... ¿Has encontrado alguna solución?
Gracias
@Virodroid i get the same errors and issue. seems like all 3rd party tello libraries needs to be updated, maybe caused by latest tello firmware update
Having the same issue here. Any news on this?
@Virodroid any updates on this issue?
Unfortunately, I'm not currently in possession of a DJI Tello to continue development of this library. So I won't be able to make or test any updates going forward. That's why this repo isn't really under "active" development anymore.
Turns out the issue for me was that opencv was opening windows in a separate thread. MacOS does not allow (or work well with) GUI operations outside the main thread. Workaround was to move all GUI operations to the main thread.