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Temporarily workaround for OpenCV >= 3.4.2 bug that doesn't properly release the video device

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This commit is contained in:
Fabio Manganiello 2019-03-17 01:26:06 +01:00
parent 5942a7cd84
commit 3af30075e3
1 changed files with 5 additions and 0 deletions
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5
platypush/plugins/camera/__init__.py
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@ -136,6 +136,10 @@ class CameraPlugin(Plugin):
self._recording_threads = {} # device_id => Thread map self._recording_threads = {} # device_id => Thread map
self._recording_info = {} # device_id => recording info map self._recording_info = {} # device_id => recording info map
# Temporary workaround for bug on OpenCV >= 3.4.2 that doesn't
# properly release the device, see https://github.com/opencv/opencv/issues/12301#issuecomment-415801564
if tuple(map(int, cv2.__version__.split('.'))) >= (3, 4, 2):
os.environ['OPENCV_VIDEOIO_PRIORITY_MSMF'] = '0'
def _init_device(self, device_id, frames_dir=None, **info): def _init_device(self, device_id, frames_dir=None, **info):
self._release_device(device_id) self._release_device(device_id)
@ -172,6 +176,7 @@ class CameraPlugin(Plugin):
if device_id in self._recording_info: if device_id in self._recording_info:
del self._recording_info[device_id] del self._recording_info[device_id]
self.logger.info("Device {} released".format(device_id))
def _store_frame_to_file(self, frame, frames_dir, image_file): def _store_frame_to_file(self, frame, frames_dir, image_file):