High CPU consumption

[Matteo Foglio]

Good morning,

I am trying to decode several video streams using GStreamer and Python. I
can't tell you how much I will appreciate your help!

Here's my code:

self.video_capture = cv2.VideoCapture(self.pipeline,
cv2.CAP_GSTREAMER)if self.video_capture.isOpened() is False:    raise
Errorwhile True:    status, image = self.video_capture.read()    # do
slow stuff


I am encountering the following issue:

*Option 1*
If I use the pipeline:
self.pipeline = f"rtspsrc location={self.url} latency=10 ! rtph264depay !
h264parse ! avdec_h264 ! videoconvert ! appsink max-buffers=1 drop=true"

I get extremely high CPU consumption. Also, I am probably decoding more
frames than the number my application can actually consumes.


*Option 2*
If I use this pipeline
self.pipeline = f"rtspsrc location={self.url} latency=10 ! rtph264depay !
h264parse ! avdec_h264 ! videoconvert ! appsink max-buffers=1 drop=false"

After a few hours the application is returning me old frames. E.g. at 9am
my application was receiving frames at nighttime (from the night before).


Is this the expected behavior? How can I solve this problem?

Thank you a lot,

Matteo
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