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dactylroot avatar dactylroot commented on July 19, 2024

I agree. I updated to avoid this.

Primary usage is to try to grab the most recent frame for asynchronous work. Unfortunately, opencv-python doesn't seem to support buffer management (that answer is incorrect, you can't set the buffer size). As a workaround, and to avoid adding additional threads or inline trying to empty the buffer before every read, I closed the connection instead.

Let me know if you have an idea to limit that CV buffer

from rtsp.

crackwitz avatar crackwitz commented on July 19, 2024

if you read slower than data is generated, that's a problem that should be addressed properly.

proper solution is to either run a thread that continuously receives and keeps the most recent frame around, or to use a library that's made for this (ffmpeg, gstreamer, directshow...). OpenCV is a library for computer vision, not a media API.

OpenCV seems open to having its videoio module improved. they (Intel) won't spend time on that themselves because they focus their efforts on the actual purpose of OpenCV.

from rtsp.

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