Bug in property read "src-crop" in nvvideoconvert

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

•|Hardware Platform (Jetson / GPU): GPU
•|DeepStream Version: 5.0
•|TensorRT Version 7.1.3.4
•|NVIDIA GPU Driver Version (valid for GPU only) 440.33.01
•Issue Type( questions, new requirements, bugs) bug
**•How to reproduce the issue ? **

The src-crop value in nvvideoconvert is read back wrong:

g_print("src-crop (%d): %s\n", i, crop_string);
g_object_set (G_OBJECT (vidconv[i]), "src-crop", crop_string, NULL);
g_object_get (G_OBJECT (vidconv[i]), "src-crop", &ret, NULL);
g_print("src-crop: %s\n", i, ret);

Output:

src-crop (0): 0:0:960:540
src-crop: 0:540:960:540

The cropping is executed properly, though, so it’s just the read back that seems to have a bug-

3

Yes. You are right. The “src-crop” property_get is wrong. We will fix it.

4

I also found that.

Annother question:
How to dynamicly set the crop property when the pipeline was created already!

Thanks!

5

No. This property can not be changed dynamically. It can only be changed when the pipeline state is READY or NULL.

6

So the only way is to rebuild the pipeline from start?

7

The way is to change the pipeline state to READY, change the property, and then change the pipeline state to PLAYING.