V4l2 driver bug

Please provide complete information as applicable to your setup.

**• Hardware Platform (Jetson / GPU)GTX 1660
• DeepStream Version**deepstream-5.0

• JetPack Version (valid for Jetson only)
• TensorRT Version****7.0
**• NVIDIA GPU Driver Version (valid for GPU only)**440.33.01
• Issue Type( questions, new requirements, bugs)

0:18:23.269639416 2747 0x7f3e94034370 ERROR v4l2 gstv4l2object.c:2074:gst_v4l2_object_get_interlace_mode: Driver bug detected - check driver with v4l2-compliance from http://git.linuxtv.org/v4l-utils.git

• How to reproduce the issue ? (This is for bugs. Including which sample app is using, the configuration files content, the command line used and other details for reproducing)
The code is test3 (rtsp in)(infer)(rtsp out)

• Requirement details( This is for new requirement. Including the module name-for which plugin or for which sample application, the function description)

It is not a bug. It is just a warning. Sorry for misleading! Please ignore it, it will not impact the application.

1.There is a ERROR, is that ok?

2.It is ok when I use 3 pipeline which is used in test3. But it is not ok when I use 4 pipeline which is used in test3.
the err is as bellow:

Error details: gstv4l2object.c(4070): gst_v4l2_object_set_format_full (): /GstPipeline:dstest3-pipeline/nvv4l2h264enc:h264-encoder:
Call to S_FMT failed for YM12 @ 1920x1080: Unknown error -1
Returned, stopping playback
Deleting pipeline

  1. Yes. It is OK.
  2. You are using GeForce GTX 1660 Ti / 1660, right? There is video encoding in your pipeline( since you are using rtsp out). GTX 1660 can only support maximum 3 concurrency streams.
    https://developer.nvidia.com/video-encode-decode-gpu-support-matrix

Thank yoiu for reply