How to use gdr in GStreamer?

[Towe_Roll]

hello, How to use gdr in GStreamer?

[DaneLLL]

Hi,
There is no existing implementation in gstreamer nvv4l2h264enc/nvv4l2h265enc plugins. Please refer to the code in

/usr/src/jetson_multimedia_api/samples/01_video_encode/

And port it to the plugins. The plugins are open source. Please download the source code package and check.

[Towe_Roll]

@DaneLLL

plugins

hello, i use gst-nvvideo4linux2_src.tbz2 to make, but happen this error, why ? i dont find this .h

[DaneLLL]

Hi,
Please check if you have installed jetson_multimedia_api package. The file is at

/usr/src/jetson_multimedia_api/include/gstnvdsseimeta.h

[Towe_Roll]

hello, I want to know if I set gdr to be set all the time? Or it can be configured once, I see the demo is in the “while (1)” inside

[DaneLLL]

Hi,
You would need to periodically set the parameters to enable GDR stream periodically.

[Towe_Roll]

@DaneLLL

数以定期启用 GDR 流。

hello ,I added “enable-gdr” in imitation of this other attribute, but I failed to use it, can you provide a little idea, this file is where I modified gst-nvvideo4linux2_src.tbz2

diff.txt (4.3 KB)

[Towe_Roll]

I want it to always be in gdr format

[DaneLLL]

Hi,
Since the code is open source, you may add prints to debug further.

The implementation is ready in jetson_multimedia_api. May also consider use jetson_multimedia_api to develop your use-case.

[Towe_Roll]

Hello, my current project uses GStreamer to implement the whole process, so I would like to try if I can add it so as not to modify too many things to affect production，why don’t you add this in GStreamer，thank you

[DaneLLL]

Hi,
Since the part is public, it would be great if you can do implementation by referring to the sample.

[Towe_Roll]

How to set nGDRFrames?

When there is no setting, it is normal but not gdr. After setting, it cannot be used. How to get it

[DaneLLL]

Hi,
Please set the parameters:

VEnc_gdr_params.nGDRFrames = ctx.gdr_num_frames;
VEnc_imeta_param.flag |= V4L2_ENC_INPUT_GDR_PARAM_FLAG;
VEnc_imeta_param.VideoEncGDRParams = &VEnc_gdr_params;

to initial frame of the GDR cycle. Once the cycle is done, please set the next cycle.

[Towe_Roll]

hello, i changed"gst_v4l2_video_enc_loop", now it has been compiled and can be called normally, but the recorded video is still in IDR format, may I ask what else I need to modify? Thank you

[DaneLLL]

Hi,
You are setting the parameter to encoded h264 stream. Please set it to input YUV frames.