Segmentation Fault dqEvent and query_and_set_capture

[hkada]

I tried to implement RTSP receiver and resender.
My program achieved receive RTSP packets.
They are elementary stream.
I need to set decoder. But I call dqEvent(), it occurs segmentation fault.
And when I comment out dqEvent, query_and_set_capture() is segmentation fault.

When do I need dqEvent() and query_and_set_capture()?
How to initialize output_plane buffer of decoder with empty buffer ?

[DaneLLL]

Hi,
Looks like you are implementing the use-case in jetson_multimedia_api? For video decoding, you can refer to

/usr/src/jetson_multimedia_api/samples/00_video_decode
/usr/src/jetson_multimedia_api/samples/unittest_samples/decoder_unit_sample

For ensuring the received and depayed h264/h265 stream is decode-able, you may save it to a file and check if the file can be decoded through the samples.

[hkada]

Hi, I checked the sample(00_video_decode).
But it is based on file input. So, I confused how to initialize output plane buffer of decoder.

[DaneLLL]

Hi,
In your application, you should receive RTSP packets and depay the packets to h264 stream. Is it possible to save it to a file? And then try to decode it through samples, to check if the h264 stream is valid.

[hkada]

Hi,
My application could save as file. But it is inputted dummy data at first.

[DaneLLL]

Hi,
We would suggest follow the samples to develop your use-case. The samples are tested/verified in each release and should work fine, if you follow the call flows.

If you suspect it is something wrong in our release, please share a way(patch and steps to run reference samples) so that we can reproduce it and do investigation.

[hkada]

I solve my problem with using dummy data.
So, there is no problem. Thank you.