onVideoReceived and onMetadataReceived not synchronized about jmisb HOT 6 CLOSED

Do you have a sample file to reproduce this?

Also, can you show the code you are using?

Does it happen with the viewer application?

from jmisb.

It's appear both in viewer application and in my own application with your API (really nice by the way)

Sample data are the FFMPEG videos tests for KLV (DayFlight.mpeg, NightFilghtIR.mpeg)
After better check it's looks more metadata decoding error blocking thread for a while before try decode again. Error thrown :

• org.jmisb.api.klv.st0601.UasDatalinkMessage - Target Width encoding is a 2-byte unsigned int

But I find 2 others sample files working well with no error, so maybe FFMPEG sample files are just corrupted.

Sorry for reporting bug too fast and thanks for your work and fast answer.

sample data KO 1 DayFlight
sample data KO 2 NightFilghtIR
sample data OK 3 Truck.ts
sample data OK 4 CheyenneVAhospital

Well working sample :

Metadata stuck (~17s) - prob file corrupted

from jmisb.

The target width is meant to be encoded as two bytes (i.e. it is a uint16 that gets mapped to a range of 0..10000). So that data is not valid. If that particular file is important to you, it wouldn't be hard to work around.

Are you seeing problems on production data?

If you want some other test samples, see https://data.kitware.com/#user/57194fc68d777f4fe2c91709/folder/62197cb54acac99f4264698a

from jmisb.

Maybe the bug in width encoding have been fix since 2009 on MX gimbal series, because it's not looks appear on sooner MX series videos.
I am not yet in production, but since I do deep test I will give you a feedback.

I already know that I will have to also deal with multiple KLV stream inside videos. So I will see how jMISB react and may send a pull request if needed.

Thanks for datas - more tests less surprise in production :)
Have a good day

from jmisb.

Is anything more required on this ticket?

from jmisb.

Sorry no. I close it.

from jmisb.