Video corruption after about an hour of transcoding.

[Brent_B_]

We have a media transcode operation that runs through a user plugin to perform a DXVA alpha blend.  The video pipeline is similiar to this:

RTSP Unwrap -> Decode -> Alpha Blend -> VPP Colorspace conversion -> Encode -> FFMpeg container with segmentation

This pipeline has run for multiple weeks at a time (using an RTSP 1080p/60 h.264 camera) on the May video driver (build 3621).  However recently we have tried using the newer graphics drivers (August, as well as the latest version from 10/3/14 -- 3960).  After about an hour or transcoding the video gets heavily corrupted.  There are many updates to the graphics driver which we would like to take advantage of however this corruption is forcing us to stay on build 3621.

Has anyone experienced issues with the Media SDK on new graphics drivers?

Thanks in advance,

--Brent

[Harshdeep_B_Intel]

Hi,

We have many changes from Driver build 3621 -> Build 3960. So we need more information about the platform to root cause the corruption issue you are seeing with Build 3960, If you can send us the logs from these tools. I will be able to further look into the issue and update you with further information. 

Thanks,

[Brent_B_]

Thanks for the quick reply,

Attached are logs from the 3621 version.  Tracer is pretty chatty so not sure we want to do it for an hour; however I will get a similar version of the log from that driver shortly.

[Brent_B_]

Here are the logs for the 3960 version of driver with the same application (Note this is when the app starts up not after it has been running for an hour).

[Harshdeep_B_Intel]

Thank you for the logs. We will look into the issue and update back with  further information. 

Thanks,

[Brent_B_]

Attached is a new log, this one is a per frame capture during corruption (after it had been running for over an hour on the 3960 driver).

[Brent_B_]

Attached is a tracer frame level log from the 3621 driver after it has run all night long.

[Harshdeep_B_Intel]

Hi,

Thank you for the logs. We are not able reproduce the issue from the tracer logs using the same pipeline on our side. Can you please provide us more info on the application you are using or a package that will help us reproduce the issue you are seeing. You can send me your package using PM. 

Thanks,

[Harshdeep_B_Intel]

Let us know which application are you using if it is samples or tutorials. In general, we recommend you to use our samples and tutorials to reproduce the issue. Let us know if you can reproduce the issue you are seeing with driver Build ->3960 with the samples/tutorials. This information will help us further look into the issue. 

Thanks,

[Brent_B_]

Will do, this is with a custom application so I will need to make a smaller application to replicate it so I can transfer it.  The samples do not take a continuous video stream so are not conducive to replicate the issue (they all work on a file).

I will get a suitable repro and post it in the next week.

Thanks much!

[Harshdeep_B_Intel]

I suggest as a starting point for the replication of the issue to use one of our samples Video Decoding Sample/Full Transcoding Sample which already has console applications which already perform decoding, color conversion and full scale transcoding respectively . 

Thanks,

[Surbhi_M_Intel]

Hi Brent, 

Following up on this issue- Are you still seeing the same behavior? There has been many bug fixes in the driver,you might want to update to the latest driver and check. 

Thanks,
Surbhi