JPEG encoder instances working simultaneously at 4K resolution - DM8168

Carlos Gomez V.

Hi,

I has been able to get one JPEG encoder instance working with 4K frames on the M3, while trying to use two instances simultaneously I detected that the IVAHD scheduler was assigning the two instances to the same IVAHD unit queue. After that, I modified the IVAHD scheduler in order to assign each encoder instance to different IVAHD units (DM8168 has three IVAHD units) expecting to get them working in parallel. I had no success, it seems that the M3 doesn't response and the gstreamer pipeline that I'm using gets stuck without processing any buffer.

Has someone tried something similar? Should this be possible on DM8168?

Regards,

Carlos

over 9 years ago

0 Carlos Gomez V. over 9 years ago

Prodigy 160 points

Actually, I'm down scaling the 4K frame to 1080p for the second JPEG encoder instance. So, currently I can encode a 4K frame properly but if I add a second JPEG encoding path using a tee element to down scale the 4K frames to 1080p and send that to a second JPEG encoder element, the pipeline gets stuck.

0 Margarita Gashova over 9 years ago in reply to Carlos Gomez V.

TI__Guru* 80190 points

Hello,

What is the software release that you are using here? I see that you are using gstreamer so I assume that you are using EZSDK but in EZSDK we does not have jpeg encoder on M3.

BR
Margarita

0 Carlos Gomez V. over 9 years ago in reply to Margarita Gashova

Prodigy 160 points

Hi Margarita,

We were able to integrate the JPEG encoder version 01.00.04.00 into the EZSDK 5.05.02.00 in order reduce the ARM load when encoding JPEGs, then, the codec was exposed through openMax and we can use it from gstreamer.

Thanks,

Carlos

0 Margarita Gashova over 9 years ago in reply to Carlos Gomez V.

TI__Guru* 80190 points

Hello,

The DM8168 has 3xHDVICP modules.

Each module is scalable in terms of resolutions and channels supported, so for example one HDVICP2 module could support 1x 1080p60 or 2x 1080p30 or 4x 720p30 or 10x SD h.264 encodes/decodes.

Margarita

0 Carlos Gomez V. over 9 years ago in reply to Margarita Gashova

Prodigy 160 points

Thanks,

Now I have it working, the problem was at a gstreamer level, the EOS event was not being handled properly for the second JPEG encoder instance. I was using OMX plugins for gstreamer-1.0.

-Carlos

0 Margarita Gashova over 9 years ago in reply to Carlos Gomez V.

TI__Guru* 80190 points

Hello Carlos,

I am glad that this issue is resolved. Thank you for sharing the answer.

BR
Margarita

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JPEG encoder instances working simultaneously at 4K resolution - DM8168