About dec+enc performance in multimediaAPI problem:

About dec+enc performance in multimediaAPI problem:
device: TX1
jetpak version: 3.0
1、In the manner of gstreamer’s command, test can achieve six channles( dec + enc 1080P 25fps);
2、but In the manner of multimediaAPI , test can achieve four channles( dec + enc 1080P 25fps);
why? is some issue about : gstreamer is higher than multimediaAPI ?
I am very confusing…

Hi zbit, are you on r24.2.1 or r28.1? Do you do h264 to h265 transcoding?

Here is a post about transcoding:
https://devtalk.nvidia.com/default/topic/979908/jetson-tx1/gstreamer-transcoding-performance-issue/post/5033461/#5033461

zbit,

JetPack 3.0 is only for Jetson TX2 not for TX1. May be you are confused with the version. Could be JatPack 2.3.1?

There shouldn’t be such difference,
1、In the manner of gstreamer’s command, test can achieve six channles( dec + enc 1080P 25fps);
2、but In the manner of multimediaAPI , test can achieve four channles( dec + enc 1080P 25fps);

Could you point out where did you read this statement in the document? Again, will be Thanks.

such difference is not read from document. the result just by test.
thank you.

I have test in H264 stream.

Hi zbit,
So you decode a 1080p25 H264 stream into YUVs, and then encode into 1080p25 H264 stream?

Hi zbit,

Have you clarified the cause and resolved the problem?
Any result can be shared?

Thanks