L4T info r32 5.1 , decode h264 output not right!

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi ervery one !
I build my app in tx2 board L4T info r32.2.0 , my app have output yuv420 raw data is right, but in other tx2 board L4T info r32.5.1 , my app have output yuv420 raw data is not right, content image is scaled.
I did my app base on14_multivideo_decode example. please help me ! Thanks!

3

Hi,
Please check if the issue can be reproduced by running 14_multivideo_decode. If the sample can be run to reproduce the issue, please provide the command.

4

I build my app in tx2 r32.2.0 and run in tx2 r32.5.1

in my log, r32.5.1 , block linear buffer , I use NvBufferGetParams

  •        pixel_format =26 

  •        num_planes =2 

  •        width[0] =4096 height[0]=2160 pitch[0]=8192

  •        width[1] =2048 height[1]=1080 pitch[1]=8192

and in r32.2.0 output is

  •       pixel_format =26 

  •       num_planes =2 

  •       width[0] =4096 height[0]=2160 pitch[0]=4096

  •       width[1] =2048 height[1]=1080 pitch[1]=4096

i don’t know why the output is different ? please explain me ! Thanks !

5

Hi,
One possible cause is that you don’t build the app with header files of r32.5.1. If you install through SDKManager you will see samples in

/usr/src/jetson_multimedia_api/

Please build with header files in

/usr/src/jetson_multimedia_api/include/
6

my tx2 r32.5.1 don’t have /usr/src/jetson_multimedia_api folder exist , Can I install it through any command terminal ?

7

Hi,

Please try

$ sudo apt install nvidia-l4t-jetson-multimedia-api