Kontron KTT20-pITX Manual de usuario descargar pdf (Pagina 36)

KTD-S0045-D Page 32 Linux® BSP

KTT20/pITX Software Guide

9 Linux

BSP

9.1 User Login Arguments

For both, serial remote system or normal display manager login, the arguments are the same.

Serial remote system (necessary input with green color):

ktt20 login: ktt20

Password: ktt20

Display manager login (necessary input with green color):

Note: there is no 'root' password defined. If you need root privileges use 'sudo' and the user password.

9.2 Video Decoding

Hardware accelerated video decoding requires the GStreamer/OpenMAX framework and a special NVIDIA

nvgstplayer application or gst-launch as a command line tool. KONTRON Technology A/S does not know

another programs which can play a H.264 main profile video stream (720p) without dropouts (e.g. Totem

Movie Player, MPlayer or VLC).

The following table gives an overview about the limitations:

Video Format Profile / Level Max. Resolution / Frame Rate Max. Throughput Comment

DivX 4/5/6 1080p HD 1920 x 1080 / 30 fps

10 Mbps

Xvid Highdef 1920 x 1080 / 30 fps

10 Mbps

MPEG-4 Advanced Simple / L4 1920 x 1080 / 30 fps

10 Mbps

H.264 Baseline (BP) / L4 1920 x 1080 / 30 fps

10 Mbps

H.264 Main (MP) / L3.1 1280 x 720 / 30 fps

4 Mbps CAVLC

H.264 Main (MP) / L3.1 1280 x 720 / 30 fps

4 Mbps CABAC, CAVLC

H.264 High (HiP) / L3.1 1280 x 720 / 30 fps

4 Mbps CAVLC

H.264 High (HiP) / L3.1 1280 x 720 / 30 fps

4 Mbps CABAC, CAVLC

Please note that the maximal throughput data are peak values not average values. You may need to re-

encode your videos with parameters above to get smooth video output.

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Kontron KTT20-pITX Manual de usuario Pagina 36