Texas Instruments TMS320DM6437, Руководство по началу работы, Страница: 22 / 64

Overview of the Demo Software
3-2
3.1 Overview of the Demo Software
The demo software provided with the DVDP allows you to run examples
that encode and/or decode a signal. The examples can be run either
entirely on the target (standalone) or via a PC host application. Four
example modes are provided:
† Preview mode. (Also called Capture / Display mode.)
† Encode mode.
† Decode mode.
† Encode / Decode mode. (Also called Loopback mode.)
The algorithms used are H.264 or MPEG4 for video and G.711 for audio.
3.2 Running the Demos in Standalone Mode
When you power up the board, the pre-loaded demo application runs
automatically from Flash memory. You should see the following actions:
†
The EVM board boots up and starts executing the demo application
in standalone mode (from flash).
† Live video from the input video device (for example, a camera)
displays on the video output device.
By default, the standalone demo runs in Preview (Capture/Display)
mode. In this mode, audio and video are captured by the input devices
and sent directly to the output devices. No encoding and decoding is
performed.
If the demo is running standalone, you can switch the demo mode using
the Video Mode Switch (SW7). The Encode/Decode Loopback mode
also captures audio and video from the input devices and send it to the
output devices. However, the signals are encoded and decoded using
are H.264 or MPEG4 for video and G.711 for audio.
Capture/Preview Mode Encode/Decode Mode
SW7