AMX NXD/NXT-1500VG, NXD/NXT-1700VG, NXD/NXT-1200VG manual Video, Short for enCOder

Firmware Pages and Descriptions

Streaming Video Adjustment Page Elements (Cont.)

Video:

Codec

(Short for enCOder/

DECoder or COmpressor/ DECompressor)

Resolution

Scaling

This read-only field displays the video stream information (Video Streaming format and resolution).

•The properties of this incoming (detected) stream is given as: Video Codec and Resolution.

•An example would be: MPEG2 720x480. This means that the incoming video is an MPEG2 video stream with resolution 720x480.

•Supported MPEG codecs: MPEG-2or MPEG-4

•MPEG-2 is typically used to encode audio and video for broadcast quality signals. The MPEG-2 is enhanced by using MPEG-1's audio (MP2) component to allow the coding of audio programs with more than two channels. Video quality is noticeably higher with MPEG-2 vs MPEG-4.

•MPEG-4 is currently used as a standard for the web (streaming media) and CD distribution, conversational (videophone), and broadcast television. The biggest difference between these two encoding types is that MPEG-4 uses about 1/3 to 1/2 less bandwidth for the same quality of video.

This relates to the display size/resolution used by the incoming video stream.

•Available resolutions: D1 (default) or SIF:

•D1 is a resolution standard. In the NTSC system, "Full D1" means 720x480 pixels @ 30 fps, and in PAL systems, full D1 is 720x576 @ 24 fps.

•SIF (Source Interchange Format) is a resolution standard defined as 352x240

@30fps for NTSC and 352x288 @ 24 fps for PAL.

This is the ability of the Modero panel to scale the incoming NTSC or PAL video stream into the following pixel resolutions:

•NTSC format:

-12" VG Modero panel: 360x240 (SIF),720x480 (D1), and 800x600

-15" VG Modero panel: 1024x768

-17" VG Modero panel: 1280x768

•PAL format:

-12" VG Modero panel: 360x288 (SIF),720x576 (D1), and 800x600

-15" VG Modero panel: 1024x768

-17" VG Modero panel: 1280x768

VG-Series Modero Touch Panels 149