Moxa VPORT 254-M-SC-T Manual de usuario descargar pdf (Pagina 71)

VPort 254 User’s Manual System Configuration

4-27

Video Performance

The VPort 254 supports the MPEG4 and MJEPG compression standards. The administrator should

select the video compression standard first to identify the video stream format. But before setting

the video performance parameters, the administrator should decide which video performance mode

is required. There are 2 video performance modes:

y Frame rate mode:

In this mode, the video performance is focused on the frame rate. The frame can be set at up to

30 frames per second for each channel, but the resolution can only be selected in CIF (NTSC:

352x240; PAL:352x288) and QVGA(NTSC: 320x240; PAL:320x288)

y Resolution Mode:

In this mode, the video performance focuses on video resolution. There are 5 resolutions to

choose from

(1) Full D1(NTSC: 720x480; PAL:720x576)

(2) 4CIF (NTSC: 704x480; PAL:704x576)

(3) VGA (NTSC: 640x480; PAL:640x576)

(4) CIF (NTSC: 352x240; PAL:352x288)

(5) QVGA(NTSC: 320x240; PAL:320x288).

But the maximum frame rate for each resolution is only 7 frames per second.

For MJPEG, users can set up the Resolution, Max. Frame Rate, Video Quality in Fixed Quality,

and Enable Snapshot.

For MPEG4, users can set Resolution, Max. Frame Rate, Video Quality in Fixed Bit Rate or

Fixed Quality, Key Frame Interval, and Enable Snapshot.

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 97 98

Sin comentarios

Moxa VPORT 254-M-SC-T Manual de usuario Pagina 71