User`s manual

User’s Manual v.13 QVidium

H.264 HD Video Codecs™

Technologies, Inc. Page 17 of 67

Complete Encoder Configuration

(QVENC and QVPRO Only)

The encoder is configured and operated from a web browser. These settings are stored in non-

volatile flash memory, allowing the encoder to recover after a power failure. This section explains

how to configure the Codec’s encoding parameters with full access to the capabilities of the

encoder.

3.1 Configuring the Encoder - Overview

1. Enter http://<IPAddress> where <IPAddress> is the IP address of the QVidium

QVPRO H.264 HD Video Codec™ that you want to configure. (The default address is

http://192.168.1.23.)

2. Click on “Profile” under “Encoder” from the menu on the left. Then, either double-click on

an existing encoder profile you wish to edit, or click on New to create a new encoder profile.

The “Encoder Profile” interface should then display in the main area to the right of the

menu system, as shown in Figure 1a.

3. Enter the Destination IP address and UDP port number for the decoder, media server, or

network equipment that will be receiving the stream. Enter the desired Video Bit Rate (in bps),

and modify the other audio and video parameters, such as Video Input, and Audio Bitrate (in

bps), to suit your needs, as shown in Figure 1a, and explained below. To enable error

correction, set the IP Transport to ARQ.

Note: For ARQ and RTP IP Transport, you may enter up to 3 different destination IP

addresses, separated by commas (‘,’). The QVPRO will then send an individual copy

of the video stream to each of the IP addresses that you list.

Press the “Save” button to save your changes. None of your changes will be saved nor have

any effect unless you first save them. If you have any doubt about the parameters selected

when running the encoder, you should click on Profile after saving the parameters or starting

the coder to see the current operational encoder settings. These changes are stored in

permanent memory and will persist even after a power failure.

3.2 Encoder Configuration

As shown in Figure 1a, you can select the video input source, and set the video and audio

encoding format and bitrates. For the QVPRO codec, the Video Input can be either SDI or HDMI.

However, The HDMI input only works for unencrypted HD video. For the QVENC, the Video Input

can be one of SDI, Composite (CVBS), or S-Video (Y/C). An HD video input will automatically be

scale to SD if you do not have a license installed for the HD encoding option. The QVPRO/QVENC

codec will automatically detect and adjust for the input video resolution and format (PAL vs. NTSC,

and HD vs. SD). You can also use the advanced encoding parameters (Section 3.6) to scale the

video resolution and frame-rate.

The QVPRO/QVENC can output the encoded video stream either as a Constant Bit Rate (CBR)

IP stream, a Capped Variable Bit Rate (Capped VBR) IP stream, or a Low-Delay Variable Bit

Rate (Low Delay VBR) IP stream. The default is to output a CBR stream to maintain the highest