User`s manual

User’s Manual v.13 QVidium

H.264 HD Video Codecs™

Technologies, Inc. Page 19 of 67

To record a single contiguous file larger then 4 Gigabytes, you must use an NTFS, Ext3, or

networked file system. Please also note that recording to an MP4 file format limits the encoding to

Baseband H.264. Also, if you set a Maximum File Size under the Advanced Encoding tab to a

value other than Unlimited, then when a video clip exceeds this size, the encoder will automatically

close the current file and start a new file.

Figure 1a: Basic Encoder Configuration.

Video Input: The QVPRO has two video inputs: HDMI and SDI. The QVENC has three video

inputs: SDI, Composite (CVBS), and S-Video (Y/C). The SDI input detects and automatically

switches among SD-SDI, HD-SDI, and 3G-SDI signals on the same BNC input port. However,

please note that at present, the HDMI input only works for HD video (1080i or 720p). For SD

video (480i NTSC or 576i PAL) or 1080p (50 or 60 frames per second), you must use the SDI

input. On the QVENC, the Composite and S-Video inputs only accept SD video.

Stream Bit Rate: This sets the total output stream bit rate. The QVPRO/QVENC sets an internal

video bit rate by subtracting the audio bitrate from the Stream Bit Rate and setting an

additional margin for IP packetization. For all stream modes, the output bitrate should not