Datavideo NVS-25 Instruction Manual
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Datavideo NVS-25 Instruction Manual

Network streaming server
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Summary of Contents for Datavideo NVS-25

  • Page 2: Table Of Contents

    Connect power to NVS-25 __________________________ 11 Select the input connection to be streamed ____________ 11 How to find the NVS-25 on an IP network __________ 12 How to use the NVS25 IP Finder utility software ________ 12 Use the NVS25 IP Finder utility software to search a...
  • Page 3 H.264 Network Video Streaming Server NVS-25 Status Option ____________________________________ 16 Settings Option __________________________________ 16 Setting > Live Stream Setup - Protocols ____________ 17 HLS Protocol _____________________________________ 17 RTSP Protocol ____________________________________ 17 RTMP Protocol ___________________________________ 17 Stream Server Selection____________________________ 17 RTMP Publish URL ________________________________ 19 Setting >...
  • Page 4 Further advice on the content of this manual or on the product can be obtained by contacting your local Datavideo Office dealer.

  • Page 5: Warnings And Precautions

    AC adapter. If you are not sure of the type of power available, consult your Datavideo dealer or your local power company. 8. Do not allow anything to rest on the power cord. Do not locate this unit where the power cord will be walked on, rolled over, or otherwise stressed.

  • Page 6: Warranty

    Hard Drives are only covered for the first 10,000 hours, or 1 year (whichever comes first). Any second year warranty claims must be made to your local Datavideo office or one of its authorized Distributors before the extended warranty expires.

  • Page 7: Product Overview

    • RTMP [Local/Publish] NVS-25 can be set up and controlled using almost any devices with a web browser. Users are allowed to configure real time audio and video streaming on the web-based graphical user interface. The encoded video stream can be delivered to a single browser, a group of clients on a Local Area Network (LAN) or even a Content Delivery Network (CDN).

  • Page 8: Front Panel

    Restore factory defaults from the front panel. From power off. Press and hold the STM button and turn on the NVS-25 power; keep holding the STM button for 40 seconds. When released, the NVS-25 will take a further 30 seconds to finish the boot-up process. Remember to login...

  • Page 9: Rear Panel

    H.264 Network Video Streaming Server NVS-25 Rear Panel AUDIO IN (XLR) Supports two channels XLR Balanced Audio Input. AUDIO IN (RCA) RCA stereo for a line level auxiliary analogue audio source, such as a CD player or tape deck. If you are using more than two sources via an external audio mixer, connect the audio mixer’s line level output to this unbalanced audio input.

  • Page 10: System Diagram

    H.264 Network Video Streaming Server NVS-25 System Diagram...

  • Page 11: Nvs-25 Network Video Streaming Server Setup

    Select the input connection to be streamed The MODE button on the front panel of the NVS-25 is used to select the live video input connected to the rear of the unit. Press this button to cycle through HDMI, SDI and Composite [CVBS].

  • Page 12: How To Find The Nvs-25 On An Ip Network

    When the utility scans the LAN that the computer is connected to, it will display the IP and MAC addresses of all the NVS-25 units found on this local area network. Make a note of the NVS-25 IP Address. In this case, the IP address of the NVS-25 is 192.168.1.100.
  • Page 13 H.264 Network Video Streaming Server NVS-25 If your computer has two Ethernet cards which are respectively connected to two different network domains, by clicking the “Local IP Address” pull-down menu, you will then be able to select the network that you would like to scan. In the example below, we...

  • Page 14: Use The Nvs25 Ip Finder Utility Software To Search A Different Network

    To use the NVS-25 IP finder to search a different network, simply enter the IP of the NVS-25 installed on another network into the “Local IP Address” pull-down menu as shown in the diagram below.

  • Page 15: Nvs-25 Login Using A Web Browser

    NVS-25 NVS-25 login using a web browser By now, we have obtained the IP addresses of the computer and the NVS-25. If both devices are assigned the IP addresses with the same network prefix, we should be able to use any web browser to login and configure the NVS-25.

  • Page 16: Live Option

    Record Option On the Record option page, the NVS-25 can be configured to connect to an external USB 2.0 hard drive or pen drive. When the USB storage device is connected, NVS-25 can then record video to the device. The recording time is dependent on the recording bit rate and the free space available on the USB device.

  • Page 17: Setting > Live Stream Setup - Protocols

    HLS latency may be up to 10 seconds in case of live events. RTSP Protocol Use the NVS-25 to feed IP video stream [TCP , HTTP] to a small group of clients on a Local Area Network (LAN) or Wide Area Network (WAN). The user can then view the video via free client software such as VLC Player.
  • Page 18 H.264 Network Video Streaming Server NVS-25 After the preferable stream server is selected, the user can also enable the Stream Schedule function by checking the “Enable Schedule Stream” box and then select the time to the first stream time as well as its cycle.

  • Page 19: Rtmp Publish Url

    NOTE: All settings applied will not be in effect unless the Apply button has been clicked and the NVS-25 configuration progress bar indicates 100% completion. The user can also enable “Auto stream at startup” so that the original settings persist through the power cycle process.
  • Page 20 • RTMP Username: Username of CDN account • RTMP Password: Password of CDN account If you wish to view the RTMP stream directly from the NVS-25 on the local area network (LAN) using the Live option, select RTMP Local option.

  • Page 21: Setting > Encoder Setup

    Setting > Encoder Setup On any video streaming device, the encoder plays a crucial role in the entire system. The NVS-25 provides the user with several configurable parameters as listed in the table below. The following sub-sections will provide details of each parameter.

  • Page 22: Input Source Selection

    This pull-down menu allows you to switch between physical video inputs, HDMI, CVBS and SDI, located on the rear panel of NVS-25. The default is HDMI. Please note that you will not be able to use Video Tuning if SDI is selected.

  • Page 23: Image Size

    NVS-25 Image Size The first step of encoder setup is to adjust the image size. The NVS-25 allows you to downscale the output image and set the SD aspect ratio at the input. The Scale Down function, as the name suggests, allows the user to shrink the image size. The table below shows all possible downscaled resolutions on NVS-25.

  • Page 24: Group Of Pictures

    H.264 Network Video Streaming Server NVS-25 Main Profile The ‘Main’ or Mainline Profile includes support for interlaced video, inter-coding using B- slices, inter coding using weighted prediction and entropy encoding using context-based adaptive binary arithmetic coding (CABAC). Ideal application of the Main Profile includes long term video archival storage and standard-definition digital TV broadcasts that use the MPEG-4 format as defined in the DVB standard.
  • Page 25 GOP pattern with longer GOP length encodes video very efficiently. Shorter GOP lengths usually work better with video that has quick movements, but they do not compress the data rate as much. On the NVS-25, there are 57 GOP sizes available for the user, ranging from 6 to 62.

  • Page 26: Video Bitrate/Mode

    For example, SD video may appear acceptable at 1000 Kbps but HD video is unacceptable at 1000 Kbps. The NVS-25 converts video into data, which are sent across an IP network. High bitrates consume more bandwidth across the IP network.
  • Page 27 The NVS-25 also offers two bitrate modes, Variable Bitrate (VBR) and Constant Bitrate (CBR). Set the NVS-25 to VBR to efficiently send video data across an IP network but there is also a trade-off against video quality. CBR provides better video quality but is...

  • Page 28: Audio Setup

    NVS-25 Audio Setup Audio Source can be fed into the NVS-25 in two ways. One way is to embed audio into digital video stream such as HDMI and SDI [DIGITAL] and another way is to feed audio into a separate analog XLR/RCA phono inputs [Analog]. Select your audio source first as shown in the diagram below.

  • Page 29: Setting > Network Setup

    NVS-25 on a DHCP network. 10.2 DHCP Disable If DHCP mode is disabled, NVS-25 will be set to True Static mode. A true static IP address does not change even after the unit is power cycled. This allows NVS-25 to be easily located on the network.

  • Page 30: Setting > Firmware Update

    Setting > Firmware Update Datavideo usually releases new firmware containing new features or reported bug fixes from time to time. Customers can either download the NVS-25 firmware as they wish or contact their local dealer or reseller for assistance. This section outlines the firmware upgrade process which should take approximately 10 minutes to complete.

  • Page 31: Setting > Account Setup

    H.264 Network Video Streaming Server NVS-25 Setting > Account Setup The NVS-25 has a default admin account and password. This account has access to the NVS-25 login credential and stream settings. Default username = admin Default password = 000000 [Six Zeros] This section outlines steps to changing the above default username and password to a more secured login credential.

  • Page 32: Setting > Restore Default

    NVS-25 Setting > Restore Default Settings on the NVS-25 are usually changed many times, and this function is used when you wish to restore your factory default settings. NOTE: This feature will also reset the NVS-25 login credential to the default username and password (admin/000000).
  • Page 33 H.264 Network Video Streaming Server NVS-25 The factory default stream settings are listed as follows: Stream Server Input Source HDMI Resolution No Source Input Brightness Contrast Saturation Sharpness Scale Down SD Aspect Ratio H.264 Level H.264 Profile Main GOP Structure...

  • Page 34: Restore Factory Default Via Stm Button

    If the video being streamed into NVS-25 is of a High Definition 1080i video format then the recorded file will use this resolution. If the video being streamed into NVS-25 is of a Standard Definition NTSC format then the recorded file will adopt this resolution instead.

  • Page 35: Stream Information

    H.264 Network Video Streaming Server NVS-25 15.2 Stream Information Stream information displays the current encoder settings. A sample stream information display is shown below.

  • Page 36: Streaming Examples

    HLS latency may be up to 10 seconds in case of live events. In order to configure HLS protocol, the user should first find the NVS-25 IP address on the network using the IP finder that Datavideo provides. Once the NVS-25 IP address is known, enter the IP address into the Safari web browser address bar on iPad or other iOS devices.

  • Page 37: Real Time Streaming Protocol (Rtsp)

    16.2 Real Time Streaming Protocol (RTSP) Use NVS-25 to feed IP video stream [TCP , HTTP] to a small group of clients on a Local Area Network (LAN) or Wide Area Network (WAN). The user can then view the video via free client software such as VLC Player.

  • Page 38: Real Time Messaging Protocol (Rtmp)

    The user just need to deliver one video stream to the CDN and that IP video feed will be shared among multiple viewers. This means less work for you and the NVS-25 as well. CDNs differ in tariffs and the way they operate so it is best to do your homework beforehand.
  • Page 39 NVS-25 on the Content Delivery Network (CDN). If you are using NVS-25 as the local RTMP server then a video stream player window will be available under the Live Tab. Click on the Play button at the lower left corner of the payer window to start playback of the RTMP stream.

  • Page 40: Nvs25-Ustream Connection Configuration

    RTMP stream credentials, please enter in the “RTMP Username” and “RTMP Password” text bars. Step 4 allows the user to stream video from NVS-25 to USTREAM. Select the configured channel on USTREAM to view the video streamed from NVS-25.

  • Page 41: Nvs25-Wowza Server Connection Configuration

    Login NVS-25 and go to “Live Stream Setup.” Enter “rtmp://61.220.30.5/live/nvs-25” into the respective RTMP Publish text bars as depicted in the diagram below, where 61.220.30.5 is the WOWZA server computer IP (RTMP URL) and NVS-25 (RTMP Stream) is the custom streaming location on the WOWZA server.
  • Page 42 Enter the WOWZA server computer IP and the custom streaming location as illustrated in the diagram shown below. The server physical IP 1935 RTMP Port nvs-25 is the stream name NVS-25 Live Stream Setup (WOWZA Server) Live video streaming is displayed in the diagram below.

  • Page 43: Nvs25-Youtube Connection Configuration

    H.264 Network Video Streaming Server NVS-25 16.3.3 NVS25-Youtube Connection Configuration Login Youtube (https://www.youtube.com/) and click on “My Channel” to enter a page on which you will find a Video Manager tab.
  • Page 44 H.264 Network Video Streaming Server NVS-25 For first-time user, the Youtube account must be verified before creating a live event. Click on “Enable live streaming” button and the subsequent wizard will take you through the account verification process. Once your youtube account is verified, you are then ready to start creating a live stream.
  • Page 45 H.264 Network Video Streaming Server NVS-25 There are two tabs on the event settings page, basic info and advanced settings, as shown in the diagram below. To best promote your video, enter the event’s title and description and make sure they are clear, specific and relevant to the live event.
  • Page 46 H.264 Network Video Streaming Server NVS-25 On the Ingestion setting page, the encoder setting will appear after a bitrate is selected. “Primary Server URL” and “Stream Name” are two important parameters to be entered into Live Stream Setup on NVS-25.
  • Page 47 NVS-25 Copy and paste “Primary Server URL” and “Stream Name” into RTMP URL and RTMP Stream text bars on the Live Stream Setup page of NVS-25 respectively. If your CDN service provider requires you to enter the RTMP stream credentials, please enter in the “RTMP Username” and “RTMP...
  • Page 48 H.264 Network Video Streaming Server NVS-25 After completing Step 6, click on the Live Control Room to enter the page shown below. Once the stream is loaded, the “Preview” button will turn to “Start Streaming”. Click on “Start Streaming” button to start streaming video to...

  • Page 49: Port Forwarding On Your Firewall / Router

    NVS-25 Port Forwarding on your Firewall / Router In order to view the NVS-25 video stream on remote computers (hosts on the Internet), port forwarding function must be enabled, i.e. set aside one port number on the gateway for the exclusive use of communicating with a service in the private network. Contact your local network administrator or IT support for port forwarding configuration.

  • Page 50: Button Behaviour

    Record LED ON/OFF Frequently-Asked Questions This section describes problems that you may encounter while using NVS-25. If you have questions, please refer to related sections and follow all the suggested solutions. If problem still exists, please contact your distributor or the service center.

  • Page 51: Specifications

    H.264 Network Video Streaming Server NVS-25 Specifications 1 x BNC for HD/SD-SDI (75 ohm) Video Input 1 x BNC for CVBS (75 ohm) 1 x HDMI (Ver 1.3) SDI embedded audio (2 channels) Audio Input 2 x XLR/RCA for Analog audio (2 channels)

  • Page 52: Service & Support

    H.264 Network Video Streaming Server NVS-25 Service & Support...

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