Datavideo DVS-200 Configuration Manual

Text of Datavideo DVS-200 User Guide:

• Datavideo DVS-200, Please Note: Active directory users and groups are cached local and updated periodically, changes to AD user or Groups may take 15 minutes to take effect. RTMP Settings RTMP Port The default port of 1935 should generally not be changed, for advanced users only. Always start on key frame When enabled clients that connect to the RTMP stream will always start playback on a key frame, this may increase delay. Disable audio until first video frame is sent When enabled no audio will be sent until after the first video frame (RTMP clients only). AV Sync Interval If the RTMP client’s bandwidth is not enough to receive data at the publisher’s (encoders) rate, some frames a

• Datavideo DVS-200, Append to recorded file This option should only be used when ‘Give each recording a unique time stamp’ is not checked. When checked subsequent recording will be joined to the previous file creating one long recording. Max. Recorded file size Here we can limit the recorded file length by size, when this limit is reached a new file will be created. No limit is set by default. Max. Recorded file interval Here we can limit the recorded file length by time, when this limit is reached a new file will be created. No limit is set by default. Auto publish recorded file when done When enabled a recording will be published as soon as recording is stopped. Include in group record A

• Datavideo DVS-200, DVS-200 Configuration Guide Contents Web UI Overview .............................................................................................................................. 2 Creating a live channel ...................................................................................................................... 2 Inputs ............................................................................................................................................ 3 Outputs ........................

• Managing recordings Recordings are listed at the top of the channel settings page, a maximum of 10 files are listed per page. You have the following options: Publish Will publish the selected files, this makes them available to playback and embed (Converts the original file to HLS). Delete Will delete the selected files but won’t delete the published (HLS) files.

• General Visibility level By default, channels are visible to all users. To change this behaviour, you should remove the ‘All Users’ marker and then select only the user accounts you wish to be able to see this channel. Please Note: Administrators and Power Users can always view all channels; this option only affects viewer and contributor accounts. Authentication required (P

• Datavideo DVS-200, Outputs Push URL`s Push URL`s are optional. Here you can push the incoming stream on to one or more destinations simultaneously. We can push to destinations using RTMP or MPEG-TS protocols. RTMP Using RTMP you can push a single stream out to various streaming platforms such as YouTube, Facebook, Wowza etc. Simply enter the RTMP URLs you would like the stream to be pushed to. By default, the audio and video will be set to ‘passthrough’ in this mode no transcoding is performed, alternatively you can choose to transcode the source audio

• Datavideo DVS-200, Channel Description Here you can add a brief description of the channels content, this is used by the NVD-30/35 set top boxes. Player Page title Here you can change the text that is displayed at the top of the web player’s page for this channel only. HLS streaming Here you can enable or disable HLS streaming, if HLS is disabled the inbuilt web player is also disabled. HLS streaming Here you can select Live or Event, Live mode should be used in most cases. In Live mode the player will play from the end of the HLS play

• Datavideo DVS-200, Decklink Source Here you can use an input card from Blackmagic Design to feed the channel directly from HDMI or SDI sources. We currently support all Blackmagic Decklink, mini monitor and mini recorder cards using the Desktop video 10.8.4 driver version. As Blackmagic cards feed the system with uncompressed video you must set the H264 video and AAC audio encoding options as required. You can setup multiple sources if your card has more than one input or you are using multiple cards. Select the source you want to use using the enable/disable buttons on the far right. To sto

• Datavideo DVS-200, Please Note: If you are going to use a folder on a separate auto mounted disk (Ubuntu 14.04 Desktop) you must first run the command below from the terminal. echo 'ENV{ID_FS_USAGE}=="filesystem", ENV{UDISKS_FILESYSTEM_SHARED}="1"' | \ sudo tee -a /etc/udev/rules.d/99-udisks2.rules HLS Access Here you can restrict what IP addresses can playback using HLS (The web player). In whitelist mode, only the listed IPs can playback, in blacklist mode all but the listed IPs can playback. You must enter the IP address followed by its abbreviated subnet mask, for example 255.255.255.0 is a 24-bit mask so is represented as /24. Please consult your IT department if u

• Datavideo DVS-200, HLS Playlist Length This setting defines how many .TS chunks are stored on the server, longer playlists lengths means live streams can be paused for longer. HLS AV Sync Interval Sets the HLS timestamp synchronization threshold. This feature prevents crackling noises after conversion from low-resolution RTMP (1KHz) to high-resolution MPEG-TS (90KHz). Default is 2ms. Global Player Settings HTML5 Support By default, the web player will use HTML5 extensions if the browser supports them, if not it will use FLASH extensions. This setting allows HTML5 extensions to be disabled for all or desk

• By default, the audio and video will be set to ‘passthrough’ in this mode no transcoding is performed, alternatively you can choose to transcode the source audio and or video. Please note that if the source is MPEG2 you must transcode the video and audio. For details of transcoding options please see the transcoding and encoding options section of this guide.

• Datavideo DVS-200, Settings UI Settings Custom UI Title Here you can change the title of the DVS-200 web page, the default is ‘dv Stream Server’. Upload Custom UI logo Upload a custom logo to replace the default Datavideo logo Server Settings Max VOD file upload size Set the maximum allowed file size for uploads Media storage directory (HLS & recordings) Change the directory used to store recordings, VOD content, HLS fragments and recording schedules.

• Datavideo DVS-200, Creating and managing user accounts To create a new user account click ‘Create New User’, you will see the screen below. User Here you must choose a logon name for the user. The name can contain uppercase and lowercase characters but no white space. Login Role • Viewer – This role only allows the user to view streams and change their own password. Viewer accounts cannot view stream URLs, create or modify channels or change settings. • Viewer Plus – This role has all viewer rights but can also download recordings and VOD content • Admin - This role gives the user full control, users with admin rights cab view all channels even if t

• Datavideo DVS-200, Web UI Overview Once you login (Defaults User: admin Password: 000000) you will be presented with the screen shown below. There are five options available: • Live – Create and manage live streaming channels • VOD – Create and manage on demand channels • Stats – View live server statistics • Users – Create and manage user accounts • Groups – Create and manage user groups and channel tags • Settings – Manage global server settings Creating a live channel When creating a new live channel you will be presented with the screen shown below. You have the following options: Channel Name Her

• Datavideo DVS-200, Stats The stats tabs provides real time statistics relating to the server and streaming channels. Server Statistics Shows global statistics. • Incoming Bytes – Shows the amount of data that has been sent into the server • Outgoing Bytes – Shows the amount of data the has been pulled out of the server • In Bandwidth – Shows the incoming bandwidth usage for the entire server • Out Bandwidth - Shows the outgoing bandwidth usage for the entire server • Server Uptime – Shows the amount of time the server has been powered up • CPU Usa

• Datavideo DVS-200, H264 Key Interval – Set the frequency of a key frame (I frame) H264 GOP Type – Select Open or Closed, if all b-frames from one GOP references only to I- and P- frames of the same GOP then it is commonly called a closed GOP (all frames can be decoded without the need of another GOP). Applying changes After you save channel settings you will be redirected back to the main web interface. Whenever you see this message across the top of the page you know that the service must be restarted to apply s

• Datavideo DVS-200, The RTMP URL is used to configure your encoder, for most encoders the part after the last / should be used as the stream key. This URL can be decoded by Datavideo NVD decoders with low latency. The HLS URL can also be decoded by Datavideo NVD decoders, HLS will perform better over poor internet connections but latency will be considerably higher. Open a new tab with the web video player. Generate the code required to embed the web video player in another website. Creating a VOD channel A VOD channel is automatically created for each live channel, this

• Datavideo DVS-200, Channel Statistics Shows channel specific statistics. • Stream – Displays the stream name • Video codec – Displays the video codec used, usually H264 • Width – Displays the video width (if supported by the encoder) • Height - Displays the video height (if supported by the encoder) • Audio Codec - Displays the audio codec used, usually AAC or MP3 • Channels – Displayed the number of audio channels, usually 2

• Datavideo DVS-200, Concurrent IP`s Limit the number of IP addresses than can use play content using the web player (HLS) simultaneously, default is no limit. Concurrent Connex per IP Limit the number of connections that can play content using the web player (HLS) from the same IP address. For example, you may have set concurrent IP`s to a value of 1, this would still allow multiple connections from the same public IP address. Active Upto Allows you to set an expiry date for the account, if left blank the account will never expire. Group Membership Make the user a member of a user group, groups can be manged using the ‘Groups’ tab. Password Here you must choose a password for the user. Confi

• Datavideo DVS-200, Socket commands / API Using third party applications, users can easily connect to the DVS-200 using Telnet. To establish a connection with the DVS-200 simply open a Telnet connection to the units IP address on port 23. Please Note: Socket commands are disabled by default, to enable socket commands first ensure you have purchased the optional remote control license and then check the appropriate option in the ‘Settings Tab’. The DVS-200 has three responses to commands: FAILED: shows that the command could not be executed successfully. O

• Datavideo DVS-200, Unpublish (Delete) Will delete the published (HLS) files but not the original uploaded files. To publish a file, select its check box, ensure the option to ‘Publish’ is selected and save the channel. You will be redirected back to the main web interface and see the file is now available to play and embed. General Visibility level By default channels are visible to all users. To change this behaviour you should remove the ‘All Users’ marker and then select only the user accounts you wish to be able to see this channel. Please Note: Administrators and Power Users can always view all channels; this option only affects viewer and contributor accounts.

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