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DOC-USR-0061-03

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Z3 Technology, LLC

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100 N 8

th

ST, STE 250

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Lincoln, NE 68508-1369 USA

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+1.402.323.0702

31

6.12

Encoding Closed Caption Data

The Z3-DME-03 supports extraction of closed caption data from composite or SDI input. This
automatically occurs any time composite or SDI input with closed caption data included is used.
Encoding and subsequently extracting closed caption data from composite is shown below:

Connect a composite input with closed caption data to the composite connector. Also connect the

audio if available:

Configure the Encoder to use composite input:

Connect composite with CC data

Figure 37 Connections for Closed Caption Extraction

Figure 38 Sample Encoder Settings for Composite Closed Caption Extraction

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Summary of Contents for Z3-DME-03

Page 1: ...ht Z3 Technology LLC All rights reserved This document contains proprietary and confidential information of Z3 Technology LLC Z3 This document may not be used reproduced disclosed or disseminated to anyone without the prior written approval of an authorized representative of Z3 Z3 Technology LLC incorporates HDMI technology The terms of HDMI and HDMI High Definition Multimedia Interface and the HD...

Page 2: ...divider Minor updates in Section 2 0 4 0 6 0 6 3 6 4 6 6 9 5 Updated screenshots and filenames RC 2 16 06 10 15 Modified description of RTSP URL in Section 6 6 Took out RTP only restriction for dynamic changes in Section 6 7 Changed value to disable B frames from 1 to 0 in Section 6 9 Simplified configuration procedure in Sections 6 11 7 4 and 7 5 Added AAC HE and audio bitrate information in Sect...

Page 3: ... using ZFinder 12 6 4 Configure CH1 and Encode 13 6 5 Run VLC to View Stream 16 6 6 Streaming RTP 17 6 7 Changing the Bitrate Dynamically 19 6 8 Adjusting the UDP TS Rate 21 6 9 Tuning for Latency 23 6 10 Running DHCP 24 6 11 Encoding from HDMI or Composite In 28 6 12 Encoding Closed Caption Data 31 7 0 STREAMING RTMP IN THREE DIFFERENT RESOLUTIONS 33 7 1 Connect the Encoder 33 7 2 Configure the E...

Page 4: ...and Power on the Z3 DME 03 11 Figure 7 ZFinder with Z3 DME 03 Listed 12 Figure 8 ZFinder with Z3 DME 03 Selected 12 Figure 9 Z3 DME 03 Web GUI System Setup Page 13 Figure 10 Channel 1 Configuration Screen UDP 14 Figure 11 Starting Encode 15 Figure 12 VLC Open Network Screen for UDP 16 Figure 13 Example of Z3 Video Streaming to VLC UDP 16 Figure 14 Channel 1 Configuration Screen RTP 17 Figure 15 VL...

Page 5: ...tream 30 Figure 36 Composite Cable 30 Figure 37 Connections for Closed Caption Extraction 31 Figure 38 Sample Encoder Settings for Composite Closed Caption Extraction 31 Figure 39 Setting VLC to use the Extracted Closed Caption Data 32 Figure 40 Changing to Encode 1 to 3 Ch Mode 33 Figure 41 Creating CH3 33 Figure 42 3 Channel RTMP Encode Channel 1 Settings 34 Figure 43 3 Channel RTMP Encode Chann...

Page 6: ...ke video from any of those three sources and stream them to the web or internal clients PCs via UDP RTP or RTMP This solution is ideal for applications such as low cost broadcast encoders low bandwidth video security satellite uplink remote monitoring and industrial applications The Z3 DME 03 provides immediate access to multi format HD video integrated system peripherals and production qualified ...

Page 7: ... is described For encoding from HDMI or composite a special step of creating a CH2 to encode from is needed This is described in detail on page 28 Details on streaming RTMP and also on using the Encode 1 to 3 Ch mode which allows one source to be encoded 3 different ways as long as the total processing involved fits within the constraints of Z3 DME 03 performance can be found in Section 7 0 STREAM...

Page 8: ... ST STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 8 3 0 INCLUDED PARTS LIST Z3 DME 03 5V Power Supply BNC to BNC Cable DB 9 Serial Cable 1 x Composite Adapter Cable Note The serial cable and gender changer are included for debugging purposes and are not needed by the typical Z3 DME 03 user Figure 2 Parts Included with the Z3 DME 03 ...

Page 9: ...rts fractional resolutions and frame rates 1x USB 2 0 Interface for local storage Web based configuration software for user friendly configuration and control RS 232 serial port for technical configuration and control Operating Temp 0 to 40 degrees C at 20 80 relative humidity non condensing Storage Temp 40 to 70 degrees C at 20 80 relative humidity non condensing Measurements 118 x 121 x 34 mm 4 ...

Page 10: ...__________________________________ Z3 Technology LLC 100 N 8th ST STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 10 5 0 OPERATING CONTROLS Figure 4 Z3 DME 03 Rear View Power Switch HDMI In Composite In SDI In Figure 3 Z3 DME 03 Front View Ethernet Serial Port USB 5V Power ...

Page 11: ... the HD Source Select an HD source with SDI output Power on the HD Source Connect SDI to a monitor Set the HD Source to 1080i output Select content you would like to stream If you see playback on the monitor you ve confirmed the source works 6 2 Connect and Power Up the Z3 DME 03 Connect the SDI source to SDI In on the front of the Z3 DME 03 Connect an Ethernet cable connected through a hub or rou...

Page 12: ...onnected Run the ZFinder PC Utility on your Windows PC The ZFinder window appears ZFinder does a scan of the network and lists the location of all Z3 systems connected to the network In this case the Z3 DME 03 appears Figure 7 ZFinder with Z3 DME 03 Listed Click on the Z3 DME 03 entry in the window to select it This will cause the Edit Device Open Device and Flash LEDs boxes to activate Figure 8 Z...

Page 13: ...net browser window is opened default browser used is Firefox and the Web GUI appears at the System Setup tab Click on the CH1 tab 6 4 Configure CH1 and Encode At the CH1 tab change Video Resolution to 1920x1080 set Output Format to UDP and Dest Address to the IP address of your PC in this example 192 168 0 6 Also make note of the value of Dest Port should be 5004 by default Figure 9 Z3 DME 03 Web ...

Page 14: ...0702 14 Note If you want to encode 1080p60 you must first change Operating Mode at the bottom right from Encode Interlaced Progressive to Encode Single CH No Scale Note that in Encode Single CH No Scale mode only CH1 can be used Figure 10 Channel 1 Configuration Screen UDP 2 Change to UDP 3 Change to IP Address of your PC 4 Note Dest Port value 1 Change to 1920x1080 or Follow input ...

Page 15: ...started after 20 seconds the encoder will automatically try to start If it has click on stop near the bottom of the screen The status should then change to STOPPED Then click on start Once you do this the status will change to RUNNING If the encoder hadn t started already simply click on start and observe the status change 2 Status will change to STOPPED 3 Click start 1 If necessary click stop Fig...

Page 16: ...5 Run VLC to View Stream Run VLC on your PC version used in testing at Z3 2 1 5 Select Media Open Network Stream In the box type udp 192 168 0 6 5004 where 192 168 0 6 is the IP address of your PC and 5004 is the value of Dest Port noted in step 11 Press Enter You should now see video streaming to VLC Figure 13 Example of Z3 Video Streaming to VLC UDP Figure 12 VLC Open Network Screen for UDP ...

Page 17: ...ng it is relatively simple to change to RTP streaming A few parameter changes are all that is needed To stream using RTP complete the following steps In the CH1 configuration tab click on stop to stop the current encoding session Change Output Format from UDP to RTP Click on start to start the RTP encoding session At this point your settings should look like the following 1 Change to RTP Figure 14...

Page 18: ...ss of the Z3 DME 03 ch is 1 for CH1 2 for CH2 and 3 for CH3 and m is added if a multicast address is being streamed For example if the IP address of the Z3 DME 03 is the default value of 192 168 81 7 encode is being done from CH1 and unicast streaming is being done the user would type in rtsp 192 168 81 7 z3 1 mp4 Note VLC version 2 1 5 or later is needed for RTSP support You should then see RTP v...

Page 19: ...nge the bitrate without stopping and restarting the encoder To use this feature complete the following steps In VLC click on Tools and select Codec Information This brings up a window with four tabs Select the Statistics tab In this tab you can see the current video audio bitrate In the CH1 screen change the bit rate from 8000K to 2000K and click update 1 Change bitrate to 2000K Figure 18 Changing...

Page 20: ...in VLC change and the video bitrate drop If you click on the status page and click Refresh you will also see the updated bitrate reflected The parameter Frame Rate Divider can also be updated dynamically using the update button All other parameters require a stop and then start to change Figure 19 Drop in Bitrate after Dynamic Bitrate Change Lower video audio bitrate Figure 20 Status Page Output S...

Page 21: ... and audio bit rate For example the default value out of the factory is a value of 10Mbps corresponding to 8Mbps for the video There are times however when it is desirable to make this value higher For example if the encoder bitrate is very low below 1Mbps it is advisable to allow more leeway in the event there are some challenging scenes to encode An example follows Return to the CH1 tab In this ...

Page 22: ...o start encoding see step 6 above Open VLC to view your UDP stream Section 6 5 and view the Statistics tab Section 6 7 You will see a lower value for the overall input rate and for the content rate The value of TS Rate must be higher than video bitrate audio bitrate 1 25 If an attempt is made to input a value less than this the error message TS rate too small to carry elementary streams will appea...

Page 23: ...al streaming using RTP will result in lower latency than streaming using TS If low latency with TS is desired there is a special TS lowlat mode that can be activated Setting this causes the TS muxer to send packets out immediately rather than gathering data and sending packets once they reach maximum network size The tradeoff is less efficient use of the network and a TS stream that is no longer p...

Page 24: ...assigned can be seen through the ZFinder tool running on a PC To view how DHCP support works you can do the following steps The first thing you need to do is set up a custom configuration so that the DHCP setting is used the next time the system boots up To do this click on the User Presets tab and click on new This brings up a new text box to enter the preset name Type z3_config1 and click ok Fig...

Page 25: ... and select as the preset the z3_config1 configuration you just created As soon as you select z3_config1 the screen will reload Check the Use DHCP box Now that DHCP is set in z3_config1 save the configuration by clicking on the Save button 1 Click on System Setup Select z3_config1 configuration Figure 26 Selecting z3_config1 within the System Setup Tab Click Save Check Use DHCP again Figure 28 Sav...

Page 26: ...s is due to some flash initialization which occurs on the very first configuration save Now that you ve set DHCP saved it to the configuration z3_config1 and specified that z3_config1 will be used when the system restarts you can go ahead and reboot the Z3 DME 03 Run the ZFinder PC Utility on your Windows PC The ZFinder window appears ZFinder does a scan of the network and lists the location of al...

Page 27: ...323 0702 27 Select the Z3 DME 03 and then click Open Device A web browser will then open at the IP address of the Z3 DME 03 and you will see the Web GUI Figure 32 Web GUI Using DHCP Address You can go back to Static IP by unchecking Use DHCP and saving that to the preset New IP address 1 Select Z3 DME 03 2 Click Open Device Figure 31 Selecting Z3 DME 03 w DHCP Address in ZFinder ...

Page 28: ...ts encode via HDMI or Composite In The HDMI or Composite In can be used in parallel with the SDI In A special cable provided with the Z3 DME 03 is needed for the Composite In To encode with either HDMI or Composite In perform the following steps In the GUI menu click on the CH2 tab If it is not there click on to make it appear and then click on it Figure 33 Clicking on Creating the CH2 Tab If CH2 ...

Page 29: ...oding 720p through HDMI to a multicast address are shown in Figure 34 Note that it is not necessary to use a multicast address for HDMI Composite It is used here as an example value If SDI encode is also being done at the same time the IP address port set for HDMI Composite encode needs to be different from the IP address used for SDI encode Click on start Figure 34 Configuring HDMI Input on CH2 2...

Page 30: ...a different IP address is used a different value will be needed in the VLC Open network stream window If composite encode is desired the special composite cable shown below is needed The yellow connector connects to the composite output of the video source while the red and white connectors connect to the analog audio outputs Figure 35 VLC Settings for Viewing the Multicast Stream Figure 36 Compos...

Page 31: ...nput This automatically occurs any time composite or SDI input with closed caption data included is used Encoding and subsequently extracting closed caption data from composite is shown below Connect a composite input with closed caption data to the composite connector Also connect the audio if available Configure the Encoder to use composite input Connect composite with CC data Figure 37 Connecti...

Page 32: ...cted closed caption data that the encoder has extracted and encoded You should then see the subtitles on the screen Extraction of closed caption through SDI input is also possible In that case SDI In of the Z3 DME 03 is used The procedure for seeing the closed caption data through VLC is the same as shown above Note Full frame rate is needed for closed caption If frame rate divider is set to a val...

Page 33: ... RTP UDP or TSFILE instead of RTMP and ignore the sections referring to Wowza in this section Note that if multiple channels off the same input is done the total performance cannot exceed the capability of the Z3 DME 03 for example 3 1080p30 encodes at 30fps would not be allowed 7 1 Connect the Encoder Follow steps 1 to 11 in Section 6 0 to connect the Z3 DME 03 for encode and bring up the Encoder...

Page 34: ... Streaming Click on the CH1 tab Set encode to 720p 4Mbps input HD SDI Set Output Format to RTMP For Dest Address type 192 168 0 4 1935 live 720 where 192 168 0 4 is the IP address of the PC with the Wowza server If necessary set Authentication to Enable and enter the User name and Password After you re finished your settings should look something like the following Figure 42 3 Channel RTMP Encode ...

Page 35: ..._______________ Z3 Technology LLC 100 N 8th ST STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 35 7 4 Configure CH2 for RTMP Streaming Click on the CH2 tab Set encode to D1 2Mbps Use the same RTMP format and Dest Address replacing 720 with d1 Figure 43 3 Channel RTMP Encode Channel 2 Settings ...

Page 36: ...____________ Z3 Technology LLC 100 N 8th ST STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 36 7 5 Configure CH3 for RTMP Streaming Click on the CH3 tab Set encode to 352x240 1Mbps Use the same RTMP format and Dest Address replacing d1 with cif Figure 44 3 Channel RTMP Encode Channel 3 Settings ...

Page 37: ... of any tab 7 8 View the Content on Wowza Go to a PC that is on the same network as the Wowza server and open a web browser in this example FireFox is used Type in the URL of the Wowza server with the port 8088 in this example 192 168 0 4 8088 This will bring up the Wowza home page Go ahead and log in with your user name and password At the top you will see 4 options Home Server Applications and H...

Page 38: ...pup screen Select the Adobe RTMP tab change the Stream name to 720 should match one of the directories you are streaming to in the Z3 DME 03 and click Start You should then see the content streamed from the Z3 DME 03 To view the other channels simply change the stream name to d1 or cif 4 Audio and Video start to appear Figure 46 Viewing DME 03 Content on Wowza 1 Select Adobe RTMP tab 2 Type 720 fo...

Page 39: ...ings If you have a specific configuration you d like to preserve you can save it so that when the Z3 DME 03 is powered off and back on it automatically uses those settings For an example of doing this please see the description in Section 6 10 Running DHCP on page 24 8 2 Making a Firmware Update Run the Web Interface Steps 1 9 in Section 6 0 Select update device firmware from the main screen Click...

Page 40: ...owse This brings you to the File Selection Screen From here select the name of the img file to update with and click Open Figure 49 File Selection Screen The image file to be used will typically have the word UPD in the name Click on Upload and Update You will see screens stating that the image is being uploaded and that the flash is being updated After about one minute you should see the main men...

Page 41: ... 8 3 Using the Password Feature In the System Setup tab click on go next to Set Password Once you click on go the change password options appear Enter the new password twice and click change Wait for the password options to disappear This indicates that the password has changed Click change Click here Figure 50 Selecting Set Password Figure 51 Changing the Password Enter new password twice ...

Page 42: ...LC 100 N 8th ST STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 42 Retype the IP address in the web browser You should then see a prompt for a user name and password Use admin for the user name and the value you had entered before for the password You should now be able to access the web GUI Figure 52 Password Entry Screen ...

Page 43: ... settings and a reboot is needed for changes to this value to take effect DNS Server IP 1 a b c d 8 8 8 8 Specifies the primary DNS server to be used for hostname lookup when in static IP mode When in DHCP mode DNS information is acquired from the DHCP server DNS Server IP 2 e f g h 8 8 4 4 Specifies the secondary DNS server to be used for hostname lookup when in static IP mode When in DHCP mode D...

Page 44: ...his release 9 3 The Status Tab Note May take a few seconds to load after being clicked Output Value Explanation Video Status CH The channel number 1 2 or 3 Bitrate Kbps Current target bitrate of encoder Actual Bitrate Actual bitrate being output by encoder FPS Current target frames per second of encoder Actual FPS Actual frames per second being encoded Key frame FPS of key frames per second for ex...

Page 45: ...ing This can serve as a quick sanity check for example you can click Refresh count to 10 click Refresh again and you should see an increase of around 600 for 60 frames per second content Input Status Input Input type Resolution Capture resolution for that input FPS Capture frames per second for that input Refresh Refresh the current status values Auto Refresh If checked causes the values in the st...

Page 46: ...ture resolution Note 1 Video Bitrate 100 12000K 6000K The bitrate Video Profile High Main Baseline The H 264 profile of the bitstream Generally High is used for 1080p Main for D1 and Baseline for D1 Frame Rate Divider 1 2 4 6 Used to encode at less than the input frame rate for example an input frame rate of 30fps with a divider of 2 would cause an output stream of 15fps If interlaced input is use...

Page 47: ...s recommended for best results The bitrate range for AACHE is 32Kbps 64Kbps Sample Rate 48000 Hz 32000 Hz 16000 Hz The sample rate of the audio Bitrate 12Kbps 384Kbps 128Kbps The bitrate of the audio Mode Mono Stereo Select between stereo and mono inputs Source HD SDI HDMI Analog None Where to get audio for that subchannel Pid UDP TS Only 0 8191 120 121 122 123 If UDP format is selected the PID to...

Page 48: ... 6 Streaming RTP on page 17 for more details If UDP is selected don t forget to check the value of TS Rate to make sure it is in line with expectation See Section 7 0 STREAMING RTMP IN THREE DIFFERENT RESOLUTIONS on page 33 for more on using the RTMP format TSFILE will write audio and video to a TS file If this is selected you should type the path name of the file in Dest Address for example media...

Page 49: ...in the TS stream PCR PID UDP Only 0 8191 520 PID assigned to PCR in the TS stream PMT PID UDP Only 0 8191 31 PID assigned to PMT in the TS stream TS Rate UDP Only 125K 20000K 8000K The rate of the transport stream Normally this value should be set to 1 25 video bitrate audio bitrate This can be set to higher values to allow leeway for times when many bits are needed to encode This can be especiall...

Page 50: ...e 1 Encode Resolutions Supported WQVGA 320x180 QVGA 320x240 SIF 352x240 CIF 352x288 2 CIF 352x576 640x360 VGA 640x480 4 CIF 704x576 16 9 PAL 1024x576 D1 PAL 720x576 D1 NTSC 720x480 720p 1280x720 XGA 1280x1024 1080p 1920x1080 Follow input Follow input Generate encoder resolution based on capture resolution detected Note 2 If input is interlaced then Frame Rate Divider will divide the number of fiel...

Page 51: ...files by clicking on new in the User Presets tab Save Click on this to save preset value to what was selected Operating Mode Encoder Interlaced Progressive Encode Single Ch No Scale Encode 1 to 3 Ch Decoder This selects how the Z3 DME 03 is being used Encoder Interlaced Progressive is the default mode of operation it can be used to encode up to two channels Encode Single Ch No Scale is used when o...

Page 52: ...eaming the following steps are needed Log in to the Wowza Streaming Engine Manager Home page by typing http localhost 8088 where localhost is the IP address of the server in this User s Guide 192 168 0 4 Click on Server in the top band of options On the left column click on Performance Tuning and then Java Settings Click Edit and then change Java Heap Size to Production Level and Java Garbage Coll...

Page 53: ...urity Click Edit and then make sure RTMP Publishing and RTSP Publishing are both set to Open and Client Restrictions is set to No client restrictions Then click Save The Wowza server is now configured to work with the Z3 DME 03 Note You can also specify Require password authentication for RTMP Publishing In this case Authentication on the channel tab needs to be enabled and a valid Wowza user name...

Page 54: ...e each other on the network Try pinging the Z3 DME 03 IP address from the PC Try pinging the PC from the Z3 DME 03 Problem Do not see video in VLC UDP Does the IP address set in Dest Address equal the IP address of the PC running VLC Does the port number in Dest Port equal the value entered in the URL for VLC Is the PC fast enough for 1080p decode on VLC Does the PC have enough DDR to handle 1080p...

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