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CONFIDENTIAL

DOC-USR-0054-02

____________________________________________________________________________________

Z3 Technology, LLC

♦

100 N. 8th St. STE 250

♦

Lincoln, NE 68508-1369 USA

♦

+1.402.323.0702

5.6

Using “update” to change the bitrate dynamically

The Z3-DME-02 includes an “update” button which allows the user to change the bitrate without
stopping and restarting the encoder. To use this feature, complete the following steps:

(24)

In VLC, click on “tools” and select “Codec Information.” This brings up a window with 4 tabs. Select

the “Statistics” tab. In this tab, you can see the current video+audio bitrate:

(25)

In the CH1 tab of the Web GUI, change the bitrate from “8000K” to “2000K” and click the “update”

button:

Figure 14 Viewing Bitrate in VLC

Video+Audio bitrate

(2) Click “update”

Figure 15 Changing the Bitrate Dynamically

(1) Change bitrate to 2000K

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Содержание Z3-DME-02

Страница 1: ...he manual for future use 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 HDMI Logo are trad...

Страница 2: ...e radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encoura...

Страница 3: ...itrate dynamically 16 5 7 Adjusting the UDP TS Rate 17 5 8 Tuning for Latency 19 5 9 Running DHCP 20 6 0 RUNNING DECODE ON THE Z3 DME 02 23 6 1 Connect the Decoder 23 6 2 Set up the Decoder Z3 DME 02 to work with the Encoder Z3 DME 02 23 6 3 Configure the Encoder 24 6 4 Configure the Decoder 25 7 0 STREAMING RTMP IN 3 DIFFERENT RESOLUTIONS 27 7 1 Connect the Encoder 27 7 2 Configure the Encoder fo...

Страница 4: ...________ Z3 Technology LLC 100 N 8th St STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 9 2 The User Presets Tab 36 9 3 The Status Tab 37 9 4 The CH1 Tab 38 9 5 The CH2 Tab 41 9 6 Values Appearing at the Bottom of All Tabs 41 APPENDIX A CONFIGURING THE WOWZA SERVER FOR RTMP 42 APPENDIX B TROUBLESHOOTING 44 ...

Страница 5: ...anging TS Rate 18 Figure 18 Lower Bitrate and TS Rate Reflected in VLC 19 Figure 19 Tuning for Various Use Cases 19 Figure 20 The User Presets Tab 20 Figure 21 Entering a User Preset Name 20 Figure 22 Selecting z3_test within the System Setup Tab 21 Figure 23 Setting DHCP 21 Figure 24 Saving Preset Values 21 Figure 25 DHCP Address in ZFinder 22 Figure 26 DHCP Address Being Used 22 Figure 27 Z3 DME...

Страница 6: ... applications such as low cost broadcast encoders low bandwidth video security satellite uplink remote monitoring and industrial applications The Z3 DME 02 provides immediate access to multi format HD video integrated system peripherals and production qualified codecs The Z3 DME 02 offers multi format multi channel HD video up to 1080p60 The Z3 DME 02 features HD performance compact size and low l...

Страница 7: ...d other standards Video Inputs 3G SDI Composite Video Outputs 3G SDI HDMI On board video scaler provides full screen with all resolutions Outputs RTP RTMP or MPEG 2 Transport Stream Supports fractional resolutions and frame rates 2 USB 2 0 Interfaces for local storage Web based configuration software for user friendly configuration and control RS232 serial port for technical configuration and cont...

Страница 8: ...___________________ Z3 Technology LLC 100 N 8th St STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 4 0 OPERATING CONTROLS Power Switch USB1 Status Lights Figure 2 Z3 DME 02 Front View Figure 3 Z3 DME 02 Rear View RS232 Port SDI1 In SDI2 In SDI Out Analog Audio In Ethernet USB2 12V In HDMI DVI Out ...

Страница 9: ... an HDMI cable from the HD Source to a monitor Set the HD Source to 1080p30 or 1080i output Select and begin playback of the content Take the HDMI cable connected to the monitor and connect it to HDMI In of the HDMI SDI converter box 2 Connect the BNC cable from the SDI source to the Z3 DME 02 SDI1 Input port see Figure 4 5 2 Connecting and powering up the Z3 DME 02 3 Connect an Ethernet cable to ...

Страница 10: ...ected to the same network which the Z3 DME 02 is connected to 8 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 02 appears 9 Click on the Z3 DME 02 entry in the window to select it This will cause the Edit Device Open Device and Flash LEDs boxes to a...

Страница 11: ...______________________________________ Z3 Technology LLC 100 N 8th St STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 10 Click on Open Device An internet browser window is opened default browser used is Firefox and the Web GUI appears Figure 8 Z3 DME 02 Web GUI System Setup Page ...

Страница 12: ...ched the GUI you are ready to modify the settings for the encode that you want to do Make sure Video Source is HD SDI Change Output Format to UDP and set Dest IP Address to your PC s address 192 168 0 6 in this example and set Dest Port to 5004 Figure 9 Z3 DME 02 Setup for Sample Encode 2 Change Output Format to UDP 3 Make sure Dest Address matches PC IP Address 1 Make sure Video Source is HD SDI ...

Страница 13: ...arted 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 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 changes to STOPPED 3 Click start 1 If necessary click stop Figure 10 Z3...

Страница 14: ...eceive the Encoded Stream 13 Run VLC on your PC version used in testing at Z3 2 08 Any version after 1 1 should be ok 14 Select Media Open Network Stream In the box type udp 192 168 0 6 5 004 where 192 168 0 6 is the PC IP address and 5004 is the port that you set up in step 11 15 Press Enter 16 You should now see video streaming from VLC Figure 11 VLC Open Network Screen Figure 12 Example of Z3 V...

Страница 15: ...example file is provided with the software release from Z3 To stream using RTP complete the following steps 17 Click on stop to stop the current encoding session 18 Change Output Format to RTP 19 Confirm that Dest Port is still 5004 this will be important in VLC configuration 20 Click start to start the encoding session 21 Copy the z3 dm8107 sdp file received from Z3 to your PC 22 Open VLC Select ...

Страница 16: ...nge the bitrate without stopping and restarting the encoder To use this feature complete the following steps 24 In VLC click on tools and select Codec Information This brings up a window with 4 tabs Select the Statistics tab In this tab you can see the current video audio bitrate 25 In the CH1 tab of the Web GUI change the bitrate from 8000K to 2000K and click the update button Figure 14 Viewing B...

Страница 17: ...ected as the output format Normally this value is set to 25 to 33 above the sum of the video and audio bitrate 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 th...

Страница 18: ...o the CH1 tab In this tab click stop Then change Video Resolution to 720x480 Video Bit Rate to 512K and Output Format to USDP Steps 1 4 in the Figure below 28 Once you select UDP TS RATE should appear with the default value of 8000K Change this to 1000K 29 Click start to begin encoding 2 Change to 720x480 4 Change to UDP 1 Click stop 3 Change to 512K 5 Change to 1000K 6 Click start Figure 17 Chang...

Страница 19: ...der has to work with The higher this value the more buffers it has to work with and the more time it has to smooth things out for challenging content However a higher value also causes latency to increase accordingly To minimize latency this value should be set to the lowest possible value The lowest value Z3 recommends is 100 B frames improve the quality of the picture but they also increase the ...

Страница 20: ...p The IP address that is assigned can be seen through the ZFinder tool running on a PC To see how DHCP support works you can do the following steps 31 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 32 This brings up a new text box to enter the preset name Ty...

Страница 21: ...tom of the screen and select as the preset the z3_test configuration you just created 34 As soon as you select z3_test the screen will reload Go ahead and check Use DHCP 35 Now that DHCP is set in z3_test save the configuration by clicking on the Save button 1 Click on System Setup Tab Select z3_test preset Figure 22 Selecting z3_test within the System Setup Tab Check Use DHCP again Figure 23 Sett...

Страница 22: ...sed when the system restarts go ahead and reboot the Z3 DME 02 37 A new IP address is assigned to the unit through DHCP If you go back to ZFinder and click Refresh the new IP address can be seen 38 Select the DME 02 and then click Open Device A web browser will then open at the IP address of the DME 02 and you should see the Web GUI 39 You can go back to Static IP by unchecking Use DHCP and saving...

Страница 23: ...ect HDMI Out of the converter to HDMI In of a monitor 3 Connect the Ethernet to a hub or router connected to the control PC and the streaming source 4 Connect the 12V power to the Z3 DME 02 5 Power on the Decoder Z3 DME 02 6 2 Set up the Decoder Z3 DME 02 to work with the Encoder Z3 DME 02 6 If you are using another Z3 DME 02 as the encoding source you need to make sure that the encoding Z3 DME 02...

Страница 24: ...SA 1 402 323 0702 6 3 Configure the Encoder 7 Go to the Encoder Z3 DME 02 Change the settings to match those in the figure below Here a multicast address is used You can also stream unicast to the Decoder by specifying the IP address of the decoding Z3 DME 02 Using multicast allows you to also open VLC and view the stream from there Figure 28 Encoder Settings for Decoder Example ...

Страница 25: ...teps 6 to 10 in Section 5 to bring up the GUI for the Z3 DME 02 9 You should be at the System Setup Tab From here click on Operating Mode in the lower right corner and change to Decoder 10 Once you do this the description at the top right will change from DME 02 Encoder to DME 02 Decoder and settings for Display Mode Resolution and Layout will appear Change here to Decode Mode Figure 29 Changing t...

Страница 26: ...ecoder appear Modify them so they are identical to the settings below 13 If you haven t already go back to the Encoder board and click start 14 The decoder then initializes the SDI A few seconds later decode should start and you should see a picture hear audio note if HDMI is used up to 5 to 10 seconds might elapse before video appears this is due to the time needed to initialize the HDMI 15 You c...

Страница 27: ...SFILE 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 02 for example 3 1080p30 encodes at 30fps would not be allowed 7 1 Connect the Encoder 1 Follow steps 1 10 in Section 5 0 to connect the Z3 DME 02 for encode and bring up the Encoder GUI 7 2 Confi...

Страница 28: ...A 1 402 323 0702 7 3 Configure CH1 for RTMP Streaming 4 Click on the CH1 tab 5 Set encode to 720p 4Mbps input HD SDI1 6 Set Output Format to RTMP 7 For Dest Address type 10 1 10 251 1935 live 720 where 10 1 10 251 is the IP address of the PC with the Wowza server 8 After youre finished your settings should look like the following Figure 34 3 Channel RTMP Encode Channel 1 Settings ...

Страница 29: ..._____ Z3 Technology LLC 100 N 8th St STE 250 Lincoln NE 68508 1369 USA 1 402 323 0702 7 4 Configure the CH3 for RTMP Streaming 9 Click on the CH3 tab 10 Set encode to 352x240 1Mbps input HD SDI1 11 Use the same RTMP format and Dest Address replacing d1 with cif Figure 35 3 Channel RTMP Encode Channel 3 Settings ...

Страница 30: ... 7 7 View the Content on Wowza 14 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 10 1 10 251 8888 This will bring up the Wowza home page Go ahead and log in with your user name and password 15 At the top you will see 4 options Home Server Applications and Help C...

Страница 31: ...ect the Adobe RTMP tab change the Stream name to 720 should match one of the directories you are streaming to in the DME 02 and click Start You should then see the content streamed from the DME 02 17 To view the other channels simply change the stream name to d1 or cif Figure 37 Viewing DME 02 Content on Wowza 1 Select Adobe RTMP tab 2 Type 720 for Stream name 1080 shown here but you should use 72...

Страница 32: ...s If you have a specific configuration you d like to preserve you can save it so that when the Z3 DME 02 is powered off and back on it automatically uses those settings For an example of doing this please see the description in the Running DHCP section on page 20 8 2 Making a Firmware Update 1 Bring up the Web Interface steps 3 10 in Section 5 0 2 Click on the System Setup tab 3 On the opening scr...

Страница 33: ...owse 5 This brings you to the File Selection Screen From here select the name of the img file to update with an click Open The image file to be used will typically have the word UPD in the name 6 Click on Upload and Update 7 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 menu again 8 Your Z3 DME 02 is...

Страница 34: ... 250 Lincoln NE 68508 1369 USA 1 402 323 0702 8 3 Using the Password Feature 1 In the System Setup tab click on go next to Set Password 2 Once you click on go the change password options appear Enter the new password twice and click change Figure 41 Selecting Set Password Click here Figure 42 Changing the password Enter new password twice Click change ...

Страница 35: ...508 1369 USA 1 402 323 0702 3 Wait for the password options to disappear This indicates that the password has changed 4 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 password that you had entered before 5 You should now be able to access the Web GUI Figure 43 Password Entry Screen ...

Страница 36: ...0 Sets the netmask of the Z3 DME 02 Default Gateway 192 168 a b 192 168 0 1 Can generally leave this as 192 168 0 1 Set Device Name Can use to set name for Z3 DME 02 Set Password Can use to assign a password update device firmware Used to load a new firmware image See Making a Firmware Update on page 32 9 2 The User Presets Tab Parameter Options default in bold Notes new Define a new configuration...

Страница 37: ...tual frames per second being encoded Key frame FPS of key frames per second for example a value of 0 5 means a key frame is inserted every 2 seconds Width Width of encoded picture Height Height of encoded picture Stream Status channel The channel number 1 or 2 URL URL the channel is being streamed to frames of frames sent from encoder to channel since the beginning of encoding This can serve as a ...

Страница 38: ... This should actually be thought of as the of frames after a P frame that the next P frame occurs A value of 1 means 0 B frames occur A value of 2 means 1 B frame and so on GOP Size 10 240 frames 60 I frame frequency Note 2 Maximum Delay 0 9999 2000 of ms to buffer The higher the value the smoother the encode and higher the latency See page 19 Tuning for Latency Audio Enable True False True Encode...

Страница 39: ...File will write raw h264 and raw aac to 2 separate files If this is selected you should type the path name of the H264 file in Dest Address for example media sda1 test h264 If audio is enabled a companion aac file is then created for example for test h264 a companion file test_0 aac is created Dest Address 192 168 x y 192 168 0 6 The IP address that the encoder is streaming to Dest Port 0 9999 500...

Страница 40: ...y CH1 values to CH2 for example delete Used to delete excess tabs created by Clone status IDLE STOPPED RUNNING POLLING Current status of the encoder POLLING indicates start was pressed and the encoder is waiting for valid input data to be detected Note 1 Input Resolutions Supported WQVGA 320x180 QVGA 320x240 SIF 352x240 CIF 352x288 2 CIF 352x576 640x360 VGA 640x480 4 CIF 704x576 16 9 PAL 1024x576 ...

Страница 41: ... 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 DME 02 is being used Encoder Interlaced Progressive is the default mode of operation it can be used to encode up to 2 channels Encode Single Ch No Scale is used when 1 1080p60 encode is desire...

Страница 42: ...o work with the Z3 DME 02 RTMP streaming the following steps are needed 1 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 10 1 10 251 2 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 ...

Страница 43: ... 1 402 323 0702 3 Click on Applications in the top band of options On the left column click on live and then Incoming Security Click Edit and then make sure RTMP Publishing and RTSP Publishing are both set to Open and Client Restrictions are set to No client restrictions Then click Save The Wowza server is now configured to work with the Z3 DME 02 Figure 45 Wowza Security Settings ...

Страница 44: ...ired for this see Z3 for more details on this Are all firewalls on the network turned off Try connecting the PC directly to the board without any routers etc 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 Does the video coming out of the source match ...

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