Differences

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--- faqs:general [2015/05/04 17:31]
rchen [(25) Do Z3 encoders support Closed GOPs?]
+++ faqs:general [2019/05/20 15:30] (current)
cflintiii [Capturing Packet Stream with Wireshark]
@@ Line 12: / Line 12: @@
 <code>
     sudo apt-get install bison flex mtd-utils liblzo2-dev uuid-dev zlib1g-dev libpcre3-dev autoconf \
-         autoconf-archive automake automake1.9 automake1.9-doc libtool libtool-doc
+         autoconf-archive automake automake1.9 libtool libtool-doc lynx xutils-dev
 </code>
@@ Line 21: / Line 21: @@
 <code>
    sudo yum install bison flex mtd-utils mtd-utils-ubi lzo-devel libuuid-devel pcre-devel automake \
-        automake17 automake14 autoconf libtool
+        automake17 automake14 autoconf libtool lynx xorg-x11-server-devel
 </code>
-\\
 ==== (2) Will the code build in a 64-bit environment? ====
@@ Line 34: / Line 31: @@
 <code>
-    sudo apt-get install ia32-libs
+   sudo dpkg --add-architecture i386
+   sudo apt-get update
+   sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 zlib1g:i386
 </code>
@@ Line 44: / Line 43: @@
     sudo yum install glibc.i686
 </code>
-\\
 ==== (3) What versions of Linux can I use to build the Z3 codebase? ====
@@ Line 1017: / Line 1013: @@
 Yes, Z3's encoders all generate Closed GOPs.
+\\
+==== (26) What are the maximum bitrates that can be used for each encoding platform? ====
+The following are the maximum recommended bitrates for streaming for each platform:
+^Platform ^ Maximum Streaming Bitrate |
+|DM368   | 16Mbps |
+|DM8107  | 35Mbps |
+|DM8148  | 35Mbps |
+|DM8168  | 50Mbps |
+Note that, when encoding to a file, limitations of the media used may apply.
 \\
@@ Line 1564: / Line 1575: @@
 \\
-==== (17) How do you change the timeout value for decode? ====
+==== (17) How do you modify files in the DM368 file system? ====
-The timeout command can be found by running
-<code>
-    grep -e 'read -t'  /opt/dvsdk/*.sh
-</code>
 To change files on the DM36x filesystem, you need to make it writable first:
@@ Line 1585: / Line 1590: @@
 \\
-==== (18) What size SD cards are supported? ====
+==== (18) How do you change the timeout value for decode? ====
+The timeout command can be found by running
+<code>
+    grep -e 'read -t'  /opt/dvsdk/*.sh
+</code>
+See question (17) on making the DM368 file system writable so changes can be made.
+\\
+==== (19) What size SD cards are supported? ====
 Any firmware released in 2012 or later supports up to 32GB.
@@ Line 1591: / Line 1609: @@
 \\
-==== (19) Are mini-SD cards (with adapter) supported in the SD card slot? ====
+==== (20) Are mini-SD cards (with adapter) supported in the SD card slot? ====
 Yes they are.
 \\
-==== (19) After updating the firmware and trying to write the configuration we get a "mounting /dev/mtdblock5 on /tmp/config failed" message.  What can we do? ====
+==== (21) After updating the firmware and trying to write the configuration we get a "mounting /dev/mtdblock5 on /tmp/config failed" message.  What can we do? ====
 Somehow mtd5 got in an unknown state in the update process.  You can get mtd5 back in a known state by typing:
@@ Line 1606: / Line 1624: @@
 \\
-==== (20) I have a DM368-SDI-RPS. When switching from encoder to decoder mode, the decoder runs, but it shows a black screen with audio only. ====
+==== (22) I have a DM368-SDI-RPS. When switching from encoder to decoder mode, the decoder runs, but it shows a black screen with audio only. ====
 The DM368-SDI-RPS and DM368-VI-RPS require a power cycle between changing from encoder to decoder mode.  Note that a power cycle is not needed for the DM368-RPS.
@@ Line 1612: / Line 1630: @@
 \\
-==== (21) I am getting a "failed to encode video buffer" message.  What could be causing this? ====
+==== (23) I am getting a "failed to encode video buffer" message.  What could be causing this? ====
 This can happen if high bitrates are used for sub-D1 resolutions (for example, > 1Mbps for CIF).  To avoid
@@ Line 1624: / Line 1642: @@
 \\
-==== (22) We are seeing an 'hCapture failed' message.  What could be causing this? ====
+==== (24) We are seeing an 'hCapture failed' message.  What could be causing this? ====
 The full message is:
@@ Line 1637: / Line 1655: @@
 \\
-==== (23) Is encode of 29.97 / 59.94Hz content supported? ====
+==== (25) Is encode of 29.97 / 59.94Hz content supported? ====
 Yes it is.  The DM368-based products will automatically detect 29.97 and 59.94 Hz and encode at that rate.
@@ Line 1643: / Line 1661: @@
 \\
-==== (24) How do I reconfigure startup behavior? ====
+==== (26) How do I reconfigure startup behavior? ====
 Behavior at startup is controlled in /root/.profile on the board filesystem.
@@ Line 1649: / Line 1667: @@
 \\
-==== (25) What are the specifications of the audio RCA inputs on the DM368 APP board? ====
+==== (27) What are the specifications of the audio RCA inputs on the DM368 APP board? ====
 The specifications are:
@@ Line 1661: / Line 1679: @@
 \\
-==== (26) We are using our own hardware with its own Ethernet chip.  It appears that the Ethernet packets are being corrupted somehow when we send RTP.  What should we look at? ====
+==== (28) We are using our own hardware with its own Ethernet chip.  It appears that the Ethernet packets are being corrupted somehow when we send RTP.  What should we look at? ====
 This points to the Ethernet switch getting overloaded.  You can try adjusting the delay between packets with the parameter "--interpacketgap".  The default value is 150 microseconds.
@@ Line 1669: / Line 1687: @@
 \\
-==== (27) When decoding DVB-ASI, how do you select which program to decode? ====
+==== (29) When decoding DVB-ASI, how do you select which program to decode? ====
 Use the "port" value to select.  "1" is the first program, "2" is the second program etc.
@@ Line 1675: / Line 1693: @@
 \\
-==== (28) On the DME-01, what inputs/outputs are used for DVB-ASI decode / HD-SDI output? ====
+==== (30) On the DME-01, what inputs/outputs are used for DVB-ASI decode / HD-SDI output? ====
 The middle BNC connector is used for ASI In (same as "SDI In").  The left BNC connector is used for SDI Out (same as "ASI Out").
@@ Line 1681: / Line 1699: @@
 \\
-==== (29) There are 3 different ubl.bin files generated.  How do I know which one to use? ====
+==== (31) There are 3 different ubl.bin files generated.  How do I know which one to use? ====
 ubl_DM36x_nand_270_243.bin is for nominal timing for the DM365.
@@ Line 1691: / Line 1709: @@
 \\
-==== (30) Is HDMI display supported on the DM365/DM368? ====
+==== (32) Is HDMI display supported on the DM365/DM368? ====
 Yes.  RTPRX supports HDMI output.  Select the "component" option to cause video data to go to the HDMI.  It may also be necessary to run the HDMI driver.  This can be done by typing the following before running RTPRX:
@@ Line 1701: / Line 1719: @@
 \\
-==== (31) How do I change the MAC address on my DM365/DM368 unit? ====
+==== (33) How do I change the MAC address on my DM365/DM368 unit? ====
 The MAC address can be changed in u-boot by doing the following steps:
@@ Line 1715: / Line 1733: @@
 \\
-==== (32) What file systems are supported on the DM365/DM368? ====
+==== (34) What file systems are supported on the DM365/DM368? ====
 VFAT and EXT3 are supported.
@@ Line 1721: / Line 1739: @@
 \\
-==== (33) What is the maximum sizes of flash drives connected to DM365/DM368? ====
+==== (35) What is the maximum sizes of flash drives connected to DM365/DM368? ====
 For VFAT, the limit is 32GB.  For EXT3, the limit is 2TB.
@@ Line 1727: / Line 1745: @@
 \\
-==== (34) Is it possible to configure the DM368 system so that it autostarts after reset? ====
+==== (36) Is it possible to configure the DM368 system so that it autostarts after reset? ====
 Yes it is.  To do this, save the settings while an encode is running.
 \\
 ===== DM814X/DM816X-specific questions (EZSDK) =====
@@ Line 2374: / Line 2394: @@
 ==== (32) I see a greenish tint when encoding HDMI with a DM8107 MOD.  What could be the cause? ====
-This is indicative of the one of the 2 ribbon connectors in the back of the module being lose.  Please double-check those connections.
+This is indicative of the one of the 2 ribbon connectors in the back of the module being loose.  Please double-check those connections.
 \\
@@ Line 2403: / Line 2423: @@
 The best way to do this is to remove "S99webserver.sh" from /etc/rc5.d on the system.
+\\
+==== (36) I want to telnet to the board and run the same menu of options that you see when you run through the serial console.  How do I do this? ====
+After telnet'ing into the board, you can type the following command (for DM816X products):
+<code>
+   /opt/dvr_rdk/ti816x/run_mcsenc.sh
+</code>
+For DM8107 and DM8148 products, the "ti816x" would change to "ti810x" and "ti814x", respectively.
 \\
+==== (37) I want to use serial port 0 for something else besides the console.  How do I configure serial port 0 so it no longer outputs the console? ====
+This can be done by editing the "console" environment variable in u-boot.  Currently it is set to:
+<code>
+   console=ttyO0,115200,quiet
+</code>
+You can reroute the console output to the second serial port instead by typing while in the Linux prompt on your target board:
+<code>
+   fw_setenv console=ttyO1,115200,quiet
+</code>
+You also need to edit /etc/inittab to keep getty from respawning on ttyO0.
+\\
 ===== Miscellaneous =====
@@ Line 2492: / Line 2545: @@
 \\
-==== (8) We have a DM8169 product and want to add support for Service Description Tables (SDT) and Stream Identifier (SID) to conform to ISO 13818-11 and ETSI EN 300 468 V1.14.1.  Is this possible to do? ====
+==== (8) We have a DM8169 product and want to add support for Service Description Tables (SDT) and Stream Identifier (SID) to conform to ISO 13818-11 and ETSI EN 300 468 V1.14.1. Is this possible to do? ====
+Yes. You can use the function tsmux_add_user_table() to support this. This applies to both the EZSDK and the RDK.
+===== General Troubleshooting  =====
+==== Capturing Packet Stream with Wireshark ====
+) Download and install [[http://www.wireshark.org|Wireshark ]]and associated programs to enable live stream capture on the PC you already use VLC Media Player. A Restart will be required once installation is complete.
+) Set encoder for RTP/RTSP transfer and begin encoding as described in your product's manual.
+) Open Wireshark. Double click the "Ethernet" near the center of the window to automatically begin capture.
+{{  http://wiki.z3technology.com//lib/plugins/ckgedit/fckeditor/userfiles/image/faqs/media_servers/wireshark_start.jpg?nolink&819x599  }}
+) Open VLC Media Player on the Same PC and begin Streaming RTSP as described in your product's manual.
+) Allow Stream to capture for 1 minute. Click the Red Stop button on the menu bar of Wireshark.
+{{  http://wiki.z3technology.com//lib/plugins/ckgedit/fckeditor/userfiles/image/faqs/media_servers/wireshark_running.jpg?nolink&819x599  }}
+) Hit <cntrl+S> or the Save button at the top of the window to open a save dialog. Give the file a name of your choice that you will remember.
+\\
+{{  http://wiki.z3technology.com//lib/plugins/ckgedit/fckeditor/userfiles/image/faqs/media_servers/wireshark_stop.jpg?nolink&819x601  }}
+) Attach the saved file to an email and send it to Z3 Technology.
+====  ====
-Yes.  You can use the function tsmux_add_user_table() to support this.  This applies to both the EZSDK and the RDK.
+==== Z3 Cam Solutions Forgotten Password ====
+To reset a forgotten password you will need physical access to the unit.
+Create a file called **z3passreset ** on an empty SD Card or USB flash drive; insert the SD Card or USB flash drive and power cycle the unit to reset the password to nothing.

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