kmttg / Wiki / mac_osx

John Clouse - 2016-12-02

"Looks like for some reason, JRE 8 installs on Mac no longer put java in path, so you have to add java to your path manually. One way to do that is execute following from command line:
sudo rm /usr/bin/java; sudo ln -s "/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java" /usr/bin/java"

Anyone who can explain to me how to do this?

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- Rick Carter - 2017-04-11
  
  You would bring up Terminal.app and then run that line. I'm guessing you're not super technical; apologies if this is overexplaining, but ... you'll have to be an administrator on the Mac (you almost certainly are if it's your own Mac and you have one account), to run that line in Terminal.app, and type your password in when it asks.
  
  However, I'm on MacOS 10.12 and even as root the above command fails; the /usr/bin/java link is apparently protected better with ACLs (a special way of protecting files so even the root user can't erase or move them).
  
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John - 2017-04-16

Had to do one more Terminal command to get things to work on >10.11. No problems after that. Good job on the new version. I've been a user for a long time. Thank you for your work on this.

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- Vincent Randal - 2017-04-16
  
  What was your additional terminal command that got things to work?
  
  Vincent Randal
  Longmont, Colorado
  
  On Sat, Apr 15, 2017 at 6:04 PM, John johnnyg08@users.sf.net wrote:
  
  Had to do one more Terminal command to get things to work on >10.11. No
  problems after that. Good job on the new version. I've been a user for a
  long time. Thank you for your work on this.
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/kmttg/wiki/mac_osx_installation/
  
  To unsubscribe from further messages, please visit
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  alternate
  
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John - 2017-04-16

Any solutions for video/audio sync issues on ff_h264_high_rate?

Seems to be an issue in the HD, when I convert it to .mp4, it's a lower quality but no sync issues w/ video/audio.

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Brian - 2018-10-31

The Java "client" or JRE versioning has become even more of a nightmare than ever to sort out for the layman. On macOS in particular, Apple Safari 12 finally dropped support for the Java "plug-in" that had been included with the OS (which up until 10.14 "Mojave" was linked to the Java 8.x series JRE installed in "/Library/Internet Plugins").

If the user was unfortunate enough to have gotten as far as installing JRE 10 from Oracle in the past year or so (thinking they were keeping things "up to date"), it gets even worse as the "updater" they just released actually just removes all traces of all versions of the "plug-in" (and the JRE 8.x in /Library/Internet Plugins) as well as the System Preference control panel that people are used to seeing.

If a user just tries to install the "latest" Java (as the "OR LATER" reference at the top of this page suggests), which as of this post is 11.0.1 with SE Runtime Environment 18.9 (build 11.0.1+13-LTS), then kmttg won't run at all. If the user then tries to back track and (re-)install "Oracle Java version 1.8.0_40 or later" (currently Java SE 8u191 or 192), then [kmttg will launch but Auto Transfers] -still- won't work because Java 11 links /usr/bin/java to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java instead of the re-installed Java 8.x version in /Library/Internet/Plug Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java.

So while the "Java Path" comment/command [in Step 1] ends up still be a somewhat inadvertent correction to that whole mess, it only works if the correct 8.x version had been re-installed prior to running that command. And users may not try that if they see version 11.x is the "latest".

This is obviously not KMTTG's "fault". However, my suggestion in an effort to at least make this page more accurate at present, is to at least remove the "1.8.0_40 OR LATER" reference as the "or later" is currently definitely no longer true. (At least until kmttg potentially becomes Java 11's JRE compatible?)

Last edit: Brian 2019-03-11

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- Tony Fabris - 2019-03-10
  
  Brian, thank you for the excellent explanation of the current issues with JRE and MacOs as they relate to KMTTG.
  
  Do you know the correct way to work around these issues and get KMTTG working on the latest MacOs?
  
  My current state is:
  • I went to this link: http://java.com/en/download/manual.jsp
  • I downloaded and installed the version of Java shown there which was "Recommended Version 8 Update 201 - Release date January 15, 2019 "
  • I did not attempt to install the Java SE platform found here: https://www.oracle.com/technetwork/java/javase/downloads/index.html
  • I attempted to execute the instructions given at the top of this page and was thwarted because, as was said, these instructions no longer work because the files are protected by ACL's and Sudo doesn't work for them any more.
  
  sudo rm /usr/bin/java; sudo ln -s "/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java" /usr/bin/java
  
  So if I want to run KMTTG on my Mac now, what is my next step?
  
  Last edit: Tony Fabris 2019-03-10
  
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  - Brian - 2019-03-10
    
    Tony, this may sound like a dumb question but have you tried just double-clicking kmttg in the Finder (without trying to futz with the Java setup further)? If you installed Version 8 Update 201, it updates the JRE in /Library/Internet Plug-Ins. While this version is no longer used by Safari 12, it is still used by macOS' Jar Launcher, the core component of the OS that allows Java .jar files (like kmttg) to be double-clickable (launched) in the Finder.
    
    Note this won't help you with trying to start the Background Job for Autotransfers once kmttg is running. That occurs in an OS shell and is a different problem.
    
    Last edit: Brian 2019-03-11
    
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    - Tony Fabris - 2019-03-10
      
      Thank so much, Brian!
      
      It is not a dumb question. Indeed, I had not simply tried running it yet. I wanted to make sure I wasn't going to mess anything up by failing to follow the directions .
      
      I'll give it a shot and see how it does. I had only needed to run it by hand, I don't need automatic transfers. So if the issues are only with auto transfers, I shoukd theoretically be OK.
      
      Thank you!
      
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    - JKT - 2020-09-18
      
      Yes, I have just tried running it. Even though I installed the latest version of Java for OS X, I'm still told that kttmg won't run because I need to install a JRE. After banging my head against it for a while, I did get it working. I've authored a blog post to tell others how to get the Mac to recognize Java is installed and get kttmg to work. Here it is: https://kurttappe.com/2020/09/18/enabling-java-in-macos/
      
      Last edit: JKT 2020-09-18
      
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Brian - 2019-03-11

I wrote up an updated version of the first step of these instructions to account for changes to Oracle Java and installations on macOS. I didn't want to fully modify the Wiki without permission so I am adding them here.

1. INSTALL JAVA 8 IF NEEDED

Kmttg is written in Java and the latest versions require Oracle Java version 8 (1.8.0_xx) where xx is any current version above 40 (i.e. 1.8.0_201). Java 11 is not currently supported.

To determine if you have an appropriate Java 8 JRE (Java Runtime Environment) already installed, open Terminal and type (you can cut and paste the line):

/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java -version

If it returns "java version 1.8.0_xx" where xx is any version above 40 then you already have an appropriate Java JRE installed and can skip to step 2 (above). If you need to update your JRE first, you can download the version 8 JRE for macOS from here:

http://java.com/en/download/manual.jsp

IMPORTANT NOTE: As of October 2018, Oracle is no longer offering the Java 10.x JRE. This means the "latest" pre-11.x and kmttg supported version has reverted back to 8.x (1.8.0_xx). Despite Safari 12.x no longer supporting the Java JRE either, the core component of macOS that permits a .jar file to be double-clicked (launched) in the Finder still is.

Also note that any installations of the Java SE /Oracle JDK (this is different than the JRE) newer than 8.x (1.8.0_xx), which would be found in /Library/Java/JavaVirtualMachines, will prevent the Auto Transfers feature from being able to enable (start) the background job properly. There is no "path trick" in the shell to override this due to how the kmttg.jar file is launched using the 8.x JRE as noted above. Your options are:
1) If you need to keep the newer JDK for other uses, you can manually start the background job via Terminal by forcing the use of the 8.x JRE (you can cut and paste the line):
/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java -jar /Applications/kmttg/kmttg.jar -a &
(You can close the Terminal and the job will continue to run in the background until your system is restarted.)
2) If you don't otherwise need the newer JDK, uninstall it. Then you can start the Auto Transfer background job from the kmttg GUI.

I hope that helps those new to kmttg on macOS!

Last edit: Brian 2019-03-11

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- Tony Fabris - 2019-03-11
  
  Brian, thank you so much for your help and for those updates!
  
  As you suggested, simply clicking on the .JAR file allowed it to run more or less just fine as long as I had instaled 1.8.0_xx. It retrieves recordings from the Tivo and decodes them as expected, as long as I'm doing the steps manually.
  
  Thank you!
  
  I have a separate problem, which, I have no idea if it is related to the command-line Java issues being discussed here. I'll describe the issue here briefly, and if you think it could be related to the command line Java issues, then let me know if you have any suggestions. If not, then I will try other locations to locate the source of the issue. Briefly, the issue is: I have the "encode" tickybox ticked in KMTTG, so that it is (I think) supposed to convert the downloaded/decoded file into an "mp4" file. However, at the end of the process, there is no "mp4" file in the destination folder. There is a ".ts" file there, and though the file plays correctly in VLC, I'm not sure the MP4 encoding step is even being done at all. I have performed an "update tools" in KMTTG, so I expect that ffempeg should theoretically be updated correctly. I wonder if the encoding step is being launched via Java command line, and thus might be failing on my system?
  
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- JKT - 2020-09-18
  
  Thank you for this. I get back an acceptable Java version from this command. However, kttmg still won't run for it claims I need to install JDK. I did get it to work and documented how here: https://kurttappe.com/2020/09/18/enabling-java-in-macos/
  
  Last edit: JKT 2020-09-18
  
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Brian - 2019-03-11

Tony, I don't want to go too off topic here as this is the feedback thread for this Wiki page. I suggest posting general question to the Discussions forum in the future but I'll reply to you directly as I know the answer. (It is not Java related)

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- Tony Fabris - 2019-03-11
  
  Agreed, it would only be relevant here if it were java related and if the problem could be corrected by updating the installation instructions. Thanks!
  
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jim page - 2019-11-23

Returning to java issues, I am relatively new to kmttg having set it successfully once previously but now struggling with a new installation on a different computer. I've read the alternate instructions and tried multiple times with no success. I'm not exceptionally techy, generally can follow what I'm reading and the cut and paste into terminal instructions are a big help.

I have a little macmini running Mavericks (OSX10.9.5). I downloaded and unpacked all the kmttg stuff and installed the JRE. Here's the output showing my JRE:

/Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java -version
java version "1.8.0_231"
Java(TM) SE Runtime Environment (build 1.8.0_231-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.231-b11, mixed mode)

I've put the kmttg folder in my Applications folder and when I double-click on kmttg.jar the process launches for an instant, then shuts down and I get a Java Quit Unexpectedly error:

Process: java [7753]
Path: /Library/Internet Plug-ins/JavaAppletPlugin.plugin/Contents/Home/bin/java
Identifier: java
Version: 1.0 (1.0)
Code Type: X86-64 (Native)
Parent Process: Jar Launcher [7751]
Responsible: Jar Launcher [7751]
User ID: 501

Date/Time: 2019-11-23 10:46:00.577 -0600
OS Version: Mac OS X 10.9.5 (13F1911)
Report Version: 11
Anonymous UUID: 5A12260C-C4EF-6CCE-BB25-D34035981E8B

Sleep/Wake UUID: 5542CE43-7D5A-46F6-98C3-9CAB98BECA90

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000

Dyld Error Message:
Symbol not found: _CCRandomGenerateBytes
Referenced from: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/libjfxwebkit.dylib
Expected in: /usr/lib/libSystem.B.dylib

I've uninstalled and reinstalled the JRE to no avail and am now at a loss for how to get past this error. Can anyone give me some guidance? Thanks.

Last edit: jim page 2019-11-23

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kmttg Wiki

TiVo To Go and advanced Remote Control

mac_osx_installation Edit

KMTTG MAC OSX INSTALLATION

1. INSTALL JAVA 8-10 IF NEEDED

2. DOWNLOAD KMTTG INSTALLATION ZIP FILE

3. UNPACK ZIP FILE

UPGRADE INSTALLATION TIPS (Version v1p0a or later)

UPGRADE INSTALLATION TIPS (older versions of kmttg)

STARTING KMTTG

captions task for Mac OS

PPC Platform tivodecode binary

Related

Discussion

1. INSTALL JAVA 8 IF NEEDED