"K3b uses transcode to rip Video DVDs. Please make sure it is installed", even though it is installed.

# lsb_release -rd
Description: Ubuntu 17.04
Release: 17.04

# apt-cache policy k3b
k3b:
  Installed: 2.0.3a+git20170325-0ubuntu2
  Candidate: 2.0.3a+git20170325-0ubuntu2
  Version table:
 *** 2.0.3a+git20170325-0ubuntu2 500
        500 http://us.archive.ubuntu.com/ubuntu zesty/universe amd64 Packages
        100 /var/lib/dpkg/status

As per https://bugs.kde.org/show_bug.cgi?id=379166 , K3B will complain about transcode not being installed, even when it is, when working with a DVD. This is due to the fact that looking for transcode was commented out while checking to see if it was found was not. The following patch uncomments the proper code and allows K3B to rip DVDs again:

diff -ru a/k3b-2.0.3a+git20170325/libk3b/core/k3bdefaultexternalprograms.cpp b/k3b-2.0.3a+git20170325/libk3b/core/k3bdefaultexternalprograms.cpp
--- a/k3b-2.0.3a+git20170325/libk3b/core/k3bdefaultexternalprograms.cpp 2017-04-25 09:11:46.000000000 -0400
+++ b/k3b-2.0.3a+git20170325/libk3b/core/k3bdefaultexternalprograms.cpp 2017-04-20 11:44:27.486662546 -0400
@@ -44,8 +44,6 @@

 void K3b::addTranscodePrograms( K3b::ExternalBinManager* m )
 {
- Q_UNUSED(m);
- /* Deprecated transcode
     static const char* const transcodeTools[] = { "transcode",
                                              0, // K3b 1.0 only uses the transcode binary
                                              "tcprobe",
@@ -57,7 +55,6 @@

     for( int i = 0; transcodeTools[i]; ++i )
         m->addProgram( new K3b::TranscodeProgram( transcodeTools[i] ) );
- */
 }