Audio file metadata and thumbnails

PiPedalCommon/src/CMakeLists.txt

@@ -13,8 +13,8 @@ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
 
 if (CMAKE_BUILD_TYPE MATCHES Debug)
     message(STATUS "Debug build")
-
-    set (CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -O0 -DDEBUG -D_GLIBCXX_DEBUG" )
+    # Must not use -D_GLIBCXX_DEBUG (incompatible with SQLiteCpp)
+    set (CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -O0 -DDEBUG " )
 endif()
 
 # Can't get the pkg_check to work.

PiPedalCommon/src/SysExec.cpp

@@ -268,7 +268,7 @@ int pipedal::sysExecWait(ProcessId pid_)
 
 }
 
-SysExecOutput pipedal::sysExecForOutput(const std::string &program, const std::string &args)
+SysExecOutput pipedal::sysExecForOutput(const std::string &program, const std::string &args, bool discardStderr)
 {
     namespace fs = std::filesystem;
     fs::path fullPath = findOnSystemPath(program);
@@ -277,7 +277,13 @@ SysExecOutput pipedal::sysExecForOutput(const std::string &program, const std::s
         throw std::runtime_error(SS("Path does not exist. " << fullPath));
     }
     std::stringstream s;
-    s << fullPath.c_str() << " " << args << " 2>&1";
+    s << fullPath.c_str() << " " << args;
+    if (discardStderr) 
+    {
+        s << " 2>/dev/null";
+    } else {
+        s << " 2>&1"; // redirect stderr to stdout 
+    }
 
     std::string fullCommand = s.str();
     FILE *output = popen(fullCommand.c_str(), "r");

PiPedalCommon/src/include/SysExec.hpp

@@ -34,7 +34,7 @@ namespace pipedal
         std::string output;
     };
 
-    SysExecOutput sysExecForOutput(const std::string& command, const std::string&args);
+    SysExecOutput sysExecForOutput(const std::string& command, const std::string&args, bool discardStderr = false);
 
     using ProcessId = int64_t; // platform-agnostic wrapper for pid_t;
     // Returns a pid or -1 on errror.