Compilation on Nanopi board

[JairoBit]

Hello,

I downloaded and tried to compile the latest 2.3.0 release, but was unsuccessful. I'm trying to use it on a NanoPi board, the linux distribution is practically the same as Raspberry.

The first compilation error I solved with "cmake -DDISABLE_WERROR=1 ..":

/home/download/uvgRTP/src/reception_flow.cc:547:36: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare] for (unsigned int i = 0; i < increase; ++i) ^ cc1plus: all warnings being treated as errors CMakeFiles/uvgrtp.dir/build.make:173: recipe for target 'CMakeFiles/uvgrtp.dir/src/reception_flow.cc.o' failed make[2]: [CMakeFiles/uvgrtp.dir/src/reception_flow.cc.o] Error 1 CMakeFiles/Makefile2:237: recipe for target 'CMakeFiles/uvgrtp.dir/all' failed make[1]: [CMakeFiles/uvgrtp.dir/all] Error 2 Makefile:155: recipe for target 'all' failed make: *** [all] Error 2

Solving the first one, a few more came up that I still couldn't solve:

/home/download/uvgRTP/src/rtcp.cc: In member function ‘uvgrtp::frame::rtcp_sender_report uvgrtp::rtcp::get_sender_packet(uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:760:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘uvgrtp::frame::rtcp_receiver_report uvgrtp::rtcp::get_receiver_packet(uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:776:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘uvgrtp::frame::rtcp_sdes_packet uvgrtp::rtcp::get_sdes_packet(uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:792:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘uvgrtp::frame::rtcp_app_packet uvgrtp::rtcp::get_app_packet(uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:808:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘std::vector uvgrtp::rtcp::get_participants() const’: /home/download/uvgRTP/src/rtcp.cc:829:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘bool uvgrtp::rtcp::is_participant(uint32_t) const’: /home/download/uvgRTP/src/rtcp.cc:886:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::init_participant_seq(uint32_t, uint16_t)’: /home/download/uvgRTP/src/rtcp.cc:980:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::update_participant_seq(uint32_t, uint16_t)’: /home/download/uvgRTP/src/rtcp.cc:995:22: error: missing template arguments before ‘prtcp_lock’ std::unique_lock prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc:1015:16: error: ‘prtcp_lock’ was not declared in this scope prtcp_lock.unlock(); ^ /home/download/uvgRTP/src/rtcp.cc:1040:12: error: ‘prtcp_lock’ was not declared in this scope prtcp_lock.unlock(); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::reset_rtcp_state(uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:1057:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘bool uvgrtp::rtcp::collision_detected(uint32_t) const’: /home/download/uvgRTP/src/rtcp.cc:1070:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘void uvgrtp::rtcp::update_session_statistics(const uvgrtp::frame::rtp_frame)’: /home/download/uvgRTP/src/rtcp.cc:1076:21: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::handle_receiver_report_packet(uint8_t, size_t&, size_t, uvgrtp::frame::rtcp_header&)’: /home/download/uvgRTP/src/rtcp.cc:1409:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::handle_sender_report_packet(uint8_t, size_t&, size_t, uvgrtp::frame::rtcp_header&)’: /home/download/uvgRTP/src/rtcp.cc:1463:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::handle_sdes_packet(uint8_t, size_t&, size_t, uvgrtp::frame::rtcp_header&, uint32_t)’: /home/download/uvgRTP/src/rtcp.cc:1531:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::handle_app_packet(uint8_t, size_t&, size_t, uvgrtp::frame::rtcp_header&)’: /home/download/uvgRTP/src/rtcp.cc:1629:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::send_rtcp_packet_to_participants(uint8_t, uint32_t, bool)’: /home/download/uvgRTP/src/rtcp.cc:1664:25: error: missing template arguments before ‘prtcp_lock’ std::lock_guard prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::generate_report()’: /home/download/uvgRTP/src/rtcp.cc:1768:22: error: missing template arguments before ‘prtcp_lock’ std::unique_lock prtcp_lock(participantsmutex); ^ /home/download/uvgRTP/src/rtcp.cc:1780:20: error: expected unqualified-id before ‘[’ token for (auto& [name, hook] : outgoing_apphooks) { ^ /home/download/uvgRTP/src/rtcp.cc:1780:20: error: expected ‘;’ before ‘[’ token /home/download/uvgRTP/src/rtcp.cc:1780:21: error: ‘name’ was not declared in this scope for (auto& [name, hook] : outgoing_apphooks) { ^ /home/download/uvgRTP/src/rtcp.cc:1780:27: error: ‘hook’ was not declared in this scope for (auto& [name, hook] : outgoing_apphooks) { ^ /home/download/uvgRTP/src/rtcp.cc: In lambda function: /home/download/uvgRTP/src/rtcp.cc:1780:33: error: expected ‘{’ before ‘:’ token for (auto& [name, hook] : outgoing_apphooks) { ^ /home/download/uvgRTP/src/rtcp.cc: In member function ‘rtp_error_t uvgrtp::rtcp::generate_report()’: /home/download/uvgRTP/src/rtcp.cc:1780:33: error: expected ‘;’ before ‘:’ token /home/download/uvgRTP/src/rtcp.cc:1780:33: error: expected primary-expression before ‘:’ token /home/download/uvgRTP/src/rtcp.cc:1780:33: error: expected ‘)’ before ‘:’ token /home/download/uvgRTP/src/rtcp.cc:1780:33: error: expected primary-expression before ‘:’ token /home/download/uvgRTP/src/rtcp.cc:1875:20: error: ‘clamp’ is not a member of ‘std’ lost = std::clamp(lost, uint32_t(8388607), uint32_t(8388608)); ^ /home/download/uvgRTP/src/rtcp.cc:1912:5: error: ‘prtcp_lock’ was not declared in this scope prtcplock.unlock(); // End of critical section involving participants ^ CMakeFiles/uvgrtp.dir/build.make:229: recipe for target 'CMakeFiles/uvgrtp.dir/src/rtcp.cc.o' failed make[2]: [CMakeFiles/uvgrtp.dir/src/rtcp.cc.o] Error 1 CMakeFiles/Makefile2:237: recipe for target 'CMakeFiles/uvgrtp.dir/all' failed make[1]: [CMakeFiles/uvgrtp.dir/all] Error 2 Makefile:155: recipe for target 'all' failed make: *** [all] Error 2

[jrsnen]

Hi!

Which C++ standard does your compiler support? We do use some C++17 features, but try to keep so that uvgRTP also compiles with C++14, but it seems some changes have broken this.

I'll ask @tampsa to look into this more closely.

BR, Joni Räsänen

[JairoBit]

Hi, The board had GCC 5.4.0 which supports up to C++14. It was possible to update to GCC 7.4.0 and now everything worked fine, it compiled without errors. Thanks

[tampsa]

Hi, C++14 compiler errors are fixed by commit 62839d8.

-Heikki