diff options
Diffstat (limited to 'src/OutputUHD.cpp')
| -rw-r--r-- | src/OutputUHD.cpp | 133 |
1 files changed, 77 insertions, 56 deletions
diff --git a/src/OutputUHD.cpp b/src/OutputUHD.cpp index e4b57bc..d78c4bf 100644 --- a/src/OutputUHD.cpp +++ b/src/OutputUHD.cpp @@ -56,8 +56,12 @@ typedef std::complex<float> complexf; std::string stringtrim(const std::string &s) { - auto wsfront = std::find_if_not(s.begin(), s.end(), [](int c){return std::isspace(c);} ); - return std::string(wsfront, std::find_if_not(s.rbegin(), std::string::const_reverse_iterator(wsfront), [](int c){return std::isspace(c);} ).base()); + auto wsfront = std::find_if_not(s.begin(), s.end(), + [](int c){ return std::isspace(c);} ); + return std::string(wsfront, + std::find_if_not(s.rbegin(), + std::string::const_reverse_iterator(wsfront), + [](int c){ return std::isspace(c);} ).base()); } void uhd_msg_handler(uhd::msg::type_t type, const std::string &msg) @@ -639,16 +643,29 @@ void UHDWorker::process() num_underflows = 0; num_late_packets = 0; + int last_num_underflows = 0; + size_t pop_prebuffering = FRAMES_MAX_SIZE; + while (uwd->running) { md.has_time_spec = false; md.time_spec = uhd::time_spec_t(0.0); struct UHDWorkerFrameData frame; etiLog.log(trace, "UHD,wait"); - uwd->frames.wait_and_pop(frame); + uwd->frames.wait_and_pop(frame, pop_prebuffering); etiLog.log(trace, "UHD,pop"); handle_frame(&frame); + + /* Ensure we fill uwd->frames after every underrun and + * at startup to reduce underrun likelihood. */ + if (last_num_underflows < num_underflows) { + pop_prebuffering = FRAMES_MAX_SIZE; + } + else { + pop_prebuffering = 1; + } + last_num_underflows = num_underflows; } } @@ -780,21 +797,6 @@ void UHDWorker::handle_frame(const struct UHDWorkerFrameData *frame) } tx_frame(frame, timestamp_discontinuity); - - auto time_now = std::chrono::steady_clock::now(); - if (last_print_time + std::chrono::seconds(1) < time_now) { - if (num_underflows or num_late_packets) { - etiLog.log(info, - "OutputUHD status (usrp time: %f): " - "%d underruns and %d late packets since last status.\n", - usrp_time, - num_underflows, num_late_packets); - } - num_underflows = 0; - num_late_packets = 0; - - last_print_time = time_now; - } } void UHDWorker::tx_frame(const struct UHDWorkerFrameData *frame, bool ts_update) @@ -834,51 +836,70 @@ void UHDWorker::tx_frame(const struct UHDWorkerFrameData *frame, bool ts_update) "UHDWorker::process() unable to write to device, skipping frame!\n"); break; } - - print_async_metadata(frame); } } -void UHDWorker::print_async_metadata(const struct UHDWorkerFrameData *frame) +void UHDWorker::print_async_metadata() { - uhd::async_metadata_t async_md; - if (uwd->myUsrp->get_device()->recv_async_msg(async_md, 0)) { - const char* uhd_async_message = ""; - bool failure = false; - switch (async_md.event_code) { - case uhd::async_metadata_t::EVENT_CODE_BURST_ACK: - break; - case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW: - uhd_async_message = "Underflow"; - num_underflows++; - break; - case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR: - uhd_async_message = "Packet loss between host and device."; - failure = true; - break; - case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR: - uhd_async_message = "Packet had time that was late."; - num_late_packets++; - break; - case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET: - uhd_async_message = "Underflow occurred inside a packet."; - failure = true; - break; - case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST: - uhd_async_message = "Packet loss within a burst."; - failure = true; - break; - default: - uhd_async_message = "unknown event code"; - failure = true; - break; + while (uwd->running) { + uhd::async_metadata_t async_md; + if (uwd->myUsrp->get_device()->recv_async_msg(async_md, 1)) { + const char* uhd_async_message = ""; + bool failure = false; + switch (async_md.event_code) { + case uhd::async_metadata_t::EVENT_CODE_BURST_ACK: + break; + case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW: + uhd_async_message = "Underflow"; + num_underflows++; + break; + case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR: + uhd_async_message = "Packet loss between host and device."; + failure = true; + break; + case uhd::async_metadata_t::EVENT_CODE_TIME_ERROR: + uhd_async_message = "Packet had time that was late."; + num_late_packets++; + break; + case uhd::async_metadata_t::EVENT_CODE_UNDERFLOW_IN_PACKET: + uhd_async_message = "Underflow occurred inside a packet."; + failure = true; + break; + case uhd::async_metadata_t::EVENT_CODE_SEQ_ERROR_IN_BURST: + uhd_async_message = "Packet loss within a burst."; + failure = true; + break; + default: + uhd_async_message = "unknown event code"; + failure = true; + break; + } + + if (failure) { + etiLog.level(alert) << + "Received Async UHD Message '" << + uhd_async_message << "' at time " << + md.time_spec.get_real_secs(); + + } } - if (failure) { - etiLog.level(alert) << "Near frame " << - frame->ts.fct << ": Received Async UHD Message '" << - uhd_async_message << "'"; + auto time_now = std::chrono::steady_clock::now(); + if (last_print_time + std::chrono::seconds(1) < time_now) { + const double usrp_time = + uwd->myUsrp->get_time_now().get_real_secs(); + + if (num_underflows or num_late_packets) { + etiLog.log(info, + "OutputUHD status (usrp time: %f): " + "%d underruns and %d late packets since last status.\n", + usrp_time, + num_underflows, num_late_packets); + } + num_underflows = 0; + num_late_packets = 0; + last_print_time = time_now; } } } |