diff options
Diffstat (limited to 'src/output/SDR.cpp')
| -rw-r--r-- | src/output/SDR.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/output/SDR.cpp b/src/output/SDR.cpp index 34341bd..b5741a6 100644 --- a/src/output/SDR.cpp +++ b/src/output/SDR.cpp @@ -247,7 +247,6 @@ void SDR::handle_frame(struct FrameData& frame) return; } - double device_time = m_device->get_real_secs(); const auto& time_spec = frame.ts; if (m_config.enableSync and m_config.muteNoTimestamps and @@ -264,6 +263,8 @@ void SDR::handle_frame(struct FrameData& frame) const uint32_t tx_second = frame.ts.timestamp_sec; const uint32_t tx_pps = frame.ts.timestamp_pps; + const double device_time = m_device->get_real_secs(); + if (not frame.ts.timestamp_valid) { /* We have not received a full timestamp through * MNSC. We sleep through the frame. @@ -277,11 +278,13 @@ void SDR::handle_frame(struct FrameData& frame) if (last_tx_time_initialised) { const size_t sizeIn = frame.buf.size() / sizeof(complexf); - uint64_t increment = (uint64_t)sizeIn * 16384000ul / - (uint64_t)m_config.sampleRate; - // samps * ticks/s / (samps/s) - // (samps * ticks * s) / (s * samps) - // ticks + + // Checking units for the increment calculation: + // samps * ticks/s / (samps/s) + // (samps * ticks * s) / (s * samps) + // ticks + const uint64_t increment = (uint64_t)sizeIn * 16384000ul / + (uint64_t)m_config.sampleRate; uint32_t expected_sec = last_tx_second + increment / 16384000ul; uint32_t expected_pps = last_tx_pps + increment % 16384000ul; |