Added logging to audio mixer for debugging cadence errors

diff --git a/core/mixer/audio/audio_mixer.cpp b/core/mixer/audio/audio_mixer.cpp
index 01ab44c69964d37c737811415b2e5799f1773dba..94f099c1e9afd278acf2106bdfc59c1f931f885b 100644 (file)
--- a/core/mixer/audio/audio_mixer.cpp
+++ b/core/mixer/audio/audio_mixer.cpp
@@ -251,8 +251,14 @@ public:
                audio_buffer_ps result_ps(audio_size(audio_cadence_.front()), 0.0);
                for (auto& stream : audio_streams_ | boost::adaptors::map_values)
                {
-                       if(stream.audio_data.size() < result_ps.size())
-                               stream.audio_data.resize(result_ps.size(), 0.0f);
+                       if (stream.audio_data.size() < result_ps.size())
+                       {
+                               auto samples = (result_ps.size() - stream.audio_data.size()) / channel_layout_.num_channels;
+                               CASPAR_LOG(trace) << L"[audio_mixer] Appended " << samples << L" zero samples";
+                               CASPAR_LOG(trace) << L"[audio_mixer] Actual number of samples " << stream.audio_data.size() / channel_layout_.num_channels;
+                               CASPAR_LOG(trace) << L"[audio_mixer] Wanted number of samples " << result_ps.size() / channel_layout_.num_channels;
+                               stream.audio_data.resize(result_ps.size(), 0.0);
+                       }
 
                        auto out = boost::range::transform(result_ps, stream.audio_data, std::begin(result_ps), std::plus<double>());
                        stream.audio_data.erase(std::begin(stream.audio_data), std::begin(stream.audio_data) + std::distance(std::begin(result_ps), out));