From 23ae66151b35750be4b83cf2d3020b947c55e07a Mon Sep 17 00:00:00 2001
From: Henner Zeller <h.zeller@acm.org>
Date: Sun, 21 Jan 2024 10:32:43 -0800
Subject: [PATCH] Make compatible with rtaudio API 5 and 6.

Recent rtaudio changed the API to not throw exceptions anymore and
also have DeviceIDs not queried by index but IDs that are provided
separately ( https://github.com/thestk/rtaudio/releases ).

Adapt the code-base to be compatible with the old and the new API
as we have to exepect that in a transition period both APIs are
common on various build platforms.
---
 sink_modules/audio_sink/src/main.cpp     | 36 ++++++++++++++++++++----
 source_modules/audio_source/src/main.cpp | 33 +++++++++++++++++++---
 2 files changed, 59 insertions(+), 10 deletions(-)

diff --git a/sink_modules/audio_sink/src/main.cpp b/sink_modules/audio_sink/src/main.cpp
index 15b7c260..147e7782 100644
--- a/sink_modules/audio_sink/src/main.cpp
+++ b/sink_modules/audio_sink/src/main.cpp
@@ -31,6 +31,10 @@ public:
         monoPacker.init(&s2m.out, 512);
         stereoPacker.init(_stream->sinkOut, 512);
 
+#if RTAUDIO_VERSION_MAJOR >= 6
+        audio.setErrorCallback(&reportErrorsAsException);
+#endif
+
         bool created = false;
         std::string device = "";
         config.acquire();
@@ -42,12 +46,15 @@ public:
         device = config.conf[_streamName]["device"];
         config.release(created);
 
-        int count = audio.getDeviceCount();
         RtAudio::DeviceInfo info;
+#if RTAUDIO_VERSION_MAJOR >= 6
+        for (int i : audio.getDeviceIds()) {
+#else
+        int count = audio.getDeviceCount();
         for (int i = 0; i < count; i++) {
+#endif
             try {
                 info = audio.getDeviceInfo(i);
-                if (!info.probed) { continue; }
                 if (info.outputChannels == 0) { continue; }
                 if (info.isDefaultOutput) { defaultDevId = devList.size(); }
                 devList.push_back(info);
@@ -55,8 +62,8 @@ public:
                 txtDevList += info.name;
                 txtDevList += '\0';
             }
-            catch (std::exception e) {
-                flog::error("AudioSinkModule Error getting audio device info: {0}", e.what());
+            catch (const std::exception& e) {
+                flog::error("AudioSinkModule Error getting audio device info: id={0}: {1}", i, e.what());
             }
         }
         selectByName(device);
@@ -156,6 +163,23 @@ public:
         }
     }
 
+#if RTAUDIO_VERSION_MAJOR >= 6
+    static void reportErrorsAsException(RtAudioErrorType type,
+                                        const std::string& errorText) {
+        switch (type) {
+        case RtAudioErrorType::RTAUDIO_NO_ERROR:
+            return;
+        case RtAudioErrorType::RTAUDIO_WARNING:
+        case RtAudioErrorType::RTAUDIO_NO_DEVICES_FOUND:
+        case RtAudioErrorType::RTAUDIO_DEVICE_DISCONNECT:
+            flog::warn("AudioSink: {0} ({1})", errorText, (int)type);
+            break;
+        default:
+            throw std::runtime_error(errorText);
+        }
+    }
+#endif
+
 private:
     bool doStart() {
         RtAudio::StreamParameters parameters;
@@ -172,8 +196,8 @@ private:
             audio.startStream();
             stereoPacker.start();
         }
-        catch (RtAudioError& e) {
-            flog::error("Could not open audio device");
+        catch (const std::exception& e) {
+            flog::error("Could not open audio device {0}", e.what());
             return false;
         }
 
diff --git a/source_modules/audio_source/src/main.cpp b/source_modules/audio_source/src/main.cpp
index 99efa379..b7abe253 100644
--- a/source_modules/audio_source/src/main.cpp
+++ b/source_modules/audio_source/src/main.cpp
@@ -35,6 +35,10 @@ public:
     AudioSourceModule(std::string name) {
         this->name = name;
 
+#if RTAUDIO_VERSION_MAJOR >= 6
+        audio.setErrorCallback(&reportErrorsAsException);
+#endif
+
         sampleRate = 48000.0;
 
         handler.ctx = this;
@@ -83,21 +87,25 @@ public:
     void refresh() {
         devices.clear();
 
+#if RTAUDIO_VERSION_MAJOR >= 6
+        for (int i : audio.getDeviceIds()) {
+#else
         int count = audio.getDeviceCount();
         for (int i = 0; i < count; i++) {
+#endif
             try {
                 // Get info
                 auto info = audio.getDeviceInfo(i);
 
                 // Check that it has a stereo input
-                if (info.probed && info.inputChannels < 2) { continue; }
+                if (info.inputChannels < 2) { continue; }
 
                 // Save info
                 DeviceInfo dinfo = { info, i };
                 devices.define(info.name, info.name, dinfo);
             }
-            catch (std::exception e) {
-                flog::error("Error getting audio device info: {0}", e.what());
+            catch (const std::exception& e) {
+                flog::error("Error getting audio device info: id={0}: {1}", i, e.what());
             }
         }
     }
@@ -254,6 +262,23 @@ private:
         return 0;
     }
 
+#if RTAUDIO_VERSION_MAJOR >= 6
+    static void reportErrorsAsException(RtAudioErrorType type,
+                                        const std::string& errorText) {
+        switch (type) {
+        case RtAudioErrorType::RTAUDIO_NO_ERROR:
+            return;
+        case RtAudioErrorType::RTAUDIO_WARNING:
+        case RtAudioErrorType::RTAUDIO_NO_DEVICES_FOUND:
+        case RtAudioErrorType::RTAUDIO_DEVICE_DISCONNECT:
+            flog::warn("AudioSource: {0} ({1})", errorText, (int)type);
+            break;
+        default:
+            throw std::runtime_error(errorText);
+        }
+    }
+#endif
+
     std::string name;
     bool enabled = true;
     dsp::stream<dsp::complex_t> stream;
@@ -290,4 +315,4 @@ MOD_EXPORT void _DELETE_INSTANCE_(ModuleManager::Instance* instance) {
 MOD_EXPORT void _END_() {
     config.disableAutoSave();
     config.save();
-}
\ No newline at end of file
+}