Add PoC PortAudio audio renderer

2026-06-18 06:30:55 +00:00 · 2018-09-21 23:30:47 -07:00
parent e20bf3fbd9
commit 2c960059ee
2 changed files with 230 additions and 0 deletions
@@ -0,0 +1,41 @@
+#pragma once
+
+#include <portaudio.h>
+
+#include "renderer.h"
+
+#define CIRCULAR_BUFFER_SIZE 32
+#define MAX_CHANNEL_COUNT 6
+
+#define CIRCULAR_BUFFER_STRIDE (MAX_CHANNEL_COUNT * SAMPLES_PER_FRAME)
+
+class PortAudioRenderer : public IAudioRenderer
+{
+public:
+    PortAudioRenderer();
+
+    virtual ~PortAudioRenderer();
+
+    virtual bool prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig);
+
+    virtual void submitAudio(short* audioBuffer, int audioSize);
+
+    virtual bool testAudio(int audioConfiguration);
+
+    virtual int detectAudioConfiguration();
+
+    static int paStreamCallback(const void *input,
+                                void *output,
+                                unsigned long frameCount,
+                                const PaStreamCallbackTimeInfo *timeInfo,
+                                PaStreamCallbackFlags statusFlags,
+                                void *userData);
+
+private:
+    PaStream* m_Stream;
+    int m_ChannelCount;
+    int m_WriteIndex;
+    int m_ReadIndex;
+    short m_AudioBuffer[CIRCULAR_BUFFER_SIZE * CIRCULAR_BUFFER_STRIDE];
+};
+