整理代码

video/alsa/Input.h

@@ -0,0 +1,53 @@
+#ifndef C0535B0C_9BD8_4FDC_9429_8FEF7E58BFCE
+#define C0535B0C_9BD8_4FDC_9429_8FEF7E58BFCE
+/*
+ *******************************************************************************
+ *                                   INCLUDE
+ *******************************************************************************
+ */
+#include "../core/AbstractAudioInput.h"
+#include "SoundCard.h"
+#include "PCM.h"
+#include "util/SimpleFactory.h"
+
+namespace Video
+{
+namespace ALSA
+{
+/*
+ *******************************************************************************
+ *                                CLASS DECLARE
+ *******************************************************************************
+ */
+class Input: public Core::AbstractAudioInput, public ::Util::SimpleFactory<Input, const std::string&>
+{
+public:
+    using Ptr = Poco::AutoPtr<Input>;
+
+public:
+    Input(const std::string& name);
+    ~Input();
+
+public:
+    CONFIGURABLE_DECLARE_PARAMETER(SoundCard, SoundCard::Ptr);
+
+protected:
+    void start() override;
+    void stop() override;
+    void onConfigChanged(ParameterNames& names) override;
+
+    Core::Frame::Ptr readFrame() override;
+
+    bool tryEstablishSoundCard();
+
+private:
+    PCM               _pcm;
+    std::atomic<bool> _established;
+    int               _linesize;
+    int               _channels;
+    int               _samples;
+    snd_pcm_access_t  _access;
+};
+}
+}
+#endif