initial import

1 files changed, 123 insertions, 0 deletions

diff --git a/dxr3syncbuffer.h b/dxr3syncbuffer.h
new file mode 100644
index 0000000..1598b62
--- /dev/null
+++ b/dxr3syncbuffer.h
@@ -0,0 +1,123 @@
+/*
+ * dxr3syncbuffer.h: 
+ *
+ * See the main source file 'dxr3.c' for copyright information and
+ * how to reach the author.
+ *
+ */
+
+#ifndef _DXR3SYNCBUFFER_H_
+#define _DXR3SYNCBUFFER_H_
+
+#include <stdint.h>
+
+#include "dxr3vdrincludes.h"
+#include "dxr3interface.h"
+#include "dxr3generaldefines.h"
+#include "dxr3nextpts.h"
+#include "dxr3log.h"
+
+// ==================================
+const uint32_t UNKNOWN_CHANNEL_COUNT = 0xFFFFFFFF;
+const uint32_t UNKNOWN_DATA_RATE = 0xFFFFFFFF;
+const uint32_t UNKNOWN_ASPECT_RATIO = 0xFFFFFFFF;
+
+// ==================================
+class cFixedLengthFrame 
+{    
+public: 
+    explicit cFixedLengthFrame(uint32_t length);
+    ~cFixedLengthFrame();
+   
+    void CopyFrame(const uint8_t* pStart, int length, uint32_t pts, eFrameType type);
+    uint8_t* GetData(void);
+    int GetCount(void);
+    uint32_t GetPts(void);
+    void SetPts(uint32_t pts);
+    void SetChannelCount(uint32_t channelCount) {if (channelCount != UNKNOWN_CHANNEL_COUNT) m_staticAudioChannelCount = m_audioChannelCount = channelCount; else m_audioChannelCount = m_staticAudioChannelCount; };
+    void SetDataRate(uint32_t dataRate) {if (m_audioDataRate != UNKNOWN_DATA_RATE) m_staticAudioDataRate = m_audioDataRate = dataRate; else m_audioDataRate = m_staticAudioDataRate;};
+    void SetAspectRatio(uint32_t aspectRatio) {m_videoAspectRatio = aspectRatio;};
+    uint32_t GetChannelCount(void) {return ((m_audioChannelCount == m_staticAudioChannelCount || !m_staticAudioChannelCount)? m_audioChannelCount : m_staticAudioChannelCount) ;};
+    uint32_t GetDataRate(void) {return ((m_audioDataRate == m_staticAudioDataRate || !m_staticAudioDataRate) ? m_audioDataRate : m_staticAudioDataRate);};
+    uint32_t GetAspectRatio(void) {return m_videoAspectRatio;};
+    eFrameType GetFrameType(void) {return m_type;}
+
+    static void Clear(void) {m_staticAudioDataRate = 0; m_staticAudioChannelCount = 0;};
+
+protected:
+    uint8_t* m_pData;
+    int m_count;
+    int m_length;
+    uint32_t m_pts;
+    eFrameType m_type;
+    
+    uint32_t m_audioChannelCount;
+    uint32_t m_audioDataRate;
+    uint32_t m_videoAspectRatio;
+
+    static uint32_t m_staticAudioChannelCount;
+    static uint32_t m_staticAudioDataRate;
+    
+private:
+    cFixedLengthFrame(); // you are not allowed to use this constructor
+    cFixedLengthFrame(cFixedLengthFrame&); // no copy constructor
+        
+};
+
+// ==================================
+class cDxr3SyncBuffer : public cRingBuffer 
+{
+public:
+    enum eSyncBufferException 
+	{
+        SYNC_BUFFER_OVERRUN
+    };    
+public:
+    cDxr3SyncBuffer(int frameCount, int frameLength, cDxr3Interface& dxr3Device);
+    ~cDxr3SyncBuffer();        
+
+    virtual int Available(void);
+    cFixedLengthFrame* Push(const uint8_t* pStart, int length, uint32_t pts, eFrameType type = ftUnknown) throw (eSyncBufferException);
+    void Pop(void);
+    cFixedLengthFrame* Get(void); 
+    void Clear(void);
+    void Stop(void) { m_bStopped = true;};
+    void Start(void);
+    void WaitForSysClock(uint32_t pts, uint32_t delta);
+    void WaitForNextPut(void);
+    void WakeUp(void);
+    void WaitForReceiverStopped(void);
+    void SetDemuxMode(eDxr3DemuxMode demuxMode) {m_demuxMode = demuxMode;};
+    eDxr3DemuxMode GetDemuxMode(void) {return m_demuxMode;};
+    bool Poll(int TimeoutMs);
+    bool IsPolled(void) { return m_bPollSync;};
+    uint32_t GetFillLevel(void) { return Available() * 100 / Size();};
+
+protected:
+    void ReceiverStopped(void);
+    
+    cFixedLengthFrame* m_pBuffer;
+    int m_count;
+    int m_nextFree;
+    int m_next;
+    bool m_bWaitPts;
+    bool m_bPutBlock;
+    bool m_bGetBlock;
+    bool m_bStartReceiver;
+    bool m_bStopped;
+    uint32_t m_waitPts;
+    uint32_t m_waitDelta;
+    uint32_t m_lastPts;
+    eDxr3DemuxMode m_demuxMode;
+
+    cCondVar receiverStopped;
+    cMutex receiverStoppedMutex;
+    cDxr3Interface& m_dxr3Device;
+    bool m_bPollSync;
+    
+private:
+    cDxr3SyncBuffer(); // you are not allowed to use this constructor
+    cDxr3SyncBuffer(cDxr3SyncBuffer&); // no constructor
+};
+
+#endif /*_DXR3SYNCBUFFER_H_*/