add oversampler

oversampling/WDL/scsrc.h

@@ -0,0 +1,115 @@
+/*
+  WDL - scsrc.h
+  Copyright (C) 2007, Cockos Incorporated
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+  
+
+  This file provides for an object to source a SHOUTcast (www.shoutcast.com) stream.
+  It uses the lameencdec.h interface (and lame_enc.dll) to encode, and JNetLib to send the data.
+
+
+  This object will not auto-reconnect on disconnect. If GetStatus() returns error, the callee needs to 
+  delete the object and create a new one.
+
+
+*/
+
+
+#ifndef _WDL_SCSRC_H_
+#define _WDL_SCSRC_H_
+
+#include <time.h>
+#include "jnetlib/connection.h"
+#include "jnetlib/httpget.h"
+#include "lameencdec.h"
+#include "wdlstring.h"
+#include "fastqueue.h"
+#include "queue.h"
+#include "mutex.h"
+
+#include "resample.h"
+
+
+class WDL_ShoutcastSource
+{
+public:
+  WDL_ShoutcastSource(const char *host, const char *pass, const char *name, bool pub=false, 
+                      const char *genre=NULL, const char *url=NULL,
+                      
+                      int nch=2, int srate=44100, int kbps=128,
+                      const char *ircchan=NULL
+                      );
+  ~WDL_ShoutcastSource();
+
+  int GetStatus(); // returns 0 if connected/connecting, >0 if disconnected, -1 if failed connect (or other error) from the start
+  void GetStatusText(char *buf, int bufsz); // gets status text
+
+  void SetCurTitle(const char *title);
+
+  int GetSampleRate() { return m_srate; }
+  void OnSamples(float **samples, int nch, int chspread, int frames, double srate); 
+  int RunStuff(); // returns nonzero if work done
+  
+
+  void *userData;
+  int totalBitrate; // 0 for normal, otherwise if using NSV (below) set to kbps of total stream
+  // allows hooking to say, I dunno, package in some other format such as NSV?
+  void (*sendProcessor)(void *userData, WDL_Queue *dataout, WDL_Queue *data); 
+
+  int GetAudioBitrate() { return m_br*1000; }
+
+private:
+
+  WDL_Queue m_procdata;
+
+  LameEncoder *m_encoder;
+  int m_encoder_splsin;
+
+  WDL_String m_host,m_pass,m_url,m_genre,m_name,m_ircchan;
+  int m_br;
+  bool m_pub;
+
+  time_t m_titlecon_start,m_sendcon_start;
+
+  unsigned int m_bytesout;
+  int m_state;
+  int m_nch,m_srate;
+
+  WDL_Resampler m_rs;
+  WDL_FastQueue m_samplequeue; // interleaved samples (float)
+
+  JNL_HTTPGet *m_titlecon;
+  JNL_Connection *m_sendcon;
+
+  WDL_TypedBuf<float> m_workbuf;
+  WDL_Mutex m_samplemutex;
+  WDL_Mutex m_titlemutex;
+  char m_title[512];
+  bool m_needtitle;
+
+
+  bool m_is_postmode;
+  unsigned int m_postmode_session;
+  int m_post_bytesleft;
+  int m_post_postsleft;
+
+  void PostModeConnect();
+
+};
+
+#endif // _WDL_SCSRC_H_