Initial community commit

Src/Plugins/Input/in_mp3/LAMEinfo.h

@@ -0,0 +1,118 @@
+#ifndef NULLSOFT_LAMEINFOH
+#define NULLSOFT_LAMEINFOH
+
+
+#define FRAMES_FLAG     0x0001
+#define BYTES_FLAG      0x0002
+#define TOC_FLAG        0x0004
+#define VBR_SCALE_FLAG  0x0008
+
+#define FRAMES_AND_BYTES (FRAMES_FLAG | BYTES_FLAG)
+#include <memory.h>
+#pragma intrinsic(memset)
+struct LAMEinfo
+{
+	LAMEinfo() 
+	{
+		memset(this, 0, sizeof(LAMEinfo));
+	}
+
+	int cbr; // set to 1 if the file is actually just CBR
+	// Xing
+	int h_id;
+	int samprate;   // determined from MPEG header
+    int flags;      // from Xing header data
+    int frames;     // total bit stream frames from Xing header data
+    int bytes;      // total bit stream bytes from Xing header data
+    int vbr_scale;  // encoded vbr scale from Xing header data
+    unsigned char *toc;  // pointer to unsigned char toc_buffer[100]
+                         // may be NULL if toc not desired
+
+		// LAME
+	char lameTag[10]; // 9 characters, but we'll add an extra NULL just in case
+	float peak;
+	float replaygain_album_gain;
+	float replaygain_track_gain;
+	unsigned short lowpass;
+	unsigned short encoderDelay;
+	unsigned short padding;
+	int encodingMethod;
+};
+
+enum
+{
+	ENCODING_METHOD_LAME = 0,
+	ENCODING_METHOD_CBR = 1,
+	ENCODING_METHOD_ABR = 2,
+	ENCODING_METHOD_VBR1 = 3,
+	ENCODING_METHOD_VBR2 = 4,
+	ENCODING_METHOD_VBR3 = 5,
+	ENCODING_METHOD_VBR4 = 6,
+	ENCODING_METHOD_CBR_2PASS = 8,
+	ENCODING_METHOD_ABR_2PASS = 9,
+};
+
+int ReadLAMEinfo(unsigned char *buffer, LAMEinfo *lameInfo);
+
+class MPEGFrame
+{
+public:
+	int GetNumChannels();
+
+	void ReadBuffer(const unsigned char *buffer);
+	bool IsSync();
+	int GetBitrate();
+	int GetPadding();
+	int HeaderSize();
+	int GetSampleRate() const;
+	int FrameSize();
+	const char *GetMPEGVersionString();
+	const char *GetChannelModeString();
+	const char *GetEmphasisString();
+	int GetLayer();
+	bool IsCRC();
+	bool IsCopyright();
+	bool IsOriginal();
+	int MPEGFrame::GetSamplesPerFrame() const;
+	
+	enum
+	{
+		NotPadded=0,
+		Padded=1,
+		CRC = 0,
+		NoProtection = 1,
+		Stereo = 0,
+		JointStereo = 1,
+		DualChannel = 2,
+		Mono = 3,
+		MPEG1 = 3,
+		MPEG2 = 2,
+    MPEG_Error = 1,
+		MPEG2_5 = 0,
+		Layer1 = 3,
+		Layer2 = 2,
+		Layer3 = 1,
+    LayerError = 0,
+		Emphasis_None = 0,
+		Emphasis_50_15_ms = 1,
+		Emphasis_reserved = 2,
+		Emphasis_CCIT_J_17 = 3,
+	};
+
+	unsigned int sync:11, 
+mpegVersion:2, 
+layer:2, 
+protection:1,
+bitrateIndex:4, 
+paddingBit:1,
+privateBit:1, 
+channelMode:2, 
+modeExtension:2, 
+sampleRateIndex:2, 
+copyright:1, 
+original:1, 
+emphasis:2;
+};
+
+
+#endif