Diff: VS1053.h

Revision:

6:eed008905159

Parent:

5:ead95c0f7800

Child:

7:b6853a2c88c2

--- a/VS1053.h	Sat Dec 25 00:29:04 2010 +0000
+++ b/VS1053.h	Sat Jan 08 15:45:58 2011 +0000
@@ -67,14 +67,14 @@
 #define DEFAULT_TREBLE_AMPLITUDE                      0        //  -8 -     7 dB
 #define DEFAULT_TREBLE_FREQUENCY                  15000        //1000 - 15000 Hz
 
-#define BUFFER_SIZE                       (16 * 1024 + 1)
+#define BUFFER_SIZE                       (20 * 1024 + 1)
 
 // SCI register address assignment
 #define SCI_MODE                                    0x00
 #define SCI_STATUS                                  0x01
 #define SCI_BASS                                    0x02
 #define SCI_CLOCKF                                  0x03
-#define SCI_DECODE_TOME                             0x04
+#define SCI_DECODE_TIME                             0x04
 #define SCI_AUDATA                                  0x05
 #define SCI_WRAM                                    0x06
 #define SCI_WRAMADDR                                0x07
@@ -136,6 +136,69 @@
 #define INTERRUPT_HANDLER_ENABLE                    _DREQ_INTERUPT_IN.rise(this, &VS1053::dataRequestHandler); timer.attach_us(this, &VS1053::dataRequestHandler, 1000)
 #define INTERRUPT_HANDLER_DISABLE                   _DREQ_INTERUPT_IN.rise(NULL); timer.detach()  
 
+
+
+typedef enum AudioType 
+{
+    WAV,
+    AAC,
+    WMA,
+    MIDI,
+    OGG_VORBIS,
+    MP3,
+    UNKNOWN
+} AudioType;
+
+typedef enum MP3_ID
+{
+    MPG2_5a  = 0,
+    MPG2_5b  = 1,
+    MPG2_0   = 2,
+    MPG1_0   = 3    
+} MP3_ID;
+
+typedef enum MP3_MODE
+{
+    STEREO       = 0,
+    JOINT_STEREO = 1,
+    DUAL_CHANNEL = 2,
+    MONO         = 3
+} MP3_MODE;
+
+/** Struct for informations about audio streams.
+ *
+ */
+typedef struct AudioInfo
+{
+   AudioType            type            : 4;  
+   unsigned short       kBitRate;
+   unsigned short       decodeTime;
+   union {
+        struct {
+            MP3_ID      id              : 2;
+            char        layer           : 2;
+            char        protrectBit     : 1;
+            char        padBit          : 1;
+            MP3_MODE    mode            : 2;
+            char        extension       : 2;
+            char        copyright       : 1;
+            char        original        : 1;
+            char        emphasis        : 2;
+            char        kSampleRate     : 6;
+        } mp3;
+        struct {
+        
+        } wma;
+        struct {
+        
+        } aac;
+        struct {
+        
+        } other;   
+   } ext;
+   
+} AudioInfo;
+
 /** Class for VS1053 - Ogg Vorbis / MP3 / AAC / WMA / FLAC / MIDI Audio Codec Chip.
  *
  * This code based on:
@@ -362,6 +425,14 @@
      *      
      */        
     void stop(void);
+    
+     /** Get information about played audio stream.
+     * 
+     * @param aInfo
+     *   Return value for the informations.
+     *     
+     */    
+    void getAudioInfo(AudioInfo* aInfo);
 
 protected:
     unsigned short int wram_read(unsigned short int);
@@ -424,6 +495,8 @@
     
     Ticker timer;        
     
+    static const char               _sampleRateTable[4][4];                  // _sampleRateTable[id][srate]
+    
 };
 
 #endif