chore: migrate project into clean repository

arcs-sdk/modules/mp3dec/CMakeLists.txt

@@ -0,0 +1,9 @@
+if (DEFINED CONFIG_SDK_MODULE_MP3_DECODER)
+listenai_link_libraries(
+  ${CMAKE_CURRENT_SOURCE_DIR}/libmp3dec.a
+)
+
+listenai_include_directories(
+  ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+endif()

arcs-sdk/modules/mp3dec/Kconfig

@@ -0,0 +1,7 @@
+menu "mp3dec"
+
+config SDK_MODULE_MP3_DECODER
+    bool "Enable mp3dec"
+    default n
+
+endmenu

arcs-sdk/modules/mp3dec/include/mp3dec.h

@@ -0,0 +1,105 @@
+/* 
+ * http://www.helixcommunity.org
+ */ 
+
+/**************************************************************************************
+ * Fixed-point MP3 decoder
+ *
+ * mp3dec.h - public C API for MP3 decoder
+ **************************************************************************************/
+
+#ifndef __LISTENAI_MP3DEC_H__
+#define __LISTENAI_MP3DEC_H__
+
+#if defined(_WIN32) && !defined(_WIN32_WCE)
+#
+#elif defined(_WIN32) && defined(_WIN32_WCE) && defined(ARM)
+#
+#elif defined(_WIN32) && defined(WINCE_EMULATOR)
+#
+#elif defined(ARM_ADS)
+#
+#elif defined(_SYMBIAN) && defined(__WINS__)	/* Symbian emulator for Ix86 */
+#
+#elif defined(__GNUC__) && defined(ARM)
+#
+#elif defined(__GNUC__) && defined(__arm__)
+#
+#elif defined(__GNUC__) && defined(__i386__)
+#
+#elif defined(_OPENWAVE_SIMULATOR) || defined(_OPENWAVE_ARMULATOR)
+#
+#elif defined(__linux__)
+#
+#elif defined(__riscv) || defined(__riscv__)
+#
+#else
+#error No platform defined. See valid options in mp3dec.h
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* determining MAINBUF_SIZE:
+ *   max mainDataBegin = (2^9 - 1) bytes (since 9-bit offset) = 511
+ *   max nSlots (concatenated with mainDataBegin bytes from before) = 1440 - 9 - 4 + 1 = 1428
+ *   511 + 1428 = 1939, round up to 1940 (4-byte align)
+ */
+#define MAINBUF_SIZE	1940
+
+#define MAX_NGRAN		2		/* max granules */
+#define MAX_NCHAN		2		/* max channels */
+#define MAX_NSAMP		576		/* max samples per channel, per granule */
+
+/* map to 0,1,2 to make table indexing easier */
+typedef enum {
+	MPEG1 =  0,
+	MPEG2 =  1,
+	MPEG25 = 2
+} MPEGVersion;
+
+typedef void *HMP3Decoder;
+
+enum {
+	ERR_MP3_NONE =                  0,
+	ERR_MP3_INDATA_UNDERFLOW =     -1,
+	ERR_MP3_MAINDATA_UNDERFLOW =   -2,
+	ERR_MP3_FREE_BITRATE_SYNC =    -3,
+	ERR_MP3_OUT_OF_MEMORY =	       -4,
+	ERR_MP3_NULL_POINTER =         -5,
+	ERR_MP3_INVALID_FRAMEHEADER =  -6,
+	ERR_MP3_INVALID_SIDEINFO =     -7,
+	ERR_MP3_INVALID_SCALEFACT =    -8,
+	ERR_MP3_INVALID_HUFFCODES =    -9,
+	ERR_MP3_INVALID_DEQUANTIZE =   -10,
+	ERR_MP3_INVALID_IMDCT =        -11,
+	ERR_MP3_INVALID_SUBBAND =      -12,
+
+	ERR_UNKNOWN =                  -9999
+};
+
+typedef struct _MP3FrameInfo {
+	int bitrate;
+	int nChans;
+	int samprate;
+	int bitsPerSample;
+	int outputSamps;
+	int layer;
+	int version;
+} MP3FrameInfo;
+
+/* public API */
+HMP3Decoder MP3InitDecoder(void);
+void MP3FreeDecoder(HMP3Decoder hMP3Decoder);
+int MP3Decode(HMP3Decoder hMP3Decoder, unsigned char **inbuf, int *bytesLeft, short *outbuf, int useSize);
+
+void MP3GetLastFrameInfo(HMP3Decoder hMP3Decoder, MP3FrameInfo *mp3FrameInfo);
+int MP3GetNextFrameInfo(HMP3Decoder hMP3Decoder, MP3FrameInfo *mp3FrameInfo, unsigned char *buf);
+int MP3FindSyncWord(unsigned char *buf, int nBytes);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif