#include?
#include?
#include?
#include?
#include?
#include?
#include?

/*
?*?This?is?a?private?message?structure.?A?generic?pointer?to?this?structure
?*?is?passed?to?each?of?the?callback?functions.?Put?here?any?data?you?need
?*?to?access?from?within?the?callbacks.
?*/
struct?PcmFmtParams
{
????snd_pcm_access_t?eAccessMod;
????unsigned?int?eFmtMod;
????unsigned?int?dwSampRate;
????unsigned?int?dwChannels;
????unsigned?char?const?*pucDataStart;
????unsigned?long?dwDataLength;
};

struct?IDxVxHeader
{
????unsigned?char?aucIDx[3];?????/*?保存的值比如為“ID3“表示是ID3V2?*/
????unsigned?char?ucVersion;?????/*?如果是ID3V2.3則保存3如果是ID3V2.4則保存4?*/
????unsigned?char?ucRevision;????/*?副版本號?*/
????unsigned?char?ucFlag;????????/*?存放標(biāo)志的字節(jié)?*/
????unsigned?char?aucIDxSize[4];?/*?整個?IDxVx?的大小，除去本結(jié)構(gòu)體的?10?個字節(jié)?*/
????/*?只有后面?7?位有用?*/
};

struct?DataframeHeader
{
	unsigned?int?bzframeSyncFlag1:8;???/*?全為?1?*/
	unsigned?int?bzProtectBit:1;???????/*?CRC?*/
	unsigned?int?bzVersionInfo:4;??????/*?包括?mpeg?版本，layer?版本?*/
	unsigned?int?bzframeSyncFlag2:3;???/*?全為?1?*/
	unsigned?int?bzPrivateBit:1;???????/*?私有?*/
	unsigned?int?bzPaddingBit:1;??????/*?是否填充，1?填充，0?不填充
	layer1?是?4?字節(jié)，其余的都是?1?字節(jié)?*/
	unsigned?int?bzSampleIndex:2;?????/*?采樣率索引?*/
	unsigned?int?bzBitRateIndex:4;????/*?bit?率索引?*/
	unsigned?int?bzExternBits:6;??????/*?版權(quán)等，不關(guān)心?*/	
	unsigned?int?bzCahnnelMod:2;??????/*?通道
	*?00?-?Stereo?01?-?Joint?Stereo
	*?10?-?Dual???11?-?Single
	*/
};

#define?DebugPrintf?printf

static?snd_pcm_t?*g_ptPlaybackHandle;
static?struct?PcmFmtParams?g_tMp3PcmFmtParams;

static?int?g_aiMP3BitRateIndex[]?=?{
	0?32?40?48?56?64?80?96?112?128?160?192?224?256?320?0
};
static?int?g_aiMP3SampleRateIndex[]?=?{
	44100?48000?32000?0
};

static?int?decode（unsigned?char?const?*?unsigned?long）;
static?int?SetMp3OutPcmFmt（void）;
static?snd_pcm_t?*OpenPcmDev（char?*strDevName?snd_pcm_stream_t?eSndPcmStream）;
static?int?SetHarwareParams（snd_pcm_t?*ptPcmHandle?struct?PcmFmtParams?*ptPcmHWParams）;
static?int?SkipIDxVxContents（struct?IDxVxHeader?*ptIDxVxHeader）;
static?int?GetPlayTimeForFile（unsigned?char?*ptDataframeIndex?int?iFileSize）;

int?main（int?argc?char?*argv[]）
{
????unsigned?char?*pucFd;
????int?iMp3Fd;
????int?iError?=?0;
????struct?stat?tMp3FileStat;
	struct?IDxVxHeader?*ptIDxVxHeader;
	int?iSkipSize?=?0;
	int?iRealPcmDataSize?=?0;
	int?iPlayTime?=?0;
??
????if?（argc?!=?2）{
??	??DebugPrintf（“Usage?\n“）;
??	??DebugPrintf（“wav?\n“）;
??	??return?-1;	
????}

????iError?=?SetMp3OutPcmFmt（）;
	if（iError）{
		DebugPrintf（“SetMp3OutPcmFmt?error\n“）;
		return?-1;	?????
	}

????iMp3Fd?=?open（argv[1]?O_RDONLY）;
????if（iMp3Fd???	??DebugPrintf（“Can‘t?open?file?%s\n“?argv[1]）;
??	??return?-1;
????}
??
????iError?=?fstat（iMp3Fd?&tMp3FileStat）;
????if（iError）{
??	??close（iMp3Fd）;
??	??DebugPrintf（“Can‘t?get?file?%s?stat\n“?argv[1]）;
??	??return?-1;
????}
??
????/*?映射數(shù)據(jù)?*/
????pucFd?=?mmap（0?tMp3FileStat.s

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????2196??2016-08-07?19:39??項目打包\alsa-sound\wav.c
?????文件???????13962??2016-08-10?22:29??項目打包\alsa-sound\minimad.c
?????文件????????9959??2016-08-09?19:45??項目打包\alsa-sound\miniplay.c
?????目錄???????????0??2016-08-12?09:26??項目打包\alsa-sound\
?????目錄???????????0??2016-08-12?09:24??項目打包\
?????目錄???????????0??2016-08-12?09:24??項目打包\USB\
?????文件?????????200??2016-03-07?01:41??項目打包\USB\Makefile
?????文件???????????0??2016-08-01?17:15??項目打包\USB\Module.symvers
?????文件????????3310??2016-08-01?17:29??項目打包\USB\usb.c
?????文件???????85610??2016-03-08?23:02??項目打包\USB\usb.ko
?????文件?????????456??2016-03-08?22:24??項目打包\USB\usb.mod.c
?????文件???????11152??2016-03-08?22:24??項目打包\USB\usb.mod.o
?????文件???????75376??2016-03-08?23:02??項目打包\USB\usb.o
?????目錄???????????0??2016-08-12?09:21??項目打包\digital_book\
?????文件??????267616??2016-07-17?19:47??項目打包\digital_book\HZK16
?????文件????????1113??2016-07-21?20:48??項目打包\digital_book\Makefile
?????文件?????????666??2016-07-18?09:33??項目打包\digital_book\Makefile.build
?????文件??????397302??2016-07-19?09:28??項目打包\digital_book\TB-ansi.txt
?????文件??????409316??2016-07-18?16:26??項目打包\digital_book\TB-utf16be.txt
?????文件??????409316??2016-07-18?16:26??項目打包\digital_book\TB-utf16le.txt
?????文件??????589899??2016-07-18?16:26??項目打包\digital_book\TB-utf8.txt
?????文件??????397302??2012-02-09?11:20??項目打包\digital_book\TB.txt
?????目錄???????????0??2016-08-12?09:21??項目打包\digital_book\display\
?????文件??????????37??2016-07-16?21:01??項目打包\digital_book\display\Makefile
?????文件?????????957??2016-07-17?19:56??項目打包\digital_book\display\dis_manag.c
?????文件????????4194??2016-07-22?17:57??項目打包\digital_book\display\fb.c
?????目錄???????????0??2016-08-12?09:21??項目打包\digital_book\draw\
?????文件??????????15??2016-07-18?10:17??項目打包\digital_book\draw\Makefile
?????文件???????11120??2016-07-22?18:15??項目打包\digital_book\draw\draw.c
?????文件?????????404??2016-07-16?22:20??項目打包\digital_book\draw_line_test.c
?????目錄???????????0??2016-08-12?09:21??項目打包\digital_book\encoding\
............此處省略1459個文件信息