#include?“avi.h“
#include?“usart.h“???

AVI_INFO?avix;					//avi文件相關信息?
u8*const?AVI_VIDS_FLAG_TBL[2]={“00dc““01dc“};//視頻編碼標志字符串00dc/01dc
u8*const?AVI_AUDS_FLAG_TBL[2]={“00wb““01wb“};//音頻編碼標志字符串00wb/01wb

//avi解碼初始化
//buf:輸入緩沖區
//size:緩沖區大小
//返回值:AVI_OKavi文件解析成功
//?????????其他錯誤代碼
AVISTATUS?avi_init（u8?*bufu16?size）		?
{
	u16?offset;
	u8?*tbuf;
	AVISTATUS?res=AVI_OK;
	AVI_HEADER?*aviheader;
	LIST_HEADER?*listheader;
	AVIH_HEADER?*avihheader;?
	STRH_HEADER?*strhheader;?
	
	STRF_BMPHEADER?*bmpheader;?
	STRF_WAVHEADER?*wavheader;?
	
	tbuf=buf;
	aviheader=（AVI_HEADER*）buf;?
	if（aviheader->RiffID!=AVI_RIFF_ID）return?AVI_RIFF_ERR;		//RIFF?ID錯誤
	if（aviheader->AviID!=AVI_AVI_ID）return?AVI_AVI_ERR;			//AVI?ID錯誤
	buf+=sizeof（AVI_HEADER）;									//偏移
	listheader=（LIST_HEADER*）（buf）;						
	if（listheader->ListID!=AVI_LIST_ID）return?AVI_LIST_ERR;		//LIST?ID錯誤?
	if（listheader->ListType!=AVI_HDRL_ID）return?AVI_HDRL_ERR;	//HDRL?ID錯誤?
	buf+=sizeof（LIST_HEADER）;									//偏移
	avihheader=（AVIH_HEADER*）（buf）;
	if（avihheader->BlockID!=AVI_AVIH_ID）return?AVI_AVIH_ERR;	//AVIH?ID錯誤?
	avix.SecPerframe=avihheader->SecPerframe;					//得到幀間隔時間
	avix.Totalframe=avihheader->Totalframe;						//得到總幀數??
	buf+=avihheader->BlockSize+8;								//偏移
	listheader=（LIST_HEADER*）（buf）;
	if（listheader->ListID!=AVI_LIST_ID）return?AVI_LIST_ERR;		//LIST?ID錯誤?
	if（listheader->ListType!=AVI_STRL_ID）return?AVI_STRL_ERR;	//STRL?ID錯誤??
	strhheader=（STRH_HEADER*）（buf+12）;
	if（strhheader->BlockID!=AVI_STRH_ID）return?AVI_STRH_ERR;	//STRH?ID錯誤?
?	if（strhheader->StreamType==AVI_VIDS_STREAM）					//視頻幀在前
	{
		if（strhheader->Handler!=AVI_FORMAT_MJPG）return?AVI_FORMAT_ERR;	//非MJPG視頻流不支持
		avix.VideoFLAG=（u8*）AVI_VIDS_FLAG_TBL[0];					//視頻流標記??“00dc“
		avix.AudioFLAG=（u8*）AVI_AUDS_FLAG_TBL[1];					//音頻流標記??“01wb“
		bmpheader=（STRF_BMPHEADER*）（buf+12+strhheader->BlockSize+8）;//strf
		if（bmpheader->BlockID!=AVI_STRF_ID）return?AVI_STRF_ERR;		//STRF?ID錯誤??
		avix.Width=bmpheader->bmiHeader.Width;
		avix.Height=bmpheader->bmiHeader.Height;?
		buf+=listheader->BlockSize+8;								//偏移
		listheader=（LIST_HEADER*）（buf）;
		if（listheader->ListID!=AVI_LIST_ID）//是不含有音頻幀的視頻文件
		{
			avix.SampleRate=0;						//音頻采樣率
			avix.Channels=0;						//音頻通道數
			avix.AudioType=0;						//音頻格式
			
		}else
		{			
			if（listheader->ListType!=AVI_STRL_ID）return?AVI_STRL_ERR;	//STRL?ID錯誤???
			strhheader=（STRH_HEADER*）（buf+12）;
			if（strhheader->BlockID!=AVI_STRH_ID）return?AVI_STRH_ERR;	//STRH?ID錯誤?
			if（strhheader->StreamType!=AVI_AUDS_STREAM）return?AVI_FORMAT_ERR;//格式錯誤
			wavheader=（STRF_WAVHEADER*）（buf+12+strhheader->BlockSize+8）;//strf
			if（wavheader->BlockID!=AVI_STRF_ID）return?AVI_STRF_ERR;		//STRF?ID錯誤???
			avix.SampleRate=wavheader->SampleRate;						//音頻采樣率
			avix.Channels=wavheader->Channels;							//音頻通道數
			avix.AudioType=wavheader->FormatTag;						//音頻格式
		}
	}else?if（strhheader->StreamType==AVI_AUDS_STREAM）		?		//音頻幀在前
	{?
		avix.VideoFLA

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????6104??2018-04-04?11:49??USB_UVC_AVI\APP\avi.c

?????文件???????6702??2018-04-04?13:27??USB_UVC_AVI\APP\avi.h

?????文件??????24423??2016-01-30?00:54??USB_UVC_AVI\CORE\cmsis_armcc.h

?????文件?????114498??2016-01-30?00:54??USB_UVC_AVI\CORE\core_cm4.h

?????文件???????3620??2016-01-30?00:54??USB_UVC_AVI\CORE\core_cmFunc.h

?????文件???????3636??2016-01-30?00:54??USB_UVC_AVI\CORE\core_cmInstr.h

?????文件???????3662??2016-01-30?00:54??USB_UVC_AVI\CORE\core_cmSimd.h

?????文件??????31702??2016-01-30?00:56??USB_UVC_AVI\CORE\startup_stm32f429xx.s

?????文件??????18133??2018-03-23?13:37??USB_UVC_AVI\DRIVER\ftl.c

?????文件???????1678??2018-03-23?13:07??USB_UVC_AVI\DRIVER\ftl.h

?????文件???????2966??2018-03-20?14:36??USB_UVC_AVI\DRIVER\KEY.c

?????文件???????1227??2018-03-20?13:54??USB_UVC_AVI\DRIVER\KEY.h

?????文件????????317??2018-03-15?11:58??USB_UVC_AVI\DRIVER\led.c

?????文件????????109??2018-03-15?11:47??USB_UVC_AVI\DRIVER\led.h

?????文件??????24910??2018-03-23?13:06??USB_UVC_AVI\DRIVER\nand.c

?????文件???????3323??2018-03-23?13:06??USB_UVC_AVI\DRIVER\nand.h

?????文件???????6325??2018-03-20?08:45??USB_UVC_AVI\DRIVER\sdram.c

?????文件???????1049??2018-03-20?08:45??USB_UVC_AVI\DRIVER\sdram.h

?????文件???????2388??2018-04-04?14:25??USB_UVC_AVI\DRIVER\timer.c

?????文件????????285??2018-04-04?14:25??USB_UVC_AVI\DRIVER\timer.h

?????文件???????5091??2018-03-22?13:40??USB_UVC_AVI\DRIVER\usart.c

?????文件????????591??2018-03-21?16:57??USB_UVC_AVI\DRIVER\usart.h

?????文件??????13537??2018-03-20?13:05??USB_UVC_AVI\DRIVER\w25qxx.c

?????文件???????2233??2018-03-20?10:02??USB_UVC_AVI\DRIVER\w25qxx.h

?????文件?????724722??2017-08-18?15:43??USB_UVC_AVI\Fatfs\cc936.c

?????文件???????7708??2018-03-29?09:42??USB_UVC_AVI\Fatfs\diskio.c

?????文件???????2707??2016-04-12?21:25??USB_UVC_AVI\Fatfs\diskio.h

?????文件?????193221??2017-08-31?11:04??USB_UVC_AVI\Fatfs\ff.c

?????文件??????13815??2017-08-31?11:04??USB_UVC_AVI\Fatfs\ff.h

?????文件??????10674??2018-03-29?09:46??USB_UVC_AVI\Fatfs\ffconf.h

............此處省略213個文件信息