/*ringbuf?.c*/

#include
#include
#include?“ringfifo.h“
#define?NMAX?32

int?iput?=?0;?/*?環(huán)形緩沖區(qū)的當(dāng)前放入位置?*/

int?iget?=?0;?/*?緩沖區(qū)的當(dāng)前取出位置?*/

int?n?=?0;?/*?環(huán)形緩沖區(qū)中的元素總數(shù)量?*/

struct?ringbuf?ringfifo[NMAX];

/*?環(huán)形緩沖區(qū)的地址編號(hào)計(jì)算函數(shù)，如果到達(dá)喚醒緩沖區(qū)的尾部，將繞回到頭部。

環(huán)形緩沖區(qū)的有效地址編號(hào)為：0到（NMAX-1）

*/
void?ringmalloc（int?size）
{
	int?i;
	for?（i?=0;i	{
		ringfifo[i].buffer?=?malloc?（size）;
		ringfifo[i].size?=?0;
		ringfifo[i].frame_type?=?0;
		printf（“FIFO?INFO:idx:%dlen:%dptr:%x\n“iringfifo[i].size（int）（ringfifo[i].buffer））;
	}
	int?iput?=?0;?/*?環(huán)形緩沖區(qū)的當(dāng)前放入位置?*/

	int?iget?=?0;?/*?緩沖區(qū)的當(dāng)前取出位置?*/

	int?n?=?0;?/*?環(huán)形緩沖區(qū)中的元素總數(shù)量?*/
}
void?ringreset（）
{
	int?iput?=?0;?/*?環(huán)形緩沖區(qū)的當(dāng)前放入位置?*/

	int?iget?=?0;?/*?緩沖區(qū)的當(dāng)前取出位置?*/

	int?n?=?0;?/*?環(huán)形緩沖區(qū)中的元素總數(shù)量?*/
}
void?ringfree（）
{
	int?i;
	printf（“begin?free?mem\n“）;
	for?（i?=0;i	{
		printf（“FREE?FIFO?INFO:idx:%dlen:%dptr:%x\n“iringfifo[i].size（int）（ringfifo[i].buffer））;
		free（ringfifo[i].buffer）;
		ringfifo[i].size?=?0;
	}
}
int?addring?（int?i）
{
????????return?（i+1）?==?NMAX???0?:?i+1;
}

/*?從環(huán)形緩沖區(qū)中取一個(gè)元素?*/

int?ringget（struct?ringbuf?*getinfo）
{
	int?Pos;
	if?（n>0）{
??????????????????????Pos?=?iget;
??????????????????????iget?=?addring（iget）;
??????????????????????n--;
					??getinfo->buffer?=?（int）（ringfifo[Pos].buffer）;
					??getinfo->frame_type?=?ringfifo[Pos].frame_type;
					??getinfo->size?=?ringfifo[Pos].size;
					??//printf（“Get?FIFO?INFO:idx:%dlen:%dptr:%xtype:%d\n“Posgetinfo->size（int）（getinfo->buffer）getinfo->frame_type）;
??????????????????????return?ringfifo[Pos].size;
			}
	else?{
		//printf（“Buffer?is?empty\n“）;
		return?0;
	}
}

?

/*?向環(huán)形緩沖區(qū)中放入一個(gè)元素*/

void?ringput（unsigned?char?*bufferint?sizeint?encode_type）
{
int?dest;
if?（n??????????????????????dest?=memcpy（ringfifo[iput].bufferbuffersize）;
					??ringfifo[iput].size=?size;
					??ringfifo[iput].frame_type?=?encode_type;
					??//printf（“Put?FIFO?INFO:idx:%dlen:%dptr:%xtype:%d\n“iputringfifo[iput].size（int）（ringfifo[iput].buffer）ringfifo[iput].frame_type）;
??????????????????????iput?=?addring（iput）;
??????????????????????n++;
}
else?
{
	//	printf（“Buffer?is?full\n“）;
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-10-14?20:38??a10-rtsph264\
?????目錄???????????0??2013-10-14?20:38??a10-rtsph264\h264\
?????文件????????4618??2013-10-14?20:38??a10-rtsph264\h264\camera.c
?????文件????????6228??2013-10-14?20:38??a10-rtsph264\h264\camera.o
?????文件???????25116??2013-10-14?20:38??a10-rtsph264\h264\drv_display.h
?????文件????????4897??2013-10-14?20:38??a10-rtsph264\h264\encoder.c
?????文件????????5652??2013-10-14?20:38??a10-rtsph264\h264\encoder.o
?????文件????????2213??2013-10-14?20:38??a10-rtsph264\h264\enc_type.h
?????文件????????8959??2013-10-14?20:38??a10-rtsph264\h264\font_data.h
?????文件??????643732??2013-10-14?20:38??a10-rtsph264\h264\libv4lconvert.a
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?????目錄???????????0??2013-10-14?20:38??a10-rtsph264\h264\linux_lib\
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?????文件???????14956??2013-10-14?20:38??a10-rtsph264\h264\linux_lib\libcedarv.h
?????文件????????8044??2013-10-14?20:38??a10-rtsph264\h264\linux_lib\libcedarv_osal.a
?????文件???????10468??2013-10-14?20:38??a10-rtsph264\h264\linux_lib\libcedarxalloc.a
?????文件???????47026??2013-10-14?20:38??a10-rtsph264\h264\linux_lib\libh264enc.a
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?????文件??????????59??2013-10-14?20:38??a10-rtsph264\h264\log.h
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?????文件???????13363??2013-10-14?20:38??a10-rtsph264\h264\matroska_ebml.c
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?????文件???????10368??2013-10-14?20:38??a10-rtsph264\h264\matroska_ebml.o
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?????文件????????4551??2013-10-14?20:38??a10-rtsph264\h264\preview.c
?????文件????????5644??2013-10-14?20:38??a10-rtsph264\h264\preview.o
............此處省略18個(gè)文件信息