#include?“PSAnalysis.h“
#include?



PSBuild::PSBuild（）?:?rtp_seq_（0）
{

}

PSBuild::~PSBuild（）
{

}

?/***
?*@remark:???ps頭的封裝里面的具體數據的填寫已經占位，可以參考標準
?*@param?:???pData??[in]?填充ps頭數據的地址
?*???????????s64Src?[in]?時間戳
?*@return:???0?success?others?failed
*/
int?PSBuild::MakePsHeader（char?*pData?unsigned?long?long?s64Scr）
{
	unsigned?long?long?lScrExt?=?（s64Scr）?%?100;	
????s64Scr?=?s64Scr?/?100;
????//?這里除以100是由于sdp協議返回的video的頻率是90000，幀率是25幀/s，所以每次遞增的量是3600
????//?所以實際你應該根據你自己編碼里的時間戳來處理以保證時間戳的增量為3600即可，
????//如果這里不對的話，就可能導致卡頓現象了
	bits_buffer_s??	bitsBuffer;
	bitsBuffer.i_size?=?PS_HDR_LEN;	
	bitsBuffer.i_data?=?0;
????bitsBuffer.i_mask?=?0x80;?//?二進制：10000000?這里是為了后面對一個字節的每一位進行操作，避免大小端夸字節字序錯亂
	bitsBuffer.p_data?=	（unsigned?char?*）（pData）;
	memset（bitsBuffer.p_data?0?PS_HDR_LEN）;
????bits_write（&bitsBuffer?32?0x000001BA）;			/*start?codes*/
	bits_write（&bitsBuffer?2?	1）;						/*marker?bits?‘01b‘*/
????bits_write（&bitsBuffer?3?	（s64Scr>>30）&0x07）;?????/*System?clock?[32..30]*/
	bits_write（&bitsBuffer?1?	1）;						/*marker?bit*/
????bits_write（&bitsBuffer?15?（s64Scr>>15）&0x7FFF）;???/*System?clock?[29..15]*/
	bits_write（&bitsBuffer?1?	1）;						/*marker?bit*/
????bits_write（&bitsBuffer?15?s64Scr&0x7fff）;?????????/*System?clock?[29..15]*/
	bits_write（&bitsBuffer?1?	1）;						/*marker?bit*/
	bits_write（&bitsBuffer?9?	lScrExt&0x01ff）;		/*System?clock?[14..0]*/
	bits_write（&bitsBuffer?1?	1）;						/*marker?bit*/
	bits_write（&bitsBuffer?22?（255）&0x3fffff）;		/*bit?rate（n?units?of?50?bytes?per?second.）*/
	bits_write（&bitsBuffer?2?	3）;						/*marker?bits?‘11‘*/
	bits_write（&bitsBuffer?5?	0x1f）;					/*reserved（reserved?for?future?use）*/
	bits_write（&bitsBuffer?3?	0）;						/*stuffing?length*/
	return?0;
}

/***
?*@remark:???sys頭的封裝里面的具體數據的填寫已經占位，可以參考標準
?*@param?:???pData??[in]?填充ps頭數據的地址
?*@return:???0?success?others?failed
*/
int?PSBuild::MakeSysHeader（char?*pData）
{
	
	bits_buffer_s??	bitsBuffer;
	bitsBuffer.i_size?=?SYS_HDR_LEN;
	bitsBuffer.i_data?=?0;
	bitsBuffer.i_mask?=?0x80;
	bitsBuffer.p_data?=	（unsigned?char?*）（pData）;
	memset（bitsBuffer.p_data?0?SYS_HDR_LEN）;
	/*system?header*/
	bits_write（?&bitsBuffer?32?0x000001BB）;	/*start?code*/
????bits_write（?&bitsBuffer?16?SYS_HDR_LEN-6）;/*header_length?表示次字節后面的長度，后面的相關頭也是次意思*/
????bits_write（?&bitsBuffer?1	?1）;????????????/*marker_bit*/
	bits_write（?&bitsBuffer?22?50000）;		/*rate_bound*/
????bits_write（?&bitsBuffer?1??1）;????????????/*marker_bit*/
????bits_write（?&bitsBuffer?6??1）;????????????/*audio_bound*/
????bits_write（?&bitsBuffer?1??0）;????????????/*fixed_flag?*/
????bits_write（?&bitsBuffer?1??1）;????????	/*CSPS_flag?*/
????bits_write（?&bitsBuffer?1??1）;????????	/*system_audio_lock_flag*/
????bits_write（?&bitsBuffer?1??1）;????????	/*system_video_lock_flag*/
????bits_write（?&bitsBuffer?1??1）;????????	/*marker_bit*/
????bits_write（?&bitsBuffer?5??1）;????????	/*video

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

????I.A....??????6526??2015-10-29?10:07??include\PSAnalysis.h

????I.A....???????232??2014-09-11?10:43??include\RTPAnalysisLibrary.h

????I.A....??????8379??2015-11-03?15:11??include\RTPPacketAnalysis.h

????I.A....?????22598??2015-10-29?14:42??src\PSAnalysis.cpp

????I.A....?????22485??2015-11-03?15:11??src\RTPPacketAnalysis.cpp

?????目錄??????????0??2015-11-03?15:13??include

?????目錄??????????0??2015-11-03?15:13??src

-----------?---------??----------?-----??----

????????????????60220????????????????????7