x264這個sdk非常棒！

x264原始碼：

./configure    --enable-shared     --disable-asm

make

找到pexports原始檔

./configure

make 

編譯出來的pexports.exe是i686平臺的。

拷貝pexports.exe放到

D:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.15.26726\bin\Hostx64\x86

開啟vs2017開始中的 “VS 2017的x64_x86交叉工具命令提示符

把libx264-157.dll拷貝到一個獨立的資料夾，然後執行：

pexports ./libx264-157.dll > libx264-157.def

再執行：

lib /def:libx264-157.def /machine:x86 /out:libx264-157.lib

把x264的include資料夾拷貝到安裝的位置，把其他的libx264-157.dll和libx264-157.lib放到  bin目錄和lib目錄中。

然後就可以在vs2017的vc專案的x86的release中使用了。

測試環境，下面這個經典的例子已經包含了編碼器的主要使用流程，只是引數設定上略顯單調，引數的使用需要慢慢掌握。

新建VC 2017的控制檯程式，設定為x86專案，配置屬性中的 包含目錄 和 庫目錄 以及 連結輸入libx264-157.lib:

#include <cassert>
#include <iostream>
#include <string>
#include "stdint.h"
extern "C"
{
#include "x264.h"
};
unsigned int g_uiPTSFactor = 0;
int iNal = 0;
x264_nal_t* pNals = NULL;
int encode(x264_t* p264, x264_picture_t* pIn, x264_picture_t* pOut);
int main(int argc, char** argv)
{
	int iResult = 0;
	x264_t* pX264Handle = NULL;

	x264_param_t* pX264Param = new x264_param_t;
	assert(pX264Param);
	//* 配置為預設引數
	x264_param_default(pX264Param);
	//* cpuFlags
	pX264Param->i_threads = X264_SYNC_LOOKAHEAD_AUTO;
	//* video Properties
	pX264Param->i_width = 320; //* width
	pX264Param->i_height = 240; //* height
	pX264Param->i_frame_total = 0; //* 視訊總幀數，0表示任意
	pX264Param->i_keyint_max = 10;
	//* bitstream parameters
	pX264Param->i_bframe = 5;
	pX264Param->b_open_gop = 0;
	pX264Param->i_bframe_pyramid = 0;
	pX264Param->i_bframe_adaptive = X264_B_ADAPT_TRELLIS;

	//* 位元流引數
	//pX264Param->vui.i_sar_width = 1080;
	//pX264Param->vui.i_sar_height = 720;

	//* Log引數
	pX264Param->i_log_level = X264_LOG_DEBUG;
	//* Rate control Parameters
	pX264Param->rc.i_bitrate = 1024 * 10;//* 位元速率（Kbps)
	//* muxing parameters
	pX264Param->i_fps_den = 1; //* 幀率分母
	pX264Param->i_fps_num = 25;//* 幀率分子
	pX264Param->i_timebase_den = pX264Param->i_fps_num;
	pX264Param->i_timebase_num = pX264Param->i_fps_den;

	//* 設定編碼等級profile : baseline、main、height ( 直播baseline:流暢 、Main:有停頓現象 、本地FLV檔案:main)
	x264_param_apply_profile(pX264Param, x264_profile_names[1]);

	//* 建立264編碼器。後面可以使用x264_encoder_parameters來編碼器引數，可以使用x264_encoder_reconfig更新設定引數
	pX264Handle = x264_encoder_open(pX264Param);
	assert(pX264Handle);

	//* 獲取流的PPS和SPS
	iResult = x264_encoder_headers(pX264Handle, &pNals, &iNal);
	assert(iResult >= 0);
	//* PPS SPS 解析
	for (int i = 0; i < iNal; ++i)
	{
		switch (pNals[i].i_type)
		{
		case NAL_SPS:
			break;
		case  NAL_PPS:
			break;
		default:
			break;
		}
	}

	//* 編碼器快取的最大幀數
	int iMaxFrames = x264_encoder_maximum_delayed_frames(pX264Handle);

	//* 編碼需要的臨時變數
	iNal = 0;
	pNals = NULL;
	x264_picture_t* pPicIn = new x264_picture_t;
	x264_picture_t* pPicOut = new x264_picture_t;

	x264_picture_init(pPicOut);
	x264_picture_alloc(pPicIn, X264_CSP_I420, pX264Param->i_width, pX264Param->i_height);
	pPicIn->img.i_csp = X264_CSP_I420;
	pPicIn->img.i_plane = 3;

	//* 建立264本地視訊檔案
	FILE* pFile;
	fopen_s(&pFile,"d:\\hellox264.264", "wb");
	assert(pFile);

	//* 一幀中YUV420中Y的資料長度
	int iDataLen = pX264Param->i_width * pX264Param->i_height;
	uint8_t* data = new uint8_t[iDataLen];

	unsigned int  uiComponent = 0;
	while (++uiComponent<1030)
	{
		//* 每一幀的資料構成YUV420
		::memset(data, uiComponent, iDataLen);
		::memcpy(pPicIn->img.plane[0], data, iDataLen);
		::memcpy(pPicIn->img.plane[1], data, iDataLen / 4);
		::memcpy(pPicIn->img.plane[2], data, iDataLen / 4);

		if (uiComponent <= 1000)
		{
			pPicIn->i_pts = uiComponent + g_uiPTSFactor * 1000;
			encode(pX264Handle, pPicIn, pPicOut);
		}
		else
		{
			int iResult = encode(pX264Handle, NULL, pPicOut);
			if (0 == iResult)
			{
				//uiComponent = 0;
				++g_uiPTSFactor;

			}
		}

		//* 編碼完成的多幀資料逐一寫入視訊檔案
		for (int i = 0; i < iNal; ++i)
		{
			fwrite(pNals[i].p_payload, 1, pNals[i].i_payload, pFile);
		}
	}
	//* 釋放清除影象資料
	x264_picture_clean(pPicIn);
//	x264_picture_clean(pPicOut);
	//* 利用控制代碼關閉解碼器
	x264_encoder_close(pX264Handle);
	pX264Handle = NULL;

	delete pPicIn;
	pPicIn = NULL;

	delete pPicOut;
	pPicOut = NULL;

	delete pX264Param;
	pX264Param = NULL;

	delete[] data;
	data = NULL;
	return 0;
}

int encode(x264_t* pX264Handle, x264_picture_t* pPicIn, x264_picture_t* pPicOut)
{

	int iResult = 0;
	iResult = x264_encoder_encode(pX264Handle, &pNals, &iNal, pPicIn, pPicOut);
	if (0 == iResult)
	{
		std::cout << "編碼成功，但是快取在編碼器中" << std::endl;
	}
	else
		if (iResult < 0)
		{
			std::cout << "編碼出錯" << std::endl;
		}
		else
			if (iResult > 0)
			{
				std::cout << "編碼成功，並需要寫入視訊檔案流" << std::endl;
			}

	
	int iFrames = x264_encoder_delayed_frames(pX264Handle);
	std::cout << "緩衝幀數:" << iFrames << "\n";//因為要進行編碼，所以編碼器需要快取很多幀才好生成I、P、B幀
	return iFrames;
}