声明 x264_param_t 结构体变量:

x264_param_t params;

x264_param_default_preset(&params, "ultrafast", "zerolatency");//优化编码延迟?

变量参数编码前赋值:

  params.i_csp                = (csp == ) ? X264_CSP_NV12 : csp;//编码比特流的CSP,仅支持i420,色彩空间设置
#ifdef SQUARE_AND_ROTATE
params.i_width = w;
params.i_height = h;
#else
params.i_width = width;
params.i_height = height;
#endif
params.vui.i_sar_width = ;
params.vui.i_sar_height = ; //设置长宽比 params.i_fps_num = fpsnum;//帧率分子
params.i_fps_den = fpsden;//帧率分母 params.i_timebase_num = ;
params.i_timebase_den = ;//ms params.i_keyint_max = fpsnum/fpsden;
params.i_keyint_min = fpsnum/fpsden;//X264_KEYINT_MIN_AUTO params.b_repeat_headers = ;//
params.b_annexb = ; params.b_deblocking_filter = ;
params.rc.f_rf_constant = ;
params.rc.i_bitrate = bitrate;

初始化编码器:

enc = x264_encoder_open(&params);

获取整个流的pps和SPS??:

int s = x264_encoder_headers(enc, &nals, &nal_count);

-----------------------------------------------------------------

x264编码:

初始化图片信息:

x264_picture_t picin, picout;
x264_picture_init(&picin);

对图片信息参数设定:

picin.i_pts            = ts;
picin.i_type = X264_TYPE_AUTO;
picin.i_qpplus1 = ;
picin.img.i_csp = (csp == ) ? X264_CSP_NV12 : csp;//special hack for android
。。。。。。。
。。。。。。。
。。。。。

对帧进行x264编码:

ret = x264_encoder_encode(enc, &nals, &nnal, &picin, &picout);

备注:总结一下就是:

(1)初始化并设定x264_param_t

(2)初始化并设定 x264_picture_t

(3)x264编码

=====================================================

参考:

X264多线程分析

http://blog.sina.com.cn/s/blog_4ae178ba01013yix.html

x264的编码示例
http://blog.csdn.net/xyyangkun/article/details/7255372/

x264编码详细文字全过程

http://www.cnblogs.com/chuncn/archive/2011/02/25/1459805.html

05-11 18:29
查看更多