/*=============================================================================
#?????FileName:?h264encoder.c
#?????????Desc:?this?program?aim?to?get?image?from?USB?camera
#???????????????used?the?V4L2?interface.
#???????Author:?Licaibiao
#??????Version:?
#???LastChange:?2016-12-11?
#??????History:

=============================================================================*/
#include?
#include?
#include?
#include?“./include/h264encoder.h“

void?compress_begin（Encoder?*en?int?width?int?height）?{
	en->param?=?（x264_param_t?*）?malloc（sizeof（x264_param_t））;
	en->picture?=?（x264_picture_t?*）?malloc（sizeof（x264_picture_t））;
	x264_param_default（en->param）;?//set?default?param
	//en->param->rc.i_rc_method?=?X264_RC_CQP;
	//?en->param->i_log_level?=?X264_LOG_NONE;

	?en->param->i_threads??=?X264_SYNC_LOOKAHEAD_AUTO;

	en->param->i_width?=?width;?//set?frame?width
	en->param->i_height?=?height;?//set?frame?height

	en->param->i_frame_total?=?0;

	en->param->i_keyint_max?=?10;
	en->param->rc.i_lookahead?=?0;?
	en->param->i_bframe?=?5;?

	en->param->b_open_gop?=?0;
	en->param->i_bframe_pyramid?=?0;
	en->param->i_bframe_adaptive?=?X264_B_ADAPT_TRELLIS;

	en->param->rc.i_bitrate?=?1024?*?10;//rate?10?kbps
	en->param->i_fps_num?=?25;?
	en->param->i_fps_den?=?1;
	x264_param_apply_profile（en->param?x264_profile_names[0]）;?

	if?（（en->handle?=?x264_encoder_open（en->param））?==?0）?{
		return;
	}
	/*?Create?a?new?pic?*/
	x264_picture_alloc（en->picture?X264_CSP_I420?en->param->i_width
			en->param->i_height）;
	en->picture->img.i_csp?=?X264_CSP_I420;
	en->picture->img.i_plane?=?3;
}

int?compress_frame（Encoder?*en?int?type?uint8_t?*in?uint8_t?*out）?{
	x264_picture_t?pic_out;
	int?nNal?=?-1;
	int?result?=?0;
	int?i?=?0;
	uint8_t?*p_out?=?out;

	char?*y?=?en->picture->img.plane[0];???
	char?*u?=?en->picture->img.plane[1];???
	char?*v?=?en->picture->img.plane[2];???

	//yuv420_length?=?1.5?*?en->param->i_width?*?en->param->i_height
	//int?length?=??en->param->i_width?*?en->param->i_height;
	//y?=?640*480?;?U?=?640*480*0.25?V?=?640*480*0.25;?
	memcpy（yin307200）;
	memcpy（uin+30720076800）;
	memcpy（vin+38400076800）;
	
	switch?（type）?{
	case?0:
		en->picture->i_type?=?X264_TYPE_P;
		break;
	case?1:
		en->picture->i_type?=?X264_TYPE_IDR;
		break;
	case?2:
		en->picture->i_type?=?X264_TYPE_I;
		break;
	default:
		en->picture->i_type?=?X264_TYPE_AUTO;
		break;
	}

	if?（x264_encoder_encode（en->handle?&（en->nal）?&nNal?en->picture
			&pic_out）?		return?-1;
	}

	for?（i?=?0;?i?		memcpy（p_out?en->nal[i].p_payload?en->nal[i].i_payload）;???
		p_out?+=?en->nal[i].i_payload;								?
		result?+=?en->nal[i].i_payload;
	}

	return?result;
}

void?compress_end（Encoder?*en）?{
	if?（en->picture）?{
		x264_picture_clean（en->picture）;
		free（en->picture）;
		en->picture?=?0;
	}
	if?（en->param）?{
		free（en->param）;
		en->param?=?0;
	}
	if?（en->handle）?{
		x264_encoder_close（en->handle）;
	}
	//free（en）;
}