WebSVN – Kolibri OS – Blame – /contrib/sdk/sources/ffmpeg/libavcodec/motion_est.c

Rev	Author	Line No.	Line
4349	Serge	1	/*
		2	* Motion estimation
		3	* Copyright (c) 2000,2001 Fabrice Bellard
		4	* Copyright (c) 2002-2004 Michael Niedermayer
		5	*
		6	* new motion estimation (X1/EPZS) by Michael Niedermayer
		7	*
		8	* This file is part of FFmpeg.
		9	*
		10	* FFmpeg is free software; you can redistribute it and/or
		11	* modify it under the terms of the GNU Lesser General Public
		12	* License as published by the Free Software Foundation; either
		13	* version 2.1 of the License, or (at your option) any later version.
		14	*
		15	* FFmpeg is distributed in the hope that it will be useful,
		16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		18	* Lesser General Public License for more details.
		19	*
		20	* You should have received a copy of the GNU Lesser General Public
		21	* License along with FFmpeg; if not, write to the Free Software
		22	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
		23	*/
		24
		25	/**
		26	* @file
		27	* Motion estimation.
		28	*/
		29
		30	#include
		31	#include
		32	#include
		33
		34	#include "avcodec.h"
		35	#include "mathops.h"
		36	#include "mpegvideo.h"
		37
		38	#undef NDEBUG
		39	#include
		40
		41	#define P_LEFT P[1]
		42	#define P_TOP P[2]
		43	#define P_TOPRIGHT P[3]
		44	#define P_MEDIAN P[4]
		45	#define P_MV1 P[9]
		46
		47	static int sad_hpel_motion_search(MpegEncContext * s,
		48	int mx_ptr, int my_ptr, int dmin,
		49	int src_index, int ref_index,
		50	int size, int h);
		51
		52	static inline unsigned update_map_generation(MotionEstContext *c)
		53	{
		54	c->map_generation+= 1<<(ME_MAP_MV_BITS*2);
		55	if(c->map_generation==0){
		56	c->map_generation= 1<<(ME_MAP_MV_BITS*2);
		57	memset(c->map, 0, sizeof(uint32_t)*ME_MAP_SIZE);
		58	}
		59	return c->map_generation;
		60	}
		61
		62	/* shape adaptive search stuff */
		63	typedef struct Minima{
		64	int height;
		65	int x, y;
		66	int checked;
		67	}Minima;
		68
		69	static int minima_cmp(const void a, const void b){
		70	const Minima da = (const Minima ) a;
		71	const Minima db = (const Minima ) b;
		72
		73	return da->height - db->height;
		74	}
		75
		76	#define FLAG_QPEL 1 //must be 1
		77	#define FLAG_CHROMA 2
		78	#define FLAG_DIRECT 4
		79
		80	static inline void init_ref(MotionEstContext c, uint8_t src[3], uint8_t ref[3], uint8_t ref2[3], int x, int y, int ref_index){
		81	const int offset[3]= {
		82	y*c-> stride + x,
		83	((y*c->uvstride + x)>>1),
		84	((y*c->uvstride + x)>>1),
		85	};
		86	int i;
		87	for(i=0; i<3; i++){
		88	c->src[0][i]= src [i] + offset[i];
		89	c->ref[0][i]= ref [i] + offset[i];
		90	}
		91	if(ref_index){
		92	for(i=0; i<3; i++){
		93	c->ref[ref_index][i]= ref2[i] + offset[i];
		94	}
		95	}
		96	}
		97
		98	static int get_flags(MotionEstContext *c, int direct, int chroma){
		99	return ((c->avctx->flags&CODEC_FLAG_QPEL) ? FLAG_QPEL : 0)
		100	+ (direct ? FLAG_DIRECT : 0)
		101	+ (chroma ? FLAG_CHROMA : 0);
		102	}
		103
		104	static av_always_inline int cmp_direct_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		105	const int size, const int h, int ref_index, int src_index,
		106	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel){
		107	MotionEstContext * const c= &s->me;
		108	const int stride= c->stride;
		109	const int hx= subx + (x<<(1+qpel));
		110	const int hy= suby + (y<<(1+qpel));
		111	uint8_t * const * const ref= c->ref[ref_index];
		112	uint8_t * const * const src= c->src[src_index];
		113	int d;
		114	//FIXME check chroma 4mv, (no crashes ...)
		115	av_assert2(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1));
		116	if(x >= c->xmin && hx <= c->xmax<<(qpel+1) && y >= c->ymin && hy <= c->ymax<<(qpel+1)){
		117	const int time_pp= s->pp_time;
		118	const int time_pb= s->pb_time;
		119	const int mask= 2*qpel+1;
		120	if(s->mv_type==MV_TYPE_8X8){
		121	int i;
		122	for(i=0; i<4; i++){
		123	int fx = c->direct_basis_mv[i][0] + hx;
		124	int fy = c->direct_basis_mv[i][1] + hy;
		125	int bx = hx ? fx - c->co_located_mv[i][0] : c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(qpel+4));
		126	int by = hy ? fy - c->co_located_mv[i][1] : c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(qpel+4));
		127	int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
		128	int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
		129
		130	uint8_t dst= c->temp + 8(i&1) + 8stride(i>>1);
		131	if(qpel){
		132	c->qpel_put[1][fxy](dst, ref[0] + (fx>>2) + (fy>>2)*stride, stride);
		133	c->qpel_avg[1][bxy](dst, ref[8] + (bx>>2) + (by>>2)*stride, stride);
		134	}else{
		135	c->hpel_put[1][fxy](dst, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 8);
		136	c->hpel_avg[1][bxy](dst, ref[8] + (bx>>1) + (by>>1)*stride, stride, 8);
		137	}
		138	}
		139	}else{
		140	int fx = c->direct_basis_mv[0][0] + hx;
		141	int fy = c->direct_basis_mv[0][1] + hy;
		142	int bx = hx ? fx - c->co_located_mv[0][0] : (c->co_located_mv[0][0]*(time_pb - time_pp)/time_pp);
		143	int by = hy ? fy - c->co_located_mv[0][1] : (c->co_located_mv[0][1]*(time_pb - time_pp)/time_pp);
		144	int fxy= (fx&mask) + ((fy&mask)<<(qpel+1));
		145	int bxy= (bx&mask) + ((by&mask)<<(qpel+1));
		146
		147	if(qpel){
		148	c->qpel_put[1][fxy](c->temp , ref[0] + (fx>>2) + (fy>>2)*stride , stride);
		149	c->qpel_put[1][fxy](c->temp + 8 , ref[0] + (fx>>2) + (fy>>2)*stride + 8 , stride);
		150	c->qpel_put[1][fxy](c->temp + 8stride, ref[0] + (fx>>2) + (fy>>2)stride + 8*stride, stride);
		151	c->qpel_put[1][fxy](c->temp + 8 + 8stride, ref[0] + (fx>>2) + (fy>>2)stride + 8 + 8*stride, stride);
		152	c->qpel_avg[1][bxy](c->temp , ref[8] + (bx>>2) + (by>>2)*stride , stride);
		153	c->qpel_avg[1][bxy](c->temp + 8 , ref[8] + (bx>>2) + (by>>2)*stride + 8 , stride);
		154	c->qpel_avg[1][bxy](c->temp + 8stride, ref[8] + (bx>>2) + (by>>2)stride + 8*stride, stride);
		155	c->qpel_avg[1][bxy](c->temp + 8 + 8stride, ref[8] + (bx>>2) + (by>>2)stride + 8 + 8*stride, stride);
		156	}else{
		157	av_assert2((fx>>1) + 16*s->mb_x >= -16);
		158	av_assert2((fy>>1) + 16*s->mb_y >= -16);
		159	av_assert2((fx>>1) + 16*s->mb_x <= s->width);
		160	av_assert2((fy>>1) + 16*s->mb_y <= s->height);
		161	av_assert2((bx>>1) + 16*s->mb_x >= -16);
		162	av_assert2((by>>1) + 16*s->mb_y >= -16);
		163	av_assert2((bx>>1) + 16*s->mb_x <= s->width);
		164	av_assert2((by>>1) + 16*s->mb_y <= s->height);
		165
		166	c->hpel_put[0][fxy](c->temp, ref[0] + (fx>>1) + (fy>>1)*stride, stride, 16);
		167	c->hpel_avg[0][bxy](c->temp, ref[8] + (bx>>1) + (by>>1)*stride, stride, 16);
		168	}
		169	}
		170	d = cmp_func(s, c->temp, src[0], stride, 16);
		171	}else
		172	d= 256256256*32;
		173	return d;
		174	}
		175
		176	static av_always_inline int cmp_inline(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		177	const int size, const int h, int ref_index, int src_index,
		178	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, int qpel, int chroma){
		179	MotionEstContext * const c= &s->me;
		180	const int stride= c->stride;
		181	const int uvstride= c->uvstride;
		182	const int dxy= subx + (suby<<(1+qpel)); //FIXME log2_subpel?
		183	const int hx= subx + (x<<(1+qpel));
		184	const int hy= suby + (y<<(1+qpel));
		185	uint8_t * const * const ref= c->ref[ref_index];
		186	uint8_t * const * const src= c->src[src_index];
		187	int d;
		188	//FIXME check chroma 4mv, (no crashes ...)
		189	int uvdxy; /* no, it might not be used uninitialized */
		190	if(dxy){
		191	if(qpel){
		192	c->qpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride); //FIXME prototype (add h)
		193	if(chroma){
		194	int cx= hx/2;
		195	int cy= hy/2;
		196	cx= (cx>>1)\|(cx&1);
		197	cy= (cy>>1)\|(cy&1);
		198	uvdxy= (cx&1) + 2*(cy&1);
		199	//FIXME x/y wrong, but mpeg4 qpel is sick anyway, we should drop as much of it as possible in favor for h264
		200	}
		201	}else{
		202	c->hpel_put[size][dxy](c->temp, ref[0] + x + y*stride, stride, h);
		203	if(chroma)
		204	uvdxy= dxy \| (x&1) \| (2*(y&1));
		205	}
		206	d = cmp_func(s, c->temp, src[0], stride, h);
		207	}else{
		208	d = cmp_func(s, src[0], ref[0] + x + y*stride, stride, h);
		209	if(chroma)
		210	uvdxy= (x&1) + 2*(y&1);
		211	}
		212	if(chroma){
		213	uint8_t * const uvtemp= c->temp + 16*stride;
		214	c->hpel_put[size+1][uvdxy](uvtemp , ref[1] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
		215	c->hpel_put[size+1][uvdxy](uvtemp+8, ref[2] + (x>>1) + (y>>1)*uvstride, uvstride, h>>1);
		216	d += chroma_cmp_func(s, uvtemp , src[1], uvstride, h>>1);
		217	d += chroma_cmp_func(s, uvtemp+8, src[2], uvstride, h>>1);
		218	}
		219	return d;
		220	}
		221
		222	static int cmp_simple(MpegEncContext *s, const int x, const int y,
		223	int ref_index, int src_index,
		224	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func){
		225	return cmp_inline(s,x,y,0,0,0,16,ref_index,src_index, cmp_func, chroma_cmp_func, 0, 0);
		226	}
		227
		228	static int cmp_fpel_internal(MpegEncContext *s, const int x, const int y,
		229	const int size, const int h, int ref_index, int src_index,
		230	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
		231	if(flags&FLAG_DIRECT){
		232	return cmp_direct_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
		233	}else{
		234	return cmp_inline(s,x,y,0,0,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
		235	}
		236	}
		237
		238	static int cmp_internal(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		239	const int size, const int h, int ref_index, int src_index,
		240	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
		241	if(flags&FLAG_DIRECT){
		242	return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL);
		243	}else{
		244	return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags&FLAG_QPEL, flags&FLAG_CHROMA);
		245	}
		246	}
		247
		248	/** @brief compares a block (either a full macroblock or a partition thereof)
		249	against a proposed motion-compensated prediction of that block
		250	*/
		251	static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		252	const int size, const int h, int ref_index, int src_index,
		253	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
		254	if(av_builtin_constant_p(flags) && av_builtin_constant_p(h) && av_builtin_constant_p(size)
		255	&& av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
		256	&& flags==0 && h==16 && size==0 && subx==0 && suby==0){
		257	return cmp_simple(s,x,y,ref_index,src_index, cmp_func, chroma_cmp_func);
		258	}else if(av_builtin_constant_p(subx) && av_builtin_constant_p(suby)
		259	&& subx==0 && suby==0){
		260	return cmp_fpel_internal(s,x,y,size,h,ref_index,src_index, cmp_func, chroma_cmp_func,flags);
		261	}else{
		262	return cmp_internal(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, flags);
		263	}
		264	}
		265
		266	static int cmp_hpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		267	const int size, const int h, int ref_index, int src_index,
		268	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
		269	if(flags&FLAG_DIRECT){
		270	return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0);
		271	}else{
		272	return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 0, flags&FLAG_CHROMA);
		273	}
		274	}
		275
		276	static int cmp_qpel(MpegEncContext *s, const int x, const int y, const int subx, const int suby,
		277	const int size, const int h, int ref_index, int src_index,
		278	me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags){
		279	if(flags&FLAG_DIRECT){
		280	return cmp_direct_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1);
		281	}else{
		282	return cmp_inline(s,x,y,subx,suby,size,h,ref_index,src_index, cmp_func, chroma_cmp_func, 1, flags&FLAG_CHROMA);
		283	}
		284	}
		285
		286	#include "motion_est_template.c"
		287
		288	static int zero_cmp(void s, uint8_t a, uint8_t *b, int stride, int h){
		289	return 0;
		290	}
		291
		292	static void zero_hpel(uint8_t a, const uint8_t b, ptrdiff_t stride, int h){
		293	}
		294
		295	int ff_init_me(MpegEncContext *s){
		296	MotionEstContext * const c= &s->me;
		297	int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<
		298	int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255);
		299
		300	if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -FFMIN(ME_MAP_SIZE, MAX_SAB_SIZE)){
		301	av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n");
		302	return -1;
		303	}
		304	//special case of snow is needed because snow uses its own iterative ME code
		305	if(s->me_method!=ME_ZERO && s->me_method!=ME_EPZS && s->me_method!=ME_X1 && s->avctx->codec_id != AV_CODEC_ID_SNOW){
		306	av_log(s->avctx, AV_LOG_ERROR, "me_method is only allowed to be set to zero and epzs; for hex,umh,full and others see dia_size\n");
		307	return -1;
		308	}
		309
		310	c->avctx= s->avctx;
		311
		312	if(cache_size < 2*dia_size && !c->stride){
		313	av_log(s->avctx, AV_LOG_INFO, "ME_MAP size may be a little small for the selected diamond size\n");
		314	}
		315
		316	ff_set_cmp(&s->dsp, s->dsp.me_pre_cmp, c->avctx->me_pre_cmp);
		317	ff_set_cmp(&s->dsp, s->dsp.me_cmp, c->avctx->me_cmp);
		318	ff_set_cmp(&s->dsp, s->dsp.me_sub_cmp, c->avctx->me_sub_cmp);
		319	ff_set_cmp(&s->dsp, s->dsp.mb_cmp, c->avctx->mb_cmp);
		320
		321	c->flags = get_flags(c, 0, c->avctx->me_cmp &FF_CMP_CHROMA);
		322	c->sub_flags= get_flags(c, 0, c->avctx->me_sub_cmp&FF_CMP_CHROMA);
		323	c->mb_flags = get_flags(c, 0, c->avctx->mb_cmp &FF_CMP_CHROMA);
		324
		325	/FIXME s->no_rounding b_type/
		326	if(s->flags&CODEC_FLAG_QPEL){
		327	c->sub_motion_search= qpel_motion_search;
		328	c->qpel_avg= s->dsp.avg_qpel_pixels_tab;
		329	if(s->no_rounding) c->qpel_put= s->dsp.put_no_rnd_qpel_pixels_tab;
		330	else c->qpel_put= s->dsp.put_qpel_pixels_tab;
		331	}else{
		332	if(c->avctx->me_sub_cmp&FF_CMP_CHROMA)
		333	c->sub_motion_search= hpel_motion_search;
		334	else if( c->avctx->me_sub_cmp == FF_CMP_SAD
		335	&& c->avctx-> me_cmp == FF_CMP_SAD
		336	&& c->avctx-> mb_cmp == FF_CMP_SAD)
		337	c->sub_motion_search= sad_hpel_motion_search; // 2050 vs. 2450 cycles
		338	else
		339	c->sub_motion_search= hpel_motion_search;
		340	}
		341	c->hpel_avg = s->hdsp.avg_pixels_tab;
		342	if (s->no_rounding)
		343	c->hpel_put = s->hdsp.put_no_rnd_pixels_tab;
		344	else
		345	c->hpel_put = s->hdsp.put_pixels_tab;
		346
		347	if(s->linesize){
		348	c->stride = s->linesize;
		349	c->uvstride= s->uvlinesize;
		350	}else{
		351	c->stride = 16*s->mb_width + 32;
		352	c->uvstride= 8*s->mb_width + 16;
		353	}
		354
		355	/* 8x8 fullpel search would need a 4x4 chroma compare, which we do
		356	* not have yet, and even if we had, the motion estimation code
		357	* does not expect it. */
		358	if(s->codec_id != AV_CODEC_ID_SNOW){
		359	if((c->avctx->me_cmp&FF_CMP_CHROMA)/* && !s->dsp.me_cmp[2]*/){
		360	s->dsp.me_cmp[2]= zero_cmp;
		361	}
		362	if((c->avctx->me_sub_cmp&FF_CMP_CHROMA) && !s->dsp.me_sub_cmp[2]){
		363	s->dsp.me_sub_cmp[2]= zero_cmp;
		364	}
		365	c->hpel_put[2][0]= c->hpel_put[2][1]=
		366	c->hpel_put[2][2]= c->hpel_put[2][3]= zero_hpel;
		367	}
		368
		369	if(s->codec_id == AV_CODEC_ID_H261){
		370	c->sub_motion_search= no_sub_motion_search;
		371	}
		372
		373	return 0;
		374	}
		375
		376	#define CHECK_SAD_HALF_MV(suffix, x, y) \
		377	{\
		378	d= s->dsp.pix_abs[size][(x?1:0)+(y?2:0)](NULL, pix, ptr+((x)>>1), stride, h);\
		379	d += (mv_penalty[pen_x + x] + mv_penalty[pen_y + y])*penalty_factor;\
		380	COPY3_IF_LT(dminh, d, dx, x, dy, y)\
		381	}
		382
		383	static int sad_hpel_motion_search(MpegEncContext * s,
		384	int mx_ptr, int my_ptr, int dmin,
		385	int src_index, int ref_index,
		386	int size, int h)
		387	{
		388	MotionEstContext * const c= &s->me;
		389	const int penalty_factor= c->sub_penalty_factor;
		390	int mx, my, dminh;
		391	uint8_t pix, ptr;
		392	int stride= c->stride;
		393	const int flags= c->sub_flags;
		394	LOAD_COMMON
		395
		396	av_assert2(flags == 0);
		397
		398	if(c->skip){
		399	*mx_ptr = 0;
		400	*my_ptr = 0;
		401	return dmin;
		402	}
		403
		404	pix = c->src[src_index][0];
		405
		406	mx = *mx_ptr;
		407	my = *my_ptr;
		408	ptr = c->ref[ref_index][0] + (my * stride) + mx;
		409
		410	dminh = dmin;
		411
		412	if (mx > xmin && mx < xmax &&
		413	my > ymin && my < ymax) {
		414	int dx=0, dy=0;
		415	int d, pen_x, pen_y;
		416	const int index= (my<
		417	const int t= score_map[(index-(1<
		418	const int l= score_map[(index- 1 )&(ME_MAP_SIZE-1)];
		419	const int r= score_map[(index+ 1 )&(ME_MAP_SIZE-1)];
		420	const int b= score_map[(index+(1<
		421	mx<<=1;
		422	my<<=1;
		423
		424
		425	pen_x= pred_x + mx;
		426	pen_y= pred_y + my;
		427
		428	ptr-= stride;
		429	if(t<=b){
		430	CHECK_SAD_HALF_MV(y2 , 0, -1)
		431	if(l<=r){
		432	CHECK_SAD_HALF_MV(xy2, -1, -1)
		433	if(t+r<=b+l){
		434	CHECK_SAD_HALF_MV(xy2, +1, -1)
		435	ptr+= stride;
		436	}else{
		437	ptr+= stride;
		438	CHECK_SAD_HALF_MV(xy2, -1, +1)
		439	}
		440	CHECK_SAD_HALF_MV(x2 , -1, 0)
		441	}else{
		442	CHECK_SAD_HALF_MV(xy2, +1, -1)
		443	if(t+l<=b+r){
		444	CHECK_SAD_HALF_MV(xy2, -1, -1)
		445	ptr+= stride;
		446	}else{
		447	ptr+= stride;
		448	CHECK_SAD_HALF_MV(xy2, +1, +1)
		449	}
		450	CHECK_SAD_HALF_MV(x2 , +1, 0)
		451	}
		452	}else{
		453	if(l<=r){
		454	if(t+l<=b+r){
		455	CHECK_SAD_HALF_MV(xy2, -1, -1)
		456	ptr+= stride;
		457	}else{
		458	ptr+= stride;
		459	CHECK_SAD_HALF_MV(xy2, +1, +1)
		460	}
		461	CHECK_SAD_HALF_MV(x2 , -1, 0)
		462	CHECK_SAD_HALF_MV(xy2, -1, +1)
		463	}else{
		464	if(t+r<=b+l){
		465	CHECK_SAD_HALF_MV(xy2, +1, -1)
		466	ptr+= stride;
		467	}else{
		468	ptr+= stride;
		469	CHECK_SAD_HALF_MV(xy2, -1, +1)
		470	}
		471	CHECK_SAD_HALF_MV(x2 , +1, 0)
		472	CHECK_SAD_HALF_MV(xy2, +1, +1)
		473	}
		474	CHECK_SAD_HALF_MV(y2 , 0, +1)
		475	}
		476	mx+=dx;
		477	my+=dy;
		478
		479	}else{
		480	mx<<=1;
		481	my<<=1;
		482	}
		483
		484	*mx_ptr = mx;
		485	*my_ptr = my;
		486	return dminh;
		487	}
		488
		489	static inline void set_p_mv_tables(MpegEncContext * s, int mx, int my, int mv4)
		490	{
		491	const int xy= s->mb_x + s->mb_y*s->mb_stride;
		492
		493	s->p_mv_table[xy][0] = mx;
		494	s->p_mv_table[xy][1] = my;
		495
		496	/* has already been set to the 4 MV if 4MV is done */
		497	if(mv4){
		498	int mot_xy= s->block_index[0];
		499
		500	s->current_picture.motion_val[0][mot_xy ][0] = mx;
		501	s->current_picture.motion_val[0][mot_xy ][1] = my;
		502	s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
		503	s->current_picture.motion_val[0][mot_xy + 1][1] = my;
		504
		505	mot_xy += s->b8_stride;
		506	s->current_picture.motion_val[0][mot_xy ][0] = mx;
		507	s->current_picture.motion_val[0][mot_xy ][1] = my;
		508	s->current_picture.motion_val[0][mot_xy + 1][0] = mx;
		509	s->current_picture.motion_val[0][mot_xy + 1][1] = my;
		510	}
		511	}
		512
		513	/**
		514	* get fullpel ME search limits.
		515	*/
		516	static inline void get_limits(MpegEncContext *s, int x, int y)
		517	{
		518	MotionEstContext * const c= &s->me;
		519	int range= c->avctx->me_range >> (1 + !!(c->flags&FLAG_QPEL));
		520	int max_range = MAX_MV >> (1 + !!(c->flags&FLAG_QPEL));
		521	/*
		522	if(c->avctx->me_range) c->range= c->avctx->me_range >> 1;
		523	else c->range= 16;
		524	*/
		525	if (s->unrestricted_mv) {
		526	c->xmin = - x - 16;
		527	c->ymin = - y - 16;
		528	c->xmax = - x + s->width;
		529	c->ymax = - y + s->height;
		530	} else if (s->out_format == FMT_H261){
		531	// Search range of H261 is different from other codec standards
		532	c->xmin = (x > 15) ? - 15 : 0;
		533	c->ymin = (y > 15) ? - 15 : 0;
		534	c->xmax = (x < s->mb_width * 16 - 16) ? 15 : 0;
		535	c->ymax = (y < s->mb_height * 16 - 16) ? 15 : 0;
		536	} else {
		537	c->xmin = - x;
		538	c->ymin = - y;
		539	c->xmax = - x + s->mb_width *16 - 16;
		540	c->ymax = - y + s->mb_height*16 - 16;
		541	}
		542	if(!range \|\| range > max_range)
		543	range = max_range;
		544	if(range){
		545	c->xmin = FFMAX(c->xmin,-range);
		546	c->xmax = FFMIN(c->xmax, range);
		547	c->ymin = FFMAX(c->ymin,-range);
		548	c->ymax = FFMIN(c->ymax, range);
		549	}
		550	}
		551
		552	static inline void init_mv4_ref(MotionEstContext *c){
		553	const int stride= c->stride;
		554
		555	c->ref[1][0] = c->ref[0][0] + 8;
		556	c->ref[2][0] = c->ref[0][0] + 8*stride;
		557	c->ref[3][0] = c->ref[2][0] + 8;
		558	c->src[1][0] = c->src[0][0] + 8;
		559	c->src[2][0] = c->src[0][0] + 8*stride;
		560	c->src[3][0] = c->src[2][0] + 8;
		561	}
		562
		563	static inline int h263_mv4_search(MpegEncContext *s, int mx, int my, int shift)
		564	{
		565	MotionEstContext * const c= &s->me;
		566	const int size= 1;
		567	const int h=8;
		568	int block;
		569	int P[10][2];
		570	int dmin_sum=0, mx4_sum=0, my4_sum=0, i;
		571	int same=1;
		572	const int stride= c->stride;
		573	uint8_t *mv_penalty= c->current_mv_penalty;
		574	int saftey_cliping= s->unrestricted_mv && (s->width&15) && (s->height&15);
		575
		576	init_mv4_ref(c);
		577
		578	for(block=0; block<4; block++){
		579	int mx4, my4;
		580	int pred_x4, pred_y4;
		581	int dmin4;
		582	static const int off[4]= {2, 1, 1, -1};
		583	const int mot_stride = s->b8_stride;
		584	const int mot_xy = s->block_index[block];
		585
		586	if(saftey_cliping){
		587	c->xmax = - 16s->mb_x + s->width - 8(block &1);
		588	c->ymax = - 16s->mb_y + s->height - 8(block>>1);
		589	}
		590
		591	P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
		592	P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
		593
		594	if(P_LEFT[0] > (c->xmax<xmax<
		595
		596	/* special case for first line */
		597	if (s->first_slice_line && block<2) {
		598	c->pred_x= pred_x4= P_LEFT[0];
		599	c->pred_y= pred_y4= P_LEFT[1];
		600	} else {
		601	P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
		602	P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
		603	P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][0];
		604	P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + off[block]][1];
		605	if(P_TOP[1] > (c->ymax<ymax<
		606	if(P_TOPRIGHT[0] < (c->xmin<xmin<
		607	if(P_TOPRIGHT[0] > (c->xmax<xmax<
		608	if(P_TOPRIGHT[1] > (c->ymax<ymax<
		609
		610	P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		611	P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		612
		613	c->pred_x= pred_x4 = P_MEDIAN[0];
		614	c->pred_y= pred_y4 = P_MEDIAN[1];
		615	}
		616	P_MV1[0]= mx;
		617	P_MV1[1]= my;
		618	if(saftey_cliping)
		619	for(i=0; i<10; i++){
		620	if(P[i][0] > (c->xmax<xmax<
		621	if(P[i][1] > (c->ymax<ymax<
		622	}
		623
		624	dmin4 = epzs_motion_search4(s, &mx4, &my4, P, block, block, s->p_mv_table, (1<<16)>>shift);
		625
		626	dmin4= c->sub_motion_search(s, &mx4, &my4, dmin4, block, block, size, h);
		627
		628	if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
		629	int dxy;
		630	const int offset= ((block&1) + (block>>1)stride)8;
		631	uint8_t *dest_y = c->scratchpad + offset;
		632	if(s->quarter_sample){
		633	uint8_t ref= c->ref[block][0] + (mx4>>2) + (my4>>2)stride;
		634	dxy = ((my4 & 3) << 2) \| (mx4 & 3);
		635
		636	if(s->no_rounding)
		637	s->dsp.put_no_rnd_qpel_pixels_tab[1][dxy](dest_y , ref , stride);
		638	else
		639	s->dsp.put_qpel_pixels_tab [1][dxy](dest_y , ref , stride);
		640	}else{
		641	uint8_t ref= c->ref[block][0] + (mx4>>1) + (my4>>1)stride;
		642	dxy = ((my4 & 1) << 1) \| (mx4 & 1);
		643
		644	if(s->no_rounding)
		645	s->hdsp.put_no_rnd_pixels_tab[1][dxy](dest_y , ref , stride, h);
		646	else
		647	s->hdsp.put_pixels_tab [1][dxy](dest_y , ref , stride, h);
		648	}
		649	dmin_sum+= (mv_penalty[mx4-pred_x4] + mv_penalty[my4-pred_y4])*c->mb_penalty_factor;
		650	}else
		651	dmin_sum+= dmin4;
		652
		653	if(s->quarter_sample){
		654	mx4_sum+= mx4/2;
		655	my4_sum+= my4/2;
		656	}else{
		657	mx4_sum+= mx4;
		658	my4_sum+= my4;
		659	}
		660
		661	s->current_picture.motion_val[0][s->block_index[block]][0] = mx4;
		662	s->current_picture.motion_val[0][s->block_index[block]][1] = my4;
		663
		664	if(mx4 != mx \|\| my4 != my) same=0;
		665	}
		666
		667	if(same)
		668	return INT_MAX;
		669
		670	if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
		671	dmin_sum += s->dsp.mb_cmp[0](s, s->new_picture.f.data[0] + s->mb_x16 + s->mb_y16*stride, c->scratchpad, stride, 16);
		672	}
		673
		674	if(c->avctx->mb_cmp&FF_CMP_CHROMA){
		675	int dxy;
		676	int mx, my;
		677	int offset;
		678
		679	mx= ff_h263_round_chroma(mx4_sum);
		680	my= ff_h263_round_chroma(my4_sum);
		681	dxy = ((my & 1) << 1) \| (mx & 1);
		682
		683	offset= (s->mb_x8 + (mx>>1)) + (s->mb_y8 + (my>>1))*s->uvlinesize;
		684
		685	if(s->no_rounding){
		686	s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad , s->last_picture.f.data[1] + offset, s->uvlinesize, 8);
		687	s->hdsp.put_no_rnd_pixels_tab[1][dxy](c->scratchpad + 8, s->last_picture.f.data[2] + offset, s->uvlinesize, 8);
		688	}else{
		689	s->hdsp.put_pixels_tab [1][dxy](c->scratchpad , s->last_picture.f.data[1] + offset, s->uvlinesize, 8);
		690	s->hdsp.put_pixels_tab [1][dxy](c->scratchpad + 8, s->last_picture.f.data[2] + offset, s->uvlinesize, 8);
		691	}
		692
		693	dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.f.data[1] + s->mb_x8 + s->mb_y8*s->uvlinesize, c->scratchpad , s->uvlinesize, 8);
		694	dmin_sum += s->dsp.mb_cmp[1](s, s->new_picture.f.data[2] + s->mb_x8 + s->mb_y8*s->uvlinesize, c->scratchpad+8, s->uvlinesize, 8);
		695	}
		696
		697	c->pred_x= mx;
		698	c->pred_y= my;
		699
		700	switch(c->avctx->mb_cmp&0xFF){
		701	/*case FF_CMP_SSE:
		702	return dmin_sum+ 32s->qscales->qscale;*/
		703	case FF_CMP_RD:
		704	return dmin_sum;
		705	default:
		706	return dmin_sum+ 11*c->mb_penalty_factor;
		707	}
		708	}
		709
		710	static inline void init_interlaced_ref(MpegEncContext *s, int ref_index){
		711	MotionEstContext * const c= &s->me;
		712
		713	c->ref[1+ref_index][0] = c->ref[0+ref_index][0] + s->linesize;
		714	c->src[1][0] = c->src[0][0] + s->linesize;
		715	if(c->flags & FLAG_CHROMA){
		716	c->ref[1+ref_index][1] = c->ref[0+ref_index][1] + s->uvlinesize;
		717	c->ref[1+ref_index][2] = c->ref[0+ref_index][2] + s->uvlinesize;
		718	c->src[1][1] = c->src[0][1] + s->uvlinesize;
		719	c->src[1][2] = c->src[0][2] + s->uvlinesize;
		720	}
		721	}
		722
		723	static int interlaced_search(MpegEncContext *s, int ref_index,
		724	int16_t (mv_tables[2][2])[2], uint8_t field_select_tables[2], int mx, int my, int user_field_select)
		725	{
		726	MotionEstContext * const c= &s->me;
		727	const int size=0;
		728	const int h=8;
		729	int block;
		730	int P[10][2];
		731	uint8_t * const mv_penalty= c->current_mv_penalty;
		732	int same=1;
		733	const int stride= 2*s->linesize;
		734	int dmin_sum= 0;
		735	const int mot_stride= s->mb_stride;
		736	const int xy= s->mb_x + s->mb_y*mot_stride;
		737
		738	c->ymin>>=1;
		739	c->ymax>>=1;
		740	c->stride<<=1;
		741	c->uvstride<<=1;
		742	init_interlaced_ref(s, ref_index);
		743
		744	for(block=0; block<2; block++){
		745	int field_select;
		746	int best_dmin= INT_MAX;
		747	int best_field= -1;
		748
		749	for(field_select=0; field_select<2; field_select++){
		750	int dmin, mx_i, my_i;
		751	int16_t (*mv_table)[2]= mv_tables[block][field_select];
		752
		753	if(user_field_select){
		754	av_assert1(field_select==0 \|\| field_select==1);
		755	av_assert1(field_select_tables[block][xy]==0 \|\| field_select_tables[block][xy]==1);
		756	if(field_select_tables[block][xy] != field_select)
		757	continue;
		758	}
		759
		760	P_LEFT[0] = mv_table[xy - 1][0];
		761	P_LEFT[1] = mv_table[xy - 1][1];
		762	if(P_LEFT[0] > (c->xmax<<1)) P_LEFT[0] = (c->xmax<<1);
		763
		764	c->pred_x= P_LEFT[0];
		765	c->pred_y= P_LEFT[1];
		766
		767	if(!s->first_slice_line){
		768	P_TOP[0] = mv_table[xy - mot_stride][0];
		769	P_TOP[1] = mv_table[xy - mot_stride][1];
		770	P_TOPRIGHT[0] = mv_table[xy - mot_stride + 1][0];
		771	P_TOPRIGHT[1] = mv_table[xy - mot_stride + 1][1];
		772	if(P_TOP[1] > (c->ymax<<1)) P_TOP[1] = (c->ymax<<1);
		773	if(P_TOPRIGHT[0] < (c->xmin<<1)) P_TOPRIGHT[0]= (c->xmin<<1);
		774	if(P_TOPRIGHT[0] > (c->xmax<<1)) P_TOPRIGHT[0]= (c->xmax<<1);
		775	if(P_TOPRIGHT[1] > (c->ymax<<1)) P_TOPRIGHT[1]= (c->ymax<<1);
		776
		777	P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		778	P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		779	}
		780	P_MV1[0]= mx; //FIXME not correct if block != field_select
		781	P_MV1[1]= my / 2;
		782
		783	dmin = epzs_motion_search2(s, &mx_i, &my_i, P, block, field_select+ref_index, mv_table, (1<<16)>>1);
		784
		785	dmin= c->sub_motion_search(s, &mx_i, &my_i, dmin, block, field_select+ref_index, size, h);
		786
		787	mv_table[xy][0]= mx_i;
		788	mv_table[xy][1]= my_i;
		789
		790	if(s->dsp.me_sub_cmp[0] != s->dsp.mb_cmp[0]){
		791	int dxy;
		792
		793	//FIXME chroma ME
		794	uint8_t ref= c->ref[field_select+ref_index][0] + (mx_i>>1) + (my_i>>1)stride;
		795	dxy = ((my_i & 1) << 1) \| (mx_i & 1);
		796
		797	if(s->no_rounding){
		798	s->hdsp.put_no_rnd_pixels_tab[size][dxy](c->scratchpad, ref , stride, h);
		799	}else{
		800	s->hdsp.put_pixels_tab [size][dxy](c->scratchpad, ref , stride, h);
		801	}
		802	dmin= s->dsp.mb_cmp[size](s, c->src[block][0], c->scratchpad, stride, h);
		803	dmin+= (mv_penalty[mx_i-c->pred_x] + mv_penalty[my_i-c->pred_y] + 1)*c->mb_penalty_factor;
		804	}else
		805	dmin+= c->mb_penalty_factor; //field_select bits
		806
		807	dmin += field_select != block; //slightly prefer same field
		808
		809	if(dmin < best_dmin){
		810	best_dmin= dmin;
		811	best_field= field_select;
		812	}
		813	}
		814	{
		815	int16_t (*mv_table)[2]= mv_tables[block][best_field];
		816
		817	if(mv_table[xy][0] != mx) same=0; //FIXME check if these checks work and are any good at all
		818	if(mv_table[xy][1]&1) same=0;
		819	if(mv_table[xy][1]*2 != my) same=0;
		820	if(best_field != block) same=0;
		821	}
		822
		823	field_select_tables[block][xy]= best_field;
		824	dmin_sum += best_dmin;
		825	}
		826
		827	c->ymin<<=1;
		828	c->ymax<<=1;
		829	c->stride>>=1;
		830	c->uvstride>>=1;
		831
		832	if(same)
		833	return INT_MAX;
		834
		835	switch(c->avctx->mb_cmp&0xFF){
		836	/*case FF_CMP_SSE:
		837	return dmin_sum+ 32s->qscales->qscale;*/
		838	case FF_CMP_RD:
		839	return dmin_sum;
		840	default:
		841	return dmin_sum+ 11*c->mb_penalty_factor;
		842	}
		843	}
		844
		845	static inline int get_penalty_factor(int lambda, int lambda2, int type){
		846	switch(type&0xFF){
		847	default:
		848	case FF_CMP_SAD:
		849	return lambda>>FF_LAMBDA_SHIFT;
		850	case FF_CMP_DCT:
		851	return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
		852	case FF_CMP_W53:
		853	return (4*lambda)>>(FF_LAMBDA_SHIFT);
		854	case FF_CMP_W97:
		855	return (2*lambda)>>(FF_LAMBDA_SHIFT);
		856	case FF_CMP_SATD:
		857	case FF_CMP_DCT264:
		858	return (2*lambda)>>FF_LAMBDA_SHIFT;
		859	case FF_CMP_RD:
		860	case FF_CMP_PSNR:
		861	case FF_CMP_SSE:
		862	case FF_CMP_NSSE:
		863	return lambda2>>FF_LAMBDA_SHIFT;
		864	case FF_CMP_BIT:
		865	return 1;
		866	}
		867	}
		868
		869	void ff_estimate_p_frame_motion(MpegEncContext * s,
		870	int mb_x, int mb_y)
		871	{
		872	MotionEstContext * const c= &s->me;
		873	uint8_t pix, ppix;
		874	int sum, mx, my, dmin;
		875	int varc; ///< the variance of the block (sum of squared (p[y][x]-average))
		876	int vard; ///< sum of squared differences with the estimated motion vector
		877	int P[10][2];
		878	const int shift= 1+s->quarter_sample;
		879	int mb_type=0;
		880	Picture * const pic= &s->current_picture;
		881
		882	init_ref(c, s->new_picture.f.data, s->last_picture.f.data, NULL, 16mb_x, 16mb_y, 0);
		883
		884	av_assert0(s->quarter_sample==0 \|\| s->quarter_sample==1);
		885	av_assert0(s->linesize == c->stride);
		886	av_assert0(s->uvlinesize == c->uvstride);
		887
		888	c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
		889	c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
		890	c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
		891	c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
		892
		893	get_limits(s, 16mb_x, 16mb_y);
		894	c->skip=0;
		895
		896	/* intra / predictive decision */
		897	pix = c->src[0][0];
		898	sum = s->dsp.pix_sum(pix, s->linesize);
		899	varc = s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)sum*sum)>>8) + 500;
		900
		901	pic->mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
		902	pic->mb_var [s->mb_stride * mb_y + mb_x] = (varc+128)>>8;
		903	c->mb_var_sum_temp += (varc+128)>>8;
		904
		905	switch(s->me_method) {
		906	case ME_ZERO:
		907	default:
		908	mx = 0;
		909	my = 0;
		910	dmin = 0;
		911	break;
		912	case ME_X1:
		913	case ME_EPZS:
		914	{
		915	const int mot_stride = s->b8_stride;
		916	const int mot_xy = s->block_index[0];
		917
		918	P_LEFT[0] = s->current_picture.motion_val[0][mot_xy - 1][0];
		919	P_LEFT[1] = s->current_picture.motion_val[0][mot_xy - 1][1];
		920
		921	if(P_LEFT[0] > (c->xmax<xmax<
		922
		923	if(!s->first_slice_line) {
		924	P_TOP[0] = s->current_picture.motion_val[0][mot_xy - mot_stride ][0];
		925	P_TOP[1] = s->current_picture.motion_val[0][mot_xy - mot_stride ][1];
		926	P_TOPRIGHT[0] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][0];
		927	P_TOPRIGHT[1] = s->current_picture.motion_val[0][mot_xy - mot_stride + 2][1];
		928	if(P_TOP[1] > (c->ymax<ymax<
		929	if(P_TOPRIGHT[0] < (c->xmin<xmin<
		930	if(P_TOPRIGHT[1] > (c->ymax<ymax<
		931
		932	P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		933	P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		934
		935	if(s->out_format == FMT_H263){
		936	c->pred_x = P_MEDIAN[0];
		937	c->pred_y = P_MEDIAN[1];
		938	}else { /* mpeg1 at least */
		939	c->pred_x= P_LEFT[0];
		940	c->pred_y= P_LEFT[1];
		941	}
		942	}else{
		943	c->pred_x= P_LEFT[0];
		944	c->pred_y= P_LEFT[1];
		945	}
		946
		947	}
		948	dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
		949
		950	break;
		951	}
		952
		953	/* At this point (mx,my) are full-pell and the relative displacement */
		954	ppix = c->ref[0][0] + (my * s->linesize) + mx;
		955
		956	vard = s->dsp.sse[0](NULL, pix, ppix, s->linesize, 16);
		957
		958	pic->mc_mb_var[s->mb_stride * mb_y + mb_x] = (vard+128)>>8;
		959	c->mc_mb_var_sum_temp += (vard+128)>>8;
		960
		961	if(mb_type){
		962	int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
		963	int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
		964	c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
		965
		966	if(mb_type == CANDIDATE_MB_TYPE_INTER){
		967	c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
		968	set_p_mv_tables(s, mx, my, 1);
		969	}else{
		970	mx <<=shift;
		971	my <<=shift;
		972	}
		973	if(mb_type == CANDIDATE_MB_TYPE_INTER4V){
		974	h263_mv4_search(s, mx, my, shift);
		975
		976	set_p_mv_tables(s, mx, my, 0);
		977	}
		978	if(mb_type == CANDIDATE_MB_TYPE_INTER_I){
		979	interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 1);
		980	}
		981	}else if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
		982	int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
		983	int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
		984	c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
		985
		986	if (vard2 + 200256 > varc)
		987	mb_type\|= CANDIDATE_MB_TYPE_INTRA;
		988	if (varc2 + 200256 > vard \|\| s->qscale > 24){
		989	// if (varc2 + 200256 + 50*(s->lambda2>>FF_LAMBDA_SHIFT) > vard){
		990	mb_type\|= CANDIDATE_MB_TYPE_INTER;
		991	c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
		992	if(s->flags&CODEC_FLAG_MV0)
		993	if(mx \|\| my)
		994	mb_type \|= CANDIDATE_MB_TYPE_SKIPPED; //FIXME check difference
		995	}else{
		996	mx <<=shift;
		997	my <<=shift;
		998	}
		999	if((s->flags&CODEC_FLAG_4MV)
		1000	&& !c->skip && varc>50<<8 && vard>10<<8){
		1001	if(h263_mv4_search(s, mx, my, shift) < INT_MAX)
		1002	mb_type\|=CANDIDATE_MB_TYPE_INTER4V;
		1003
		1004	set_p_mv_tables(s, mx, my, 0);
		1005	}else
		1006	set_p_mv_tables(s, mx, my, 1);
		1007	if((s->flags&CODEC_FLAG_INTERLACED_ME)
		1008	&& !c->skip){ //FIXME varc/d checks
		1009	if(interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0) < INT_MAX)
		1010	mb_type \|= CANDIDATE_MB_TYPE_INTER_I;
		1011	}
		1012	}else{
		1013	int intra_score, i;
		1014	mb_type= CANDIDATE_MB_TYPE_INTER;
		1015
		1016	dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
		1017	if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
		1018	dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
		1019
		1020	if((s->flags&CODEC_FLAG_4MV)
		1021	&& !c->skip && varc>50<<8 && vard>10<<8){
		1022	int dmin4= h263_mv4_search(s, mx, my, shift);
		1023	if(dmin4 < dmin){
		1024	mb_type= CANDIDATE_MB_TYPE_INTER4V;
		1025	dmin=dmin4;
		1026	}
		1027	}
		1028	if((s->flags&CODEC_FLAG_INTERLACED_ME)
		1029	&& !c->skip){ //FIXME varc/d checks
		1030	int dmin_i= interlaced_search(s, 0, s->p_field_mv_table, s->p_field_select_table, mx, my, 0);
		1031	if(dmin_i < dmin){
		1032	mb_type = CANDIDATE_MB_TYPE_INTER_I;
		1033	dmin= dmin_i;
		1034	}
		1035	}
		1036
		1037	set_p_mv_tables(s, mx, my, mb_type!=CANDIDATE_MB_TYPE_INTER4V);
		1038
		1039	/* get intra luma score */
		1040	if((c->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
		1041	intra_score= varc - 500;
		1042	}else{
		1043	unsigned mean = (sum+128)>>8;
		1044	mean*= 0x01010101;
		1045
		1046	for(i=0; i<16; i++){
		1047	(uint32_t)(&c->scratchpad[i*s->linesize+ 0]) = mean;
		1048	(uint32_t)(&c->scratchpad[i*s->linesize+ 4]) = mean;
		1049	(uint32_t)(&c->scratchpad[i*s->linesize+ 8]) = mean;
		1050	(uint32_t)(&c->scratchpad[i*s->linesize+12]) = mean;
		1051	}
		1052
		1053	intra_score= s->dsp.mb_cmp[0](s, c->scratchpad, pix, s->linesize, 16);
		1054	}
		1055	intra_score += c->mb_penalty_factor*16;
		1056
		1057	if(intra_score < dmin){
		1058	mb_type= CANDIDATE_MB_TYPE_INTRA;
		1059	s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = CANDIDATE_MB_TYPE_INTRA; //FIXME cleanup
		1060	}else
		1061	s->current_picture.mb_type[mb_y*s->mb_stride + mb_x] = 0;
		1062
		1063	{
		1064	int p_score= FFMIN(vard, varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*100);
		1065	int i_score= varc-500+(s->lambda2>>FF_LAMBDA_SHIFT)*20;
		1066	c->scene_change_score+= ff_sqrt(p_score) - ff_sqrt(i_score);
		1067	}
		1068	}
		1069
		1070	s->mb_type[mb_y*s->mb_stride + mb_x]= mb_type;
		1071	}
		1072
		1073	int ff_pre_estimate_p_frame_motion(MpegEncContext * s,
		1074	int mb_x, int mb_y)
		1075	{
		1076	MotionEstContext * const c= &s->me;
		1077	int mx, my, dmin;
		1078	int P[10][2];
		1079	const int shift= 1+s->quarter_sample;
		1080	const int xy= mb_x + mb_y*s->mb_stride;
		1081	init_ref(c, s->new_picture.f.data, s->last_picture.f.data, NULL, 16mb_x, 16mb_y, 0);
		1082
		1083	av_assert0(s->quarter_sample==0 \|\| s->quarter_sample==1);
		1084
		1085	c->pre_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_pre_cmp);
		1086	c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
		1087
		1088	get_limits(s, 16mb_x, 16mb_y);
		1089	c->skip=0;
		1090
		1091	P_LEFT[0] = s->p_mv_table[xy + 1][0];
		1092	P_LEFT[1] = s->p_mv_table[xy + 1][1];
		1093
		1094	if(P_LEFT[0] < (c->xmin<xmin<
		1095
		1096	/* special case for first line */
		1097	if (s->first_slice_line) {
		1098	c->pred_x= P_LEFT[0];
		1099	c->pred_y= P_LEFT[1];
		1100	P_TOP[0]= P_TOPRIGHT[0]= P_MEDIAN[0]=
		1101	P_TOP[1]= P_TOPRIGHT[1]= P_MEDIAN[1]= 0; //FIXME
		1102	} else {
		1103	P_TOP[0] = s->p_mv_table[xy + s->mb_stride ][0];
		1104	P_TOP[1] = s->p_mv_table[xy + s->mb_stride ][1];
		1105	P_TOPRIGHT[0] = s->p_mv_table[xy + s->mb_stride - 1][0];
		1106	P_TOPRIGHT[1] = s->p_mv_table[xy + s->mb_stride - 1][1];
		1107	if(P_TOP[1] < (c->ymin<ymin<
		1108	if(P_TOPRIGHT[0] > (c->xmax<xmax<
		1109	if(P_TOPRIGHT[1] < (c->ymin<ymin<
		1110
		1111	P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		1112	P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		1113
		1114	c->pred_x = P_MEDIAN[0];
		1115	c->pred_y = P_MEDIAN[1];
		1116	}
		1117
		1118	dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, s->p_mv_table, (1<<16)>>shift, 0, 16);
		1119
		1120	s->p_mv_table[xy][0] = mx<
		1121	s->p_mv_table[xy][1] = my<
		1122
		1123	return dmin;
		1124	}
		1125
		1126	static int estimate_motion_b(MpegEncContext *s, int mb_x, int mb_y,
		1127	int16_t (*mv_table)[2], int ref_index, int f_code)
		1128	{
		1129	MotionEstContext * const c= &s->me;
		1130	int mx, my, dmin;
		1131	int P[10][2];
		1132	const int shift= 1+s->quarter_sample;
		1133	const int mot_stride = s->mb_stride;
		1134	const int mot_xy = mb_y*mot_stride + mb_x;
		1135	uint8_t * const mv_penalty= c->mv_penalty[f_code] + MAX_MV;
		1136	int mv_scale;
		1137
		1138	c->penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_cmp);
		1139	c->sub_penalty_factor= get_penalty_factor(s->lambda, s->lambda2, c->avctx->me_sub_cmp);
		1140	c->mb_penalty_factor = get_penalty_factor(s->lambda, s->lambda2, c->avctx->mb_cmp);
		1141	c->current_mv_penalty= mv_penalty;
		1142
		1143	get_limits(s, 16mb_x, 16mb_y);
		1144
		1145	switch(s->me_method) {
		1146	case ME_ZERO:
		1147	default:
		1148	mx = 0;
		1149	my = 0;
		1150	dmin = 0;
		1151	break;
		1152	case ME_X1:
		1153	case ME_EPZS:
		1154	P_LEFT[0] = mv_table[mot_xy - 1][0];
		1155	P_LEFT[1] = mv_table[mot_xy - 1][1];
		1156
		1157	if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);
		1158
		1159	/* special case for first line */
		1160	if (!s->first_slice_line) {
		1161	P_TOP[0] = mv_table[mot_xy - mot_stride ][0];
		1162	P_TOP[1] = mv_table[mot_xy - mot_stride ][1];
		1163	P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];
		1164	P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];
		1165	if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);
		1166	if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);
		1167	if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);
		1168
		1169	P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		1170	P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		1171	}
		1172	c->pred_x = P_LEFT[0];
		1173	c->pred_y = P_LEFT[1];
		1174
		1175	if(mv_table == s->b_forw_mv_table){
		1176	mv_scale= (s->pb_time<<16) / (s->pp_time<
		1177	}else{
		1178	mv_scale= ((s->pb_time - s->pp_time)<<16) / (s->pp_time<
		1179	}
		1180
		1181	dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, ref_index, s->p_mv_table, mv_scale, 0, 16);
		1182
		1183	break;
		1184	}
		1185
		1186	dmin= c->sub_motion_search(s, &mx, &my, dmin, 0, ref_index, 0, 16);
		1187
		1188	if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
		1189	dmin= get_mb_score(s, mx, my, 0, ref_index, 0, 16, 1);
		1190
		1191	// s->mb_type[mb_y*s->mb_width + mb_x]= mb_type;
		1192	mv_table[mot_xy][0]= mx;
		1193	mv_table[mot_xy][1]= my;
		1194
		1195	return dmin;
		1196	}
		1197
		1198	static inline int check_bidir_mv(MpegEncContext * s,
		1199	int motion_fx, int motion_fy,
		1200	int motion_bx, int motion_by,
		1201	int pred_fx, int pred_fy,
		1202	int pred_bx, int pred_by,
		1203	int size, int h)
		1204	{
		1205	//FIXME optimize?
		1206	//FIXME better f_code prediction (max mv & distance)
		1207	//FIXME pointers
		1208	MotionEstContext * const c= &s->me;
		1209	uint8_t * const mv_penalty_f= c->mv_penalty[s->f_code] + MAX_MV; // f_code of the prev frame
		1210	uint8_t * const mv_penalty_b= c->mv_penalty[s->b_code] + MAX_MV; // f_code of the prev frame
		1211	int stride= c->stride;
		1212	uint8_t *dest_y = c->scratchpad;
		1213	uint8_t *ptr;
		1214	int dxy;
		1215	int src_x, src_y;
		1216	int fbmin;
		1217	uint8_t **src_data= c->src[0];
		1218	uint8_t **ref_data= c->ref[0];
		1219	uint8_t **ref2_data= c->ref[2];
		1220
		1221	if(s->quarter_sample){
		1222	dxy = ((motion_fy & 3) << 2) \| (motion_fx & 3);
		1223	src_x = motion_fx >> 2;
		1224	src_y = motion_fy >> 2;
		1225
		1226	ptr = ref_data[0] + (src_y * stride) + src_x;
		1227	s->dsp.put_qpel_pixels_tab[0][dxy](dest_y , ptr , stride);
		1228
		1229	dxy = ((motion_by & 3) << 2) \| (motion_bx & 3);
		1230	src_x = motion_bx >> 2;
		1231	src_y = motion_by >> 2;
		1232
		1233	ptr = ref2_data[0] + (src_y * stride) + src_x;
		1234	s->dsp.avg_qpel_pixels_tab[size][dxy](dest_y , ptr , stride);
		1235	}else{
		1236	dxy = ((motion_fy & 1) << 1) \| (motion_fx & 1);
		1237	src_x = motion_fx >> 1;
		1238	src_y = motion_fy >> 1;
		1239
		1240	ptr = ref_data[0] + (src_y * stride) + src_x;
		1241	s->hdsp.put_pixels_tab[size][dxy](dest_y , ptr , stride, h);
		1242
		1243	dxy = ((motion_by & 1) << 1) \| (motion_bx & 1);
		1244	src_x = motion_bx >> 1;
		1245	src_y = motion_by >> 1;
		1246
		1247	ptr = ref2_data[0] + (src_y * stride) + src_x;
		1248	s->hdsp.avg_pixels_tab[size][dxy](dest_y , ptr , stride, h);
		1249	}
		1250
		1251	fbmin = (mv_penalty_f[motion_fx-pred_fx] + mv_penalty_f[motion_fy-pred_fy])*c->mb_penalty_factor
		1252	+(mv_penalty_b[motion_bx-pred_bx] + mv_penalty_b[motion_by-pred_by])*c->mb_penalty_factor
		1253	+ s->dsp.mb_cmp[size](s, src_data[0], dest_y, stride, h); //FIXME new_pic
		1254
		1255	if(c->avctx->mb_cmp&FF_CMP_CHROMA){
		1256	}
		1257	//FIXME CHROMA !!!
		1258
		1259	return fbmin;
		1260	}
		1261
		1262	/* refine the bidir vectors in hq mode and return the score in both lq & hq mode*/
		1263	static inline int bidir_refine(MpegEncContext * s, int mb_x, int mb_y)
		1264	{
		1265	MotionEstContext * const c= &s->me;
		1266	const int mot_stride = s->mb_stride;
		1267	const int xy = mb_y *mot_stride + mb_x;
		1268	int fbmin;
		1269	int pred_fx= s->b_bidir_forw_mv_table[xy-1][0];
		1270	int pred_fy= s->b_bidir_forw_mv_table[xy-1][1];
		1271	int pred_bx= s->b_bidir_back_mv_table[xy-1][0];
		1272	int pred_by= s->b_bidir_back_mv_table[xy-1][1];
		1273	int motion_fx= s->b_bidir_forw_mv_table[xy][0]= s->b_forw_mv_table[xy][0];
		1274	int motion_fy= s->b_bidir_forw_mv_table[xy][1]= s->b_forw_mv_table[xy][1];
		1275	int motion_bx= s->b_bidir_back_mv_table[xy][0]= s->b_back_mv_table[xy][0];
		1276	int motion_by= s->b_bidir_back_mv_table[xy][1]= s->b_back_mv_table[xy][1];
		1277	const int flags= c->sub_flags;
		1278	const int qpel= flags&FLAG_QPEL;
		1279	const int shift= 1+qpel;
		1280	const int xmin= c->xmin<
		1281	const int ymin= c->ymin<
		1282	const int xmax= c->xmax<
		1283	const int ymax= c->ymax<
		1284	#define HASH(fx,fy,bx,by) ((fx)+17(fy)+63(bx)+117*(by))
		1285	#define HASH8(fx,fy,bx,by) ((uint8_t)HASH(fx,fy,bx,by))
		1286	int hashidx= HASH(motion_fx,motion_fy, motion_bx, motion_by);
		1287	uint8_t map[256] = { 0 };
		1288
		1289	map[hashidx&255] = 1;
		1290
		1291	fbmin= check_bidir_mv(s, motion_fx, motion_fy,
		1292	motion_bx, motion_by,
		1293	pred_fx, pred_fy,
		1294	pred_bx, pred_by,
		1295	0, 16);
		1296
		1297	if(s->avctx->bidir_refine){
		1298	int end;
		1299	static const uint8_t limittab[5]={0,8,32,64,80};
		1300	const int limit= limittab[s->avctx->bidir_refine];
		1301	static const int8_t vect[][4]={
		1302	{ 0, 0, 0, 1}, { 0, 0, 0,-1}, { 0, 0, 1, 0}, { 0, 0,-1, 0}, { 0, 1, 0, 0}, { 0,-1, 0, 0}, { 1, 0, 0, 0}, {-1, 0, 0, 0},
		1303
		1304	{ 0, 0, 1, 1}, { 0, 0,-1,-1}, { 0, 1, 1, 0}, { 0,-1,-1, 0}, { 1, 1, 0, 0}, {-1,-1, 0, 0}, { 1, 0, 0, 1}, {-1, 0, 0,-1},
		1305	{ 0, 1, 0, 1}, { 0,-1, 0,-1}, { 1, 0, 1, 0}, {-1, 0,-1, 0},
		1306	{ 0, 0,-1, 1}, { 0, 0, 1,-1}, { 0,-1, 1, 0}, { 0, 1,-1, 0}, {-1, 1, 0, 0}, { 1,-1, 0, 0}, { 1, 0, 0,-1}, {-1, 0, 0, 1},
		1307	{ 0,-1, 0, 1}, { 0, 1, 0,-1}, {-1, 0, 1, 0}, { 1, 0,-1, 0},
		1308
		1309	{ 0, 1, 1, 1}, { 0,-1,-1,-1}, { 1, 1, 1, 0}, {-1,-1,-1, 0}, { 1, 1, 0, 1}, {-1,-1, 0,-1}, { 1, 0, 1, 1}, {-1, 0,-1,-1},
		1310	{ 0,-1, 1, 1}, { 0, 1,-1,-1}, {-1, 1, 1, 0}, { 1,-1,-1, 0}, { 1, 1, 0,-1}, {-1,-1, 0, 1}, { 1, 0,-1, 1}, {-1, 0, 1,-1},
		1311	{ 0, 1,-1, 1}, { 0,-1, 1,-1}, { 1,-1, 1, 0}, {-1, 1,-1, 0}, {-1, 1, 0, 1}, { 1,-1, 0,-1}, { 1, 0, 1,-1}, {-1, 0,-1, 1},
		1312	{ 0, 1, 1,-1}, { 0,-1,-1, 1}, { 1, 1,-1, 0}, {-1,-1, 1, 0}, { 1,-1, 0, 1}, {-1, 1, 0,-1}, {-1, 0, 1, 1}, { 1, 0,-1,-1},
		1313
		1314	{ 1, 1, 1, 1}, {-1,-1,-1,-1},
		1315	{ 1, 1, 1,-1}, {-1,-1,-1, 1}, { 1, 1,-1, 1}, {-1,-1, 1,-1}, { 1,-1, 1, 1}, {-1, 1,-1,-1}, {-1, 1, 1, 1}, { 1,-1,-1,-1},
		1316	{ 1, 1,-1,-1}, {-1,-1, 1, 1}, { 1,-1,-1, 1}, {-1, 1, 1,-1}, { 1,-1, 1,-1}, {-1, 1,-1, 1},
		1317	};
		1318	static const uint8_t hash[]={
		1319	HASH8( 0, 0, 0, 1), HASH8( 0, 0, 0,-1), HASH8( 0, 0, 1, 0), HASH8( 0, 0,-1, 0), HASH8( 0, 1, 0, 0), HASH8( 0,-1, 0, 0), HASH8( 1, 0, 0, 0), HASH8(-1, 0, 0, 0),
		1320
		1321	HASH8( 0, 0, 1, 1), HASH8( 0, 0,-1,-1), HASH8( 0, 1, 1, 0), HASH8( 0,-1,-1, 0), HASH8( 1, 1, 0, 0), HASH8(-1,-1, 0, 0), HASH8( 1, 0, 0, 1), HASH8(-1, 0, 0,-1),
		1322	HASH8( 0, 1, 0, 1), HASH8( 0,-1, 0,-1), HASH8( 1, 0, 1, 0), HASH8(-1, 0,-1, 0),
		1323	HASH8( 0, 0,-1, 1), HASH8( 0, 0, 1,-1), HASH8( 0,-1, 1, 0), HASH8( 0, 1,-1, 0), HASH8(-1, 1, 0, 0), HASH8( 1,-1, 0, 0), HASH8( 1, 0, 0,-1), HASH8(-1, 0, 0, 1),
		1324	HASH8( 0,-1, 0, 1), HASH8( 0, 1, 0,-1), HASH8(-1, 0, 1, 0), HASH8( 1, 0,-1, 0),
		1325
		1326	HASH8( 0, 1, 1, 1), HASH8( 0,-1,-1,-1), HASH8( 1, 1, 1, 0), HASH8(-1,-1,-1, 0), HASH8( 1, 1, 0, 1), HASH8(-1,-1, 0,-1), HASH8( 1, 0, 1, 1), HASH8(-1, 0,-1,-1),
		1327	HASH8( 0,-1, 1, 1), HASH8( 0, 1,-1,-1), HASH8(-1, 1, 1, 0), HASH8( 1,-1,-1, 0), HASH8( 1, 1, 0,-1), HASH8(-1,-1, 0, 1), HASH8( 1, 0,-1, 1), HASH8(-1, 0, 1,-1),
		1328	HASH8( 0, 1,-1, 1), HASH8( 0,-1, 1,-1), HASH8( 1,-1, 1, 0), HASH8(-1, 1,-1, 0), HASH8(-1, 1, 0, 1), HASH8( 1,-1, 0,-1), HASH8( 1, 0, 1,-1), HASH8(-1, 0,-1, 1),
		1329	HASH8( 0, 1, 1,-1), HASH8( 0,-1,-1, 1), HASH8( 1, 1,-1, 0), HASH8(-1,-1, 1, 0), HASH8( 1,-1, 0, 1), HASH8(-1, 1, 0,-1), HASH8(-1, 0, 1, 1), HASH8( 1, 0,-1,-1),
		1330
		1331	HASH8( 1, 1, 1, 1), HASH8(-1,-1,-1,-1),
		1332	HASH8( 1, 1, 1,-1), HASH8(-1,-1,-1, 1), HASH8( 1, 1,-1, 1), HASH8(-1,-1, 1,-1), HASH8( 1,-1, 1, 1), HASH8(-1, 1,-1,-1), HASH8(-1, 1, 1, 1), HASH8( 1,-1,-1,-1),
		1333	HASH8( 1, 1,-1,-1), HASH8(-1,-1, 1, 1), HASH8( 1,-1,-1, 1), HASH8(-1, 1, 1,-1), HASH8( 1,-1, 1,-1), HASH8(-1, 1,-1, 1),
		1334	};
		1335
		1336	#define CHECK_BIDIR(fx,fy,bx,by)\
		1337	if( !map[(hashidx+HASH(fx,fy,bx,by))&255]\
		1338	&&(fx<=0 \|\| motion_fx+fx<=xmax) && (fy<=0 \|\| motion_fy+fy<=ymax) && (bx<=0 \|\| motion_bx+bx<=xmax) && (by<=0 \|\| motion_by+by<=ymax)\
		1339	&&(fx>=0 \|\| motion_fx+fx>=xmin) && (fy>=0 \|\| motion_fy+fy>=ymin) && (bx>=0 \|\| motion_bx+bx>=xmin) && (by>=0 \|\| motion_by+by>=ymin)){\
		1340	int score;\
		1341	map[(hashidx+HASH(fx,fy,bx,by))&255] = 1;\
		1342	score= check_bidir_mv(s, motion_fx+fx, motion_fy+fy, motion_bx+bx, motion_by+by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);\
		1343	if(score < fbmin){\
		1344	hashidx += HASH(fx,fy,bx,by);\
		1345	fbmin= score;\
		1346	motion_fx+=fx;\
		1347	motion_fy+=fy;\
		1348	motion_bx+=bx;\
		1349	motion_by+=by;\
		1350	end=0;\
		1351	}\
		1352	}
		1353	#define CHECK_BIDIR2(a,b,c,d)\
		1354	CHECK_BIDIR(a,b,c,d)\
		1355	CHECK_BIDIR(-(a),-(b),-(c),-(d))
		1356
		1357	do{
		1358	int i;
		1359	int borderdist=0;
		1360	end=1;
		1361
		1362	CHECK_BIDIR2(0,0,0,1)
		1363	CHECK_BIDIR2(0,0,1,0)
		1364	CHECK_BIDIR2(0,1,0,0)
		1365	CHECK_BIDIR2(1,0,0,0)
		1366
		1367	for(i=8; i
		1368	int fx= motion_fx+vect[i][0];
		1369	int fy= motion_fy+vect[i][1];
		1370	int bx= motion_bx+vect[i][2];
		1371	int by= motion_by+vect[i][3];
		1372	if(borderdist<=0){
		1373	int a= (xmax - FFMAX(fx,bx))\|(FFMIN(fx,bx) - xmin);
		1374	int b= (ymax - FFMAX(fy,by))\|(FFMIN(fy,by) - ymin);
		1375	if((a\|b) < 0)
		1376	map[(hashidx+hash[i])&255] = 1;
		1377	}
		1378	if(!map[(hashidx+hash[i])&255]){
		1379	int score;
		1380	map[(hashidx+hash[i])&255] = 1;
		1381	score= check_bidir_mv(s, fx, fy, bx, by, pred_fx, pred_fy, pred_bx, pred_by, 0, 16);
		1382	if(score < fbmin){
		1383	hashidx += hash[i];
		1384	fbmin= score;
		1385	motion_fx=fx;
		1386	motion_fy=fy;
		1387	motion_bx=bx;
		1388	motion_by=by;
		1389	end=0;
		1390	borderdist--;
		1391	if(borderdist<=0){
		1392	int a= FFMIN(xmax - FFMAX(fx,bx), FFMIN(fx,bx) - xmin);
		1393	int b= FFMIN(ymax - FFMAX(fy,by), FFMIN(fy,by) - ymin);
		1394	borderdist= FFMIN(a,b);
		1395	}
		1396	}
		1397	}
		1398	}
		1399	}while(!end);
		1400	}
		1401
		1402	s->b_bidir_forw_mv_table[xy][0]= motion_fx;
		1403	s->b_bidir_forw_mv_table[xy][1]= motion_fy;
		1404	s->b_bidir_back_mv_table[xy][0]= motion_bx;
		1405	s->b_bidir_back_mv_table[xy][1]= motion_by;
		1406
		1407	return fbmin;
		1408	}
		1409
		1410	static inline int direct_search(MpegEncContext * s, int mb_x, int mb_y)
		1411	{
		1412	MotionEstContext * const c= &s->me;
		1413	int P[10][2];
		1414	const int mot_stride = s->mb_stride;
		1415	const int mot_xy = mb_y*mot_stride + mb_x;
		1416	const int shift= 1+s->quarter_sample;
		1417	int dmin, i;
		1418	const int time_pp= s->pp_time;
		1419	const int time_pb= s->pb_time;
		1420	int mx, my, xmin, xmax, ymin, ymax;
		1421	int16_t (*mv_table)[2]= s->b_direct_mv_table;
		1422
		1423	c->current_mv_penalty= c->mv_penalty[1] + MAX_MV;
		1424	ymin= xmin=(-32)>>shift;
		1425	ymax= xmax= 31>>shift;
		1426
		1427	if (IS_8X8(s->next_picture.mb_type[mot_xy])) {
		1428	s->mv_type= MV_TYPE_8X8;
		1429	}else{
		1430	s->mv_type= MV_TYPE_16X16;
		1431	}
		1432
		1433	for(i=0; i<4; i++){
		1434	int index= s->block_index[i];
		1435	int min, max;
		1436
		1437	c->co_located_mv[i][0] = s->next_picture.motion_val[0][index][0];
		1438	c->co_located_mv[i][1] = s->next_picture.motion_val[0][index][1];
		1439	c->direct_basis_mv[i][0]= c->co_located_mv[i][0]*time_pb/time_pp + ((i& 1)<<(shift+3));
		1440	c->direct_basis_mv[i][1]= c->co_located_mv[i][1]*time_pb/time_pp + ((i>>1)<<(shift+3));
		1441	// c->direct_basis_mv[1][i][0]= c->co_located_mv[i][0]*(time_pb - time_pp)/time_pp + ((i &1)<<(shift+3);
		1442	// c->direct_basis_mv[1][i][1]= c->co_located_mv[i][1]*(time_pb - time_pp)/time_pp + ((i>>1)<<(shift+3);
		1443
		1444	max= FFMAX(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
		1445	min= FFMIN(c->direct_basis_mv[i][0], c->direct_basis_mv[i][0] - c->co_located_mv[i][0])>>shift;
		1446	max+= 16*mb_x + 1; // +-1 is for the simpler rounding
		1447	min+= 16*mb_x - 1;
		1448	xmax= FFMIN(xmax, s->width - max);
		1449	xmin= FFMAX(xmin, - 16 - min);
		1450
		1451	max= FFMAX(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
		1452	min= FFMIN(c->direct_basis_mv[i][1], c->direct_basis_mv[i][1] - c->co_located_mv[i][1])>>shift;
		1453	max+= 16*mb_y + 1; // +-1 is for the simpler rounding
		1454	min+= 16*mb_y - 1;
		1455	ymax= FFMIN(ymax, s->height - max);
		1456	ymin= FFMAX(ymin, - 16 - min);
		1457
		1458	if(s->mv_type == MV_TYPE_16X16) break;
		1459	}
		1460
		1461	av_assert2(xmax <= 15 && ymax <= 15 && xmin >= -16 && ymin >= -16);
		1462
		1463	if(xmax < 0 \|\| xmin >0 \|\| ymax < 0 \|\| ymin > 0){
		1464	s->b_direct_mv_table[mot_xy][0]= 0;
		1465	s->b_direct_mv_table[mot_xy][1]= 0;
		1466
		1467	return 256256256*64;
		1468	}
		1469
		1470	c->xmin= xmin;
		1471	c->ymin= ymin;
		1472	c->xmax= xmax;
		1473	c->ymax= ymax;
		1474	c->flags \|= FLAG_DIRECT;
		1475	c->sub_flags \|= FLAG_DIRECT;
		1476	c->pred_x=0;
		1477	c->pred_y=0;
		1478
		1479	P_LEFT[0] = av_clip(mv_table[mot_xy - 1][0], xmin<
		1480	P_LEFT[1] = av_clip(mv_table[mot_xy - 1][1], ymin<
		1481
		1482	/* special case for first line */
		1483	if (!s->first_slice_line) { //FIXME maybe allow this over thread boundary as it is clipped
		1484	P_TOP[0] = av_clip(mv_table[mot_xy - mot_stride ][0], xmin<
		1485	P_TOP[1] = av_clip(mv_table[mot_xy - mot_stride ][1], ymin<
		1486	P_TOPRIGHT[0] = av_clip(mv_table[mot_xy - mot_stride + 1 ][0], xmin<
		1487	P_TOPRIGHT[1] = av_clip(mv_table[mot_xy - mot_stride + 1 ][1], ymin<
		1488
		1489	P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
		1490	P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
		1491	}
		1492
		1493	dmin = ff_epzs_motion_search(s, &mx, &my, P, 0, 0, mv_table, 1<<(16-shift), 0, 16);
		1494	if(c->sub_flags&FLAG_QPEL)
		1495	dmin = qpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
		1496	else
		1497	dmin = hpel_motion_search(s, &mx, &my, dmin, 0, 0, 0, 16);
		1498
		1499	if(c->avctx->me_sub_cmp != c->avctx->mb_cmp && !c->skip)
		1500	dmin= get_mb_score(s, mx, my, 0, 0, 0, 16, 1);
		1501
		1502	get_limits(s, 16mb_x, 16mb_y); //restore c->?min/max, maybe not needed
		1503
		1504	mv_table[mot_xy][0]= mx;
		1505	mv_table[mot_xy][1]= my;
		1506	c->flags &= ~FLAG_DIRECT;
		1507	c->sub_flags &= ~FLAG_DIRECT;
		1508
		1509	return dmin;
		1510	}
		1511
		1512	void ff_estimate_b_frame_motion(MpegEncContext * s,
		1513	int mb_x, int mb_y)
		1514	{
		1515	MotionEstContext * const c= &s->me;
		1516	const int penalty_factor= c->mb_penalty_factor;
		1517	int fmin, bmin, dmin, fbmin, bimin, fimin;
		1518	int type=0;
		1519	const int xy = mb_y*s->mb_stride + mb_x;
		1520	init_ref(c, s->new_picture.f.data, s->last_picture.f.data,
		1521	s->next_picture.f.data, 16 * mb_x, 16 * mb_y, 2);
		1522
		1523	get_limits(s, 16mb_x, 16mb_y);
		1524
		1525	c->skip=0;
		1526
		1527	if (s->codec_id == AV_CODEC_ID_MPEG4 && s->next_picture.mbskip_table[xy]) {
		1528	int score= direct_search(s, mb_x, mb_y); //FIXME just check 0,0
		1529
		1530	score= ((unsigned)(scorescore + 128256))>>16;
		1531	c->mc_mb_var_sum_temp += score;
		1532	s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
		1533	s->mb_type[mb_y*s->mb_stride + mb_x]= CANDIDATE_MB_TYPE_DIRECT0;
		1534
		1535	return;
		1536	}
		1537
		1538	if (s->codec_id == AV_CODEC_ID_MPEG4)
		1539	dmin= direct_search(s, mb_x, mb_y);
		1540	else
		1541	dmin= INT_MAX;
		1542	//FIXME penalty stuff for non mpeg4
		1543	c->skip=0;
		1544	fmin = estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) +
		1545	3 * penalty_factor;
		1546
		1547	c->skip=0;
		1548	bmin = estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) +
		1549	2 * penalty_factor;
		1550	av_dlog(s, " %d %d ", s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1]);
		1551
		1552	c->skip=0;
		1553	fbmin= bidir_refine(s, mb_x, mb_y) + penalty_factor;
		1554	av_dlog(s, "%d %d %d %d\n", dmin, fmin, bmin, fbmin);
		1555
		1556	if(s->flags & CODEC_FLAG_INTERLACED_ME){
		1557	//FIXME mb type penalty
		1558	c->skip=0;
		1559	c->current_mv_penalty= c->mv_penalty[s->f_code] + MAX_MV;
		1560	fimin= interlaced_search(s, 0,
		1561	s->b_field_mv_table[0], s->b_field_select_table[0],
		1562	s->b_forw_mv_table[xy][0], s->b_forw_mv_table[xy][1], 0);
		1563	c->current_mv_penalty= c->mv_penalty[s->b_code] + MAX_MV;
		1564	bimin= interlaced_search(s, 2,
		1565	s->b_field_mv_table[1], s->b_field_select_table[1],
		1566	s->b_back_mv_table[xy][0], s->b_back_mv_table[xy][1], 0);
		1567	}else
		1568	fimin= bimin= INT_MAX;
		1569
		1570	{
		1571	int score= fmin;
		1572	type = CANDIDATE_MB_TYPE_FORWARD;
		1573
		1574	if (dmin <= score){
		1575	score = dmin;
		1576	type = CANDIDATE_MB_TYPE_DIRECT;
		1577	}
		1578	if(bmin
		1579	score=bmin;
		1580	type= CANDIDATE_MB_TYPE_BACKWARD;
		1581	}
		1582	if(fbmin
		1583	score=fbmin;
		1584	type= CANDIDATE_MB_TYPE_BIDIR;
		1585	}
		1586	if(fimin
		1587	score=fimin;
		1588	type= CANDIDATE_MB_TYPE_FORWARD_I;
		1589	}
		1590	if(bimin
		1591	score=bimin;
		1592	type= CANDIDATE_MB_TYPE_BACKWARD_I;
		1593	}
		1594
		1595	score= ((unsigned)(scorescore + 128256))>>16;
		1596	c->mc_mb_var_sum_temp += score;
		1597	s->current_picture.mc_mb_var[mb_y*s->mb_stride + mb_x] = score; //FIXME use SSE
		1598	}
		1599
		1600	if(c->avctx->mb_decision > FF_MB_DECISION_SIMPLE){
		1601	type= CANDIDATE_MB_TYPE_FORWARD \| CANDIDATE_MB_TYPE_BACKWARD \| CANDIDATE_MB_TYPE_BIDIR \| CANDIDATE_MB_TYPE_DIRECT;
		1602	if(fimin < INT_MAX)
		1603	type \|= CANDIDATE_MB_TYPE_FORWARD_I;
		1604	if(bimin < INT_MAX)
		1605	type \|= CANDIDATE_MB_TYPE_BACKWARD_I;
		1606	if(fimin < INT_MAX && bimin < INT_MAX){
		1607	type \|= CANDIDATE_MB_TYPE_BIDIR_I;
		1608	}
		1609	//FIXME something smarter
		1610	if(dmin>25625616) type&= ~CANDIDATE_MB_TYPE_DIRECT; //do not try direct mode if it is invalid for this MB
		1611	if(s->codec_id == AV_CODEC_ID_MPEG4 && type&CANDIDATE_MB_TYPE_DIRECT && s->flags&CODEC_FLAG_MV0 && (uint32_t)s->b_direct_mv_table[xy])
		1612	type \|= CANDIDATE_MB_TYPE_DIRECT0;
		1613	}
		1614
		1615	s->mb_type[mb_y*s->mb_stride + mb_x]= type;
		1616	}
		1617
		1618	/* find best f_code for ME which do unlimited searches */
		1619	int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
		1620	{
		1621	if(s->me_method>=ME_EPZS){
		1622	int score[8];
		1623	int i, y, range= s->avctx->me_range ? s->avctx->me_range : (INT_MAX/2);
		1624	uint8_t * fcode_tab= s->fcode_tab;
		1625	int best_fcode=-1;
		1626	int best_score=-10000000;
		1627
		1628	if(s->msmpeg4_version)
		1629	range= FFMIN(range, 16);
		1630	else if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL)
		1631	range= FFMIN(range, 256);
		1632
		1633	for(i=0; i<8; i++) score[i]= s->mb_num*(8-i);
		1634
		1635	for(y=0; ymb_height; y++){
		1636	int x;
		1637	int xy= y*s->mb_stride;
		1638	for(x=0; xmb_width; x++){
		1639	if(s->mb_type[xy] & type){
		1640	int mx= mv_table[xy][0];
		1641	int my= mv_table[xy][1];
		1642	int fcode= FFMAX(fcode_tab[mx + MAX_MV],
		1643	fcode_tab[my + MAX_MV]);
		1644	int j;
		1645
		1646	if(mx >= range \|\| mx < -range \|\|
		1647	my >= range \|\| my < -range)
		1648	continue;
		1649
		1650	for(j=0; j
		1651	if(s->pict_type==AV_PICTURE_TYPE_B \|\| s->current_picture.mc_mb_var[xy] < s->current_picture.mb_var[xy])
		1652	score[j]-= 170;
		1653	}
		1654	}
		1655	xy++;
		1656	}
		1657	}
		1658
		1659	for(i=1; i<8; i++){
		1660	if(score[i] > best_score){
		1661	best_score= score[i];
		1662	best_fcode= i;
		1663	}
		1664	}
		1665
		1666	return best_fcode;
		1667	}else{
		1668	return 1;
		1669	}
		1670	}
		1671
		1672	void ff_fix_long_p_mvs(MpegEncContext * s)
		1673	{
		1674	MotionEstContext * const c= &s->me;
		1675	const int f_code= s->f_code;
		1676	int y, range;
		1677	av_assert0(s->pict_type==AV_PICTURE_TYPE_P);
		1678
		1679	range = (((s->out_format == FMT_MPEG1 \|\| s->msmpeg4_version) ? 8 : 16) << f_code);
		1680
		1681	av_assert0(range <= 16 \|\| !s->msmpeg4_version);
		1682	av_assert0(range <=256 \|\| !(s->codec_id == AV_CODEC_ID_MPEG2VIDEO && s->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL));
		1683
		1684	if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
		1685
		1686	if(s->flags&CODEC_FLAG_4MV){
		1687	const int wrap= s->b8_stride;
		1688
		1689	/* clip / convert to intra 8x8 type MVs */
		1690	for(y=0; ymb_height; y++){
		1691	int xy= y2wrap;
		1692	int i= y*s->mb_stride;
		1693	int x;
		1694
		1695	for(x=0; xmb_width; x++){
		1696	if(s->mb_type[i]&CANDIDATE_MB_TYPE_INTER4V){
		1697	int block;
		1698	for(block=0; block<4; block++){
		1699	int off= (block& 1) + (block>>1)*wrap;
		1700	int mx = s->current_picture.motion_val[0][ xy + off ][0];
		1701	int my = s->current_picture.motion_val[0][ xy + off ][1];
		1702
		1703	if( mx >=range \|\| mx <-range
		1704	\|\| my >=range \|\| my <-range){
		1705	s->mb_type[i] &= ~CANDIDATE_MB_TYPE_INTER4V;
		1706	s->mb_type[i] \|= CANDIDATE_MB_TYPE_INTRA;
		1707	s->current_picture.mb_type[i] = CANDIDATE_MB_TYPE_INTRA;
		1708	}
		1709	}
		1710	}
		1711	xy+=2;
		1712	i++;
		1713	}
		1714	}
		1715	}
		1716	}
		1717
		1718	/**
		1719	*
		1720	* @param truncate 1 for truncation, 0 for using intra
		1721	*/
		1722	void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
		1723	int16_t (*mv_table)[2], int f_code, int type, int truncate)
		1724	{
		1725	MotionEstContext * const c= &s->me;
		1726	int y, h_range, v_range;
		1727
		1728	// RAL: 8 in MPEG-1, 16 in MPEG-4
		1729	int range = (((s->out_format == FMT_MPEG1 \|\| s->msmpeg4_version) ? 8 : 16) << f_code);
		1730
		1731	if(c->avctx->me_range && range > c->avctx->me_range) range= c->avctx->me_range;
		1732
		1733	h_range= range;
		1734	v_range= field_select_table ? range>>1 : range;
		1735
		1736	/* clip / convert to intra 16x16 type MVs */
		1737	for(y=0; ymb_height; y++){
		1738	int x;
		1739	int xy= y*s->mb_stride;
		1740	for(x=0; xmb_width; x++){
		1741	if (s->mb_type[xy] & type){ // RAL: "type" test added...
		1742	if(field_select_table==NULL \|\| field_select_table[xy] == field_select){
		1743	if( mv_table[xy][0] >=h_range \|\| mv_table[xy][0] <-h_range
		1744	\|\| mv_table[xy][1] >=v_range \|\| mv_table[xy][1] <-v_range){
		1745
		1746	if(truncate){
		1747	if (mv_table[xy][0] > h_range-1) mv_table[xy][0]= h_range-1;
		1748	else if(mv_table[xy][0] < -h_range ) mv_table[xy][0]= -h_range;
		1749	if (mv_table[xy][1] > v_range-1) mv_table[xy][1]= v_range-1;
		1750	else if(mv_table[xy][1] < -v_range ) mv_table[xy][1]= -v_range;
		1751	}else{
		1752	s->mb_type[xy] &= ~type;
		1753	s->mb_type[xy] \|= CANDIDATE_MB_TYPE_INTRA;
		1754	mv_table[xy][0]=
		1755	mv_table[xy][1]= 0;
		1756	}
		1757	}
		1758	}
		1759	}
		1760	xy++;
		1761	}
		1762	}
		1763	}

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(root)/contrib/sdk/sources/ffmpeg/libavcodec/motion_est.c – Rev 4349