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h263 OBMC & 4MV support 

cleanup

Originally committed as revision 2536 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-11-28 21:31:20 +00:00
parent a11d11aaa8
commit f7190f7399
4 changed files with 488 additions and 234 deletions
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1
ffmpeg.c
View File

@ -2268,7 +2268,6 @@ static void opt_output_file(const char *filename)
video_enc->flags |= CODEC_FLAG_H263P_AIC;
}
if (use_4mv) {
video_enc->mb_decision = FF_MB_DECISION_BITS; //FIXME remove
video_enc->flags |= CODEC_FLAG_4MV;
}

228
libavcodec/h263.c
View File

@ -222,7 +222,7 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number)
calculation of the current MB to see if we're on the limits */
put_bits(&s->pb, 1, 0); /* unrestricted motion vector: off */
put_bits(&s->pb, 1, 0); /* SAC: off */
put_bits(&s->pb, 1, 0); /* advanced prediction mode: off */
put_bits(&s->pb, 1, s->obmc); /* advanced prediction mode */
put_bits(&s->pb, 1, 0); /* not PB frame */
put_bits(&s->pb, 5, s->qscale);
put_bits(&s->pb, 1, 0); /* Continuous Presence Multipoint mode: off */
@ -240,7 +240,7 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number)
s->umvplus = s->unrestricted_mv;
put_bits(&s->pb, 1, s->umvplus); /* Unrestricted Motion Vector */
put_bits(&s->pb,1,0); /* SAC: off */
put_bits(&s->pb,1,0); /* Advanced Prediction Mode: off */
put_bits(&s->pb,1,s->obmc); /* Advanced Prediction Mode */
put_bits(&s->pb,1,s->h263_aic); /* Advanced Intra Coding */
put_bits(&s->pb,1,0); /* Deblocking Filter: off */
put_bits(&s->pb,1,0); /* Slice Structured: off */
@ -602,6 +602,8 @@ void ff_h263_update_motion_val(MpegEncContext * s){
if(s->encoding){ //FIXME encoding MUST be cleaned up
if (s->mv_type == MV_TYPE_8X8)
s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_8x8;
else if(s->mb_intra)
s->current_picture.mb_type[mb_xy]= MB_TYPE_INTRA;
else
s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_16x16;
}
@ -896,15 +898,15 @@ void mpeg4_encode_mb(MpegEncContext * s,
}
put_bits(&s->pb, 1, 0); /* mb coded */
cbpc = cbp & 3;
cbpy = cbp >> 2;
cbpy ^= 0xf;
if(s->mv_type==MV_TYPE_16X16){
cbpc = cbp & 3;
if(s->dquant) cbpc+= 8;
put_bits(&s->pb,
inter_MCBPC_bits[cbpc],
inter_MCBPC_code[cbpc]);
cbpy = cbp >> 2;
cbpy ^= 0xf;
put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(pb2, 2, dquant_code[s->dquant+2]);
@ -925,12 +927,9 @@ void mpeg4_encode_mb(MpegEncContext * s,
h263_encode_motion(s, motion_x - pred_x, s->f_code);
h263_encode_motion(s, motion_y - pred_y, s->f_code);
}else{
cbpc = (cbp & 3)+16;
put_bits(&s->pb,
inter_MCBPC_bits[cbpc],
inter_MCBPC_code[cbpc]);
cbpy = cbp >> 2;
cbpy ^= 0xf;
inter_MCBPC_bits[cbpc+16],
inter_MCBPC_code[cbpc+16]);
put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(!s->progressive_sequence){
@ -1070,34 +1069,68 @@ void h263_encode_mb(MpegEncContext * s,
return;
}
put_bits(&s->pb, 1, 0); /* mb coded */
cbpc = cbp & 3;
if(s->dquant) cbpc+= 8;
put_bits(&s->pb,
inter_MCBPC_bits[cbpc],
inter_MCBPC_code[cbpc]);
cbpy = cbp >> 2;
cbpy ^= 0xf;
put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
if(s->mv_type==MV_TYPE_16X16){
put_bits(&s->pb,
inter_MCBPC_bits[cbpc],
inter_MCBPC_code[cbpc]);
if(interleaved_stats){
s->misc_bits+= get_bits_diff(s);
}
put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
if(interleaved_stats){
s->misc_bits+= get_bits_diff(s);
}
/* motion vectors: 16x16 mode only now */
h263_pred_motion(s, 0, &pred_x, &pred_y);
if (!s->umvplus) {
h263_encode_motion(s, motion_x - pred_x, s->f_code);
h263_encode_motion(s, motion_y - pred_y, s->f_code);
}
else {
h263p_encode_umotion(s, motion_x - pred_x);
h263p_encode_umotion(s, motion_y - pred_y);
if (((motion_x - pred_x) == 1) && ((motion_y - pred_y) == 1))
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
/* motion vectors: 16x16 mode */
h263_pred_motion(s, 0, &pred_x, &pred_y);
if (!s->umvplus) {
h263_encode_motion(s, motion_x - pred_x, s->f_code);
h263_encode_motion(s, motion_y - pred_y, s->f_code);
}
else {
h263p_encode_umotion(s, motion_x - pred_x);
h263p_encode_umotion(s, motion_y - pred_y);
if (((motion_x - pred_x) == 1) && ((motion_y - pred_y) == 1))
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
}
}else{
put_bits(&s->pb,
inter_MCBPC_bits[cbpc+16],
inter_MCBPC_code[cbpc+16]);
put_bits(&s->pb, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(&s->pb, 2, dquant_code[s->dquant+2]);
if(interleaved_stats){
s->misc_bits+= get_bits_diff(s);
}
for(i=0; i<4; i++){
/* motion vectors: 8x8 mode*/
h263_pred_motion(s, i, &pred_x, &pred_y);
motion_x= s->motion_val[ s->block_index[i] ][0];
motion_y= s->motion_val[ s->block_index[i] ][1];
if (!s->umvplus) {
h263_encode_motion(s, motion_x - pred_x, s->f_code);
h263_encode_motion(s, motion_y - pred_y, s->f_code);
}
else {
h263p_encode_umotion(s, motion_x - pred_x);
h263p_encode_umotion(s, motion_y - pred_y);
if (((motion_x - pred_x) == 1) && ((motion_y - pred_y) == 1))
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
}
}
}
if(interleaved_stats){
@ -3301,6 +3334,97 @@ static int mpeg4_decode_partitioned_mb(MpegEncContext *s, DCTELEM block[6][64])
}
}
/**
* read the next MVs for OBMC. yes this is a ugly hack, feel free to send a patch :)
*/
static void preview_obmc(MpegEncContext *s){
GetBitContext gb= s->gb;
int cbpc, i, pred_x, pred_y, mx, my;
int16_t *mot_val;
const int xy= s->mb_x + 1 + s->mb_y * s->mb_stride;
const int stride= s->block_wrap[0]*2;
for(i=0; i<4; i++)
s->block_index[i]+= 2;
for(i=4; i<6; i++)
s->block_index[i]+= 1;
s->mb_x++;
assert(s->pict_type == P_TYPE);
do{
if (get_bits1(&s->gb)) {
/* skip mb */
mot_val = s->motion_val[ s->block_index[0] ];
mot_val[0 ]= mot_val[2 ]=
mot_val[0+stride]= mot_val[2+stride]= 0;
mot_val[1 ]= mot_val[3 ]=
mot_val[1+stride]= mot_val[3+stride]= 0;
s->current_picture.mb_type[xy]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
goto end;
}
cbpc = get_vlc2(&s->gb, inter_MCBPC_vlc.table, INTER_MCBPC_VLC_BITS, 2);
}while(cbpc == 20);
if(cbpc & 4){
s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
}else{
get_vlc2(&s->gb, cbpy_vlc.table, CBPY_VLC_BITS, 1);
if (cbpc & 8) {
skip_bits(&s->gb, 2);
}
if ((cbpc & 16) == 0) {
s->current_picture.mb_type[xy]= MB_TYPE_16x16 | MB_TYPE_L0;
/* 16x16 motion prediction */
mot_val= h263_pred_motion(s, 0, &pred_x, &pred_y);
if (s->umvplus)
mx = h263p_decode_umotion(s, pred_x);
else
mx = h263_decode_motion(s, pred_x, s->f_code);
if (s->umvplus)
my = h263p_decode_umotion(s, pred_y);
else
my = h263_decode_motion(s, pred_y, s->f_code);
mot_val[0 ]= mot_val[2 ]=
mot_val[0+stride]= mot_val[2+stride]= mx;
mot_val[1 ]= mot_val[3 ]=
mot_val[1+stride]= mot_val[3+stride]= my;
} else {
s->current_picture.mb_type[xy]= MB_TYPE_8x8 | MB_TYPE_L0;
for(i=0;i<4;i++) {
mot_val = h263_pred_motion(s, i, &pred_x, &pred_y);
if (s->umvplus)
mx = h263p_decode_umotion(s, pred_x);
else
mx = h263_decode_motion(s, pred_x, s->f_code);
if (s->umvplus)
my = h263p_decode_umotion(s, pred_y);
else
my = h263_decode_motion(s, pred_y, s->f_code);
if (s->umvplus && (mx - pred_x) == 1 && (my - pred_y) == 1)
skip_bits1(&s->gb); /* Bit stuffing to prevent PSC */
mot_val[0] = mx;
mot_val[1] = my;
}
}
}
end:
for(i=0; i<4; i++)
s->block_index[i]-= 2;
for(i=4; i<6; i++)
s->block_index[i]-= 1;
s->mb_x--;
s->gb= gb;
}
int ff_h263_decode_mb(MpegEncContext *s,
DCTELEM block[6][64])
{
@ -3330,7 +3454,7 @@ int ff_h263_decode_mb(MpegEncContext *s,
s->mcsel=0;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
s->mb_skiped = 1;
s->mb_skiped = !s->obmc;
}
goto end;
}
@ -3645,6 +3769,10 @@ intra:
}
}
end:
if(s->obmc){
if(s->pict_type == P_TYPE && s->mb_x+1<s->mb_width)
preview_obmc(s);
}
/* per-MB end of slice check */
if(s->codec_id==CODEC_ID_MPEG4){
@ -4231,16 +4359,14 @@ int h263_decode_picture_header(MpegEncContext *s)
s->pict_type = I_TYPE + get_bits1(&s->gb);
s->unrestricted_mv = get_bits1(&s->gb);
s->h263_long_vectors = s->unrestricted_mv;
s->h263_long_vectors = get_bits1(&s->gb);
if (get_bits1(&s->gb) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "H263 SAC not supported\n");
return -1; /* SAC: off */
}
if (get_bits1(&s->gb) != 0) {
s->mv_type = MV_TYPE_8X8; /* Advanced prediction mode */
}
s->obmc= get_bits1(&s->gb); /* Advanced prediction mode */
s->unrestricted_mv = s->h263_long_vectors || s->obmc;
if (get_bits1(&s->gb) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "H263 PB frame not supported\n");
@ -4265,14 +4391,10 @@ int h263_decode_picture_header(MpegEncContext *s)
dprintf("ufep=1, format: %d\n", format);
skip_bits(&s->gb,1); /* Custom PCF */
s->umvplus = get_bits(&s->gb, 1); /* Unrestricted Motion Vector */
s->unrestricted_mv = s->umvplus;
skip_bits1(&s->gb); /* Syntax-based Arithmetic Coding (SAC) */
if (get_bits1(&s->gb) != 0) {
s->mv_type = MV_TYPE_8X8; /* Advanced prediction mode */
}
if (get_bits1(&s->gb) != 0) { /* Advanced Intra Coding (AIC) */
s->h263_aic = 1;
}
s->obmc= get_bits1(&s->gb); /* Advanced prediction mode */
s->unrestricted_mv = s->umvplus || s->obmc;
s->h263_aic = get_bits1(&s->gb); /* Advanced Intra Coding (AIC) */
if (get_bits1(&s->gb) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "Deblocking Filter not supported\n");
@ -4303,7 +4425,6 @@ int h263_decode_picture_header(MpegEncContext *s)
/* MPPTYPE */
s->pict_type = get_bits(&s->gb, 3) + I_TYPE;
dprintf("pict_type: %d\n", s->pict_type);
if (s->pict_type == 8 && s->avctx->codec_tag == ff_get_fourcc("ZYGO"))
s->pict_type = I_TYPE;
if (s->pict_type != I_TYPE &&
@ -4311,7 +4432,6 @@ int h263_decode_picture_header(MpegEncContext *s)
return -1;
skip_bits(&s->gb, 2);
s->no_rounding = get_bits1(&s->gb);
dprintf("RTYPE: %d\n", s->no_rounding);
skip_bits(&s->gb, 4);
/* Get the picture dimensions */
@ -4371,13 +4491,14 @@ int h263_decode_picture_header(MpegEncContext *s)
}
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_DEBUG, "qp:%d %c size:%d rnd:%d %s %s %s %s\n",
av_log(s->avctx, AV_LOG_DEBUG, "qp:%d %c size:%d rnd:%d%s%s%s%s%s\n",
s->qscale, av_get_pict_type_char(s->pict_type),
s->gb.size_in_bits, 1-s->no_rounding,
s->mv_type == MV_TYPE_8X8 ? "ADV" : "",
s->umvplus ? "UMV" : "",
s->h263_long_vectors ? "LONG" : "",
s->h263_plus ? "+" : ""
s->obmc ? " AP" : "",
s->umvplus ? " UMV" : "",
s->h263_long_vectors ? " LONG" : "",
s->h263_plus ? " +" : "",
s->h263_aic ? " AIC" : ""
);
}
#if 1
@ -5246,8 +5367,9 @@ int intel_h263_decode_picture_header(MpegEncContext *s)
return -1; /* SAC: off */
}
if (get_bits1(&s->gb) != 0) {
s->obmc= 1;
av_log(s->avctx, AV_LOG_ERROR, "Advanced Prediction Mode not supported\n");
return -1; /* advanced prediction mode: off */
// return -1; /* advanced prediction mode: off */
}
if (get_bits1(&s->gb) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "PB frame mode no supported\n");

58
libavcodec/motion_est.c
View File

@ -1120,6 +1120,7 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
}else
set_p_mv_tables(s, mx, my, 1);
}else{
int intra_score, i;
mb_type= MB_TYPE_INTER;
dmin= s->me.sub_motion_search(s, &mx, &my, dmin, rel_xmin, rel_ymin, rel_xmax, rel_ymax,
@ -1136,10 +1137,59 @@ void ff_estimate_p_frame_motion(MpegEncContext * s,
dmin=dmin4;
}
}
pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
// pic->mb_cmp_score[s->mb_stride * mb_y + mb_x] = dmin;
set_p_mv_tables(s, mx, my, mb_type!=MB_TYPE_INTER4V);
/* get intra luma score */
if((s->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
intra_score= (varc<<8) - 500; //FIXME dont scale it down so we dont have to fix it
}else{
int mean= (sum+128)>>8;
mean*= 0x01010101;
for(i=0; i<16; i++){
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 0]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 4]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 8]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+12]) = mean;
}
intra_score= s->dsp.mb_cmp[0](s, s->me.scratchpad, pix, s->linesize);
}
#if 0 //FIXME
/* get chroma score */
if(s->avctx->mb_cmp&FF_CMP_CHROMA){
for(i=1; i<3; i++){
uint8_t *dest_c;
int mean;
if(s->out_format == FMT_H263){
mean= (s->dc_val[i][mb_x + (mb_y+1)*(s->mb_width+2)] + 4)>>3; //FIXME not exact but simple ;)
}else{
mean= (s->last_dc[i] + 4)>>3;
}
dest_c = s->new_picture.data[i] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
mean*= 0x01010101;
for(i=0; i<8; i++){
*(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 0]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 4]) = mean;
}
intra_score+= s->dsp.mb_cmp[1](s, s->me.scratchpad, dest_c, s->uvlinesize);
}
}
#endif
intra_score += s->me.mb_penalty_factor*16;
if (vard <= 64 || vard < varc) {
if(intra_score < dmin){
mb_type= MB_TYPE_INTRA;
s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_INTRA; //FIXME cleanup
}else
s->current_picture.mb_type[mb_y*s->mb_stride + mb_x]= 0;
if (vard <= 64 || vard < varc) { //FIXME
s->scene_change_score+= ff_sqrt(vard) - ff_sqrt(varc);
}else{
s->scene_change_score+= s->qscale;
@ -1566,7 +1616,7 @@ int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type)
int x;
int xy= y*s->mb_stride;
for(x=0; x<s->mb_width; x++){
if(s->mb_type[xy] & type){
if((s->mb_type[xy] & type) || (s->mb_type[xy] & MB_TYPE_INTRA)){ //FIXME
int fcode= FFMAX(fcode_tab[mv_table[xy][0] + MAX_MV],
fcode_tab[mv_table[xy][1] + MAX_MV]);
int j;
@ -1621,6 +1671,7 @@ void ff_fix_long_p_mvs(MpegEncContext * s)
|| s->p_mv_table[xy][1] >=range || s->p_mv_table[xy][1] <-range){
s->mb_type[xy] &= ~MB_TYPE_INTER;
s->mb_type[xy] |= MB_TYPE_INTRA;
s->current_picture.mb_type[xy]= MB_TYPE_INTRA;
s->p_mv_table[xy][0] = 0;
s->p_mv_table[xy][1] = 0;
}
@ -1650,6 +1701,7 @@ void ff_fix_long_p_mvs(MpegEncContext * s)
|| my >=range || my <-range){
s->mb_type[i] &= ~MB_TYPE_INTER4V;
s->mb_type[i] |= MB_TYPE_INTRA;
s->current_picture.mb_type[i]= MB_TYPE_INTRA;
}
}
}

435
libavcodec/mpegvideo.c
View File

@ -297,7 +297,6 @@ static int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
CHECKED_ALLOCZ(pic->mb_var , mb_array_size * sizeof(int16_t))
CHECKED_ALLOCZ(pic->mc_mb_var, mb_array_size * sizeof(int16_t))
CHECKED_ALLOCZ(pic->mb_mean , mb_array_size * sizeof(int8_t))
CHECKED_ALLOCZ(pic->mb_cmp_score, mb_array_size * sizeof(int32_t))
}
CHECKED_ALLOCZ(pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2) //the +2 is for the slice end check
@ -338,7 +337,6 @@ static void free_picture(MpegEncContext *s, Picture *pic){
av_freep(&pic->mb_var);
av_freep(&pic->mc_mb_var);
av_freep(&pic->mb_mean);
av_freep(&pic->mb_cmp_score);
av_freep(&pic->mbskip_table);
av_freep(&pic->qscale_table);
av_freep(&pic->mb_type_base);
@ -669,12 +667,21 @@ int MPV_encode_init(AVCodecContext *avctx)
&& !s->fixed_qscale;
s->progressive_sequence= !(avctx->flags & CODEC_FLAG_INTERLACED_DCT);
s->obmc= (s->codec_id == CODEC_ID_H263 || s->codec_id == CODEC_ID_H263P)
&& (s->flags & CODEC_FLAG_4MV);
if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4){
if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
&& s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
return -1;
}
if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decission\n");
return -1;
}
if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
return -1;
@ -1964,6 +1971,42 @@ void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w,
}
}
static inline int hpel_motion(MpegEncContext *s,
uint8_t *dest, uint8_t *src,
int src_x, int src_y,
int width, int height, int stride,
int h_edge_pos, int v_edge_pos,
int w, int h, op_pixels_func *pix_op,
int motion_x, int motion_y)
{
int dxy;
int emu=0;
dxy = ((motion_y & 1) << 1) | (motion_x & 1);
src_x += motion_x >> 1;
src_y += motion_y >> 1;
/* WARNING: do no forget half pels */
src_x = clip(src_x, -16, width); //FIXME unneeded for emu?
if (src_x == width)
dxy &= ~1;
src_y = clip(src_y, -16, height);
if (src_y == height)
dxy &= ~2;
src += src_y * stride + src_x;
if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
if( (unsigned)src_x > h_edge_pos - (motion_x&1) - w
|| (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
ff_emulated_edge_mc(s->edge_emu_buffer, src, stride, w+1, h+1,
src_x, src_y, h_edge_pos, v_edge_pos);
src= s->edge_emu_buffer;
emu=1;
}
}
pix_op[dxy](dest, src, stride, h);
return emu;
}
/* apply one mpeg motion vector to the three components */
static inline void mpeg_motion(MpegEncContext *s,
@ -1974,7 +2017,7 @@ static inline void mpeg_motion(MpegEncContext *s,
int motion_x, int motion_y, int h)
{
uint8_t *ptr;
int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, linesize, uvlinesize;
int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, uvlinesize;
int emu=0;
#if 0
if(s->quarter_sample)
@ -1983,34 +2026,19 @@ if(s->quarter_sample)
motion_y>>=1;
}
#endif
dxy = ((motion_y & 1) << 1) | (motion_x & 1);
src_x = s->mb_x * 16 + (motion_x >> 1);
src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
/* WARNING: do no forget half pels */
height = s->height >> field_based;
v_edge_pos = s->v_edge_pos >> field_based;
src_x = clip(src_x, -16, s->width);
if (src_x == s->width)
dxy &= ~1;
src_y = clip(src_y, -16, height);
if (src_y == height)
dxy &= ~2;
linesize = s->current_picture.linesize[0] << field_based;
uvlinesize = s->current_picture.linesize[1] << field_based;
ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
dest_y += dest_offset;
if(s->unrestricted_mv && (s->flags&CODEC_FLAG_EMU_EDGE)){
if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 16
|| (unsigned)src_y > v_edge_pos - (motion_y&1) - h){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr - src_offset, s->linesize, 17, 17+field_based, //FIXME linesize? and uv below
src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
ptr= s->edge_emu_buffer + src_offset;
emu=1;
}
}
pix_op[0][dxy](dest_y, ptr, linesize, h);
emu= hpel_motion(s,
dest_y + dest_offset, ref_picture[0] + src_offset,
s->mb_x * 16, s->mb_y * (16 >> field_based),
s->width, height, s->current_picture.linesize[0] << field_based,
s->h_edge_pos, v_edge_pos,
16, h, pix_op[0],
motion_x, motion_y);
if(s->flags&CODEC_FLAG_GRAY) return;
@ -2055,6 +2083,87 @@ if(s->quarter_sample)
}
pix_op[1][dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
}
//FIXME move to dsputil, avg variant, 16x16 version
static inline void put_obmc(uint8_t *dst, uint8_t *src[5], int stride){
int x;
uint8_t * const top = src[1];
uint8_t * const left = src[2];
uint8_t * const mid = src[0];
uint8_t * const right = src[3];
uint8_t * const bottom= src[4];
#define OBMC_FILTER(x, t, l, m, r, b)\
dst[x]= (t*top[x] + l*left[x] + m*mid[x] + r*right[x] + b*bottom[x] + 4)>>3
#define OBMC_FILTER4(x, t, l, m, r, b)\
OBMC_FILTER(x , t, l, m, r, b);\
OBMC_FILTER(x+1 , t, l, m, r, b);\
OBMC_FILTER(x +stride, t, l, m, r, b);\
OBMC_FILTER(x+1+stride, t, l, m, r, b);
x=0;
OBMC_FILTER (x , 2, 2, 4, 0, 0);
OBMC_FILTER (x+1, 2, 1, 5, 0, 0);
OBMC_FILTER4(x+2, 2, 1, 5, 0, 0);
OBMC_FILTER4(x+4, 2, 0, 5, 1, 0);
OBMC_FILTER (x+6, 2, 0, 5, 1, 0);
OBMC_FILTER (x+7, 2, 0, 4, 2, 0);
x+= stride;
OBMC_FILTER (x , 1, 2, 5, 0, 0);
OBMC_FILTER (x+1, 1, 2, 5, 0, 0);
OBMC_FILTER (x+6, 1, 0, 5, 2, 0);
OBMC_FILTER (x+7, 1, 0, 5, 2, 0);
x+= stride;
OBMC_FILTER4(x , 1, 2, 5, 0, 0);
OBMC_FILTER4(x+2, 1, 1, 6, 0, 0);
OBMC_FILTER4(x+4, 1, 0, 6, 1, 0);
OBMC_FILTER4(x+6, 1, 0, 5, 2, 0);
x+= 2*stride;
OBMC_FILTER4(x , 0, 2, 5, 0, 1);
OBMC_FILTER4(x+2, 0, 1, 6, 0, 1);
OBMC_FILTER4(x+4, 0, 0, 6, 1, 1);
OBMC_FILTER4(x+6, 0, 0, 5, 2, 1);
x+= 2*stride;
OBMC_FILTER (x , 0, 2, 5, 0, 1);
OBMC_FILTER (x+1, 0, 2, 5, 0, 1);
OBMC_FILTER4(x+2, 0, 1, 5, 0, 2);
OBMC_FILTER4(x+4, 0, 0, 5, 1, 2);
OBMC_FILTER (x+6, 0, 0, 5, 2, 1);
OBMC_FILTER (x+7, 0, 0, 5, 2, 1);
x+= stride;
OBMC_FILTER (x , 0, 2, 4, 0, 2);
OBMC_FILTER (x+1, 0, 1, 5, 0, 2);
OBMC_FILTER (x+6, 0, 0, 5, 1, 2);
OBMC_FILTER (x+7, 0, 0, 4, 2, 2);
}
/* obmc for 1 8x8 luma block */
static inline void obmc_motion(MpegEncContext *s,
uint8_t *dest, uint8_t *src,
int src_x, int src_y,
op_pixels_func *pix_op,
int16_t mv[5][2]/* mid top left right bottom*/)
#define MID 0
{
int i;
uint8_t *ptr[5];
assert(s->quarter_sample==0);
for(i=0; i<5; i++){
if(i && mv[i][0]==mv[MID][0] && mv[i][1]==mv[MID][1]){
ptr[i]= ptr[MID];
}else{
ptr[i]= s->edge_emu_buffer + 16 + 8*(i&1) + s->linesize*8*(i>>1);
hpel_motion(s, ptr[i], src,
src_x, src_y,
s->width, s->height, s->linesize,
s->h_edge_pos, s->v_edge_pos,
8, 8, pix_op,
mv[i][0], mv[i][1]);
}
}
put_obmc(dest, ptr, s->linesize);
}
static inline void qpel_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
@ -2163,6 +2272,55 @@ inline int ff_h263_round_chroma(int x){
}
}
/**
* h263 chorma 4mv motion compensation.
*/
static inline void chroma_4mv_motion(MpegEncContext *s,
uint8_t *dest_cb, uint8_t *dest_cr,
uint8_t **ref_picture,
op_pixels_func *pix_op,
int mx, int my){
int dxy, emu=0, src_x, src_y, offset;
uint8_t *ptr;
/* In case of 8X8, we construct a single chroma motion vector
with a special rounding */
mx= ff_h263_round_chroma(mx);
my= ff_h263_round_chroma(my);
dxy = ((my & 1) << 1) | (mx & 1);
mx >>= 1;
my >>= 1;
src_x = s->mb_x * 8 + mx;
src_y = s->mb_y * 8 + my;
src_x = clip(src_x, -8, s->width/2);
if (src_x == s->width/2)
dxy &= ~1;
src_y = clip(src_y, -8, s->height/2);
if (src_y == s->height/2)
dxy &= ~2;
offset = (src_y * (s->uvlinesize)) + src_x;
ptr = ref_picture[1] + offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if( (unsigned)src_x > (s->h_edge_pos>>1) - (dxy &1) - 8
|| (unsigned)src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
ptr= s->edge_emu_buffer;
emu=1;
}
}
pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
ptr = ref_picture[2] + offset;
if(emu){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
ptr= s->edge_emu_buffer;
}
pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
}
/**
* motion compesation of a single macroblock
* @param s context
@ -2180,14 +2338,74 @@ static inline void MPV_motion(MpegEncContext *s,
int dir, uint8_t **ref_picture,
op_pixels_func (*pix_op)[4], qpel_mc_func (*qpix_op)[16])
{
int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
int dxy, mx, my, src_x, src_y, motion_x, motion_y;
int mb_x, mb_y, i;
uint8_t *ptr, *dest;
int emu=0;
mb_x = s->mb_x;
mb_y = s->mb_y;
if(s->obmc){
int16_t mv_cache[4][4][2];
const int xy= s->mb_x + s->mb_y*s->mb_stride;
const int mot_stride= s->mb_width*2 + 2;
const int mot_xy= 1 + mb_x*2 + (mb_y*2 + 1)*mot_stride;
assert(!s->mb_skiped);
memcpy(mv_cache[1][1], s->motion_val[mot_xy ], sizeof(int16_t)*4);
memcpy(mv_cache[2][1], s->motion_val[mot_xy+mot_stride], sizeof(int16_t)*4);
memcpy(mv_cache[3][1], s->motion_val[mot_xy+mot_stride], sizeof(int16_t)*4);
if(mb_y==0 || IS_INTRA(s->current_picture.mb_type[xy-s->mb_stride])){
memcpy(mv_cache[0][1], mv_cache[1][1], sizeof(int16_t)*4);
}else{
memcpy(mv_cache[0][1], s->motion_val[mot_xy-mot_stride], sizeof(int16_t)*4);
}
if(mb_x==0 || IS_INTRA(s->current_picture.mb_type[xy-1])){
*(int32_t*)mv_cache[1][0]= *(int32_t*)mv_cache[1][1];
*(int32_t*)mv_cache[2][0]= *(int32_t*)mv_cache[2][1];
}else{
*(int32_t*)mv_cache[1][0]= *(int32_t*)s->motion_val[mot_xy-1];
*(int32_t*)mv_cache[2][0]= *(int32_t*)s->motion_val[mot_xy-1+mot_stride];
}
if(mb_x+1>=s->mb_width || IS_INTRA(s->current_picture.mb_type[xy+1])){
*(int32_t*)mv_cache[1][3]= *(int32_t*)mv_cache[1][2];
*(int32_t*)mv_cache[2][3]= *(int32_t*)mv_cache[2][2];
}else{
*(int32_t*)mv_cache[1][3]= *(int32_t*)s->motion_val[mot_xy+2];
*(int32_t*)mv_cache[2][3]= *(int32_t*)s->motion_val[mot_xy+2+mot_stride];
}
mx = 0;
my = 0;
for(i=0;i<4;i++) {
const int x= (i&1)+1;
const int y= (i>>1)+1;
int16_t mv[5][2]= {
{mv_cache[y][x ][0], mv_cache[y][x ][1]},
{mv_cache[y-1][x][0], mv_cache[y-1][x][1]},
{mv_cache[y][x-1][0], mv_cache[y][x-1][1]},
{mv_cache[y][x+1][0], mv_cache[y][x+1][1]},
{mv_cache[y+1][x][0], mv_cache[y+1][x][1]}};
//FIXME cleanup
obmc_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
ref_picture[0],
mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
pix_op[1],
mv);
mx += mv[0][0];
my += mv[0][1];
}
if(!(s->flags&CODEC_FLAG_GRAY))
chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
return;
}
switch(s->mv_type) {
case MV_TYPE_16X16:
#ifdef CONFIG_RISKY
@ -2253,73 +2471,21 @@ static inline void MPV_motion(MpegEncContext *s,
}
}else{
for(i=0;i<4;i++) {
motion_x = s->mv[dir][i][0];
motion_y = s->mv[dir][i][1];
dxy = ((motion_y & 1) << 1) | (motion_x & 1);
src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
/* WARNING: do no forget half pels */
src_x = clip(src_x, -16, s->width);
if (src_x == s->width)
dxy &= ~1;
src_y = clip(src_y, -16, s->height);
if (src_y == s->height)
dxy &= ~2;
ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
if(s->flags&CODEC_FLAG_EMU_EDGE){
if( (unsigned)src_x > s->h_edge_pos - (motion_x&1) - 8
|| (unsigned)src_y > s->v_edge_pos - (motion_y&1) - 8){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
ptr= s->edge_emu_buffer;
}
}
dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
pix_op[1][dxy](dest, ptr, s->linesize, 8);
hpel_motion(s, dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize,
ref_picture[0],
mb_x * 16 + (i & 1) * 8, mb_y * 16 + (i >>1) * 8,
s->width, s->height, s->linesize,
s->h_edge_pos, s->v_edge_pos,
8, 8, pix_op[1],
s->mv[dir][i][0], s->mv[dir][i][1]);
mx += s->mv[dir][i][0];
my += s->mv[dir][i][1];
}
}
if(s->flags&CODEC_FLAG_GRAY) break;
/* In case of 8X8, we construct a single chroma motion vector
with a special rounding */
mx= ff_h263_round_chroma(mx);
my= ff_h263_round_chroma(my);
dxy = ((my & 1) << 1) | (mx & 1);
mx >>= 1;
my >>= 1;
src_x = mb_x * 8 + mx;
src_y = mb_y * 8 + my;
src_x = clip(src_x, -8, s->width/2);
if (src_x == s->width/2)
dxy &= ~1;
src_y = clip(src_y, -8, s->height/2);
if (src_y == s->height/2)
dxy &= ~2;
offset = (src_y * (s->uvlinesize)) + src_x;
ptr = ref_picture[1] + offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if( (unsigned)src_x > (s->h_edge_pos>>1) - (dxy &1) - 8
|| (unsigned)src_y > (s->v_edge_pos>>1) - (dxy>>1) - 8){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
ptr= s->edge_emu_buffer;
emu=1;
}
}
pix_op[1][dxy](dest_cb, ptr, s->uvlinesize, 8);
ptr = ref_picture[2] + offset;
if(emu){
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
ptr= s->edge_emu_buffer;
}
pix_op[1][dxy](dest_cr, ptr, s->uvlinesize, 8);
if(!(s->flags&CODEC_FLAG_GRAY))
chroma_4mv_motion(s, dest_cb, dest_cr, ref_picture, pix_op[1], mx, my);
break;
case MV_TYPE_FIELD:
if (s->picture_structure == PICT_FRAME) {
@ -2459,7 +2625,7 @@ static inline void MPV_motion(MpegEncContext *s,
}
}
break;
default: assert(0);
}
}
@ -3943,90 +4109,6 @@ static void encode_picture(MpegEncContext *s, int picture_number)
MPV_decode_mb(s, s->block);
} else {
int motion_x, motion_y;
int intra_score;
int inter_score= s->current_picture.mb_cmp_score[mb_x + mb_y*s->mb_stride];
if(s->avctx->mb_decision==FF_MB_DECISION_SIMPLE && s->pict_type==P_TYPE){ //FIXME check if the mess is usefull at all
/* get luma score */
if((s->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
intra_score= (s->current_picture.mb_var[mb_x + mb_y*s->mb_stride]<<8) - 500; //FIXME dont scale it down so we dont have to fix it
}else{
uint8_t *dest_y;
int mean= s->current_picture.mb_mean[mb_x + mb_y*s->mb_stride]; //FIXME
mean*= 0x01010101;
dest_y = s->new_picture.data[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
for(i=0; i<16; i++){
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 0]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 4]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 8]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->linesize+12]) = mean;
}
s->mb_intra=1;
intra_score= s->dsp.mb_cmp[0](s, s->me.scratchpad, dest_y, s->linesize);
/* printf("intra:%7d inter:%7d var:%7d mc_var.%7d\n", intra_score>>8, inter_score>>8,
s->current_picture.mb_var[mb_x + mb_y*s->mb_stride],
s->current_picture.mc_mb_var[mb_x + mb_y*s->mb_stride]);*/
}
/* get chroma score */
if(s->avctx->mb_cmp&FF_CMP_CHROMA){
int i;
s->mb_intra=1;
for(i=1; i<3; i++){
uint8_t *dest_c;
int mean;
if(s->out_format == FMT_H263){
mean= (s->dc_val[i][mb_x + (mb_y+1)*(s->mb_width+2)] + 4)>>3; //FIXME not exact but simple ;)
}else{
mean= (s->last_dc[i] + 4)>>3;
}
dest_c = s->new_picture.data[i] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
mean*= 0x01010101;
for(i=0; i<8; i++){
*(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 0]) = mean;
*(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 4]) = mean;
}
intra_score+= s->dsp.mb_cmp[1](s, s->me.scratchpad, dest_c, s->uvlinesize);
}
}
/* bias */
switch(s->avctx->mb_cmp&0xFF){
default:
case FF_CMP_SAD:
intra_score+= 32*s->qscale;
break;
case FF_CMP_SSE:
intra_score+= 24*s->qscale*s->qscale;
break;
case FF_CMP_SATD:
intra_score+= 96*s->qscale;
break;
case FF_CMP_DCT:
intra_score+= 48*s->qscale;
break;
case FF_CMP_BIT:
intra_score+= 16;
break;
case FF_CMP_PSNR:
case FF_CMP_RD:
intra_score+= (s->qscale*s->qscale*109*8 + 64)>>7;
break;
}
if(intra_score < inter_score)
mb_type= MB_TYPE_INTRA;
}
s->mv_type=MV_TYPE_16X16;
// only one MB-Type possible
@ -4941,4 +5023,3 @@ AVCodec mjpeg_encoder = {
};
#endif //CONFIG_ENCODERS