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FFmpeg/libavcodec/mpegvideo_motion.c
Anton Khirnov ebfe622bb1 mpegvideo: drop support for real (non-emulated) edges 
Several decoders disable those anyway and they are not measurably faster
on x86. They might be somewhat faster on other platforms due to missing
emu edge SIMD, but the gain is not large enough (and those decoders
relevant enough) to justify the added complexity.
2014-01-09 09:41:19 +01:00

983 lines
37 KiB
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/*
* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "libavutil/internal.h"
#include "avcodec.h"
#include "dsputil.h"
#include "h261.h"
#include "mpegvideo.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include <limits.h>
static void gmc1_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
uint8_t **ref_picture)
{
uint8_t *ptr;
int src_x, src_y, motion_x, motion_y;
ptrdiff_t offset, linesize, uvlinesize;
int emu = 0;
motion_x = s->sprite_offset[0][0];
motion_y = s->sprite_offset[0][1];
src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy + 1));
src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy + 1));
motion_x <<= (3 - s->sprite_warping_accuracy);
motion_y <<= (3 - s->sprite_warping_accuracy);
src_x = av_clip(src_x, -16, s->width);
if (src_x == s->width)
motion_x = 0;
src_y = av_clip(src_y, -16, s->height);
if (src_y == s->height)
motion_y = 0;
linesize = s->linesize;
uvlinesize = s->uvlinesize;
ptr = ref_picture[0] + src_y * linesize + src_x;
if ((unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0) ||
(unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
linesize, linesize,
17, 17,
src_x, src_y,
s->h_edge_pos, s->v_edge_pos);
ptr = s->edge_emu_buffer;
}
if ((motion_x | motion_y) & 7) {
s->dsp.gmc1(dest_y, ptr, linesize, 16,
motion_x & 15, motion_y & 15, 128 - s->no_rounding);
s->dsp.gmc1(dest_y + 8, ptr + 8, linesize, 16,
motion_x & 15, motion_y & 15, 128 - s->no_rounding);
} else {
int dxy;
dxy = ((motion_x >> 3) & 1) | ((motion_y >> 2) & 2);
if (s->no_rounding) {
s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
} else {
s->hdsp.put_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
}
}
if (CONFIG_GRAY && s->flags & CODEC_FLAG_GRAY)
return;
motion_x = s->sprite_offset[1][0];
motion_y = s->sprite_offset[1][1];
src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy + 1));
src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy + 1));
motion_x <<= (3 - s->sprite_warping_accuracy);
motion_y <<= (3 - s->sprite_warping_accuracy);
src_x = av_clip(src_x, -8, s->width >> 1);
if (src_x == s->width >> 1)
motion_x = 0;
src_y = av_clip(src_y, -8, s->height >> 1);
if (src_y == s->height >> 1)
motion_y = 0;
offset = (src_y * uvlinesize) + src_x;
ptr = ref_picture[1] + offset;
if ((unsigned)src_x >= FFMAX((s->h_edge_pos >> 1) - 9, 0) ||
(unsigned)src_y >= FFMAX((s->v_edge_pos >> 1) - 9, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
uvlinesize, uvlinesize,
9, 9,
src_x, src_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ptr = s->edge_emu_buffer;
emu = 1;
}
s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8,
motion_x & 15, motion_y & 15, 128 - s->no_rounding);
ptr = ref_picture[2] + offset;
if (emu) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
uvlinesize, uvlinesize,
9, 9,
src_x, src_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ptr = s->edge_emu_buffer;
}
s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8,
motion_x & 15, motion_y & 15, 128 - s->no_rounding);
}
static void gmc_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
uint8_t **ref_picture)
{
uint8_t *ptr;
int linesize, uvlinesize;
const int a = s->sprite_warping_accuracy;
int ox, oy;
linesize = s->linesize;
uvlinesize = s->uvlinesize;
ptr = ref_picture[0];
ox = s->sprite_offset[0][0] + s->sprite_delta[0][0] * s->mb_x * 16 +
s->sprite_delta[0][1] * s->mb_y * 16;
oy = s->sprite_offset[0][1] + s->sprite_delta[1][0] * s->mb_x * 16 +
s->sprite_delta[1][1] * s->mb_y * 16;
s->dsp.gmc(dest_y, ptr, linesize, 16,
ox, oy,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
s->h_edge_pos, s->v_edge_pos);
s->dsp.gmc(dest_y + 8, ptr, linesize, 16,
ox + s->sprite_delta[0][0] * 8,
oy + s->sprite_delta[1][0] * 8,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
s->h_edge_pos, s->v_edge_pos);
if (CONFIG_GRAY && s->flags & CODEC_FLAG_GRAY)
return;
ox = s->sprite_offset[1][0] + s->sprite_delta[0][0] * s->mb_x * 8 +
s->sprite_delta[0][1] * s->mb_y * 8;
oy = s->sprite_offset[1][1] + s->sprite_delta[1][0] * s->mb_x * 8 +
s->sprite_delta[1][1] * s->mb_y * 8;
ptr = ref_picture[1];
s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
ox, oy,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ptr = ref_picture[2];
s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
ox, oy,
s->sprite_delta[0][0], s->sprite_delta[0][1],
s->sprite_delta[1][0], s->sprite_delta[1][1],
a + 1, (1 << (2 * a + 1)) - s->no_rounding,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
}
static inline int hpel_motion(MpegEncContext *s,
uint8_t *dest, uint8_t *src,
int src_x, int src_y,
op_pixels_func *pix_op,
int motion_x, int motion_y)
{
int dxy = 0;
int emu = 0;
src_x += motion_x >> 1;
src_y += motion_y >> 1;
/* WARNING: do no forget half pels */
src_x = av_clip(src_x, -16, s->width); // FIXME unneeded for emu?
if (src_x != s->width)
dxy |= motion_x & 1;
src_y = av_clip(src_y, -16, s->height);
if (src_y != s->height)
dxy |= (motion_y & 1) << 1;
src += src_y * s->linesize + src_x;
if (s->unrestricted_mv) {
if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 8, 0) ||
(unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 1) - 8, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, src,
s->linesize, s->linesize,
9, 9,
src_x, src_y, s->h_edge_pos,
s->v_edge_pos);
src = s->edge_emu_buffer;
emu = 1;
}
}
pix_op[dxy](dest, src, s->linesize, 8);
return emu;
}
static av_always_inline
void mpeg_motion_internal(MpegEncContext *s,
uint8_t *dest_y,
uint8_t *dest_cb,
uint8_t *dest_cr,
int field_based,
int bottom_field,
int field_select,
uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
int motion_x,
int motion_y,
int h,
int is_mpeg12,
int mb_y)
{
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int dxy, uvdxy, mx, my, src_x, src_y,
uvsrc_x, uvsrc_y, v_edge_pos;
ptrdiff_t uvlinesize, linesize;
#if 0
if (s->quarter_sample) {
motion_x >>= 1;
motion_y >>= 1;
}
#endif
v_edge_pos = s->v_edge_pos >> field_based;
linesize = s->current_picture.f.linesize[0] << field_based;
uvlinesize = s->current_picture.f.linesize[1] << field_based;
dxy = ((motion_y & 1) << 1) | (motion_x & 1);
src_x = s->mb_x * 16 + (motion_x >> 1);
src_y = (mb_y << (4 - field_based)) + (motion_y >> 1);
if (!is_mpeg12 && s->out_format == FMT_H263) {
if ((s->workaround_bugs & FF_BUG_HPEL_CHROMA) && field_based) {
mx = (motion_x >> 1) | (motion_x & 1);
my = motion_y >> 1;
uvdxy = ((my & 1) << 1) | (mx & 1);
uvsrc_x = s->mb_x * 8 + (mx >> 1);
uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
} else {
uvdxy = dxy | (motion_y & 2) | ((motion_x & 2) >> 1);
uvsrc_x = src_x >> 1;
uvsrc_y = src_y >> 1;
}
// Even chroma mv's are full pel in H261
} else if (!is_mpeg12 && s->out_format == FMT_H261) {
mx = motion_x / 4;
my = motion_y / 4;
uvdxy = 0;
uvsrc_x = s->mb_x * 8 + mx;
uvsrc_y = mb_y * 8 + my;
} else {
if (s->chroma_y_shift) {
mx = motion_x / 2;
my = motion_y / 2;
uvdxy = ((my & 1) << 1) | (mx & 1);
uvsrc_x = s->mb_x * 8 + (mx >> 1);
uvsrc_y = (mb_y << (3 - field_based)) + (my >> 1);
} else {
if (s->chroma_x_shift) {
// Chroma422
mx = motion_x / 2;
uvdxy = ((motion_y & 1) << 1) | (mx & 1);
uvsrc_x = s->mb_x * 8 + (mx >> 1);
uvsrc_y = src_y;
} else {
// Chroma444
uvdxy = dxy;
uvsrc_x = src_x;
uvsrc_y = src_y;
}
}
}
ptr_y = ref_picture[0] + src_y * linesize + src_x;
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 1) - 16, 0) ||
(unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 1) - h, 0)) {
if (is_mpeg12 ||
s->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
s->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
av_log(s->avctx, AV_LOG_DEBUG,
"MPEG motion vector out of boundary (%d %d)\n", src_x,
src_y);
return;
}
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
s->linesize, s->linesize,
17, 17 + field_based,
src_x, src_y << field_based,
s->h_edge_pos, s->v_edge_pos);
ptr_y = s->edge_emu_buffer;
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ptr_cb = uvbuf;
ptr_cr = uvbuf + 16;
}
}
/* FIXME use this for field pix too instead of the obnoxious hack which
* changes picture.data */
if (bottom_field) {
dest_y += s->linesize;
dest_cb += s->uvlinesize;
dest_cr += s->uvlinesize;
}
if (field_select) {
ptr_y += s->linesize;
ptr_cb += s->uvlinesize;
ptr_cr += s->uvlinesize;
}
pix_op[0][dxy](dest_y, ptr_y, linesize, h);
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
pix_op[s->chroma_x_shift][uvdxy]
(dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift);
pix_op[s->chroma_x_shift][uvdxy]
(dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift);
}
if (!is_mpeg12 && (CONFIG_H261_ENCODER || CONFIG_H261_DECODER) &&
s->out_format == FMT_H261) {
ff_h261_loop_filter(s);
}
}
/* apply one mpeg motion vector to the three components */
static void mpeg_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
int field_select, uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
int motion_x, int motion_y, int h, int mb_y)
{
#if !CONFIG_SMALL
if (s->out_format == FMT_MPEG1)
mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
field_select, ref_picture, pix_op,
motion_x, motion_y, h, 1, mb_y);
else
#endif
mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 0, 0,
field_select, ref_picture, pix_op,
motion_x, motion_y, h, 0, mb_y);
}
static void mpeg_motion_field(MpegEncContext *s, uint8_t *dest_y,
uint8_t *dest_cb, uint8_t *dest_cr,
int bottom_field, int field_select,
uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
int motion_x, int motion_y, int h, int mb_y)
{
#if !CONFIG_SMALL
if(s->out_format == FMT_MPEG1)
mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
bottom_field, field_select, ref_picture, pix_op,
motion_x, motion_y, h, 1, mb_y);
else
#endif
mpeg_motion_internal(s, dest_y, dest_cb, dest_cr, 1,
bottom_field, field_select, ref_picture, pix_op,
motion_x, motion_y, h, 0, mb_y);
}
// 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->obmc_scratchpad + 8 * (i & 1) +
s->linesize * 8 * (i >> 1);
hpel_motion(s, ptr[i], src, src_x, src_y, 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,
int field_based, int bottom_field,
int field_select, uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
qpel_mc_func (*qpix_op)[16],
int motion_x, int motion_y, int h)
{
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int dxy, uvdxy, mx, my, src_x, src_y, uvsrc_x, uvsrc_y, v_edge_pos;
ptrdiff_t linesize, uvlinesize;
dxy = ((motion_y & 3) << 2) | (motion_x & 3);
src_x = s->mb_x * 16 + (motion_x >> 2);
src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
v_edge_pos = s->v_edge_pos >> field_based;
linesize = s->linesize << field_based;
uvlinesize = s->uvlinesize << field_based;
if (field_based) {
mx = motion_x / 2;
my = motion_y >> 1;
} else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA2) {
static const int rtab[8] = { 0, 0, 1, 1, 0, 0, 0, 1 };
mx = (motion_x >> 1) + rtab[motion_x & 7];
my = (motion_y >> 1) + rtab[motion_y & 7];
} else if (s->workaround_bugs & FF_BUG_QPEL_CHROMA) {
mx = (motion_x >> 1) | (motion_x & 1);
my = (motion_y >> 1) | (motion_y & 1);
} else {
mx = motion_x / 2;
my = motion_y / 2;
}
mx = (mx >> 1) | (mx & 1);
my = (my >> 1) | (my & 1);
uvdxy = (mx & 1) | ((my & 1) << 1);
mx >>= 1;
my >>= 1;
uvsrc_x = s->mb_x * 8 + mx;
uvsrc_y = s->mb_y * (8 >> field_based) + my;
ptr_y = ref_picture[0] + src_y * linesize + src_x;
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 16, 0) ||
(unsigned)src_y > FFMAX(v_edge_pos - (motion_y & 3) - h, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr_y,
s->linesize, s->linesize,
17, 17 + field_based,
src_x, src_y << field_based,
s->h_edge_pos, s->v_edge_pos);
ptr_y = s->edge_emu_buffer;
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
uint8_t *uvbuf = s->edge_emu_buffer + 18 * s->linesize;
s->vdsp.emulated_edge_mc(uvbuf, ptr_cb,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
s->vdsp.emulated_edge_mc(uvbuf + 16, ptr_cr,
s->uvlinesize, s->uvlinesize,
9, 9 + field_based,
uvsrc_x, uvsrc_y << field_based,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
ptr_cb = uvbuf;
ptr_cr = uvbuf + 16;
}
}
if (!field_based)
qpix_op[0][dxy](dest_y, ptr_y, linesize);
else {
if (bottom_field) {
dest_y += s->linesize;
dest_cb += s->uvlinesize;
dest_cr += s->uvlinesize;
}
if (field_select) {
ptr_y += s->linesize;
ptr_cb += s->uvlinesize;
ptr_cr += s->uvlinesize;
}
// damn interlaced mode
// FIXME boundary mirroring is not exactly correct here
qpix_op[1][dxy](dest_y, ptr_y, linesize);
qpix_op[1][dxy](dest_y + 8, ptr_y + 8, linesize);
}
if (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
pix_op[1][uvdxy](dest_cr, ptr_cr, uvlinesize, h >> 1);
pix_op[1][uvdxy](dest_cb, ptr_cb, uvlinesize, h >> 1);
}
}
/**
* h263 chroma 4mv motion compensation.
*/
static 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)
{
uint8_t *ptr;
int src_x, src_y, dxy, emu = 0;
ptrdiff_t offset;
/* 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 = av_clip(src_x, -8, (s->width >> 1));
if (src_x == (s->width >> 1))
dxy &= ~1;
src_y = av_clip(src_y, -8, (s->height >> 1));
if (src_y == (s->height >> 1))
dxy &= ~2;
offset = src_y * s->uvlinesize + src_x;
ptr = ref_picture[1] + offset;
if ((unsigned)src_x > FFMAX((s->h_edge_pos >> 1) - (dxy & 1) - 8, 0) ||
(unsigned)src_y > FFMAX((s->v_edge_pos >> 1) - (dxy >> 1) - 8, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
s->uvlinesize, 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) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
s->uvlinesize, 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);
}
static inline void prefetch_motion(MpegEncContext *s, uint8_t **pix, int dir)
{
/* fetch pixels for estimated mv 4 macroblocks ahead
* optimized for 64byte cache lines */
const int shift = s->quarter_sample ? 2 : 1;
const int mx = (s->mv[dir][0][0] >> shift) + 16 * s->mb_x + 8;
const int my = (s->mv[dir][0][1] >> shift) + 16 * s->mb_y;
int off = mx + (my + (s->mb_x & 3) * 4) * s->linesize + 64;
s->vdsp.prefetch(pix[0] + off, s->linesize, 4);
off = (mx >> 1) + ((my >> 1) + (s->mb_x & 7)) * s->uvlinesize + 64;
s->vdsp.prefetch(pix[1] + off, pix[2] - pix[1], 2);
}
static inline void apply_obmc(MpegEncContext *s,
uint8_t *dest_y,
uint8_t *dest_cb,
uint8_t *dest_cr,
uint8_t **ref_picture,
op_pixels_func (*pix_op)[4])
{
LOCAL_ALIGNED_8(int16_t, mv_cache, [4], [4][2]);
Picture *cur_frame = &s->current_picture;
int mb_x = s->mb_x;
int mb_y = s->mb_y;
const int xy = mb_x + mb_y * s->mb_stride;
const int mot_stride = s->b8_stride;
const int mot_xy = mb_x * 2 + mb_y * 2 * mot_stride;
int mx, my, i;
assert(!s->mb_skipped);
AV_COPY32(mv_cache[1][1], cur_frame->motion_val[0][mot_xy]);
AV_COPY32(mv_cache[1][2], cur_frame->motion_val[0][mot_xy + 1]);
AV_COPY32(mv_cache[2][1],
cur_frame->motion_val[0][mot_xy + mot_stride]);
AV_COPY32(mv_cache[2][2],
cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
AV_COPY32(mv_cache[3][1],
cur_frame->motion_val[0][mot_xy + mot_stride]);
AV_COPY32(mv_cache[3][2],
cur_frame->motion_val[0][mot_xy + mot_stride + 1]);
if (mb_y == 0 || IS_INTRA(cur_frame->mb_type[xy - s->mb_stride])) {
AV_COPY32(mv_cache[0][1], mv_cache[1][1]);
AV_COPY32(mv_cache[0][2], mv_cache[1][2]);
} else {
AV_COPY32(mv_cache[0][1],
cur_frame->motion_val[0][mot_xy - mot_stride]);
AV_COPY32(mv_cache[0][2],
cur_frame->motion_val[0][mot_xy - mot_stride + 1]);
}
if (mb_x == 0 || IS_INTRA(cur_frame->mb_type[xy - 1])) {
AV_COPY32(mv_cache[1][0], mv_cache[1][1]);
AV_COPY32(mv_cache[2][0], mv_cache[2][1]);
} else {
AV_COPY32(mv_cache[1][0], cur_frame->motion_val[0][mot_xy - 1]);
AV_COPY32(mv_cache[2][0],
cur_frame->motion_val[0][mot_xy - 1 + mot_stride]);
}
if (mb_x + 1 >= s->mb_width || IS_INTRA(cur_frame->mb_type[xy + 1])) {
AV_COPY32(mv_cache[1][3], mv_cache[1][2]);
AV_COPY32(mv_cache[2][3], mv_cache[2][2]);
} else {
AV_COPY32(mv_cache[1][3], cur_frame->motion_val[0][mot_xy + 2]);
AV_COPY32(mv_cache[2][3],
cur_frame->motion_val[0][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 (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
chroma_4mv_motion(s, dest_cb, dest_cr,
ref_picture, pix_op[1],
mx, my);
}
static inline void apply_8x8(MpegEncContext *s,
uint8_t *dest_y,
uint8_t *dest_cb,
uint8_t *dest_cr,
int dir,
uint8_t **ref_picture,
qpel_mc_func (*qpix_op)[16],
op_pixels_func (*pix_op)[4])
{
int dxy, mx, my, src_x, src_y;
int i;
int mb_x = s->mb_x;
int mb_y = s->mb_y;
uint8_t *ptr, *dest;
mx = 0;
my = 0;
if (s->quarter_sample) {
for (i = 0; i < 4; i++) {
int motion_x = s->mv[dir][i][0];
int motion_y = s->mv[dir][i][1];
dxy = ((motion_y & 3) << 2) | (motion_x & 3);
src_x = mb_x * 16 + (motion_x >> 2) + (i & 1) * 8;
src_y = mb_y * 16 + (motion_y >> 2) + (i >> 1) * 8;
/* WARNING: do no forget half pels */
src_x = av_clip(src_x, -16, s->width);
if (src_x == s->width)
dxy &= ~3;
src_y = av_clip(src_y, -16, s->height);
if (src_y == s->height)
dxy &= ~12;
ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
if ((unsigned)src_x > FFMAX(s->h_edge_pos - (motion_x & 3) - 8, 0) ||
(unsigned)src_y > FFMAX(s->v_edge_pos - (motion_y & 3) - 8, 0)) {
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr,
s->linesize, 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;
qpix_op[1][dxy](dest, ptr, s->linesize);
mx += s->mv[dir][i][0] / 2;
my += s->mv[dir][i][1] / 2;
}
} else {
for (i = 0; i < 4; i++) {
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,
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 (!CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY))
chroma_4mv_motion(s, dest_cb, dest_cr,
ref_picture, pix_op[1], mx, my);
}
/**
* motion compensation of a single macroblock
* @param s context
* @param dest_y luma destination pointer
* @param dest_cb chroma cb/u destination pointer
* @param dest_cr chroma cr/v destination pointer
* @param dir direction (0->forward, 1->backward)
* @param ref_picture array[3] of pointers to the 3 planes of the reference picture
* @param pix_op halfpel motion compensation function (average or put normally)
* @param qpix_op qpel motion compensation function (average or put normally)
* the motion vectors are taken from s->mv and the MV type from s->mv_type
*/
static av_always_inline void MPV_motion_internal(MpegEncContext *s,
uint8_t *dest_y,
uint8_t *dest_cb,
uint8_t *dest_cr,
int dir,
uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
qpel_mc_func (*qpix_op)[16],
int is_mpeg12)
{
int i;
int mb_y = s->mb_y;
prefetch_motion(s, ref_picture, dir);
if (!is_mpeg12 && s->obmc && s->pict_type != AV_PICTURE_TYPE_B) {
apply_obmc(s, dest_y, dest_cb, dest_cr, ref_picture, pix_op);
return;
}
switch (s->mv_type) {
case MV_TYPE_16X16:
if (s->mcsel) {
if (s->real_sprite_warping_points == 1) {
gmc1_motion(s, dest_y, dest_cb, dest_cr,
ref_picture);
} else {
gmc_motion(s, dest_y, dest_cb, dest_cr,
ref_picture);
}
} else if (!is_mpeg12 && s->quarter_sample) {
qpel_motion(s, dest_y, dest_cb, dest_cr,
0, 0, 0,
ref_picture, pix_op, qpix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
} else if (!is_mpeg12 && (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) &&
s->mspel && s->codec_id == AV_CODEC_ID_WMV2) {
ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16);
} else {
mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y);
}
break;
case MV_TYPE_8X8:
if (!is_mpeg12)
apply_8x8(s, dest_y, dest_cb, dest_cr,
dir, ref_picture, qpix_op, pix_op);
break;
case MV_TYPE_FIELD:
if (s->picture_structure == PICT_FRAME) {
if (!is_mpeg12 && s->quarter_sample) {
for (i = 0; i < 2; i++)
qpel_motion(s, dest_y, dest_cb, dest_cr,
1, i, s->field_select[dir][i],
ref_picture, pix_op, qpix_op,
s->mv[dir][i][0], s->mv[dir][i][1], 8);
} else {
/* top field */
mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
0, s->field_select[dir][0],
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 8, mb_y);
/* bottom field */
mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
1, s->field_select[dir][1],
ref_picture, pix_op,
s->mv[dir][1][0], s->mv[dir][1][1], 8, mb_y);
}
} else {
if (s->picture_structure != s->field_select[dir][0] + 1 &&
s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
ref_picture = s->current_picture_ptr->f.data;
}
mpeg_motion(s, dest_y, dest_cb, dest_cr,
s->field_select[dir][0],
ref_picture, pix_op,
s->mv[dir][0][0], s->mv[dir][0][1], 16, mb_y >> 1);
}
break;
case MV_TYPE_16X8:
for (i = 0; i < 2; i++) {
uint8_t **ref2picture;
if (s->picture_structure == s->field_select[dir][i] + 1
|| s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
ref2picture = ref_picture;
} else {
ref2picture = s->current_picture_ptr->f.data;
}
mpeg_motion(s, dest_y, dest_cb, dest_cr,
s->field_select[dir][i],
ref2picture, pix_op,
s->mv[dir][i][0], s->mv[dir][i][1] + 16 * i,
8, mb_y >> 1);
dest_y += 16 * s->linesize;
dest_cb += (16 >> s->chroma_y_shift) * s->uvlinesize;
dest_cr += (16 >> s->chroma_y_shift) * s->uvlinesize;
}
break;
case MV_TYPE_DMV:
if (s->picture_structure == PICT_FRAME) {
for (i = 0; i < 2; i++) {
int j;
for (j = 0; j < 2; j++)
mpeg_motion_field(s, dest_y, dest_cb, dest_cr,
j, j ^ i, ref_picture, pix_op,
s->mv[dir][2 * i + j][0],
s->mv[dir][2 * i + j][1], 8, mb_y);
pix_op = s->hdsp.avg_pixels_tab;
}
} else {
for (i = 0; i < 2; i++) {
mpeg_motion(s, dest_y, dest_cb, dest_cr,
s->picture_structure != i + 1,
ref_picture, pix_op,
s->mv[dir][2 * i][0], s->mv[dir][2 * i][1],
16, mb_y >> 1);
// after put we make avg of the same block
pix_op = s->hdsp.avg_pixels_tab;
/* opposite parity is always in the same frame if this is
* second field */
if (!s->first_field) {
ref_picture = s->current_picture_ptr->f.data;
}
}
}
break;
default: assert(0);
}
}
void ff_MPV_motion(MpegEncContext *s,
uint8_t *dest_y, uint8_t *dest_cb,
uint8_t *dest_cr, int dir,
uint8_t **ref_picture,
op_pixels_func (*pix_op)[4],
qpel_mc_func (*qpix_op)[16])
{
#if !CONFIG_SMALL
if (s->out_format == FMT_MPEG1)
MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
ref_picture, pix_op, qpix_op, 1);
else
#endif
MPV_motion_internal(s, dest_y, dest_cb, dest_cr, dir,
ref_picture, pix_op, qpix_op, 0);
}
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