chasing indexing error

1 files changed, 0 insertions, 990 deletions

diff --git a/ffmpeg/libavcodec/mpegvideo_motion.c b/ffmpeg/libavcodec/mpegvideo_motion.c
deleted file mode 100644
index 9ec3789..0000000
--- a/ffmpeg/libavcodec/mpegvideo_motion.c
+++ /dev/null
@@ -1,990 +0,0 @@
-/*
- * 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 FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <string.h>
-
-#include "libavutil/avassert.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->flags & CODEC_FLAG_EMU_EDGE) {
-        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];
-
-    av_assert2(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 (s->flags & CODEC_FLAG_EMU_EDGE) {
-        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;
-
-    av_assert2(!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 (s->flags & CODEC_FLAG_EMU_EDGE) {
-                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[0]) {
-                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) && ref_picture[0]) {
-                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 {
-            if (!ref_picture[0]) {
-                ref_picture = s->current_picture_ptr->f.data;
-            }
-            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: av_assert2(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);
-}