mirror of https://github.com/FFmpeg/FFmpeg.git
parent
7ae9791b64
commit
04d14c9b68
9 changed files with 5392 additions and 5210 deletions
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,353 @@ |
|||||||
|
/*
|
||||||
|
* VC-1 and WMV3 decoder |
||||||
|
* Copyright (c) 2011 Mashiat Sarker Shakkhar |
||||||
|
* Copyright (c) 2006-2007 Konstantin Shishkov |
||||||
|
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
||||||
|
* |
||||||
|
* 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 |
||||||
|
*/ |
||||||
|
|
||||||
|
/**
|
||||||
|
* @file |
||||||
|
* VC-1 and WMV3 loopfilter |
||||||
|
*/ |
||||||
|
|
||||||
|
#include "avcodec.h" |
||||||
|
#include "mpegvideo.h" |
||||||
|
#include "vc1.h" |
||||||
|
#include "vc1dsp.h" |
||||||
|
|
||||||
|
void ff_vc1_loop_filter_iblk(VC1Context *v, int pq) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int j; |
||||||
|
if (!s->first_slice_line) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0], s->linesize, pq); |
||||||
|
if (s->mb_x) |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize + 8, s->linesize, pq); |
||||||
|
for (j = 0; j < 2; j++) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1], s->uvlinesize, pq); |
||||||
|
if (s->mb_x) |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] + 8 * s->linesize, s->linesize, pq); |
||||||
|
|
||||||
|
if (s->mb_y == s->end_mb_y - 1) { |
||||||
|
if (s->mb_x) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0], s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[1], s->uvlinesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[2], s->uvlinesize, pq); |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] + 8, s->linesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void ff_vc1_loop_filter_iblk_delayed(VC1Context *v, int pq) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int j; |
||||||
|
|
||||||
|
/* The loopfilter runs 1 row and 1 column behind the overlap filter, which
|
||||||
|
* means it runs two rows/cols behind the decoding loop. */ |
||||||
|
if (!s->first_slice_line) { |
||||||
|
if (s->mb_x) { |
||||||
|
if (s->mb_y >= s->start_mb_y + 2) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq); |
||||||
|
|
||||||
|
if (s->mb_x >= 2) |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 16, s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize - 8, s->linesize, pq); |
||||||
|
for (j = 0; j < 2; j++) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq); |
||||||
|
if (s->mb_x >= 2) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 16 * s->uvlinesize - 8, s->uvlinesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize - 16, s->linesize, pq); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mb_x == s->mb_width - 1) { |
||||||
|
if (s->mb_y >= s->start_mb_y + 2) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
||||||
|
|
||||||
|
if (s->mb_x) |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize, s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 32 * s->linesize + 8, s->linesize, pq); |
||||||
|
for (j = 0; j < 2; j++) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
||||||
|
if (s->mb_x >= 2) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 16 * s->uvlinesize, s->uvlinesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_v_loop_filter16(s->dest[0] - 8 * s->linesize, s->linesize, pq); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mb_y == s->end_mb_y) { |
||||||
|
if (s->mb_x) { |
||||||
|
if (s->mb_x >= 2) |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 16, s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize - 8, s->linesize, pq); |
||||||
|
if (s->mb_x >= 2) { |
||||||
|
for (j = 0; j < 2; j++) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize - 8, s->uvlinesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mb_x == s->mb_width - 1) { |
||||||
|
if (s->mb_x) |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize, s->linesize, pq); |
||||||
|
v->vc1dsp.vc1_h_loop_filter16(s->dest[0] - 16 * s->linesize + 8, s->linesize, pq); |
||||||
|
if (s->mb_x) { |
||||||
|
for (j = 0; j < 2; j++) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(s->dest[j + 1] - 8 * s->uvlinesize, s->uvlinesize, pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void ff_vc1_smooth_overlap_filter_iblk(VC1Context *v) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int mb_pos; |
||||||
|
|
||||||
|
if (v->condover == CONDOVER_NONE) |
||||||
|
return; |
||||||
|
|
||||||
|
mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
||||||
|
|
||||||
|
/* Within a MB, the horizontal overlap always runs before the vertical.
|
||||||
|
* To accomplish that, we run the H on left and internal borders of the |
||||||
|
* currently decoded MB. Then, we wait for the next overlap iteration |
||||||
|
* to do H overlap on the right edge of this MB, before moving over and |
||||||
|
* running the V overlap. Therefore, the V overlap makes us trail by one |
||||||
|
* MB col and the H overlap filter makes us trail by one MB row. This |
||||||
|
* is reflected in the time at which we run the put_pixels loop. */ |
||||||
|
if (v->condover == CONDOVER_ALL || v->pq >= 9 || v->over_flags_plane[mb_pos]) { |
||||||
|
if (s->mb_x && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
||||||
|
v->over_flags_plane[mb_pos - 1])) { |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][1], |
||||||
|
v->block[v->cur_blk_idx][0]); |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][3], |
||||||
|
v->block[v->cur_blk_idx][2]); |
||||||
|
if (!(s->flags & CODEC_FLAG_GRAY)) { |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][4], |
||||||
|
v->block[v->cur_blk_idx][4]); |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->left_blk_idx][5], |
||||||
|
v->block[v->cur_blk_idx][5]); |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][0], |
||||||
|
v->block[v->cur_blk_idx][1]); |
||||||
|
v->vc1dsp.vc1_h_s_overlap(v->block[v->cur_blk_idx][2], |
||||||
|
v->block[v->cur_blk_idx][3]); |
||||||
|
|
||||||
|
if (s->mb_x == s->mb_width - 1) { |
||||||
|
if (!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
||||||
|
v->over_flags_plane[mb_pos - s->mb_stride])) { |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][2], |
||||||
|
v->block[v->cur_blk_idx][0]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][3], |
||||||
|
v->block[v->cur_blk_idx][1]); |
||||||
|
if (!(s->flags & CODEC_FLAG_GRAY)) { |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][4], |
||||||
|
v->block[v->cur_blk_idx][4]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->top_blk_idx][5], |
||||||
|
v->block[v->cur_blk_idx][5]); |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][0], |
||||||
|
v->block[v->cur_blk_idx][2]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->cur_blk_idx][1], |
||||||
|
v->block[v->cur_blk_idx][3]); |
||||||
|
} |
||||||
|
} |
||||||
|
if (s->mb_x && (v->condover == CONDOVER_ALL || v->over_flags_plane[mb_pos - 1])) { |
||||||
|
if (!s->first_slice_line && (v->condover == CONDOVER_ALL || v->pq >= 9 || |
||||||
|
v->over_flags_plane[mb_pos - s->mb_stride - 1])) { |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][2], |
||||||
|
v->block[v->left_blk_idx][0]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][3], |
||||||
|
v->block[v->left_blk_idx][1]); |
||||||
|
if (!(s->flags & CODEC_FLAG_GRAY)) { |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][4], |
||||||
|
v->block[v->left_blk_idx][4]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->topleft_blk_idx][5], |
||||||
|
v->block[v->left_blk_idx][5]); |
||||||
|
} |
||||||
|
} |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][0], |
||||||
|
v->block[v->left_blk_idx][2]); |
||||||
|
v->vc1dsp.vc1_v_s_overlap(v->block[v->left_blk_idx][1], |
||||||
|
v->block[v->left_blk_idx][3]); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline void vc1_apply_p_v_loop_filter(VC1Context *v, int block_num) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int mb_cbp = v->cbp[s->mb_x - s->mb_stride], |
||||||
|
block_cbp = mb_cbp >> (block_num * 4), bottom_cbp, |
||||||
|
mb_is_intra = v->is_intra[s->mb_x - s->mb_stride], |
||||||
|
block_is_intra = mb_is_intra >> (block_num * 4), bottom_is_intra; |
||||||
|
int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk; |
||||||
|
uint8_t *dst; |
||||||
|
|
||||||
|
if (block_num > 3) { |
||||||
|
dst = s->dest[block_num - 3]; |
||||||
|
} else { |
||||||
|
dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 8) * linesize; |
||||||
|
} |
||||||
|
if (s->mb_y != s->end_mb_y || block_num < 2) { |
||||||
|
int16_t (*mv)[2]; |
||||||
|
int mv_stride; |
||||||
|
|
||||||
|
if (block_num > 3) { |
||||||
|
bottom_cbp = v->cbp[s->mb_x] >> (block_num * 4); |
||||||
|
bottom_is_intra = v->is_intra[s->mb_x] >> (block_num * 4); |
||||||
|
mv = &v->luma_mv[s->mb_x - s->mb_stride]; |
||||||
|
mv_stride = s->mb_stride; |
||||||
|
} else { |
||||||
|
bottom_cbp = (block_num < 2) ? (mb_cbp >> ((block_num + 2) * 4)) |
||||||
|
: (v->cbp[s->mb_x] >> ((block_num - 2) * 4)); |
||||||
|
bottom_is_intra = (block_num < 2) ? (mb_is_intra >> ((block_num + 2) * 4)) |
||||||
|
: (v->is_intra[s->mb_x] >> ((block_num - 2) * 4)); |
||||||
|
mv_stride = s->b8_stride; |
||||||
|
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - 2 * mv_stride]; |
||||||
|
} |
||||||
|
|
||||||
|
if (bottom_is_intra & 1 || block_is_intra & 1 || |
||||||
|
mv[0][0] != mv[mv_stride][0] || mv[0][1] != mv[mv_stride][1]) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else { |
||||||
|
idx = ((bottom_cbp >> 2) | block_cbp) & 3; |
||||||
|
if (idx == 3) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else if (idx) { |
||||||
|
if (idx == 1) |
||||||
|
v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq); |
||||||
|
else |
||||||
|
v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
dst -= 4 * linesize; |
||||||
|
ttblk = (v->ttblk[s->mb_x - s->mb_stride] >> (block_num * 4)) & 0xF; |
||||||
|
if (ttblk == TT_4X4 || ttblk == TT_8X4) { |
||||||
|
idx = (block_cbp | (block_cbp >> 2)) & 3; |
||||||
|
if (idx == 3) { |
||||||
|
v->vc1dsp.vc1_v_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else if (idx) { |
||||||
|
if (idx == 1) |
||||||
|
v->vc1dsp.vc1_v_loop_filter4(dst + 4, linesize, v->pq); |
||||||
|
else |
||||||
|
v->vc1dsp.vc1_v_loop_filter4(dst, linesize, v->pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline void vc1_apply_p_h_loop_filter(VC1Context *v, int block_num) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int mb_cbp = v->cbp[s->mb_x - 1 - s->mb_stride], |
||||||
|
block_cbp = mb_cbp >> (block_num * 4), right_cbp, |
||||||
|
mb_is_intra = v->is_intra[s->mb_x - 1 - s->mb_stride], |
||||||
|
block_is_intra = mb_is_intra >> (block_num * 4), right_is_intra; |
||||||
|
int idx, linesize = block_num > 3 ? s->uvlinesize : s->linesize, ttblk; |
||||||
|
uint8_t *dst; |
||||||
|
|
||||||
|
if (block_num > 3) { |
||||||
|
dst = s->dest[block_num - 3] - 8 * linesize; |
||||||
|
} else { |
||||||
|
dst = s->dest[0] + (block_num & 1) * 8 + ((block_num & 2) * 4 - 16) * linesize - 8; |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mb_x != s->mb_width || !(block_num & 5)) { |
||||||
|
int16_t (*mv)[2]; |
||||||
|
|
||||||
|
if (block_num > 3) { |
||||||
|
right_cbp = v->cbp[s->mb_x - s->mb_stride] >> (block_num * 4); |
||||||
|
right_is_intra = v->is_intra[s->mb_x - s->mb_stride] >> (block_num * 4); |
||||||
|
mv = &v->luma_mv[s->mb_x - s->mb_stride - 1]; |
||||||
|
} else { |
||||||
|
right_cbp = (block_num & 1) ? (v->cbp[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) |
||||||
|
: (mb_cbp >> ((block_num + 1) * 4)); |
||||||
|
right_is_intra = (block_num & 1) ? (v->is_intra[s->mb_x - s->mb_stride] >> ((block_num - 1) * 4)) |
||||||
|
: (mb_is_intra >> ((block_num + 1) * 4)); |
||||||
|
mv = &s->current_picture.motion_val[0][s->block_index[block_num] - s->b8_stride * 2 - 2]; |
||||||
|
} |
||||||
|
if (block_is_intra & 1 || right_is_intra & 1 || mv[0][0] != mv[1][0] || mv[0][1] != mv[1][1]) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else { |
||||||
|
idx = ((right_cbp >> 1) | block_cbp) & 5; // FIXME check
|
||||||
|
if (idx == 5) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else if (idx) { |
||||||
|
if (idx == 1) |
||||||
|
v->vc1dsp.vc1_h_loop_filter4(dst + 4 * linesize, linesize, v->pq); |
||||||
|
else |
||||||
|
v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
dst -= 4; |
||||||
|
ttblk = (v->ttblk[s->mb_x - s->mb_stride - 1] >> (block_num * 4)) & 0xf; |
||||||
|
if (ttblk == TT_4X4 || ttblk == TT_4X8) { |
||||||
|
idx = (block_cbp | (block_cbp >> 1)) & 5; |
||||||
|
if (idx == 5) { |
||||||
|
v->vc1dsp.vc1_h_loop_filter8(dst, linesize, v->pq); |
||||||
|
} else if (idx) { |
||||||
|
if (idx == 1) |
||||||
|
v->vc1dsp.vc1_h_loop_filter4(dst + linesize * 4, linesize, v->pq); |
||||||
|
else |
||||||
|
v->vc1dsp.vc1_h_loop_filter4(dst, linesize, v->pq); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void ff_vc1_apply_p_loop_filter(VC1Context *v) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int i; |
||||||
|
|
||||||
|
for (i = 0; i < 6; i++) { |
||||||
|
vc1_apply_p_v_loop_filter(v, i); |
||||||
|
} |
||||||
|
|
||||||
|
/* V always precedes H, therefore we run H one MB before V;
|
||||||
|
* at the end of a row, we catch up to complete the row */ |
||||||
|
if (s->mb_x) { |
||||||
|
for (i = 0; i < 6; i++) { |
||||||
|
vc1_apply_p_h_loop_filter(v, i); |
||||||
|
} |
||||||
|
if (s->mb_x == s->mb_width - 1) { |
||||||
|
s->mb_x++; |
||||||
|
ff_update_block_index(s); |
||||||
|
for (i = 0; i < 6; i++) { |
||||||
|
vc1_apply_p_h_loop_filter(v, i); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
@ -0,0 +1,948 @@ |
|||||||
|
/*
|
||||||
|
* VC-1 and WMV3 decoder |
||||||
|
* Copyright (c) 2011 Mashiat Sarker Shakkhar |
||||||
|
* Copyright (c) 2006-2007 Konstantin Shishkov |
||||||
|
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
||||||
|
* |
||||||
|
* 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 |
||||||
|
*/ |
||||||
|
|
||||||
|
/**
|
||||||
|
* @file |
||||||
|
* VC-1 and WMV3 block decoding routines |
||||||
|
*/ |
||||||
|
|
||||||
|
#include "avcodec.h" |
||||||
|
#include "h264chroma.h" |
||||||
|
#include "mathops.h" |
||||||
|
#include "mpegvideo.h" |
||||||
|
#include "vc1.h" |
||||||
|
|
||||||
|
/** Do motion compensation over 1 macroblock
|
||||||
|
* Mostly adapted hpel_motion and qpel_motion from mpegvideo.c |
||||||
|
*/ |
||||||
|
void ff_vc1_mc_1mv(VC1Context *v, int dir) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
H264ChromaContext *h264chroma = &v->h264chroma; |
||||||
|
uint8_t *srcY, *srcU, *srcV; |
||||||
|
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
||||||
|
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
||||||
|
int i; |
||||||
|
uint8_t (*luty)[256], (*lutuv)[256]; |
||||||
|
int use_ic; |
||||||
|
|
||||||
|
if ((!v->field_mode || |
||||||
|
(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
||||||
|
!v->s.last_picture.f->data[0]) |
||||||
|
return; |
||||||
|
|
||||||
|
mx = s->mv[dir][0][0]; |
||||||
|
my = s->mv[dir][0][1]; |
||||||
|
|
||||||
|
// store motion vectors for further use in B frames
|
||||||
|
if (s->pict_type == AV_PICTURE_TYPE_P) { |
||||||
|
for (i = 0; i < 4; i++) { |
||||||
|
s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][0] = mx; |
||||||
|
s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][1] = my; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
uvmx = (mx + ((mx & 3) == 3)) >> 1; |
||||||
|
uvmy = (my + ((my & 3) == 3)) >> 1; |
||||||
|
v->luma_mv[s->mb_x][0] = uvmx; |
||||||
|
v->luma_mv[s->mb_x][1] = uvmy; |
||||||
|
|
||||||
|
if (v->field_mode && |
||||||
|
v->cur_field_type != v->ref_field_type[dir]) { |
||||||
|
my = my - 2 + 4 * v->cur_field_type; |
||||||
|
uvmy = uvmy - 2 + 4 * v->cur_field_type; |
||||||
|
} |
||||||
|
|
||||||
|
// fastuvmc shall be ignored for interlaced frame picture
|
||||||
|
if (v->fastuvmc && (v->fcm != ILACE_FRAME)) { |
||||||
|
uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1)); |
||||||
|
uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1)); |
||||||
|
} |
||||||
|
if (!dir) { |
||||||
|
if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
||||||
|
srcY = s->current_picture.f->data[0]; |
||||||
|
srcU = s->current_picture.f->data[1]; |
||||||
|
srcV = s->current_picture.f->data[2]; |
||||||
|
luty = v->curr_luty; |
||||||
|
lutuv = v->curr_lutuv; |
||||||
|
use_ic = v->curr_use_ic; |
||||||
|
} else { |
||||||
|
srcY = s->last_picture.f->data[0]; |
||||||
|
srcU = s->last_picture.f->data[1]; |
||||||
|
srcV = s->last_picture.f->data[2]; |
||||||
|
luty = v->last_luty; |
||||||
|
lutuv = v->last_lutuv; |
||||||
|
use_ic = v->last_use_ic; |
||||||
|
} |
||||||
|
} else { |
||||||
|
srcY = s->next_picture.f->data[0]; |
||||||
|
srcU = s->next_picture.f->data[1]; |
||||||
|
srcV = s->next_picture.f->data[2]; |
||||||
|
luty = v->next_luty; |
||||||
|
lutuv = v->next_lutuv; |
||||||
|
use_ic = v->next_use_ic; |
||||||
|
} |
||||||
|
|
||||||
|
if (!srcY || !srcU) { |
||||||
|
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
src_x = s->mb_x * 16 + (mx >> 2); |
||||||
|
src_y = s->mb_y * 16 + (my >> 2); |
||||||
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
||||||
|
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
||||||
|
|
||||||
|
if (v->profile != PROFILE_ADVANCED) { |
||||||
|
src_x = av_clip( src_x, -16, s->mb_width * 16); |
||||||
|
src_y = av_clip( src_y, -16, s->mb_height * 16); |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
||||||
|
} else { |
||||||
|
src_x = av_clip( src_x, -17, s->avctx->coded_width); |
||||||
|
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
||||||
|
} |
||||||
|
|
||||||
|
srcY += src_y * s->linesize + src_x; |
||||||
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
|
||||||
|
if (v->field_mode && v->ref_field_type[dir]) { |
||||||
|
srcY += s->current_picture_ptr->f->linesize[0]; |
||||||
|
srcU += s->current_picture_ptr->f->linesize[1]; |
||||||
|
srcV += s->current_picture_ptr->f->linesize[2]; |
||||||
|
} |
||||||
|
|
||||||
|
/* for grayscale we should not try to read from unknown area */ |
||||||
|
if (s->flags & CODEC_FLAG_GRAY) { |
||||||
|
srcU = s->edge_emu_buffer + 18 * s->linesize; |
||||||
|
srcV = s->edge_emu_buffer + 18 * s->linesize; |
||||||
|
} |
||||||
|
|
||||||
|
if (v->rangeredfrm || use_ic |
||||||
|
|| s->h_edge_pos < 22 || v_edge_pos < 22 |
||||||
|
|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel * 3 |
||||||
|
|| (unsigned)(src_y - 1) > v_edge_pos - (my&3) - 16 - 3) { |
||||||
|
uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize; |
||||||
|
|
||||||
|
srcY -= s->mspel * (1 + s->linesize); |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, |
||||||
|
s->linesize, s->linesize, |
||||||
|
17 + s->mspel * 2, 17 + s->mspel * 2, |
||||||
|
src_x - s->mspel, src_y - s->mspel, |
||||||
|
s->h_edge_pos, v_edge_pos); |
||||||
|
srcY = s->edge_emu_buffer; |
||||||
|
s->vdsp.emulated_edge_mc(uvbuf, srcU, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, |
||||||
|
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
s->vdsp.emulated_edge_mc(uvbuf + 16, srcV, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, |
||||||
|
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
srcU = uvbuf; |
||||||
|
srcV = uvbuf + 16; |
||||||
|
/* if we deal with range reduction we need to scale source blocks */ |
||||||
|
if (v->rangeredfrm) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 17 + s->mspel * 2; j++) { |
||||||
|
for (i = 0; i < 17 + s->mspel * 2; i++) |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src += s->linesize; |
||||||
|
} |
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src2[i] = ((src2[i] - 128) >> 1) + 128; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
/* if we deal with intensity compensation we need to scale source blocks */ |
||||||
|
if (use_ic) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 17 + s->mspel * 2; j++) { |
||||||
|
int f = v->field_mode ? v->ref_field_type[dir] : ((j + src_y - s->mspel) & 1) ; |
||||||
|
for (i = 0; i < 17 + s->mspel * 2; i++) |
||||||
|
src[i] = luty[f][src[i]]; |
||||||
|
src += s->linesize; |
||||||
|
} |
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
int f = v->field_mode ? v->ref_field_type[dir] : ((j + uvsrc_y) & 1); |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = lutuv[f][src[i]]; |
||||||
|
src2[i] = lutuv[f][src2[i]]; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
srcY += s->mspel * (1 + s->linesize); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mspel) { |
||||||
|
dxy = ((my & 3) << 2) | (mx & 3); |
||||||
|
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd); |
||||||
|
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd); |
||||||
|
srcY += s->linesize * 8; |
||||||
|
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd); |
||||||
|
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd); |
||||||
|
} else { // hpel mc - always used for luma
|
||||||
|
dxy = (my & 2) | ((mx & 2) >> 1); |
||||||
|
if (!v->rnd) |
||||||
|
s->hdsp.put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
||||||
|
else |
||||||
|
s->hdsp.put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->flags & CODEC_FLAG_GRAY) return; |
||||||
|
/* Chroma MC always uses qpel bilinear */ |
||||||
|
uvmx = (uvmx & 3) << 1; |
||||||
|
uvmy = (uvmy & 3) << 1; |
||||||
|
if (!v->rnd) { |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} else { |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static inline int median4(int a, int b, int c, int d) |
||||||
|
{ |
||||||
|
if (a < b) { |
||||||
|
if (c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2; |
||||||
|
else return (FFMIN(b, c) + FFMAX(a, d)) / 2; |
||||||
|
} else { |
||||||
|
if (c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2; |
||||||
|
else return (FFMIN(a, c) + FFMAX(b, d)) / 2; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/** Do motion compensation for 4-MV macroblock - luminance block
|
||||||
|
*/ |
||||||
|
void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
uint8_t *srcY; |
||||||
|
int dxy, mx, my, src_x, src_y; |
||||||
|
int off; |
||||||
|
int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0; |
||||||
|
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
||||||
|
uint8_t (*luty)[256]; |
||||||
|
int use_ic; |
||||||
|
|
||||||
|
if ((!v->field_mode || |
||||||
|
(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
||||||
|
!v->s.last_picture.f->data[0]) |
||||||
|
return; |
||||||
|
|
||||||
|
mx = s->mv[dir][n][0]; |
||||||
|
my = s->mv[dir][n][1]; |
||||||
|
|
||||||
|
if (!dir) { |
||||||
|
if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
||||||
|
srcY = s->current_picture.f->data[0]; |
||||||
|
luty = v->curr_luty; |
||||||
|
use_ic = v->curr_use_ic; |
||||||
|
} else { |
||||||
|
srcY = s->last_picture.f->data[0]; |
||||||
|
luty = v->last_luty; |
||||||
|
use_ic = v->last_use_ic; |
||||||
|
} |
||||||
|
} else { |
||||||
|
srcY = s->next_picture.f->data[0]; |
||||||
|
luty = v->next_luty; |
||||||
|
use_ic = v->next_use_ic; |
||||||
|
} |
||||||
|
|
||||||
|
if (!srcY) { |
||||||
|
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
if (v->field_mode) { |
||||||
|
if (v->cur_field_type != v->ref_field_type[dir]) |
||||||
|
my = my - 2 + 4 * v->cur_field_type; |
||||||
|
} |
||||||
|
|
||||||
|
if (s->pict_type == AV_PICTURE_TYPE_P && n == 3 && v->field_mode) { |
||||||
|
int same_count = 0, opp_count = 0, k; |
||||||
|
int chosen_mv[2][4][2], f; |
||||||
|
int tx, ty; |
||||||
|
for (k = 0; k < 4; k++) { |
||||||
|
f = v->mv_f[0][s->block_index[k] + v->blocks_off]; |
||||||
|
chosen_mv[f][f ? opp_count : same_count][0] = s->mv[0][k][0]; |
||||||
|
chosen_mv[f][f ? opp_count : same_count][1] = s->mv[0][k][1]; |
||||||
|
opp_count += f; |
||||||
|
same_count += 1 - f; |
||||||
|
} |
||||||
|
f = opp_count > same_count; |
||||||
|
switch (f ? opp_count : same_count) { |
||||||
|
case 4: |
||||||
|
tx = median4(chosen_mv[f][0][0], chosen_mv[f][1][0], |
||||||
|
chosen_mv[f][2][0], chosen_mv[f][3][0]); |
||||||
|
ty = median4(chosen_mv[f][0][1], chosen_mv[f][1][1], |
||||||
|
chosen_mv[f][2][1], chosen_mv[f][3][1]); |
||||||
|
break; |
||||||
|
case 3: |
||||||
|
tx = mid_pred(chosen_mv[f][0][0], chosen_mv[f][1][0], chosen_mv[f][2][0]); |
||||||
|
ty = mid_pred(chosen_mv[f][0][1], chosen_mv[f][1][1], chosen_mv[f][2][1]); |
||||||
|
break; |
||||||
|
case 2: |
||||||
|
tx = (chosen_mv[f][0][0] + chosen_mv[f][1][0]) / 2; |
||||||
|
ty = (chosen_mv[f][0][1] + chosen_mv[f][1][1]) / 2; |
||||||
|
break; |
||||||
|
} |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx; |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty; |
||||||
|
for (k = 0; k < 4; k++) |
||||||
|
v->mv_f[1][s->block_index[k] + v->blocks_off] = f; |
||||||
|
} |
||||||
|
|
||||||
|
if (v->fcm == ILACE_FRAME) { // not sure if needed for other types of picture
|
||||||
|
int qx, qy; |
||||||
|
int width = s->avctx->coded_width; |
||||||
|
int height = s->avctx->coded_height >> 1; |
||||||
|
if (s->pict_type == AV_PICTURE_TYPE_P) { |
||||||
|
s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][0] = mx; |
||||||
|
s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][1] = my; |
||||||
|
} |
||||||
|
qx = (s->mb_x * 16) + (mx >> 2); |
||||||
|
qy = (s->mb_y * 8) + (my >> 3); |
||||||
|
|
||||||
|
if (qx < -17) |
||||||
|
mx -= 4 * (qx + 17); |
||||||
|
else if (qx > width) |
||||||
|
mx -= 4 * (qx - width); |
||||||
|
if (qy < -18) |
||||||
|
my -= 8 * (qy + 18); |
||||||
|
else if (qy > height + 1) |
||||||
|
my -= 8 * (qy - height - 1); |
||||||
|
} |
||||||
|
|
||||||
|
if ((v->fcm == ILACE_FRAME) && fieldmv) |
||||||
|
off = ((n > 1) ? s->linesize : 0) + (n & 1) * 8; |
||||||
|
else |
||||||
|
off = s->linesize * 4 * (n & 2) + (n & 1) * 8; |
||||||
|
|
||||||
|
src_x = s->mb_x * 16 + (n & 1) * 8 + (mx >> 2); |
||||||
|
if (!fieldmv) |
||||||
|
src_y = s->mb_y * 16 + (n & 2) * 4 + (my >> 2); |
||||||
|
else |
||||||
|
src_y = s->mb_y * 16 + ((n > 1) ? 1 : 0) + (my >> 2); |
||||||
|
|
||||||
|
if (v->profile != PROFILE_ADVANCED) { |
||||||
|
src_x = av_clip(src_x, -16, s->mb_width * 16); |
||||||
|
src_y = av_clip(src_y, -16, s->mb_height * 16); |
||||||
|
} else { |
||||||
|
src_x = av_clip(src_x, -17, s->avctx->coded_width); |
||||||
|
if (v->fcm == ILACE_FRAME) { |
||||||
|
if (src_y & 1) |
||||||
|
src_y = av_clip(src_y, -17, s->avctx->coded_height + 1); |
||||||
|
else |
||||||
|
src_y = av_clip(src_y, -18, s->avctx->coded_height); |
||||||
|
} else { |
||||||
|
src_y = av_clip(src_y, -18, s->avctx->coded_height + 1); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
srcY += src_y * s->linesize + src_x; |
||||||
|
if (v->field_mode && v->ref_field_type[dir]) |
||||||
|
srcY += s->current_picture_ptr->f->linesize[0]; |
||||||
|
|
||||||
|
if (fieldmv && !(src_y & 1)) |
||||||
|
v_edge_pos--; |
||||||
|
if (fieldmv && (src_y & 1) && src_y < 4) |
||||||
|
src_y--; |
||||||
|
if (v->rangeredfrm || use_ic |
||||||
|
|| s->h_edge_pos < 13 || v_edge_pos < 23 |
||||||
|
|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx & 3) - 8 - s->mspel * 2 |
||||||
|
|| (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) { |
||||||
|
srcY -= s->mspel * (1 + (s->linesize << fieldmv)); |
||||||
|
/* check emulate edge stride and offset */ |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, |
||||||
|
s->linesize, s->linesize, |
||||||
|
9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv, |
||||||
|
src_x - s->mspel, src_y - (s->mspel << fieldmv), |
||||||
|
s->h_edge_pos, v_edge_pos); |
||||||
|
srcY = s->edge_emu_buffer; |
||||||
|
/* if we deal with range reduction we need to scale source blocks */ |
||||||
|
if (v->rangeredfrm) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 9 + s->mspel * 2; j++) { |
||||||
|
for (i = 0; i < 9 + s->mspel * 2; i++) |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src += s->linesize << fieldmv; |
||||||
|
} |
||||||
|
} |
||||||
|
/* if we deal with intensity compensation we need to scale source blocks */ |
||||||
|
if (use_ic) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 9 + s->mspel * 2; j++) { |
||||||
|
int f = v->field_mode ? v->ref_field_type[dir] : (((j<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1); |
||||||
|
for (i = 0; i < 9 + s->mspel * 2; i++) |
||||||
|
src[i] = luty[f][src[i]]; |
||||||
|
src += s->linesize << fieldmv; |
||||||
|
} |
||||||
|
} |
||||||
|
srcY += s->mspel * (1 + (s->linesize << fieldmv)); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->mspel) { |
||||||
|
dxy = ((my & 3) << 2) | (mx & 3); |
||||||
|
if (avg) |
||||||
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd); |
||||||
|
else |
||||||
|
v->vc1dsp.put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd); |
||||||
|
} else { // hpel mc - always used for luma
|
||||||
|
dxy = (my & 2) | ((mx & 2) >> 1); |
||||||
|
if (!v->rnd) |
||||||
|
s->hdsp.put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8); |
||||||
|
else |
||||||
|
s->hdsp.put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int get_chroma_mv(int *mvx, int *mvy, int *a, int flag, int *tx, int *ty) |
||||||
|
{ |
||||||
|
int idx, i; |
||||||
|
static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}; |
||||||
|
|
||||||
|
idx = ((a[3] != flag) << 3) |
||||||
|
| ((a[2] != flag) << 2) |
||||||
|
| ((a[1] != flag) << 1) |
||||||
|
| (a[0] != flag); |
||||||
|
if (!idx) { |
||||||
|
*tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]); |
||||||
|
*ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]); |
||||||
|
return 4; |
||||||
|
} else if (count[idx] == 1) { |
||||||
|
switch (idx) { |
||||||
|
case 0x1: |
||||||
|
*tx = mid_pred(mvx[1], mvx[2], mvx[3]); |
||||||
|
*ty = mid_pred(mvy[1], mvy[2], mvy[3]); |
||||||
|
return 3; |
||||||
|
case 0x2: |
||||||
|
*tx = mid_pred(mvx[0], mvx[2], mvx[3]); |
||||||
|
*ty = mid_pred(mvy[0], mvy[2], mvy[3]); |
||||||
|
return 3; |
||||||
|
case 0x4: |
||||||
|
*tx = mid_pred(mvx[0], mvx[1], mvx[3]); |
||||||
|
*ty = mid_pred(mvy[0], mvy[1], mvy[3]); |
||||||
|
return 3; |
||||||
|
case 0x8: |
||||||
|
*tx = mid_pred(mvx[0], mvx[1], mvx[2]); |
||||||
|
*ty = mid_pred(mvy[0], mvy[1], mvy[2]); |
||||||
|
return 3; |
||||||
|
} |
||||||
|
} else if (count[idx] == 2) { |
||||||
|
int t1 = 0, t2 = 0; |
||||||
|
for (i = 0; i < 3; i++) |
||||||
|
if (!a[i]) { |
||||||
|
t1 = i; |
||||||
|
break; |
||||||
|
} |
||||||
|
for (i = t1 + 1; i < 4; i++) |
||||||
|
if (!a[i]) { |
||||||
|
t2 = i; |
||||||
|
break; |
||||||
|
} |
||||||
|
*tx = (mvx[t1] + mvx[t2]) / 2; |
||||||
|
*ty = (mvy[t1] + mvy[t2]) / 2; |
||||||
|
return 2; |
||||||
|
} else { |
||||||
|
return 0; |
||||||
|
} |
||||||
|
return -1; |
||||||
|
} |
||||||
|
|
||||||
|
/** Do motion compensation for 4-MV macroblock - both chroma blocks
|
||||||
|
*/ |
||||||
|
void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
H264ChromaContext *h264chroma = &v->h264chroma; |
||||||
|
uint8_t *srcU, *srcV; |
||||||
|
int uvmx, uvmy, uvsrc_x, uvsrc_y; |
||||||
|
int k, tx = 0, ty = 0; |
||||||
|
int mvx[4], mvy[4], intra[4], mv_f[4]; |
||||||
|
int valid_count; |
||||||
|
int chroma_ref_type = v->cur_field_type; |
||||||
|
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
||||||
|
uint8_t (*lutuv)[256]; |
||||||
|
int use_ic; |
||||||
|
|
||||||
|
if (!v->field_mode && !v->s.last_picture.f->data[0]) |
||||||
|
return; |
||||||
|
if (s->flags & CODEC_FLAG_GRAY) |
||||||
|
return; |
||||||
|
|
||||||
|
for (k = 0; k < 4; k++) { |
||||||
|
mvx[k] = s->mv[dir][k][0]; |
||||||
|
mvy[k] = s->mv[dir][k][1]; |
||||||
|
intra[k] = v->mb_type[0][s->block_index[k]]; |
||||||
|
if (v->field_mode) |
||||||
|
mv_f[k] = v->mv_f[dir][s->block_index[k] + v->blocks_off]; |
||||||
|
} |
||||||
|
|
||||||
|
/* calculate chroma MV vector from four luma MVs */ |
||||||
|
if (!v->field_mode || (v->field_mode && !v->numref)) { |
||||||
|
valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty); |
||||||
|
chroma_ref_type = v->reffield; |
||||||
|
if (!valid_count) { |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0; |
||||||
|
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
||||||
|
return; //no need to do MC for intra blocks
|
||||||
|
} |
||||||
|
} else { |
||||||
|
int dominant = 0; |
||||||
|
if (mv_f[0] + mv_f[1] + mv_f[2] + mv_f[3] > 2) |
||||||
|
dominant = 1; |
||||||
|
valid_count = get_chroma_mv(mvx, mvy, mv_f, dominant, &tx, &ty); |
||||||
|
if (dominant) |
||||||
|
chroma_ref_type = !v->cur_field_type; |
||||||
|
} |
||||||
|
if (v->field_mode && chroma_ref_type == 1 && v->cur_field_type == 1 && !v->s.last_picture.f->data[0]) |
||||||
|
return; |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx; |
||||||
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty; |
||||||
|
uvmx = (tx + ((tx & 3) == 3)) >> 1; |
||||||
|
uvmy = (ty + ((ty & 3) == 3)) >> 1; |
||||||
|
|
||||||
|
v->luma_mv[s->mb_x][0] = uvmx; |
||||||
|
v->luma_mv[s->mb_x][1] = uvmy; |
||||||
|
|
||||||
|
if (v->fastuvmc) { |
||||||
|
uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1)); |
||||||
|
uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1)); |
||||||
|
} |
||||||
|
// Field conversion bias
|
||||||
|
if (v->cur_field_type != chroma_ref_type) |
||||||
|
uvmy += 2 - 4 * chroma_ref_type; |
||||||
|
|
||||||
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
||||||
|
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
||||||
|
|
||||||
|
if (v->profile != PROFILE_ADVANCED) { |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
||||||
|
} else { |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
||||||
|
} |
||||||
|
|
||||||
|
if (!dir) { |
||||||
|
if (v->field_mode && (v->cur_field_type != chroma_ref_type) && v->second_field) { |
||||||
|
srcU = s->current_picture.f->data[1]; |
||||||
|
srcV = s->current_picture.f->data[2]; |
||||||
|
lutuv = v->curr_lutuv; |
||||||
|
use_ic = v->curr_use_ic; |
||||||
|
} else { |
||||||
|
srcU = s->last_picture.f->data[1]; |
||||||
|
srcV = s->last_picture.f->data[2]; |
||||||
|
lutuv = v->last_lutuv; |
||||||
|
use_ic = v->last_use_ic; |
||||||
|
} |
||||||
|
} else { |
||||||
|
srcU = s->next_picture.f->data[1]; |
||||||
|
srcV = s->next_picture.f->data[2]; |
||||||
|
lutuv = v->next_lutuv; |
||||||
|
use_ic = v->next_use_ic; |
||||||
|
} |
||||||
|
|
||||||
|
if (!srcU) { |
||||||
|
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
|
||||||
|
if (v->field_mode) { |
||||||
|
if (chroma_ref_type) { |
||||||
|
srcU += s->current_picture_ptr->f->linesize[1]; |
||||||
|
srcV += s->current_picture_ptr->f->linesize[2]; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (v->rangeredfrm || use_ic |
||||||
|
|| s->h_edge_pos < 18 || v_edge_pos < 18 |
||||||
|
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9 |
||||||
|
|| (unsigned)uvsrc_y > (v_edge_pos >> 1) - 9) { |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
||||||
|
s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, uvsrc_x, uvsrc_y, |
||||||
|
s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
srcU = s->edge_emu_buffer; |
||||||
|
srcV = s->edge_emu_buffer + 16; |
||||||
|
|
||||||
|
/* if we deal with range reduction we need to scale source blocks */ |
||||||
|
if (v->rangeredfrm) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src2[i] = ((src2[i] - 128) >> 1) + 128; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
/* if we deal with intensity compensation we need to scale source blocks */ |
||||||
|
if (use_ic) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
int f = v->field_mode ? chroma_ref_type : ((j + uvsrc_y) & 1); |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = lutuv[f][src[i]]; |
||||||
|
src2[i] = lutuv[f][src2[i]]; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/* Chroma MC always uses qpel bilinear */ |
||||||
|
uvmx = (uvmx & 3) << 1; |
||||||
|
uvmy = (uvmy & 3) << 1; |
||||||
|
if (!v->rnd) { |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} else { |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/** Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)
|
||||||
|
*/ |
||||||
|
void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
H264ChromaContext *h264chroma = &v->h264chroma; |
||||||
|
uint8_t *srcU, *srcV; |
||||||
|
int uvsrc_x, uvsrc_y; |
||||||
|
int uvmx_field[4], uvmy_field[4]; |
||||||
|
int i, off, tx, ty; |
||||||
|
int fieldmv = v->blk_mv_type[s->block_index[0]]; |
||||||
|
static const int s_rndtblfield[16] = { 0, 0, 1, 2, 4, 4, 5, 6, 2, 2, 3, 8, 6, 6, 7, 12 }; |
||||||
|
int v_dist = fieldmv ? 1 : 4; // vertical offset for lower sub-blocks
|
||||||
|
int v_edge_pos = s->v_edge_pos >> 1; |
||||||
|
int use_ic; |
||||||
|
uint8_t (*lutuv)[256]; |
||||||
|
|
||||||
|
if (s->flags & CODEC_FLAG_GRAY) |
||||||
|
return; |
||||||
|
|
||||||
|
for (i = 0; i < 4; i++) { |
||||||
|
int d = i < 2 ? dir: dir2; |
||||||
|
tx = s->mv[d][i][0]; |
||||||
|
uvmx_field[i] = (tx + ((tx & 3) == 3)) >> 1; |
||||||
|
ty = s->mv[d][i][1]; |
||||||
|
if (fieldmv) |
||||||
|
uvmy_field[i] = (ty >> 4) * 8 + s_rndtblfield[ty & 0xF]; |
||||||
|
else |
||||||
|
uvmy_field[i] = (ty + ((ty & 3) == 3)) >> 1; |
||||||
|
} |
||||||
|
|
||||||
|
for (i = 0; i < 4; i++) { |
||||||
|
off = (i & 1) * 4 + ((i & 2) ? v_dist * s->uvlinesize : 0); |
||||||
|
uvsrc_x = s->mb_x * 8 + (i & 1) * 4 + (uvmx_field[i] >> 2); |
||||||
|
uvsrc_y = s->mb_y * 8 + ((i & 2) ? v_dist : 0) + (uvmy_field[i] >> 2); |
||||||
|
// FIXME: implement proper pull-back (see vc1cropmv.c, vc1CROPMV_ChromaPullBack())
|
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
||||||
|
if (i < 2 ? dir : dir2) { |
||||||
|
srcU = s->next_picture.f->data[1] + uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
srcV = s->next_picture.f->data[2] + uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
lutuv = v->next_lutuv; |
||||||
|
use_ic = v->next_use_ic; |
||||||
|
} else { |
||||||
|
srcU = s->last_picture.f->data[1] + uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
srcV = s->last_picture.f->data[2] + uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
lutuv = v->last_lutuv; |
||||||
|
use_ic = v->last_use_ic; |
||||||
|
} |
||||||
|
uvmx_field[i] = (uvmx_field[i] & 3) << 1; |
||||||
|
uvmy_field[i] = (uvmy_field[i] & 3) << 1; |
||||||
|
|
||||||
|
if (fieldmv && !(uvsrc_y & 1)) |
||||||
|
v_edge_pos--; |
||||||
|
if (fieldmv && (uvsrc_y & 1) && uvsrc_y < 2) |
||||||
|
uvsrc_y--; |
||||||
|
if (use_ic |
||||||
|
|| s->h_edge_pos < 10 || v_edge_pos < (5 << fieldmv) |
||||||
|
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 5 |
||||||
|
|| (unsigned)uvsrc_y > v_edge_pos - (5 << fieldmv)) { |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
5, (5 << fieldmv), uvsrc_x, uvsrc_y, |
||||||
|
s->h_edge_pos >> 1, v_edge_pos); |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
5, (5 << fieldmv), uvsrc_x, uvsrc_y, |
||||||
|
s->h_edge_pos >> 1, v_edge_pos); |
||||||
|
srcU = s->edge_emu_buffer; |
||||||
|
srcV = s->edge_emu_buffer + 16; |
||||||
|
|
||||||
|
/* if we deal with intensity compensation we need to scale source blocks */ |
||||||
|
if (use_ic) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 5; j++) { |
||||||
|
int f = (uvsrc_y + (j << fieldmv)) & 1; |
||||||
|
for (i = 0; i < 5; i++) { |
||||||
|
src[i] = lutuv[f][src[i]]; |
||||||
|
src2[i] = lutuv[f][src2[i]]; |
||||||
|
} |
||||||
|
src += s->uvlinesize << fieldmv; |
||||||
|
src2 += s->uvlinesize << fieldmv; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
if (avg) { |
||||||
|
if (!v->rnd) { |
||||||
|
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
} else { |
||||||
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
} |
||||||
|
} else { |
||||||
|
if (!v->rnd) { |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
} else { |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/** Motion compensation for direct or interpolated blocks in B-frames
|
||||||
|
*/ |
||||||
|
void ff_vc1_interp_mc(VC1Context *v) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
H264ChromaContext *h264chroma = &v->h264chroma; |
||||||
|
uint8_t *srcY, *srcU, *srcV; |
||||||
|
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
||||||
|
int off, off_uv; |
||||||
|
int v_edge_pos = s->v_edge_pos >> v->field_mode; |
||||||
|
int use_ic = v->next_use_ic; |
||||||
|
|
||||||
|
if (!v->field_mode && !v->s.next_picture.f->data[0]) |
||||||
|
return; |
||||||
|
|
||||||
|
mx = s->mv[1][0][0]; |
||||||
|
my = s->mv[1][0][1]; |
||||||
|
uvmx = (mx + ((mx & 3) == 3)) >> 1; |
||||||
|
uvmy = (my + ((my & 3) == 3)) >> 1; |
||||||
|
if (v->field_mode) { |
||||||
|
if (v->cur_field_type != v->ref_field_type[1]) |
||||||
|
my = my - 2 + 4 * v->cur_field_type; |
||||||
|
uvmy = uvmy - 2 + 4 * v->cur_field_type; |
||||||
|
} |
||||||
|
if (v->fastuvmc) { |
||||||
|
uvmx = uvmx + ((uvmx < 0) ? -(uvmx & 1) : (uvmx & 1)); |
||||||
|
uvmy = uvmy + ((uvmy < 0) ? -(uvmy & 1) : (uvmy & 1)); |
||||||
|
} |
||||||
|
srcY = s->next_picture.f->data[0]; |
||||||
|
srcU = s->next_picture.f->data[1]; |
||||||
|
srcV = s->next_picture.f->data[2]; |
||||||
|
|
||||||
|
src_x = s->mb_x * 16 + (mx >> 2); |
||||||
|
src_y = s->mb_y * 16 + (my >> 2); |
||||||
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2); |
||||||
|
uvsrc_y = s->mb_y * 8 + (uvmy >> 2); |
||||||
|
|
||||||
|
if (v->profile != PROFILE_ADVANCED) { |
||||||
|
src_x = av_clip( src_x, -16, s->mb_width * 16); |
||||||
|
src_y = av_clip( src_y, -16, s->mb_height * 16); |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); |
||||||
|
} else { |
||||||
|
src_x = av_clip( src_x, -17, s->avctx->coded_width); |
||||||
|
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); |
||||||
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); |
||||||
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); |
||||||
|
} |
||||||
|
|
||||||
|
srcY += src_y * s->linesize + src_x; |
||||||
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x; |
||||||
|
|
||||||
|
if (v->field_mode && v->ref_field_type[1]) { |
||||||
|
srcY += s->current_picture_ptr->f->linesize[0]; |
||||||
|
srcU += s->current_picture_ptr->f->linesize[1]; |
||||||
|
srcV += s->current_picture_ptr->f->linesize[2]; |
||||||
|
} |
||||||
|
|
||||||
|
/* for grayscale we should not try to read from unknown area */ |
||||||
|
if (s->flags & CODEC_FLAG_GRAY) { |
||||||
|
srcU = s->edge_emu_buffer + 18 * s->linesize; |
||||||
|
srcV = s->edge_emu_buffer + 18 * s->linesize; |
||||||
|
} |
||||||
|
|
||||||
|
if (v->rangeredfrm || s->h_edge_pos < 22 || v_edge_pos < 22 || use_ic |
||||||
|
|| (unsigned)(src_x - 1) > s->h_edge_pos - (mx & 3) - 16 - 3 |
||||||
|
|| (unsigned)(src_y - 1) > v_edge_pos - (my & 3) - 16 - 3) { |
||||||
|
uint8_t *uvbuf = s->edge_emu_buffer + 19 * s->linesize; |
||||||
|
|
||||||
|
srcY -= s->mspel * (1 + s->linesize); |
||||||
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, |
||||||
|
s->linesize, s->linesize, |
||||||
|
17 + s->mspel * 2, 17 + s->mspel * 2, |
||||||
|
src_x - s->mspel, src_y - s->mspel, |
||||||
|
s->h_edge_pos, v_edge_pos); |
||||||
|
srcY = s->edge_emu_buffer; |
||||||
|
s->vdsp.emulated_edge_mc(uvbuf, srcU, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, |
||||||
|
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
s->vdsp.emulated_edge_mc(uvbuf + 16, srcV, |
||||||
|
s->uvlinesize, s->uvlinesize, |
||||||
|
8 + 1, 8 + 1, |
||||||
|
uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, v_edge_pos >> 1); |
||||||
|
srcU = uvbuf; |
||||||
|
srcV = uvbuf + 16; |
||||||
|
/* if we deal with range reduction we need to scale source blocks */ |
||||||
|
if (v->rangeredfrm) { |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 17 + s->mspel * 2; j++) { |
||||||
|
for (i = 0; i < 17 + s->mspel * 2; i++) |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src += s->linesize; |
||||||
|
} |
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = ((src[i] - 128) >> 1) + 128; |
||||||
|
src2[i] = ((src2[i] - 128) >> 1) + 128; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (use_ic) { |
||||||
|
uint8_t (*luty )[256] = v->next_luty; |
||||||
|
uint8_t (*lutuv)[256] = v->next_lutuv; |
||||||
|
int i, j; |
||||||
|
uint8_t *src, *src2; |
||||||
|
|
||||||
|
src = srcY; |
||||||
|
for (j = 0; j < 17 + s->mspel * 2; j++) { |
||||||
|
int f = v->field_mode ? v->ref_field_type[1] : ((j+src_y - s->mspel) & 1); |
||||||
|
for (i = 0; i < 17 + s->mspel * 2; i++) |
||||||
|
src[i] = luty[f][src[i]]; |
||||||
|
src += s->linesize; |
||||||
|
} |
||||||
|
src = srcU; |
||||||
|
src2 = srcV; |
||||||
|
for (j = 0; j < 9; j++) { |
||||||
|
int f = v->field_mode ? v->ref_field_type[1] : ((j+uvsrc_y) & 1); |
||||||
|
for (i = 0; i < 9; i++) { |
||||||
|
src[i] = lutuv[f][src[i]]; |
||||||
|
src2[i] = lutuv[f][src2[i]]; |
||||||
|
} |
||||||
|
src += s->uvlinesize; |
||||||
|
src2 += s->uvlinesize; |
||||||
|
} |
||||||
|
} |
||||||
|
srcY += s->mspel * (1 + s->linesize); |
||||||
|
} |
||||||
|
|
||||||
|
off = 0; |
||||||
|
off_uv = 0; |
||||||
|
|
||||||
|
if (s->mspel) { |
||||||
|
dxy = ((my & 3) << 2) | (mx & 3); |
||||||
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off , srcY , s->linesize, v->rnd); |
||||||
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8, srcY + 8, s->linesize, v->rnd); |
||||||
|
srcY += s->linesize * 8; |
||||||
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8 * s->linesize , srcY , s->linesize, v->rnd); |
||||||
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[dxy](s->dest[0] + off + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd); |
||||||
|
} else { // hpel mc
|
||||||
|
dxy = (my & 2) | ((mx & 2) >> 1); |
||||||
|
|
||||||
|
if (!v->rnd) |
||||||
|
s->hdsp.avg_pixels_tab[0][dxy](s->dest[0] + off, srcY, s->linesize, 16); |
||||||
|
else |
||||||
|
s->hdsp.avg_no_rnd_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, 16); |
||||||
|
} |
||||||
|
|
||||||
|
if (s->flags & CODEC_FLAG_GRAY) return; |
||||||
|
/* Chroma MC always uses qpel blilinear */ |
||||||
|
uvmx = (uvmx & 3) << 1; |
||||||
|
uvmy = (uvmy & 3) << 1; |
||||||
|
if (!v->rnd) { |
||||||
|
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} else { |
||||||
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy); |
||||||
|
} |
||||||
|
} |
@ -0,0 +1,959 @@ |
|||||||
|
/*
|
||||||
|
* VC-1 and WMV3 decoder |
||||||
|
* Copyright (c) 2011 Mashiat Sarker Shakkhar |
||||||
|
* Copyright (c) 2006-2007 Konstantin Shishkov |
||||||
|
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
||||||
|
* |
||||||
|
* 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 |
||||||
|
*/ |
||||||
|
|
||||||
|
/**
|
||||||
|
* @file |
||||||
|
* VC-1 and WMV3 block decoding routines |
||||||
|
*/ |
||||||
|
|
||||||
|
#include "mathops.h" |
||||||
|
#include "mpegutils.h" |
||||||
|
#include "mpegvideo.h" |
||||||
|
#include "vc1.h" |
||||||
|
#include "vc1_pred.h" |
||||||
|
#include "vc1data.h" |
||||||
|
|
||||||
|
static av_always_inline int scaleforsame_x(VC1Context *v, int n /* MV */, int dir) |
||||||
|
{ |
||||||
|
int scaledvalue, refdist; |
||||||
|
int scalesame1, scalesame2; |
||||||
|
int scalezone1_x, zone1offset_x; |
||||||
|
int table_index = dir ^ v->second_field; |
||||||
|
|
||||||
|
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
||||||
|
refdist = v->refdist; |
||||||
|
else |
||||||
|
refdist = dir ? v->brfd : v->frfd; |
||||||
|
if (refdist > 3) |
||||||
|
refdist = 3; |
||||||
|
scalesame1 = ff_vc1_field_mvpred_scales[table_index][1][refdist]; |
||||||
|
scalesame2 = ff_vc1_field_mvpred_scales[table_index][2][refdist]; |
||||||
|
scalezone1_x = ff_vc1_field_mvpred_scales[table_index][3][refdist]; |
||||||
|
zone1offset_x = ff_vc1_field_mvpred_scales[table_index][5][refdist]; |
||||||
|
|
||||||
|
if (FFABS(n) > 255) |
||||||
|
scaledvalue = n; |
||||||
|
else { |
||||||
|
if (FFABS(n) < scalezone1_x) |
||||||
|
scaledvalue = (n * scalesame1) >> 8; |
||||||
|
else { |
||||||
|
if (n < 0) |
||||||
|
scaledvalue = ((n * scalesame2) >> 8) - zone1offset_x; |
||||||
|
else |
||||||
|
scaledvalue = ((n * scalesame2) >> 8) + zone1offset_x; |
||||||
|
} |
||||||
|
} |
||||||
|
return av_clip(scaledvalue, -v->range_x, v->range_x - 1); |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int scaleforsame_y(VC1Context *v, int i, int n /* MV */, int dir) |
||||||
|
{ |
||||||
|
int scaledvalue, refdist; |
||||||
|
int scalesame1, scalesame2; |
||||||
|
int scalezone1_y, zone1offset_y; |
||||||
|
int table_index = dir ^ v->second_field; |
||||||
|
|
||||||
|
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
||||||
|
refdist = v->refdist; |
||||||
|
else |
||||||
|
refdist = dir ? v->brfd : v->frfd; |
||||||
|
if (refdist > 3) |
||||||
|
refdist = 3; |
||||||
|
scalesame1 = ff_vc1_field_mvpred_scales[table_index][1][refdist]; |
||||||
|
scalesame2 = ff_vc1_field_mvpred_scales[table_index][2][refdist]; |
||||||
|
scalezone1_y = ff_vc1_field_mvpred_scales[table_index][4][refdist]; |
||||||
|
zone1offset_y = ff_vc1_field_mvpred_scales[table_index][6][refdist]; |
||||||
|
|
||||||
|
if (FFABS(n) > 63) |
||||||
|
scaledvalue = n; |
||||||
|
else { |
||||||
|
if (FFABS(n) < scalezone1_y) |
||||||
|
scaledvalue = (n * scalesame1) >> 8; |
||||||
|
else { |
||||||
|
if (n < 0) |
||||||
|
scaledvalue = ((n * scalesame2) >> 8) - zone1offset_y; |
||||||
|
else |
||||||
|
scaledvalue = ((n * scalesame2) >> 8) + zone1offset_y; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (v->cur_field_type && !v->ref_field_type[dir]) |
||||||
|
return av_clip(scaledvalue, -v->range_y / 2 + 1, v->range_y / 2); |
||||||
|
else |
||||||
|
return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 - 1); |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int scaleforopp_x(VC1Context *v, int n /* MV */) |
||||||
|
{ |
||||||
|
int scalezone1_x, zone1offset_x; |
||||||
|
int scaleopp1, scaleopp2, brfd; |
||||||
|
int scaledvalue; |
||||||
|
|
||||||
|
brfd = FFMIN(v->brfd, 3); |
||||||
|
scalezone1_x = ff_vc1_b_field_mvpred_scales[3][brfd]; |
||||||
|
zone1offset_x = ff_vc1_b_field_mvpred_scales[5][brfd]; |
||||||
|
scaleopp1 = ff_vc1_b_field_mvpred_scales[1][brfd]; |
||||||
|
scaleopp2 = ff_vc1_b_field_mvpred_scales[2][brfd]; |
||||||
|
|
||||||
|
if (FFABS(n) > 255) |
||||||
|
scaledvalue = n; |
||||||
|
else { |
||||||
|
if (FFABS(n) < scalezone1_x) |
||||||
|
scaledvalue = (n * scaleopp1) >> 8; |
||||||
|
else { |
||||||
|
if (n < 0) |
||||||
|
scaledvalue = ((n * scaleopp2) >> 8) - zone1offset_x; |
||||||
|
else |
||||||
|
scaledvalue = ((n * scaleopp2) >> 8) + zone1offset_x; |
||||||
|
} |
||||||
|
} |
||||||
|
return av_clip(scaledvalue, -v->range_x, v->range_x - 1); |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int scaleforopp_y(VC1Context *v, int n /* MV */, int dir) |
||||||
|
{ |
||||||
|
int scalezone1_y, zone1offset_y; |
||||||
|
int scaleopp1, scaleopp2, brfd; |
||||||
|
int scaledvalue; |
||||||
|
|
||||||
|
brfd = FFMIN(v->brfd, 3); |
||||||
|
scalezone1_y = ff_vc1_b_field_mvpred_scales[4][brfd]; |
||||||
|
zone1offset_y = ff_vc1_b_field_mvpred_scales[6][brfd]; |
||||||
|
scaleopp1 = ff_vc1_b_field_mvpred_scales[1][brfd]; |
||||||
|
scaleopp2 = ff_vc1_b_field_mvpred_scales[2][brfd]; |
||||||
|
|
||||||
|
if (FFABS(n) > 63) |
||||||
|
scaledvalue = n; |
||||||
|
else { |
||||||
|
if (FFABS(n) < scalezone1_y) |
||||||
|
scaledvalue = (n * scaleopp1) >> 8; |
||||||
|
else { |
||||||
|
if (n < 0) |
||||||
|
scaledvalue = ((n * scaleopp2) >> 8) - zone1offset_y; |
||||||
|
else |
||||||
|
scaledvalue = ((n * scaleopp2) >> 8) + zone1offset_y; |
||||||
|
} |
||||||
|
} |
||||||
|
if (v->cur_field_type && !v->ref_field_type[dir]) { |
||||||
|
return av_clip(scaledvalue, -v->range_y / 2 + 1, v->range_y / 2); |
||||||
|
} else { |
||||||
|
return av_clip(scaledvalue, -v->range_y / 2, v->range_y / 2 - 1); |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int scaleforsame(VC1Context *v, int i, int n /* MV */, |
||||||
|
int dim, int dir) |
||||||
|
{ |
||||||
|
int brfd, scalesame; |
||||||
|
int hpel = 1 - v->s.quarter_sample; |
||||||
|
|
||||||
|
n >>= hpel; |
||||||
|
if (v->s.pict_type != AV_PICTURE_TYPE_B || v->second_field || !dir) { |
||||||
|
if (dim) |
||||||
|
n = scaleforsame_y(v, i, n, dir) << hpel; |
||||||
|
else |
||||||
|
n = scaleforsame_x(v, n, dir) << hpel; |
||||||
|
return n; |
||||||
|
} |
||||||
|
brfd = FFMIN(v->brfd, 3); |
||||||
|
scalesame = ff_vc1_b_field_mvpred_scales[0][brfd]; |
||||||
|
|
||||||
|
n = (n * scalesame >> 8) << hpel; |
||||||
|
return n; |
||||||
|
} |
||||||
|
|
||||||
|
static av_always_inline int scaleforopp(VC1Context *v, int n /* MV */, |
||||||
|
int dim, int dir) |
||||||
|
{ |
||||||
|
int refdist, scaleopp; |
||||||
|
int hpel = 1 - v->s.quarter_sample; |
||||||
|
|
||||||
|
n >>= hpel; |
||||||
|
if (v->s.pict_type == AV_PICTURE_TYPE_B && !v->second_field && dir == 1) { |
||||||
|
if (dim) |
||||||
|
n = scaleforopp_y(v, n, dir) << hpel; |
||||||
|
else |
||||||
|
n = scaleforopp_x(v, n) << hpel; |
||||||
|
return n; |
||||||
|
} |
||||||
|
if (v->s.pict_type != AV_PICTURE_TYPE_B) |
||||||
|
refdist = FFMIN(v->refdist, 3); |
||||||
|
else |
||||||
|
refdist = dir ? v->brfd : v->frfd; |
||||||
|
scaleopp = ff_vc1_field_mvpred_scales[dir ^ v->second_field][0][refdist]; |
||||||
|
|
||||||
|
n = (n * scaleopp >> 8) << hpel; |
||||||
|
return n; |
||||||
|
} |
||||||
|
|
||||||
|
/** Predict and set motion vector
|
||||||
|
*/ |
||||||
|
void ff_vc1_pred_mv(VC1Context *v, int n, int dmv_x, int dmv_y, |
||||||
|
int mv1, int r_x, int r_y, uint8_t* is_intra, |
||||||
|
int pred_flag, int dir) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int xy, wrap, off = 0; |
||||||
|
int16_t *A, *B, *C; |
||||||
|
int px, py; |
||||||
|
int sum; |
||||||
|
int mixedmv_pic, num_samefield = 0, num_oppfield = 0; |
||||||
|
int opposite, a_f, b_f, c_f; |
||||||
|
int16_t field_predA[2]; |
||||||
|
int16_t field_predB[2]; |
||||||
|
int16_t field_predC[2]; |
||||||
|
int a_valid, b_valid, c_valid; |
||||||
|
int hybridmv_thresh, y_bias = 0; |
||||||
|
|
||||||
|
if (v->mv_mode == MV_PMODE_MIXED_MV || |
||||||
|
((v->mv_mode == MV_PMODE_INTENSITY_COMP) && (v->mv_mode2 == MV_PMODE_MIXED_MV))) |
||||||
|
mixedmv_pic = 1; |
||||||
|
else |
||||||
|
mixedmv_pic = 0; |
||||||
|
/* scale MV difference to be quad-pel */ |
||||||
|
dmv_x <<= 1 - s->quarter_sample; |
||||||
|
dmv_y <<= 1 - s->quarter_sample; |
||||||
|
|
||||||
|
wrap = s->b8_stride; |
||||||
|
xy = s->block_index[n]; |
||||||
|
|
||||||
|
if (s->mb_intra) { |
||||||
|
s->mv[0][n][0] = s->current_picture.motion_val[0][xy + v->blocks_off][0] = 0; |
||||||
|
s->mv[0][n][1] = s->current_picture.motion_val[0][xy + v->blocks_off][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][1] = 0; |
||||||
|
if (mv1) { /* duplicate motion data for 1-MV block */ |
||||||
|
s->current_picture.motion_val[0][xy + 1 + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + 1 + v->blocks_off][1] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + v->blocks_off][1] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + 1 + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + 1 + v->blocks_off][1] = 0; |
||||||
|
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + 1 + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + 1 + v->blocks_off][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap + v->blocks_off][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap + 1 + v->blocks_off][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap + 1 + v->blocks_off][1] = 0; |
||||||
|
} |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
C = s->current_picture.motion_val[dir][xy - 1 + v->blocks_off]; |
||||||
|
A = s->current_picture.motion_val[dir][xy - wrap + v->blocks_off]; |
||||||
|
if (mv1) { |
||||||
|
if (v->field_mode && mixedmv_pic) |
||||||
|
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
||||||
|
else |
||||||
|
off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2; |
||||||
|
} else { |
||||||
|
//in 4-MV mode different blocks have different B predictor position
|
||||||
|
switch (n) { |
||||||
|
case 0: |
||||||
|
off = (s->mb_x > 0) ? -1 : 1; |
||||||
|
break; |
||||||
|
case 1: |
||||||
|
off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1; |
||||||
|
break; |
||||||
|
case 2: |
||||||
|
off = 1; |
||||||
|
break; |
||||||
|
case 3: |
||||||
|
off = -1; |
||||||
|
} |
||||||
|
} |
||||||
|
B = s->current_picture.motion_val[dir][xy - wrap + off + v->blocks_off]; |
||||||
|
|
||||||
|
a_valid = !s->first_slice_line || (n == 2 || n == 3); |
||||||
|
b_valid = a_valid && (s->mb_width > 1); |
||||||
|
c_valid = s->mb_x || (n == 1 || n == 3); |
||||||
|
if (v->field_mode) { |
||||||
|
a_valid = a_valid && !is_intra[xy - wrap]; |
||||||
|
b_valid = b_valid && !is_intra[xy - wrap + off]; |
||||||
|
c_valid = c_valid && !is_intra[xy - 1]; |
||||||
|
} |
||||||
|
|
||||||
|
if (a_valid) { |
||||||
|
a_f = v->mv_f[dir][xy - wrap + v->blocks_off]; |
||||||
|
num_oppfield += a_f; |
||||||
|
num_samefield += 1 - a_f; |
||||||
|
field_predA[0] = A[0]; |
||||||
|
field_predA[1] = A[1]; |
||||||
|
} else { |
||||||
|
field_predA[0] = field_predA[1] = 0; |
||||||
|
a_f = 0; |
||||||
|
} |
||||||
|
if (b_valid) { |
||||||
|
b_f = v->mv_f[dir][xy - wrap + off + v->blocks_off]; |
||||||
|
num_oppfield += b_f; |
||||||
|
num_samefield += 1 - b_f; |
||||||
|
field_predB[0] = B[0]; |
||||||
|
field_predB[1] = B[1]; |
||||||
|
} else { |
||||||
|
field_predB[0] = field_predB[1] = 0; |
||||||
|
b_f = 0; |
||||||
|
} |
||||||
|
if (c_valid) { |
||||||
|
c_f = v->mv_f[dir][xy - 1 + v->blocks_off]; |
||||||
|
num_oppfield += c_f; |
||||||
|
num_samefield += 1 - c_f; |
||||||
|
field_predC[0] = C[0]; |
||||||
|
field_predC[1] = C[1]; |
||||||
|
} else { |
||||||
|
field_predC[0] = field_predC[1] = 0; |
||||||
|
c_f = 0; |
||||||
|
} |
||||||
|
|
||||||
|
if (v->field_mode) { |
||||||
|
if (!v->numref) |
||||||
|
// REFFIELD determines if the last field or the second-last field is
|
||||||
|
// to be used as reference
|
||||||
|
opposite = 1 - v->reffield; |
||||||
|
else { |
||||||
|
if (num_samefield <= num_oppfield) |
||||||
|
opposite = 1 - pred_flag; |
||||||
|
else |
||||||
|
opposite = pred_flag; |
||||||
|
} |
||||||
|
} else |
||||||
|
opposite = 0; |
||||||
|
if (opposite) { |
||||||
|
if (a_valid && !a_f) { |
||||||
|
field_predA[0] = scaleforopp(v, field_predA[0], 0, dir); |
||||||
|
field_predA[1] = scaleforopp(v, field_predA[1], 1, dir); |
||||||
|
} |
||||||
|
if (b_valid && !b_f) { |
||||||
|
field_predB[0] = scaleforopp(v, field_predB[0], 0, dir); |
||||||
|
field_predB[1] = scaleforopp(v, field_predB[1], 1, dir); |
||||||
|
} |
||||||
|
if (c_valid && !c_f) { |
||||||
|
field_predC[0] = scaleforopp(v, field_predC[0], 0, dir); |
||||||
|
field_predC[1] = scaleforopp(v, field_predC[1], 1, dir); |
||||||
|
} |
||||||
|
v->mv_f[dir][xy + v->blocks_off] = 1; |
||||||
|
v->ref_field_type[dir] = !v->cur_field_type; |
||||||
|
} else { |
||||||
|
if (a_valid && a_f) { |
||||||
|
field_predA[0] = scaleforsame(v, n, field_predA[0], 0, dir); |
||||||
|
field_predA[1] = scaleforsame(v, n, field_predA[1], 1, dir); |
||||||
|
} |
||||||
|
if (b_valid && b_f) { |
||||||
|
field_predB[0] = scaleforsame(v, n, field_predB[0], 0, dir); |
||||||
|
field_predB[1] = scaleforsame(v, n, field_predB[1], 1, dir); |
||||||
|
} |
||||||
|
if (c_valid && c_f) { |
||||||
|
field_predC[0] = scaleforsame(v, n, field_predC[0], 0, dir); |
||||||
|
field_predC[1] = scaleforsame(v, n, field_predC[1], 1, dir); |
||||||
|
} |
||||||
|
v->mv_f[dir][xy + v->blocks_off] = 0; |
||||||
|
v->ref_field_type[dir] = v->cur_field_type; |
||||||
|
} |
||||||
|
|
||||||
|
if (a_valid) { |
||||||
|
px = field_predA[0]; |
||||||
|
py = field_predA[1]; |
||||||
|
} else if (c_valid) { |
||||||
|
px = field_predC[0]; |
||||||
|
py = field_predC[1]; |
||||||
|
} else if (b_valid) { |
||||||
|
px = field_predB[0]; |
||||||
|
py = field_predB[1]; |
||||||
|
} else { |
||||||
|
px = 0; |
||||||
|
py = 0; |
||||||
|
} |
||||||
|
|
||||||
|
if (num_samefield + num_oppfield > 1) { |
||||||
|
px = mid_pred(field_predA[0], field_predB[0], field_predC[0]); |
||||||
|
py = mid_pred(field_predA[1], field_predB[1], field_predC[1]); |
||||||
|
} |
||||||
|
|
||||||
|
/* Pullback MV as specified in 8.3.5.3.4 */ |
||||||
|
if (!v->field_mode) { |
||||||
|
int qx, qy, X, Y; |
||||||
|
qx = (s->mb_x << 6) + ((n == 1 || n == 3) ? 32 : 0); |
||||||
|
qy = (s->mb_y << 6) + ((n == 2 || n == 3) ? 32 : 0); |
||||||
|
X = (s->mb_width << 6) - 4; |
||||||
|
Y = (s->mb_height << 6) - 4; |
||||||
|
if (mv1) { |
||||||
|
if (qx + px < -60) px = -60 - qx; |
||||||
|
if (qy + py < -60) py = -60 - qy; |
||||||
|
} else { |
||||||
|
if (qx + px < -28) px = -28 - qx; |
||||||
|
if (qy + py < -28) py = -28 - qy; |
||||||
|
} |
||||||
|
if (qx + px > X) px = X - qx; |
||||||
|
if (qy + py > Y) py = Y - qy; |
||||||
|
} |
||||||
|
|
||||||
|
if (!v->field_mode || s->pict_type != AV_PICTURE_TYPE_B) { |
||||||
|
/* Calculate hybrid prediction as specified in 8.3.5.3.5 (also 10.3.5.4.3.5) */ |
||||||
|
hybridmv_thresh = 32; |
||||||
|
if (a_valid && c_valid) { |
||||||
|
if (is_intra[xy - wrap]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - field_predA[0]) + FFABS(py - field_predA[1]); |
||||||
|
if (sum > hybridmv_thresh) { |
||||||
|
if (get_bits1(&s->gb)) { // read HYBRIDPRED bit
|
||||||
|
px = field_predA[0]; |
||||||
|
py = field_predA[1]; |
||||||
|
} else { |
||||||
|
px = field_predC[0]; |
||||||
|
py = field_predC[1]; |
||||||
|
} |
||||||
|
} else { |
||||||
|
if (is_intra[xy - 1]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - field_predC[0]) + FFABS(py - field_predC[1]); |
||||||
|
if (sum > hybridmv_thresh) { |
||||||
|
if (get_bits1(&s->gb)) { |
||||||
|
px = field_predA[0]; |
||||||
|
py = field_predA[1]; |
||||||
|
} else { |
||||||
|
px = field_predC[0]; |
||||||
|
py = field_predC[1]; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
if (v->field_mode && v->numref) |
||||||
|
r_y >>= 1; |
||||||
|
if (v->field_mode && v->cur_field_type && v->ref_field_type[dir] == 0) |
||||||
|
y_bias = 1; |
||||||
|
/* store MV using signed modulus of MV range defined in 4.11 */ |
||||||
|
s->mv[dir][n][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x; |
||||||
|
s->mv[dir][n][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1] = ((py + dmv_y + r_y - y_bias) & ((r_y << 1) - 1)) - r_y + y_bias; |
||||||
|
if (mv1) { /* duplicate motion data for 1-MV block */ |
||||||
|
s->current_picture.motion_val[dir][xy + 1 + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + 1 + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + 1 + v->blocks_off][0] = s->current_picture.motion_val[dir][xy + v->blocks_off][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + 1 + v->blocks_off][1] = s->current_picture.motion_val[dir][xy + v->blocks_off][1]; |
||||||
|
v->mv_f[dir][xy + 1 + v->blocks_off] = v->mv_f[dir][xy + v->blocks_off]; |
||||||
|
v->mv_f[dir][xy + wrap + v->blocks_off] = v->mv_f[dir][xy + wrap + 1 + v->blocks_off] = v->mv_f[dir][xy + v->blocks_off]; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
/** Predict and set motion vector for interlaced frame picture MBs
|
||||||
|
*/ |
||||||
|
void ff_vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y, |
||||||
|
int mvn, int r_x, int r_y, uint8_t* is_intra, int dir) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int xy, wrap, off = 0; |
||||||
|
int A[2], B[2], C[2]; |
||||||
|
int px, py; |
||||||
|
int a_valid = 0, b_valid = 0, c_valid = 0; |
||||||
|
int field_a, field_b, field_c; // 0: same, 1: opposit
|
||||||
|
int total_valid, num_samefield, num_oppfield; |
||||||
|
int pos_c, pos_b, n_adj; |
||||||
|
|
||||||
|
wrap = s->b8_stride; |
||||||
|
xy = s->block_index[n]; |
||||||
|
|
||||||
|
if (s->mb_intra) { |
||||||
|
s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0; |
||||||
|
s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy][1] = 0; |
||||||
|
if (mvn == 1) { /* duplicate motion data for 1-MV block */ |
||||||
|
s->current_picture.motion_val[0][xy + 1][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + 1][1] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap][1] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + 1][0] = 0; |
||||||
|
s->current_picture.motion_val[0][xy + wrap + 1][1] = 0; |
||||||
|
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + 1][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + 1][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap][1] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap + 1][0] = 0; |
||||||
|
s->current_picture.motion_val[1][xy + wrap + 1][1] = 0; |
||||||
|
} |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
off = ((n == 0) || (n == 1)) ? 1 : -1; |
||||||
|
/* predict A */ |
||||||
|
if (s->mb_x || (n == 1) || (n == 3)) { |
||||||
|
if ((v->blk_mv_type[xy]) // current block (MB) has a field MV
|
||||||
|
|| (!v->blk_mv_type[xy] && !v->blk_mv_type[xy - 1])) { // or both have frame MV
|
||||||
|
A[0] = s->current_picture.motion_val[dir][xy - 1][0]; |
||||||
|
A[1] = s->current_picture.motion_val[dir][xy - 1][1]; |
||||||
|
a_valid = 1; |
||||||
|
} else { // current block has frame mv and cand. has field MV (so average)
|
||||||
|
A[0] = (s->current_picture.motion_val[dir][xy - 1][0] |
||||||
|
+ s->current_picture.motion_val[dir][xy - 1 + off * wrap][0] + 1) >> 1; |
||||||
|
A[1] = (s->current_picture.motion_val[dir][xy - 1][1] |
||||||
|
+ s->current_picture.motion_val[dir][xy - 1 + off * wrap][1] + 1) >> 1; |
||||||
|
a_valid = 1; |
||||||
|
} |
||||||
|
if (!(n & 1) && v->is_intra[s->mb_x - 1]) { |
||||||
|
a_valid = 0; |
||||||
|
A[0] = A[1] = 0; |
||||||
|
} |
||||||
|
} else |
||||||
|
A[0] = A[1] = 0; |
||||||
|
/* Predict B and C */ |
||||||
|
B[0] = B[1] = C[0] = C[1] = 0; |
||||||
|
if (n == 0 || n == 1 || v->blk_mv_type[xy]) { |
||||||
|
if (!s->first_slice_line) { |
||||||
|
if (!v->is_intra[s->mb_x - s->mb_stride]) { |
||||||
|
b_valid = 1; |
||||||
|
n_adj = n | 2; |
||||||
|
pos_b = s->block_index[n_adj] - 2 * wrap; |
||||||
|
if (v->blk_mv_type[pos_b] && v->blk_mv_type[xy]) { |
||||||
|
n_adj = (n & 2) | (n & 1); |
||||||
|
} |
||||||
|
B[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap][0]; |
||||||
|
B[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap][1]; |
||||||
|
if (v->blk_mv_type[pos_b] && !v->blk_mv_type[xy]) { |
||||||
|
B[0] = (B[0] + s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap][0] + 1) >> 1; |
||||||
|
B[1] = (B[1] + s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap][1] + 1) >> 1; |
||||||
|
} |
||||||
|
} |
||||||
|
if (s->mb_width > 1) { |
||||||
|
if (!v->is_intra[s->mb_x - s->mb_stride + 1]) { |
||||||
|
c_valid = 1; |
||||||
|
n_adj = 2; |
||||||
|
pos_c = s->block_index[2] - 2 * wrap + 2; |
||||||
|
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) { |
||||||
|
n_adj = n & 2; |
||||||
|
} |
||||||
|
C[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap + 2][0]; |
||||||
|
C[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap + 2][1]; |
||||||
|
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) { |
||||||
|
C[0] = (1 + C[0] + (s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap + 2][0])) >> 1; |
||||||
|
C[1] = (1 + C[1] + (s->current_picture.motion_val[dir][s->block_index[n_adj ^ 2] - 2 * wrap + 2][1])) >> 1; |
||||||
|
} |
||||||
|
if (s->mb_x == s->mb_width - 1) { |
||||||
|
if (!v->is_intra[s->mb_x - s->mb_stride - 1]) { |
||||||
|
c_valid = 1; |
||||||
|
n_adj = 3; |
||||||
|
pos_c = s->block_index[3] - 2 * wrap - 2; |
||||||
|
if (v->blk_mv_type[pos_c] && v->blk_mv_type[xy]) { |
||||||
|
n_adj = n | 1; |
||||||
|
} |
||||||
|
C[0] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap - 2][0]; |
||||||
|
C[1] = s->current_picture.motion_val[dir][s->block_index[n_adj] - 2 * wrap - 2][1]; |
||||||
|
if (v->blk_mv_type[pos_c] && !v->blk_mv_type[xy]) { |
||||||
|
C[0] = (1 + C[0] + s->current_picture.motion_val[dir][s->block_index[1] - 2 * wrap - 2][0]) >> 1; |
||||||
|
C[1] = (1 + C[1] + s->current_picture.motion_val[dir][s->block_index[1] - 2 * wrap - 2][1]) >> 1; |
||||||
|
} |
||||||
|
} else |
||||||
|
c_valid = 0; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} else { |
||||||
|
pos_b = s->block_index[1]; |
||||||
|
b_valid = 1; |
||||||
|
B[0] = s->current_picture.motion_val[dir][pos_b][0]; |
||||||
|
B[1] = s->current_picture.motion_val[dir][pos_b][1]; |
||||||
|
pos_c = s->block_index[0]; |
||||||
|
c_valid = 1; |
||||||
|
C[0] = s->current_picture.motion_val[dir][pos_c][0]; |
||||||
|
C[1] = s->current_picture.motion_val[dir][pos_c][1]; |
||||||
|
} |
||||||
|
|
||||||
|
total_valid = a_valid + b_valid + c_valid; |
||||||
|
// check if predictor A is out of bounds
|
||||||
|
if (!s->mb_x && !(n == 1 || n == 3)) { |
||||||
|
A[0] = A[1] = 0; |
||||||
|
} |
||||||
|
// check if predictor B is out of bounds
|
||||||
|
if ((s->first_slice_line && v->blk_mv_type[xy]) || (s->first_slice_line && !(n & 2))) { |
||||||
|
B[0] = B[1] = C[0] = C[1] = 0; |
||||||
|
} |
||||||
|
if (!v->blk_mv_type[xy]) { |
||||||
|
if (s->mb_width == 1) { |
||||||
|
px = B[0]; |
||||||
|
py = B[1]; |
||||||
|
} else { |
||||||
|
if (total_valid >= 2) { |
||||||
|
px = mid_pred(A[0], B[0], C[0]); |
||||||
|
py = mid_pred(A[1], B[1], C[1]); |
||||||
|
} else if (total_valid) { |
||||||
|
if (a_valid) { px = A[0]; py = A[1]; } |
||||||
|
if (b_valid) { px = B[0]; py = B[1]; } |
||||||
|
if (c_valid) { px = C[0]; py = C[1]; } |
||||||
|
} else |
||||||
|
px = py = 0; |
||||||
|
} |
||||||
|
} else { |
||||||
|
if (a_valid) |
||||||
|
field_a = (A[1] & 4) ? 1 : 0; |
||||||
|
else |
||||||
|
field_a = 0; |
||||||
|
if (b_valid) |
||||||
|
field_b = (B[1] & 4) ? 1 : 0; |
||||||
|
else |
||||||
|
field_b = 0; |
||||||
|
if (c_valid) |
||||||
|
field_c = (C[1] & 4) ? 1 : 0; |
||||||
|
else |
||||||
|
field_c = 0; |
||||||
|
|
||||||
|
num_oppfield = field_a + field_b + field_c; |
||||||
|
num_samefield = total_valid - num_oppfield; |
||||||
|
if (total_valid == 3) { |
||||||
|
if ((num_samefield == 3) || (num_oppfield == 3)) { |
||||||
|
px = mid_pred(A[0], B[0], C[0]); |
||||||
|
py = mid_pred(A[1], B[1], C[1]); |
||||||
|
} else if (num_samefield >= num_oppfield) { |
||||||
|
/* take one MV from same field set depending on priority
|
||||||
|
the check for B may not be necessary */ |
||||||
|
px = !field_a ? A[0] : B[0]; |
||||||
|
py = !field_a ? A[1] : B[1]; |
||||||
|
} else { |
||||||
|
px = field_a ? A[0] : B[0]; |
||||||
|
py = field_a ? A[1] : B[1]; |
||||||
|
} |
||||||
|
} else if (total_valid == 2) { |
||||||
|
if (num_samefield >= num_oppfield) { |
||||||
|
if (!field_a && a_valid) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else if (!field_b && b_valid) { |
||||||
|
px = B[0]; |
||||||
|
py = B[1]; |
||||||
|
} else if (c_valid) { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} else px = py = 0; |
||||||
|
} else { |
||||||
|
if (field_a && a_valid) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else if (field_b && b_valid) { |
||||||
|
px = B[0]; |
||||||
|
py = B[1]; |
||||||
|
} else if (c_valid) { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} else |
||||||
|
px = py = 0; |
||||||
|
} |
||||||
|
} else if (total_valid == 1) { |
||||||
|
px = (a_valid) ? A[0] : ((b_valid) ? B[0] : C[0]); |
||||||
|
py = (a_valid) ? A[1] : ((b_valid) ? B[1] : C[1]); |
||||||
|
} else |
||||||
|
px = py = 0; |
||||||
|
} |
||||||
|
|
||||||
|
/* store MV using signed modulus of MV range defined in 4.11 */ |
||||||
|
s->mv[dir][n][0] = s->current_picture.motion_val[dir][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x; |
||||||
|
s->mv[dir][n][1] = s->current_picture.motion_val[dir][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y; |
||||||
|
if (mvn == 1) { /* duplicate motion data for 1-MV block */ |
||||||
|
s->current_picture.motion_val[dir][xy + 1 ][0] = s->current_picture.motion_val[dir][xy][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + 1 ][1] = s->current_picture.motion_val[dir][xy][1]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap ][0] = s->current_picture.motion_val[dir][xy][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap ][1] = s->current_picture.motion_val[dir][xy][1]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + 1][0] = s->current_picture.motion_val[dir][xy][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + wrap + 1][1] = s->current_picture.motion_val[dir][xy][1]; |
||||||
|
} else if (mvn == 2) { /* duplicate motion data for 2-Field MV block */ |
||||||
|
s->current_picture.motion_val[dir][xy + 1][0] = s->current_picture.motion_val[dir][xy][0]; |
||||||
|
s->current_picture.motion_val[dir][xy + 1][1] = s->current_picture.motion_val[dir][xy][1]; |
||||||
|
s->mv[dir][n + 1][0] = s->mv[dir][n][0]; |
||||||
|
s->mv[dir][n + 1][1] = s->mv[dir][n][1]; |
||||||
|
} |
||||||
|
} |
||||||
|
|
||||||
|
void ff_vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], |
||||||
|
int direct, int mvtype) |
||||||
|
{ |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int xy, wrap, off = 0; |
||||||
|
int16_t *A, *B, *C; |
||||||
|
int px, py; |
||||||
|
int sum; |
||||||
|
int r_x, r_y; |
||||||
|
const uint8_t *is_intra = v->mb_type[0]; |
||||||
|
|
||||||
|
r_x = v->range_x; |
||||||
|
r_y = v->range_y; |
||||||
|
/* scale MV difference to be quad-pel */ |
||||||
|
dmv_x[0] <<= 1 - s->quarter_sample; |
||||||
|
dmv_y[0] <<= 1 - s->quarter_sample; |
||||||
|
dmv_x[1] <<= 1 - s->quarter_sample; |
||||||
|
dmv_y[1] <<= 1 - s->quarter_sample; |
||||||
|
|
||||||
|
wrap = s->b8_stride; |
||||||
|
xy = s->block_index[0]; |
||||||
|
|
||||||
|
if (s->mb_intra) { |
||||||
|
s->current_picture.motion_val[0][xy + v->blocks_off][0] = |
||||||
|
s->current_picture.motion_val[0][xy + v->blocks_off][1] = |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][0] = |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][1] = 0; |
||||||
|
return; |
||||||
|
} |
||||||
|
if (!v->field_mode) { |
||||||
|
s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample); |
||||||
|
s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample); |
||||||
|
s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample); |
||||||
|
s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample); |
||||||
|
|
||||||
|
/* Pullback predicted motion vectors as specified in 8.4.5.4 */ |
||||||
|
s->mv[0][0][0] = av_clip(s->mv[0][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); |
||||||
|
s->mv[0][0][1] = av_clip(s->mv[0][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6)); |
||||||
|
s->mv[1][0][0] = av_clip(s->mv[1][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); |
||||||
|
s->mv[1][0][1] = av_clip(s->mv[1][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6)); |
||||||
|
} |
||||||
|
if (direct) { |
||||||
|
s->current_picture.motion_val[0][xy + v->blocks_off][0] = s->mv[0][0][0]; |
||||||
|
s->current_picture.motion_val[0][xy + v->blocks_off][1] = s->mv[0][0][1]; |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][0] = s->mv[1][0][0]; |
||||||
|
s->current_picture.motion_val[1][xy + v->blocks_off][1] = s->mv[1][0][1]; |
||||||
|
return; |
||||||
|
} |
||||||
|
|
||||||
|
if ((mvtype == BMV_TYPE_FORWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) { |
||||||
|
C = s->current_picture.motion_val[0][xy - 2]; |
||||||
|
A = s->current_picture.motion_val[0][xy - wrap * 2]; |
||||||
|
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
||||||
|
B = s->current_picture.motion_val[0][xy - wrap * 2 + off]; |
||||||
|
|
||||||
|
if (!s->mb_x) C[0] = C[1] = 0; |
||||||
|
if (!s->first_slice_line) { // predictor A is not out of bounds
|
||||||
|
if (s->mb_width == 1) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = mid_pred(A[0], B[0], C[0]); |
||||||
|
py = mid_pred(A[1], B[1], C[1]); |
||||||
|
} |
||||||
|
} else if (s->mb_x) { // predictor C is not out of bounds
|
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} else { |
||||||
|
px = py = 0; |
||||||
|
} |
||||||
|
/* Pullback MV as specified in 8.3.5.3.4 */ |
||||||
|
{ |
||||||
|
int qx, qy, X, Y; |
||||||
|
if (v->profile < PROFILE_ADVANCED) { |
||||||
|
qx = (s->mb_x << 5); |
||||||
|
qy = (s->mb_y << 5); |
||||||
|
X = (s->mb_width << 5) - 4; |
||||||
|
Y = (s->mb_height << 5) - 4; |
||||||
|
if (qx + px < -28) px = -28 - qx; |
||||||
|
if (qy + py < -28) py = -28 - qy; |
||||||
|
if (qx + px > X) px = X - qx; |
||||||
|
if (qy + py > Y) py = Y - qy; |
||||||
|
} else { |
||||||
|
qx = (s->mb_x << 6); |
||||||
|
qy = (s->mb_y << 6); |
||||||
|
X = (s->mb_width << 6) - 4; |
||||||
|
Y = (s->mb_height << 6) - 4; |
||||||
|
if (qx + px < -60) px = -60 - qx; |
||||||
|
if (qy + py < -60) py = -60 - qy; |
||||||
|
if (qx + px > X) px = X - qx; |
||||||
|
if (qy + py > Y) py = Y - qy; |
||||||
|
} |
||||||
|
} |
||||||
|
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */ |
||||||
|
if (0 && !s->first_slice_line && s->mb_x) { |
||||||
|
if (is_intra[xy - wrap]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - A[0]) + FFABS(py - A[1]); |
||||||
|
if (sum > 32) { |
||||||
|
if (get_bits1(&s->gb)) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} |
||||||
|
} else { |
||||||
|
if (is_intra[xy - 2]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - C[0]) + FFABS(py - C[1]); |
||||||
|
if (sum > 32) { |
||||||
|
if (get_bits1(&s->gb)) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
/* store MV using signed modulus of MV range defined in 4.11 */ |
||||||
|
s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x; |
||||||
|
s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y; |
||||||
|
} |
||||||
|
if ((mvtype == BMV_TYPE_BACKWARD) || (mvtype == BMV_TYPE_INTERPOLATED)) { |
||||||
|
C = s->current_picture.motion_val[1][xy - 2]; |
||||||
|
A = s->current_picture.motion_val[1][xy - wrap * 2]; |
||||||
|
off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; |
||||||
|
B = s->current_picture.motion_val[1][xy - wrap * 2 + off]; |
||||||
|
|
||||||
|
if (!s->mb_x) |
||||||
|
C[0] = C[1] = 0; |
||||||
|
if (!s->first_slice_line) { // predictor A is not out of bounds
|
||||||
|
if (s->mb_width == 1) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = mid_pred(A[0], B[0], C[0]); |
||||||
|
py = mid_pred(A[1], B[1], C[1]); |
||||||
|
} |
||||||
|
} else if (s->mb_x) { // predictor C is not out of bounds
|
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} else { |
||||||
|
px = py = 0; |
||||||
|
} |
||||||
|
/* Pullback MV as specified in 8.3.5.3.4 */ |
||||||
|
{ |
||||||
|
int qx, qy, X, Y; |
||||||
|
if (v->profile < PROFILE_ADVANCED) { |
||||||
|
qx = (s->mb_x << 5); |
||||||
|
qy = (s->mb_y << 5); |
||||||
|
X = (s->mb_width << 5) - 4; |
||||||
|
Y = (s->mb_height << 5) - 4; |
||||||
|
if (qx + px < -28) px = -28 - qx; |
||||||
|
if (qy + py < -28) py = -28 - qy; |
||||||
|
if (qx + px > X) px = X - qx; |
||||||
|
if (qy + py > Y) py = Y - qy; |
||||||
|
} else { |
||||||
|
qx = (s->mb_x << 6); |
||||||
|
qy = (s->mb_y << 6); |
||||||
|
X = (s->mb_width << 6) - 4; |
||||||
|
Y = (s->mb_height << 6) - 4; |
||||||
|
if (qx + px < -60) px = -60 - qx; |
||||||
|
if (qy + py < -60) py = -60 - qy; |
||||||
|
if (qx + px > X) px = X - qx; |
||||||
|
if (qy + py > Y) py = Y - qy; |
||||||
|
} |
||||||
|
} |
||||||
|
/* Calculate hybrid prediction as specified in 8.3.5.3.5 */ |
||||||
|
if (0 && !s->first_slice_line && s->mb_x) { |
||||||
|
if (is_intra[xy - wrap]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - A[0]) + FFABS(py - A[1]); |
||||||
|
if (sum > 32) { |
||||||
|
if (get_bits1(&s->gb)) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} |
||||||
|
} else { |
||||||
|
if (is_intra[xy - 2]) |
||||||
|
sum = FFABS(px) + FFABS(py); |
||||||
|
else |
||||||
|
sum = FFABS(px - C[0]) + FFABS(py - C[1]); |
||||||
|
if (sum > 32) { |
||||||
|
if (get_bits1(&s->gb)) { |
||||||
|
px = A[0]; |
||||||
|
py = A[1]; |
||||||
|
} else { |
||||||
|
px = C[0]; |
||||||
|
py = C[1]; |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
} |
||||||
|
/* store MV using signed modulus of MV range defined in 4.11 */ |
||||||
|
|
||||||
|
s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x; |
||||||
|
s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y; |
||||||
|
} |
||||||
|
s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0]; |
||||||
|
s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1]; |
||||||
|
s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0]; |
||||||
|
s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1]; |
||||||
|
} |
||||||
|
|
||||||
|
void ff_vc1_pred_b_mv_intfi(VC1Context *v, int n, int *dmv_x, int *dmv_y, |
||||||
|
int mv1, int *pred_flag) |
||||||
|
{ |
||||||
|
int dir = (v->bmvtype == BMV_TYPE_BACKWARD) ? 1 : 0; |
||||||
|
MpegEncContext *s = &v->s; |
||||||
|
int mb_pos = s->mb_x + s->mb_y * s->mb_stride; |
||||||
|
|
||||||
|
if (v->bmvtype == BMV_TYPE_DIRECT) { |
||||||
|
int total_opp, k, f; |
||||||
|
if (s->next_picture.mb_type[mb_pos + v->mb_off] != MB_TYPE_INTRA) { |
||||||
|
s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][0], |
||||||
|
v->bfraction, 0, s->quarter_sample); |
||||||
|
s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][1], |
||||||
|
v->bfraction, 0, s->quarter_sample); |
||||||
|
s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][0], |
||||||
|
v->bfraction, 1, s->quarter_sample); |
||||||
|
s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][s->block_index[0] + v->blocks_off][1], |
||||||
|
v->bfraction, 1, s->quarter_sample); |
||||||
|
|
||||||
|
total_opp = v->mv_f_next[0][s->block_index[0] + v->blocks_off] |
||||||
|
+ v->mv_f_next[0][s->block_index[1] + v->blocks_off] |
||||||
|
+ v->mv_f_next[0][s->block_index[2] + v->blocks_off] |
||||||
|
+ v->mv_f_next[0][s->block_index[3] + v->blocks_off]; |
||||||
|
f = (total_opp > 2) ? 1 : 0; |
||||||
|
} else { |
||||||
|
s->mv[0][0][0] = s->mv[0][0][1] = 0; |
||||||
|
s->mv[1][0][0] = s->mv[1][0][1] = 0; |
||||||
|
f = 0; |
||||||
|
} |
||||||
|
v->ref_field_type[0] = v->ref_field_type[1] = v->cur_field_type ^ f; |
||||||
|
for (k = 0; k < 4; k++) { |
||||||
|
s->current_picture.motion_val[0][s->block_index[k] + v->blocks_off][0] = s->mv[0][0][0]; |
||||||
|
s->current_picture.motion_val[0][s->block_index[k] + v->blocks_off][1] = s->mv[0][0][1]; |
||||||
|
s->current_picture.motion_val[1][s->block_index[k] + v->blocks_off][0] = s->mv[1][0][0]; |
||||||
|
s->current_picture.motion_val[1][s->block_index[k] + v->blocks_off][1] = s->mv[1][0][1]; |
||||||
|
v->mv_f[0][s->block_index[k] + v->blocks_off] = f; |
||||||
|
v->mv_f[1][s->block_index[k] + v->blocks_off] = f; |
||||||
|
} |
||||||
|
return; |
||||||
|
} |
||||||
|
if (v->bmvtype == BMV_TYPE_INTERPOLATED) { |
||||||
|
ff_vc1_pred_mv(v, 0, dmv_x[0], dmv_y[0], 1, v->range_x, v->range_y, v->mb_type[0], pred_flag[0], 0); |
||||||
|
ff_vc1_pred_mv(v, 0, dmv_x[1], dmv_y[1], 1, v->range_x, v->range_y, v->mb_type[0], pred_flag[1], 1); |
||||||
|
return; |
||||||
|
} |
||||||
|
if (dir) { // backward
|
||||||
|
ff_vc1_pred_mv(v, n, dmv_x[1], dmv_y[1], mv1, v->range_x, v->range_y, v->mb_type[0], pred_flag[1], 1); |
||||||
|
if (n == 3 || mv1) { |
||||||
|
ff_vc1_pred_mv(v, 0, dmv_x[0], dmv_y[0], 1, v->range_x, v->range_y, v->mb_type[0], 0, 0); |
||||||
|
} |
||||||
|
} else { // forward
|
||||||
|
ff_vc1_pred_mv(v, n, dmv_x[0], dmv_y[0], mv1, v->range_x, v->range_y, v->mb_type[0], pred_flag[0], 0); |
||||||
|
if (n == 3 || mv1) { |
||||||
|
ff_vc1_pred_mv(v, 0, dmv_x[1], dmv_y[1], 1, v->range_x, v->range_y, v->mb_type[0], 0, 1); |
||||||
|
} |
||||||
|
} |
||||||
|
} |
@ -0,0 +1,59 @@ |
|||||||
|
/*
|
||||||
|
* VC-1 and WMV3 decoder |
||||||
|
* Copyright (c) 2006-2007 Konstantin Shishkov |
||||||
|
* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
||||||
|
* |
||||||
|
* 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 |
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef AVCODEC_VC1_PRED_H |
||||||
|
#define AVCODEC_VC1_PRED_H |
||||||
|
|
||||||
|
#include "vc1.h" |
||||||
|
#include "vc1data.h" |
||||||
|
|
||||||
|
void ff_vc1_pred_mv(VC1Context *v, int n, int dmv_x, int dmv_y, |
||||||
|
int mv1, int r_x, int r_y, uint8_t* is_intra, |
||||||
|
int pred_flag, int dir); |
||||||
|
void ff_vc1_pred_mv_intfr(VC1Context *v, int n, int dmv_x, int dmv_y, |
||||||
|
int mvn, int r_x, int r_y, uint8_t* is_intra, |
||||||
|
int dir); |
||||||
|
void ff_vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], |
||||||
|
int direct, int mvtype); |
||||||
|
void ff_vc1_pred_b_mv_intfi(VC1Context *v, int n, int *dmv_x, int *dmv_y, |
||||||
|
int mv1, int *pred_flag); |
||||||
|
|
||||||
|
static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs) |
||||||
|
{ |
||||||
|
int n = bfrac; |
||||||
|
|
||||||
|
#if B_FRACTION_DEN==256 |
||||||
|
if (inv) |
||||||
|
n -= 256; |
||||||
|
if (!qs) |
||||||
|
return 2 * ((value * n + 255) >> 9); |
||||||
|
return (value * n + 128) >> 8; |
||||||
|
#else |
||||||
|
if (inv) |
||||||
|
n -= B_FRACTION_DEN; |
||||||
|
if (!qs) |
||||||
|
return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN)); |
||||||
|
return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN; |
||||||
|
#endif |
||||||
|
} |
||||||
|
|
||||||
|
#endif /* AVCODEC_VC1_PRED_H */ |
File diff suppressed because it is too large
Load Diff
Loading…
Reference in new issue