diff options
Diffstat (limited to 'ffmpeg1/libavcodec/h264_mvpred.h')
| -rw-r--r-- | ffmpeg1/libavcodec/h264_mvpred.h | 829 |
1 files changed, 0 insertions, 829 deletions
diff --git a/ffmpeg1/libavcodec/h264_mvpred.h b/ffmpeg1/libavcodec/h264_mvpred.h deleted file mode 100644 index 361c1d7..0000000 --- a/ffmpeg1/libavcodec/h264_mvpred.h +++ /dev/null @@ -1,829 +0,0 @@ -/* - * H.26L/H.264/AVC/JVT/14496-10/... motion vector predicion - * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * H.264 / AVC / MPEG4 part10 motion vector predicion. - * @author Michael Niedermayer <michaelni@gmx.at> - */ - -#ifndef AVCODEC_H264_MVPRED_H -#define AVCODEC_H264_MVPRED_H - -#include "internal.h" -#include "avcodec.h" -#include "h264.h" -#include "libavutil/avassert.h" - - -static av_always_inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, - int i, int list, int part_width) -{ - const int topright_ref = h->ref_cache[list][i - 8 + part_width]; - - /* there is no consistent mapping of mvs to neighboring locations that will - * make mbaff happy, so we can't move all this logic to fill_caches */ - if (FRAME_MBAFF(h)) { -#define SET_DIAG_MV(MV_OP, REF_OP, XY, Y4) \ - const int xy = XY, y4 = Y4; \ - const int mb_type = mb_types[xy + (y4 >> 2) * h->mb_stride]; \ - if (!USES_LIST(mb_type, list)) \ - return LIST_NOT_USED; \ - mv = h->cur_pic_ptr->motion_val[list][h->mb2b_xy[xy] + 3 + y4 * h->b_stride]; \ - h->mv_cache[list][scan8[0] - 2][0] = mv[0]; \ - h->mv_cache[list][scan8[0] - 2][1] = mv[1] MV_OP; \ - return h->cur_pic_ptr->ref_index[list][4 * xy + 1 + (y4 & ~1)] REF_OP; - - if (topright_ref == PART_NOT_AVAILABLE - && i >= scan8[0] + 8 && (i & 7) == 4 - && h->ref_cache[list][scan8[0] - 1] != PART_NOT_AVAILABLE) { - const uint32_t *mb_types = h->cur_pic_ptr->mb_type; - const int16_t *mv; - AV_ZERO32(h->mv_cache[list][scan8[0] - 2]); - *C = h->mv_cache[list][scan8[0] - 2]; - - if (!MB_FIELD(h) && IS_INTERLACED(h->left_type[0])) { - SET_DIAG_MV(* 2, >> 1, h->left_mb_xy[0] + h->mb_stride, - (h->mb_y & 1) * 2 + (i >> 5)); - } - if (MB_FIELD(h) && !IS_INTERLACED(h->left_type[0])) { - // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK. - SET_DIAG_MV(/ 2, << 1, h->left_mb_xy[i >= 36], ((i >> 2)) & 3); - } - } -#undef SET_DIAG_MV - } - - if (topright_ref != PART_NOT_AVAILABLE) { - *C = h->mv_cache[list][i - 8 + part_width]; - return topright_ref; - } else { - tprintf(h->avctx, "topright MV not available\n"); - - *C = h->mv_cache[list][i - 8 - 1]; - return h->ref_cache[list][i - 8 - 1]; - } -} - -/** - * Get the predicted MV. - * @param n the block index - * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4) - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static av_always_inline void pred_motion(H264Context *const h, int n, - int part_width, int list, int ref, - int *const mx, int *const my) -{ - const int index8 = scan8[n]; - const int top_ref = h->ref_cache[list][index8 - 8]; - const int left_ref = h->ref_cache[list][index8 - 1]; - const int16_t *const A = h->mv_cache[list][index8 - 1]; - const int16_t *const B = h->mv_cache[list][index8 - 8]; - const int16_t *C; - int diagonal_ref, match_count; - - av_assert2(part_width == 1 || part_width == 2 || part_width == 4); - -/* mv_cache - * B . . A T T T T - * U . . L . . , . - * U . . L . . . . - * U . . L . . , . - * . . . L . . . . - */ - - diagonal_ref = fetch_diagonal_mv(h, &C, index8, list, part_width); - match_count = (diagonal_ref == ref) + (top_ref == ref) + (left_ref == ref); - tprintf(h->avctx, "pred_motion match_count=%d\n", match_count); - if (match_count > 1) { //most common - *mx = mid_pred(A[0], B[0], C[0]); - *my = mid_pred(A[1], B[1], C[1]); - } else if (match_count == 1) { - if (left_ref == ref) { - *mx = A[0]; - *my = A[1]; - } else if (top_ref == ref) { - *mx = B[0]; - *my = B[1]; - } else { - *mx = C[0]; - *my = C[1]; - } - } else { - if (top_ref == PART_NOT_AVAILABLE && - diagonal_ref == PART_NOT_AVAILABLE && - left_ref != PART_NOT_AVAILABLE) { - *mx = A[0]; - *my = A[1]; - } else { - *mx = mid_pred(A[0], B[0], C[0]); - *my = mid_pred(A[1], B[1], C[1]); - } - } - - tprintf(h->avctx, - "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", - top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, - A[0], A[1], ref, *mx, *my, h->mb_x, h->mb_y, n, list); -} - -/** - * Get the directionally predicted 16x8 MV. - * @param n the block index - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static av_always_inline void pred_16x8_motion(H264Context *const h, - int n, int list, int ref, - int *const mx, int *const my) -{ - if (n == 0) { - const int top_ref = h->ref_cache[list][scan8[0] - 8]; - const int16_t *const B = h->mv_cache[list][scan8[0] - 8]; - - tprintf(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", - top_ref, B[0], B[1], h->mb_x, h->mb_y, n, list); - - if (top_ref == ref) { - *mx = B[0]; - *my = B[1]; - return; - } - } else { - const int left_ref = h->ref_cache[list][scan8[8] - 1]; - const int16_t *const A = h->mv_cache[list][scan8[8] - 1]; - - tprintf(h->avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", - left_ref, A[0], A[1], h->mb_x, h->mb_y, n, list); - - if (left_ref == ref) { - *mx = A[0]; - *my = A[1]; - return; - } - } - - //RARE - pred_motion(h, n, 4, list, ref, mx, my); -} - -/** - * Get the directionally predicted 8x16 MV. - * @param n the block index - * @param mx the x component of the predicted motion vector - * @param my the y component of the predicted motion vector - */ -static av_always_inline void pred_8x16_motion(H264Context *const h, - int n, int list, int ref, - int *const mx, int *const my) -{ - if (n == 0) { - const int left_ref = h->ref_cache[list][scan8[0] - 1]; - const int16_t *const A = h->mv_cache[list][scan8[0] - 1]; - - tprintf(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", - left_ref, A[0], A[1], h->mb_x, h->mb_y, n, list); - - if (left_ref == ref) { - *mx = A[0]; - *my = A[1]; - return; - } - } else { - const int16_t *C; - int diagonal_ref; - - diagonal_ref = fetch_diagonal_mv(h, &C, scan8[4], list, 2); - - tprintf(h->avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", - diagonal_ref, C[0], C[1], h->mb_x, h->mb_y, n, list); - - if (diagonal_ref == ref) { - *mx = C[0]; - *my = C[1]; - return; - } - } - - //RARE - pred_motion(h, n, 2, list, ref, mx, my); -} - -#define FIX_MV_MBAFF(type, refn, mvn, idx) \ - if (FRAME_MBAFF(h)) { \ - if (MB_FIELD(h)) { \ - if (!IS_INTERLACED(type)) { \ - refn <<= 1; \ - AV_COPY32(mvbuf[idx], mvn); \ - mvbuf[idx][1] /= 2; \ - mvn = mvbuf[idx]; \ - } \ - } else { \ - if (IS_INTERLACED(type)) { \ - refn >>= 1; \ - AV_COPY32(mvbuf[idx], mvn); \ - mvbuf[idx][1] <<= 1; \ - mvn = mvbuf[idx]; \ - } \ - } \ - } - -static av_always_inline void pred_pskip_motion(H264Context *const h) -{ - DECLARE_ALIGNED(4, static const int16_t, zeromv)[2] = { 0 }; - DECLARE_ALIGNED(4, int16_t, mvbuf)[3][2]; - int8_t *ref = h->cur_pic.ref_index[0]; - int16_t(*mv)[2] = h->cur_pic.motion_val[0]; - int top_ref, left_ref, diagonal_ref, match_count, mx, my; - const int16_t *A, *B, *C; - int b_stride = h->b_stride; - - fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1); - - /* To avoid doing an entire fill_decode_caches, we inline the relevant - * parts here. - * FIXME: this is a partial duplicate of the logic in fill_decode_caches, - * but it's faster this way. Is there a way to avoid this duplication? - */ - if (USES_LIST(h->left_type[LTOP], 0)) { - left_ref = ref[4 * h->left_mb_xy[LTOP] + 1 + (h->left_block[0] & ~1)]; - A = mv[h->mb2b_xy[h->left_mb_xy[LTOP]] + 3 + b_stride * h->left_block[0]]; - FIX_MV_MBAFF(h->left_type[LTOP], left_ref, A, 0); - if (!(left_ref | AV_RN32A(A))) - goto zeromv; - } else if (h->left_type[LTOP]) { - left_ref = LIST_NOT_USED; - A = zeromv; - } else { - goto zeromv; - } - - if (USES_LIST(h->top_type, 0)) { - top_ref = ref[4 * h->top_mb_xy + 2]; - B = mv[h->mb2b_xy[h->top_mb_xy] + 3 * b_stride]; - FIX_MV_MBAFF(h->top_type, top_ref, B, 1); - if (!(top_ref | AV_RN32A(B))) - goto zeromv; - } else if (h->top_type) { - top_ref = LIST_NOT_USED; - B = zeromv; - } else { - goto zeromv; - } - - tprintf(h->avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", - top_ref, left_ref, h->mb_x, h->mb_y); - - if (USES_LIST(h->topright_type, 0)) { - diagonal_ref = ref[4 * h->topright_mb_xy + 2]; - C = mv[h->mb2b_xy[h->topright_mb_xy] + 3 * b_stride]; - FIX_MV_MBAFF(h->topright_type, diagonal_ref, C, 2); - } else if (h->topright_type) { - diagonal_ref = LIST_NOT_USED; - C = zeromv; - } else { - if (USES_LIST(h->topleft_type, 0)) { - diagonal_ref = ref[4 * h->topleft_mb_xy + 1 + - (h->topleft_partition & 2)]; - C = mv[h->mb2b_xy[h->topleft_mb_xy] + 3 + b_stride + - (h->topleft_partition & 2 * b_stride)]; - FIX_MV_MBAFF(h->topleft_type, diagonal_ref, C, 2); - } else if (h->topleft_type) { - diagonal_ref = LIST_NOT_USED; - C = zeromv; - } else { - diagonal_ref = PART_NOT_AVAILABLE; - C = zeromv; - } - } - - match_count = !diagonal_ref + !top_ref + !left_ref; - tprintf(h->avctx, "pred_pskip_motion match_count=%d\n", match_count); - if (match_count > 1) { - mx = mid_pred(A[0], B[0], C[0]); - my = mid_pred(A[1], B[1], C[1]); - } else if (match_count == 1) { - if (!left_ref) { - mx = A[0]; - my = A[1]; - } else if (!top_ref) { - mx = B[0]; - my = B[1]; - } else { - mx = C[0]; - my = C[1]; - } - } else { - mx = mid_pred(A[0], B[0], C[0]); - my = mid_pred(A[1], B[1], C[1]); - } - - fill_rectangle(h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx, my), 4); - return; - -zeromv: - fill_rectangle(h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4); - return; -} - -static void fill_decode_neighbors(H264Context *h, int mb_type) -{ - const int mb_xy = h->mb_xy; - int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS]; - static const uint8_t left_block_options[4][32] = { - { 0, 1, 2, 3, 7, 10, 8, 11, 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 5 * 4, 1 + 9 * 4 }, - { 2, 2, 3, 3, 8, 11, 8, 11, 3 + 2 * 4, 3 + 2 * 4, 3 + 3 * 4, 3 + 3 * 4, 1 + 5 * 4, 1 + 9 * 4, 1 + 5 * 4, 1 + 9 * 4 }, - { 0, 0, 1, 1, 7, 10, 7, 10, 3 + 0 * 4, 3 + 0 * 4, 3 + 1 * 4, 3 + 1 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 4 * 4, 1 + 8 * 4 }, - { 0, 2, 0, 2, 7, 10, 7, 10, 3 + 0 * 4, 3 + 2 * 4, 3 + 0 * 4, 3 + 2 * 4, 1 + 4 * 4, 1 + 8 * 4, 1 + 4 * 4, 1 + 8 * 4 } - }; - - h->topleft_partition = -1; - - top_xy = mb_xy - (h->mb_stride << MB_FIELD(h)); - - /* Wow, what a mess, why didn't they simplify the interlacing & intra - * stuff, I can't imagine that these complex rules are worth it. */ - - topleft_xy = top_xy - 1; - topright_xy = top_xy + 1; - left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1; - h->left_block = left_block_options[0]; - if (FRAME_MBAFF(h)) { - const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]); - const int curr_mb_field_flag = IS_INTERLACED(mb_type); - if (h->mb_y & 1) { - if (left_mb_field_flag != curr_mb_field_flag) { - left_xy[LBOT] = left_xy[LTOP] = mb_xy - h->mb_stride - 1; - if (curr_mb_field_flag) { - left_xy[LBOT] += h->mb_stride; - h->left_block = left_block_options[3]; - } else { - topleft_xy += h->mb_stride; - /* take top left mv from the middle of the mb, as opposed - * to all other modes which use the bottom right partition */ - h->topleft_partition = 0; - h->left_block = left_block_options[1]; - } - } - } else { - if (curr_mb_field_flag) { - topleft_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy - 1] >> 7) & 1) - 1); - topright_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy + 1] >> 7) & 1) - 1); - top_xy += h->mb_stride & (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1); - } - if (left_mb_field_flag != curr_mb_field_flag) { - if (curr_mb_field_flag) { - left_xy[LBOT] += h->mb_stride; - h->left_block = left_block_options[3]; - } else { - h->left_block = left_block_options[2]; - } - } - } - } - - h->topleft_mb_xy = topleft_xy; - h->top_mb_xy = top_xy; - h->topright_mb_xy = topright_xy; - h->left_mb_xy[LTOP] = left_xy[LTOP]; - h->left_mb_xy[LBOT] = left_xy[LBOT]; - //FIXME do we need all in the context? - - h->topleft_type = h->cur_pic.mb_type[topleft_xy]; - h->top_type = h->cur_pic.mb_type[top_xy]; - h->topright_type = h->cur_pic.mb_type[topright_xy]; - h->left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]]; - h->left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]]; - - if (FMO) { - if (h->slice_table[topleft_xy] != h->slice_num) - h->topleft_type = 0; - if (h->slice_table[top_xy] != h->slice_num) - h->top_type = 0; - if (h->slice_table[left_xy[LTOP]] != h->slice_num) - h->left_type[LTOP] = h->left_type[LBOT] = 0; - } else { - if (h->slice_table[topleft_xy] != h->slice_num) { - h->topleft_type = 0; - if (h->slice_table[top_xy] != h->slice_num) - h->top_type = 0; - if (h->slice_table[left_xy[LTOP]] != h->slice_num) - h->left_type[LTOP] = h->left_type[LBOT] = 0; - } - } - if (h->slice_table[topright_xy] != h->slice_num) - h->topright_type = 0; -} - -static void fill_decode_caches(H264Context *h, int mb_type) -{ - int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS]; - int topleft_type, top_type, topright_type, left_type[LEFT_MBS]; - const uint8_t *left_block = h->left_block; - int i; - uint8_t *nnz; - uint8_t *nnz_cache; - - topleft_xy = h->topleft_mb_xy; - top_xy = h->top_mb_xy; - topright_xy = h->topright_mb_xy; - left_xy[LTOP] = h->left_mb_xy[LTOP]; - left_xy[LBOT] = h->left_mb_xy[LBOT]; - topleft_type = h->topleft_type; - top_type = h->top_type; - topright_type = h->topright_type; - left_type[LTOP] = h->left_type[LTOP]; - left_type[LBOT] = h->left_type[LBOT]; - - if (!IS_SKIP(mb_type)) { - if (IS_INTRA(mb_type)) { - int type_mask = h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1; - h->topleft_samples_available = - h->top_samples_available = - h->left_samples_available = 0xFFFF; - h->topright_samples_available = 0xEEEA; - - if (!(top_type & type_mask)) { - h->topleft_samples_available = 0xB3FF; - h->top_samples_available = 0x33FF; - h->topright_samples_available = 0x26EA; - } - if (IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])) { - if (IS_INTERLACED(mb_type)) { - if (!(left_type[LTOP] & type_mask)) { - h->topleft_samples_available &= 0xDFFF; - h->left_samples_available &= 0x5FFF; - } - if (!(left_type[LBOT] & type_mask)) { - h->topleft_samples_available &= 0xFF5F; - h->left_samples_available &= 0xFF5F; - } - } else { - int left_typei = h->cur_pic.mb_type[left_xy[LTOP] + h->mb_stride]; - - av_assert2(left_xy[LTOP] == left_xy[LBOT]); - if (!((left_typei & type_mask) && (left_type[LTOP] & type_mask))) { - h->topleft_samples_available &= 0xDF5F; - h->left_samples_available &= 0x5F5F; - } - } - } else { - if (!(left_type[LTOP] & type_mask)) { - h->topleft_samples_available &= 0xDF5F; - h->left_samples_available &= 0x5F5F; - } - } - - if (!(topleft_type & type_mask)) - h->topleft_samples_available &= 0x7FFF; - - if (!(topright_type & type_mask)) - h->topright_samples_available &= 0xFBFF; - - if (IS_INTRA4x4(mb_type)) { - if (IS_INTRA4x4(top_type)) { - AV_COPY32(h->intra4x4_pred_mode_cache + 4 + 8 * 0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]); - } else { - h->intra4x4_pred_mode_cache[4 + 8 * 0] = - h->intra4x4_pred_mode_cache[5 + 8 * 0] = - h->intra4x4_pred_mode_cache[6 + 8 * 0] = - h->intra4x4_pred_mode_cache[7 + 8 * 0] = 2 - 3 * !(top_type & type_mask); - } - for (i = 0; i < 2; i++) { - if (IS_INTRA4x4(left_type[LEFT(i)])) { - int8_t *mode = h->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]]; - h->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] = mode[6 - left_block[0 + 2 * i]]; - h->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = mode[6 - left_block[1 + 2 * i]]; - } else { - h->intra4x4_pred_mode_cache[3 + 8 * 1 + 2 * 8 * i] = - h->intra4x4_pred_mode_cache[3 + 8 * 2 + 2 * 8 * i] = 2 - 3 * !(left_type[LEFT(i)] & type_mask); - } - } - } - } - - /* - * 0 . T T. T T T T - * 1 L . .L . . . . - * 2 L . .L . . . . - * 3 . T TL . . . . - * 4 L . .L . . . . - * 5 L . .. . . . . - */ - /* FIXME: constraint_intra_pred & partitioning & nnz - * (let us hope this is just a typo in the spec) */ - nnz_cache = h->non_zero_count_cache; - if (top_type) { - nnz = h->non_zero_count[top_xy]; - AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[4 * 3]); - if (!h->chroma_y_shift) { - AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 7]); - AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 11]); - } else { - AV_COPY32(&nnz_cache[4 + 8 * 5], &nnz[4 * 5]); - AV_COPY32(&nnz_cache[4 + 8 * 10], &nnz[4 * 9]); - } - } else { - uint32_t top_empty = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 0x40404040; - AV_WN32A(&nnz_cache[4 + 8 * 0], top_empty); - AV_WN32A(&nnz_cache[4 + 8 * 5], top_empty); - AV_WN32A(&nnz_cache[4 + 8 * 10], top_empty); - } - - for (i = 0; i < 2; i++) { - if (left_type[LEFT(i)]) { - nnz = h->non_zero_count[left_xy[LEFT(i)]]; - nnz_cache[3 + 8 * 1 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i]]; - nnz_cache[3 + 8 * 2 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i]]; - if (CHROMA444) { - nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 4 * 4]; - nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 4 * 4]; - nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] + 8 * 4]; - nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] + 8 * 4]; - } else if (CHROMA422) { - nnz_cache[3 + 8 * 6 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 4 * 4]; - nnz_cache[3 + 8 * 7 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 4 * 4]; - nnz_cache[3 + 8 * 11 + 2 * 8 * i] = nnz[left_block[8 + 0 + 2 * i] - 2 + 8 * 4]; - nnz_cache[3 + 8 * 12 + 2 * 8 * i] = nnz[left_block[8 + 1 + 2 * i] - 2 + 8 * 4]; - } else { - nnz_cache[3 + 8 * 6 + 8 * i] = nnz[left_block[8 + 4 + 2 * i]]; - nnz_cache[3 + 8 * 11 + 8 * i] = nnz[left_block[8 + 5 + 2 * i]]; - } - } else { - nnz_cache[3 + 8 * 1 + 2 * 8 * i] = - nnz_cache[3 + 8 * 2 + 2 * 8 * i] = - nnz_cache[3 + 8 * 6 + 2 * 8 * i] = - nnz_cache[3 + 8 * 7 + 2 * 8 * i] = - nnz_cache[3 + 8 * 11 + 2 * 8 * i] = - nnz_cache[3 + 8 * 12 + 2 * 8 * i] = CABAC(h) && !IS_INTRA(mb_type) ? 0 : 64; - } - } - - if (CABAC(h)) { - // top_cbp - if (top_type) - h->top_cbp = h->cbp_table[top_xy]; - else - h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; - // left_cbp - if (left_type[LTOP]) { - h->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0) | - ((h->cbp_table[left_xy[LTOP]] >> (left_block[0] & (~1))) & 2) | - (((h->cbp_table[left_xy[LBOT]] >> (left_block[2] & (~1))) & 2) << 2); - } else { - h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; - } - } - } - - if (IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)) { - int list; - int b_stride = h->b_stride; - for (list = 0; list < h->list_count; list++) { - int8_t *ref_cache = &h->ref_cache[list][scan8[0]]; - int8_t *ref = h->cur_pic.ref_index[list]; - int16_t(*mv_cache)[2] = &h->mv_cache[list][scan8[0]]; - int16_t(*mv)[2] = h->cur_pic.motion_val[list]; - if (!USES_LIST(mb_type, list)) - continue; - av_assert2(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)); - - if (USES_LIST(top_type, list)) { - const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride; - AV_COPY128(mv_cache[0 - 1 * 8], mv[b_xy + 0]); - ref_cache[0 - 1 * 8] = - ref_cache[1 - 1 * 8] = ref[4 * top_xy + 2]; - ref_cache[2 - 1 * 8] = - ref_cache[3 - 1 * 8] = ref[4 * top_xy + 3]; - } else { - AV_ZERO128(mv_cache[0 - 1 * 8]); - AV_WN32A(&ref_cache[0 - 1 * 8], - ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE) & 0xFF) * 0x01010101u); - } - - if (mb_type & (MB_TYPE_16x8 | MB_TYPE_8x8)) { - for (i = 0; i < 2; i++) { - int cache_idx = -1 + i * 2 * 8; - if (USES_LIST(left_type[LEFT(i)], list)) { - const int b_xy = h->mb2b_xy[left_xy[LEFT(i)]] + 3; - const int b8_xy = 4 * left_xy[LEFT(i)] + 1; - AV_COPY32(mv_cache[cache_idx], - mv[b_xy + b_stride * left_block[0 + i * 2]]); - AV_COPY32(mv_cache[cache_idx + 8], - mv[b_xy + b_stride * left_block[1 + i * 2]]); - ref_cache[cache_idx] = ref[b8_xy + (left_block[0 + i * 2] & ~1)]; - ref_cache[cache_idx + 8] = ref[b8_xy + (left_block[1 + i * 2] & ~1)]; - } else { - AV_ZERO32(mv_cache[cache_idx]); - AV_ZERO32(mv_cache[cache_idx + 8]); - ref_cache[cache_idx] = - ref_cache[cache_idx + 8] = (left_type[LEFT(i)]) ? LIST_NOT_USED - : PART_NOT_AVAILABLE; - } - } - } else { - if (USES_LIST(left_type[LTOP], list)) { - const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3; - const int b8_xy = 4 * left_xy[LTOP] + 1; - AV_COPY32(mv_cache[-1], mv[b_xy + b_stride * left_block[0]]); - ref_cache[-1] = ref[b8_xy + (left_block[0] & ~1)]; - } else { - AV_ZERO32(mv_cache[-1]); - ref_cache[-1] = left_type[LTOP] ? LIST_NOT_USED - : PART_NOT_AVAILABLE; - } - } - - if (USES_LIST(topright_type, list)) { - const int b_xy = h->mb2b_xy[topright_xy] + 3 * b_stride; - AV_COPY32(mv_cache[4 - 1 * 8], mv[b_xy]); - ref_cache[4 - 1 * 8] = ref[4 * topright_xy + 2]; - } else { - AV_ZERO32(mv_cache[4 - 1 * 8]); - ref_cache[4 - 1 * 8] = topright_type ? LIST_NOT_USED - : PART_NOT_AVAILABLE; - } - if(ref_cache[2 - 1*8] < 0 || ref_cache[4 - 1*8] < 0){ - if (USES_LIST(topleft_type, list)) { - const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride + - (h->topleft_partition & 2 * b_stride); - const int b8_xy = 4 * topleft_xy + 1 + (h->topleft_partition & 2); - AV_COPY32(mv_cache[-1 - 1 * 8], mv[b_xy]); - ref_cache[-1 - 1 * 8] = ref[b8_xy]; - } else { - AV_ZERO32(mv_cache[-1 - 1 * 8]); - ref_cache[-1 - 1 * 8] = topleft_type ? LIST_NOT_USED - : PART_NOT_AVAILABLE; - } - } - - if ((mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2)) && !FRAME_MBAFF(h)) - continue; - - if (!(mb_type & (MB_TYPE_SKIP | MB_TYPE_DIRECT2))) { - uint8_t(*mvd_cache)[2] = &h->mvd_cache[list][scan8[0]]; - uint8_t(*mvd)[2] = h->mvd_table[list]; - ref_cache[2 + 8 * 0] = - ref_cache[2 + 8 * 2] = PART_NOT_AVAILABLE; - AV_ZERO32(mv_cache[2 + 8 * 0]); - AV_ZERO32(mv_cache[2 + 8 * 2]); - - if (CABAC(h)) { - if (USES_LIST(top_type, list)) { - const int b_xy = h->mb2br_xy[top_xy]; - AV_COPY64(mvd_cache[0 - 1 * 8], mvd[b_xy + 0]); - } else { - AV_ZERO64(mvd_cache[0 - 1 * 8]); - } - if (USES_LIST(left_type[LTOP], list)) { - const int b_xy = h->mb2br_xy[left_xy[LTOP]] + 6; - AV_COPY16(mvd_cache[-1 + 0 * 8], mvd[b_xy - left_block[0]]); - AV_COPY16(mvd_cache[-1 + 1 * 8], mvd[b_xy - left_block[1]]); - } else { - AV_ZERO16(mvd_cache[-1 + 0 * 8]); - AV_ZERO16(mvd_cache[-1 + 1 * 8]); - } - if (USES_LIST(left_type[LBOT], list)) { - const int b_xy = h->mb2br_xy[left_xy[LBOT]] + 6; - AV_COPY16(mvd_cache[-1 + 2 * 8], mvd[b_xy - left_block[2]]); - AV_COPY16(mvd_cache[-1 + 3 * 8], mvd[b_xy - left_block[3]]); - } else { - AV_ZERO16(mvd_cache[-1 + 2 * 8]); - AV_ZERO16(mvd_cache[-1 + 3 * 8]); - } - AV_ZERO16(mvd_cache[2 + 8 * 0]); - AV_ZERO16(mvd_cache[2 + 8 * 2]); - if (h->slice_type_nos == AV_PICTURE_TYPE_B) { - uint8_t *direct_cache = &h->direct_cache[scan8[0]]; - uint8_t *direct_table = h->direct_table; - fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16 >> 1, 1); - - if (IS_DIRECT(top_type)) { - AV_WN32A(&direct_cache[-1 * 8], - 0x01010101u * (MB_TYPE_DIRECT2 >> 1)); - } else if (IS_8X8(top_type)) { - int b8_xy = 4 * top_xy; - direct_cache[0 - 1 * 8] = direct_table[b8_xy + 2]; - direct_cache[2 - 1 * 8] = direct_table[b8_xy + 3]; - } else { - AV_WN32A(&direct_cache[-1 * 8], - 0x01010101 * (MB_TYPE_16x16 >> 1)); - } - - if (IS_DIRECT(left_type[LTOP])) - direct_cache[-1 + 0 * 8] = MB_TYPE_DIRECT2 >> 1; - else if (IS_8X8(left_type[LTOP])) - direct_cache[-1 + 0 * 8] = direct_table[4 * left_xy[LTOP] + 1 + (left_block[0] & ~1)]; - else - direct_cache[-1 + 0 * 8] = MB_TYPE_16x16 >> 1; - - if (IS_DIRECT(left_type[LBOT])) - direct_cache[-1 + 2 * 8] = MB_TYPE_DIRECT2 >> 1; - else if (IS_8X8(left_type[LBOT])) - direct_cache[-1 + 2 * 8] = direct_table[4 * left_xy[LBOT] + 1 + (left_block[2] & ~1)]; - else - direct_cache[-1 + 2 * 8] = MB_TYPE_16x16 >> 1; - } - } - } - -#define MAP_MVS \ - MAP_F2F(scan8[0] - 1 - 1 * 8, topleft_type) \ - MAP_F2F(scan8[0] + 0 - 1 * 8, top_type) \ - MAP_F2F(scan8[0] + 1 - 1 * 8, top_type) \ - MAP_F2F(scan8[0] + 2 - 1 * 8, top_type) \ - MAP_F2F(scan8[0] + 3 - 1 * 8, top_type) \ - MAP_F2F(scan8[0] + 4 - 1 * 8, topright_type) \ - MAP_F2F(scan8[0] - 1 + 0 * 8, left_type[LTOP]) \ - MAP_F2F(scan8[0] - 1 + 1 * 8, left_type[LTOP]) \ - MAP_F2F(scan8[0] - 1 + 2 * 8, left_type[LBOT]) \ - MAP_F2F(scan8[0] - 1 + 3 * 8, left_type[LBOT]) - - if (FRAME_MBAFF(h)) { - if (MB_FIELD(h)) { - -#define MAP_F2F(idx, mb_type) \ - if (!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0) { \ - h->ref_cache[list][idx] <<= 1; \ - h->mv_cache[list][idx][1] /= 2; \ - h->mvd_cache[list][idx][1] >>= 1; \ - } - - MAP_MVS - } else { - -#undef MAP_F2F -#define MAP_F2F(idx, mb_type) \ - if (IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0) { \ - h->ref_cache[list][idx] >>= 1; \ - h->mv_cache[list][idx][1] <<= 1; \ - h->mvd_cache[list][idx][1] <<= 1; \ - } - - MAP_MVS -#undef MAP_F2F - } - } - } - } - - h->neighbor_transform_size = !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]); -} - -/** - * decodes a P_SKIP or B_SKIP macroblock - */ -static void av_unused decode_mb_skip(H264Context *h) -{ - const int mb_xy = h->mb_xy; - int mb_type = 0; - - memset(h->non_zero_count[mb_xy], 0, 48); - - if (MB_FIELD(h)) - mb_type |= MB_TYPE_INTERLACED; - - if (h->slice_type_nos == AV_PICTURE_TYPE_B) { - // just for fill_caches. pred_direct_motion will set the real mb_type - mb_type |= MB_TYPE_L0L1 | MB_TYPE_DIRECT2 | MB_TYPE_SKIP; - if (h->direct_spatial_mv_pred) { - fill_decode_neighbors(h, mb_type); - fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ... - } - ff_h264_pred_direct_motion(h, &mb_type); - mb_type |= MB_TYPE_SKIP; - } else { - mb_type |= MB_TYPE_16x16 | MB_TYPE_P0L0 | MB_TYPE_P1L0 | MB_TYPE_SKIP; - - fill_decode_neighbors(h, mb_type); - pred_pskip_motion(h); - } - - write_back_motion(h, mb_type); - h->cur_pic.mb_type[mb_xy] = mb_type; - h->cur_pic.qscale_table[mb_xy] = h->qscale; - h->slice_table[mb_xy] = h->slice_num; - h->prev_mb_skipped = 1; -} - -#endif /* AVCODEC_H264_MVPRED_H */ |