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-rw-r--r--media/libstagefright/codecs/avc/common/src/mb_access.cpp471
1 files changed, 0 insertions, 471 deletions
diff --git a/media/libstagefright/codecs/avc/common/src/mb_access.cpp b/media/libstagefright/codecs/avc/common/src/mb_access.cpp
deleted file mode 100644
index 414b8f7..0000000
--- a/media/libstagefright/codecs/avc/common/src/mb_access.cpp
+++ /dev/null
@@ -1,471 +0,0 @@
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-#include <string.h>
-
-#include "avclib_common.h"
-
-OSCL_EXPORT_REF void InitNeighborAvailability(AVCCommonObj *video, int mbNum)
-{
- int PicWidthInMbs = video->PicWidthInMbs;
-
- // do frame-only and postpone intraAvail calculattion
- video->mbAddrA = mbNum - 1;
- video->mbAddrB = mbNum - PicWidthInMbs;
- video->mbAddrC = mbNum - PicWidthInMbs + 1;
- video->mbAddrD = mbNum - PicWidthInMbs - 1;
-
- video->mbAvailA = video->mbAvailB = video->mbAvailC = video->mbAvailD = 0;
- if (video->mb_x)
- {
- video->mbAvailA = (video->mblock[video->mbAddrA].slice_id == video->currMB->slice_id);
- if (video->mb_y)
- {
- video->mbAvailD = (video->mblock[video->mbAddrD].slice_id == video->currMB->slice_id);
- }
- }
-
- if (video->mb_y)
- {
- video->mbAvailB = (video->mblock[video->mbAddrB].slice_id == video->currMB->slice_id);
- if (video->mb_x < (PicWidthInMbs - 1))
- {
- video->mbAvailC = (video->mblock[video->mbAddrC].slice_id == video->currMB->slice_id);
- }
- }
- return ;
-}
-
-bool mb_is_available(AVCMacroblock *mblock, uint PicSizeInMbs, int mbAddr, int currMbAddr)
-{
- if (mbAddr < 0 || mbAddr >= (int)PicSizeInMbs)
- {
- return FALSE;
- }
-
- if (mblock[mbAddr].slice_id != mblock[currMbAddr].slice_id)
- {
- return FALSE;
- }
-
- return TRUE;
-}
-
-OSCL_EXPORT_REF int predict_nnz(AVCCommonObj *video, int i, int j)
-{
- int pred_nnz = 0;
- int cnt = 1;
- AVCMacroblock *tempMB;
-
- /* left block */
- /*getLuma4x4Neighbour(video, mb_nr, i, j, -1, 0, &pix);
- leftMB = video->mblock + pix.mb_addr; */
- /* replace the above with below (won't work for field decoding), 1/19/04 */
-
- if (i)
- {
- pred_nnz = video->currMB->nz_coeff[(j<<2)+i-1];
- }
- else
- {
- if (video->mbAvailA)
- {
- tempMB = video->mblock + video->mbAddrA;
- pred_nnz = tempMB->nz_coeff[(j<<2)+3];
- }
- else
- {
- cnt = 0;
- }
- }
-
-
- /* top block */
- /*getLuma4x4Neighbour(video, mb_nr, i, j, 0, -1, &pix);
- topMB = video->mblock + pix.mb_addr;*/
- /* replace the above with below (won't work for field decoding), 1/19/04 */
-
- if (j)
- {
- pred_nnz += video->currMB->nz_coeff[((j-1)<<2)+i];
- cnt++;
- }
- else
- {
- if (video->mbAvailB)
- {
- tempMB = video->mblock + video->mbAddrB;
- pred_nnz += tempMB->nz_coeff[12+i];
- cnt++;
- }
- }
-
-
- if (cnt == 2)
- {
- pred_nnz = (pred_nnz + 1) >> 1;
- }
-
- return pred_nnz;
-
-}
-
-
-OSCL_EXPORT_REF int predict_nnz_chroma(AVCCommonObj *video, int i, int j)
-{
- int pred_nnz = 0;
- int cnt = 1;
- AVCMacroblock *tempMB;
-
- /* left block */
- /*getChroma4x4Neighbour(video, mb_nr, i%2, j-4, -1, 0, &pix);
- leftMB = video->mblock + pix.mb_addr;*/
- /* replace the above with below (won't work for field decoding), 1/19/04 */
- if (i&1)
- {
- pred_nnz = video->currMB->nz_coeff[(j<<2)+i-1];
-
- }
- else
- {
- if (video->mbAvailA)
- {
- tempMB = video->mblock + video->mbAddrA;
- pred_nnz = tempMB->nz_coeff[(j<<2)+i+1];
- }
- else
- {
- cnt = 0;
- }
- }
-
-
- /* top block */
- /*getChroma4x4Neighbour(video, mb_nr, i%2, j-4, 0, -1, &pix);
- topMB = video->mblock + pix.mb_addr;*/
- /* replace the above with below (won't work for field decoding), 1/19/04 */
-
- if (j&1)
- {
- pred_nnz += video->currMB->nz_coeff[((j-1)<<2)+i];
- cnt++;
- }
- else
- {
- if (video->mbAvailB)
- {
- tempMB = video->mblock + video->mbAddrB;
- pred_nnz += tempMB->nz_coeff[20+i];
- cnt++;
- }
-
- }
-
- if (cnt == 2)
- {
- pred_nnz = (pred_nnz + 1) >> 1;
- }
-
- return pred_nnz;
-}
-
-OSCL_EXPORT_REF void GetMotionVectorPredictor(AVCCommonObj *video, int encFlag)
-{
- AVCMacroblock *currMB = video->currMB;
- AVCMacroblock *MB_A, *MB_B, *MB_C, *MB_D;
- int block_x, block_y, block_x_1, block_y_1, new_block_x;
- int mbPartIdx, subMbPartIdx, offset_indx;
- int16 *mv, pmv_x, pmv_y;
- int nmSubMbHeight, nmSubMbWidth, mbPartIdx_X, mbPartIdx_Y;
- int avail_a, avail_b, avail_c;
- const static uint32 C = 0x5750;
- int i, j, offset_MbPart_indx, refIdxLXA, refIdxLXB, refIdxLXC = 0, curr_ref_idx;
- int pmv_A_x, pmv_B_x, pmv_C_x = 0, pmv_A_y, pmv_B_y, pmv_C_y = 0;
-
- /* we have to take care of Intra/skip blocks somewhere, i.e. set MV to 0 and set ref to -1! */
- /* we have to populate refIdx as well */
-
-
- MB_A = &video->mblock[video->mbAddrA];
- MB_B = &video->mblock[video->mbAddrB];
-
-
- if (currMB->mbMode == AVC_SKIP /* && !encFlag */) /* only for decoder */
- {
- currMB->ref_idx_L0[0] = currMB->ref_idx_L0[1] = currMB->ref_idx_L0[2] = currMB->ref_idx_L0[3] = 0;
- if (video->mbAvailA && video->mbAvailB)
- {
- if ((MB_A->ref_idx_L0[1] == 0 && MB_A->mvL0[3] == 0) ||
- (MB_B->ref_idx_L0[2] == 0 && MB_B->mvL0[12] == 0))
- {
- memset(currMB->mvL0, 0, sizeof(int32)*16);
- return;
- }
- }
- else
- {
- memset(currMB->mvL0, 0, sizeof(int32)*16);
- return;
- }
- video->mvd_l0[0][0][0] = 0;
- video->mvd_l0[0][0][1] = 0;
- }
-
- MB_C = &video->mblock[video->mbAddrC];
- MB_D = &video->mblock[video->mbAddrD];
-
- offset_MbPart_indx = 0;
- for (mbPartIdx = 0; mbPartIdx < currMB->NumMbPart; mbPartIdx++)
- {
- offset_indx = 0;
- nmSubMbHeight = currMB->SubMbPartHeight[mbPartIdx] >> 2;
- nmSubMbWidth = currMB->SubMbPartWidth[mbPartIdx] >> 2;
- mbPartIdx_X = ((mbPartIdx + offset_MbPart_indx) & 1) << 1;
- mbPartIdx_Y = (mbPartIdx + offset_MbPart_indx) & 2;
-
- for (subMbPartIdx = 0; subMbPartIdx < currMB->NumSubMbPart[mbPartIdx]; subMbPartIdx++)
- {
- block_x = mbPartIdx_X + ((subMbPartIdx + offset_indx) & 1);
- block_y = mbPartIdx_Y + (((subMbPartIdx + offset_indx) >> 1) & 1);
-
- block_x_1 = block_x - 1;
- block_y_1 = block_y - 1;
- refIdxLXA = refIdxLXB = refIdxLXC = -1;
- pmv_A_x = pmv_A_y = pmv_B_x = pmv_B_y = pmv_C_x = pmv_C_y = 0;
-
- if (block_x)
- {
- avail_a = 1;
- refIdxLXA = currMB->ref_idx_L0[(block_y & 2) + (block_x_1 >> 1)];
- mv = (int16*)(currMB->mvL0 + (block_y << 2) + block_x_1);
- pmv_A_x = *mv++;
- pmv_A_y = *mv;
- }
- else
- {
- avail_a = video->mbAvailA;
- if (avail_a)
- {
- refIdxLXA = MB_A->ref_idx_L0[(block_y & 2) + 1];
- mv = (int16*)(MB_A->mvL0 + (block_y << 2) + 3);
- pmv_A_x = *mv++;
- pmv_A_y = *mv;
- }
- }
-
- if (block_y)
- {
- avail_b = 1;
- refIdxLXB = currMB->ref_idx_L0[(block_y_1 & 2) + (block_x >> 1)];
- mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + block_x);
- pmv_B_x = *mv++;
- pmv_B_y = *mv;
- }
-
- else
- {
- avail_b = video->mbAvailB;
- if (avail_b)
- {
- refIdxLXB = MB_B->ref_idx_L0[2 + (block_x >> 1)];
- mv = (int16*)(MB_B->mvL0 + 12 + block_x);
- pmv_B_x = *mv++;
- pmv_B_y = *mv;
- }
- }
-
- new_block_x = block_x + (currMB->SubMbPartWidth[mbPartIdx] >> 2) - 1;
- avail_c = (C >> ((block_y << 2) + new_block_x)) & 0x1;
-
- if (avail_c)
- {
- /* it guaranteed that block_y > 0 && new_block_x<3 ) */
- refIdxLXC = currMB->ref_idx_L0[(block_y_1 & 2) + ((new_block_x+1) >> 1)];
- mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + (new_block_x + 1));
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- else
- {
- if (block_y == 0 && new_block_x < 3)
- {
- avail_c = video->mbAvailB;
- if (avail_c)
- {
- refIdxLXC = MB_B->ref_idx_L0[2 + ((new_block_x+1)>>1)];
- mv = (int16*)(MB_B->mvL0 + 12 + (new_block_x + 1));
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- }
- else if (block_y == 0 && new_block_x == 3)
- {
- avail_c = video->mbAvailC;
- if (avail_c)
- {
- refIdxLXC = MB_C->ref_idx_L0[2];
- mv = (int16*)(MB_C->mvL0 + 12);
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- }
-
- if (avail_c == 0)
- { /* check D */
- if (block_x && block_y)
- {
- avail_c = 1;
- refIdxLXC = currMB->ref_idx_L0[(block_y_1 & 2) + (block_x_1 >> 1)];
- mv = (int16*)(currMB->mvL0 + (block_y_1 << 2) + block_x_1);
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- else if (block_y)
- {
- avail_c = video->mbAvailA;
- if (avail_c)
- {
- refIdxLXC = MB_A->ref_idx_L0[(block_y_1 & 2) + 1];
- mv = (int16*)(MB_A->mvL0 + (block_y_1 << 2) + 3);
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- }
- else if (block_x)
- {
- avail_c = video->mbAvailB;
- if (avail_c)
- {
- refIdxLXC = MB_B->ref_idx_L0[2 + (block_x_1 >> 1)];
- mv = (int16*)(MB_B->mvL0 + 12 + block_x_1);
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- }
- else
- {
- avail_c = video->mbAvailD;
- if (avail_c)
- {
- refIdxLXC = MB_D->ref_idx_L0[3];
- mv = (int16*)(MB_D->mvL0 + 15);
- pmv_C_x = *mv++;
- pmv_C_y = *mv;
- }
- }
- }
- }
-
- offset_indx = currMB->SubMbPartWidth[mbPartIdx] >> 3;
-
- curr_ref_idx = currMB->ref_idx_L0[(block_y & 2) + (block_x >> 1)];
-
- if (avail_a && !(avail_b || avail_c))
- {
- pmv_x = pmv_A_x;
- pmv_y = pmv_A_y;
- }
- else if (((curr_ref_idx == refIdxLXA) + (curr_ref_idx == refIdxLXB) + (curr_ref_idx == refIdxLXC)) == 1)
- {
- if (curr_ref_idx == refIdxLXA)
- {
- pmv_x = pmv_A_x;
- pmv_y = pmv_A_y;
- }
- else if (curr_ref_idx == refIdxLXB)
- {
- pmv_x = pmv_B_x;
- pmv_y = pmv_B_y;
- }
- else
- {
- pmv_x = pmv_C_x;
- pmv_y = pmv_C_y;
- }
- }
- else
- {
- pmv_x = AVC_MEDIAN(pmv_A_x, pmv_B_x, pmv_C_x);
- pmv_y = AVC_MEDIAN(pmv_A_y, pmv_B_y, pmv_C_y);
- }
-
- /* overwrite if special case */
- if (currMB->NumMbPart == 2)
- {
- if (currMB->MbPartWidth == 16)
- {
- if (mbPartIdx == 0)
- {
- if (refIdxLXB == curr_ref_idx)
- {
- pmv_x = pmv_B_x;
- pmv_y = pmv_B_y;
- }
- }
- else if (refIdxLXA == curr_ref_idx)
- {
- pmv_x = pmv_A_x;
- pmv_y = pmv_A_y;
- }
- }
- else
- {
- if (mbPartIdx == 0)
- {
- if (refIdxLXA == curr_ref_idx)
- {
- pmv_x = pmv_A_x;
- pmv_y = pmv_A_y;
- }
- }
- else if (refIdxLXC == curr_ref_idx)
- {
- pmv_x = pmv_C_x;
- pmv_y = pmv_C_y;
- }
- }
- }
-
- mv = (int16*)(currMB->mvL0 + block_x + (block_y << 2));
-
- if (encFlag) /* calculate residual MV video->mvd_l0 */
- {
- video->mvd_l0[mbPartIdx][subMbPartIdx][0] = *mv++ - pmv_x;
- video->mvd_l0[mbPartIdx][subMbPartIdx][1] = *mv++ - pmv_y;
- }
- else /* calculate original MV currMB->mvL0 */
- {
- pmv_x += video->mvd_l0[mbPartIdx][subMbPartIdx][0];
- pmv_y += video->mvd_l0[mbPartIdx][subMbPartIdx][1];
-
- for (i = 0; i < nmSubMbHeight; i++)
- {
- for (j = 0; j < nmSubMbWidth; j++)
- {
- *mv++ = pmv_x;
- *mv++ = pmv_y;
- }
- mv += (8 - (j << 1));
- }
- }
- }
- offset_MbPart_indx = currMB->MbPartWidth >> 4;
-
- }
-}
-
-
generated by cgit v1.1 at 2024-06-09 15:57:49 +0000