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comparison: media/libvpx/vp8/encoder/segmentation.c
media/libvpx/vp8/encoder/segmentation.c
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| -1:000000000000 | 0:e2be20deb520 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 | |
| 12 #include "segmentation.h" | |
| 13 #include "vpx_mem/vpx_mem.h" | |
| 14 | |
| 15 void vp8_update_gf_useage_maps(VP8_COMP *cpi, VP8_COMMON *cm, MACROBLOCK *x) | |
| 16 { | |
| 17 int mb_row, mb_col; | |
| 18 | |
| 19 MODE_INFO *this_mb_mode_info = cm->mi; | |
| 20 | |
| 21 x->gf_active_ptr = (signed char *)cpi->gf_active_flags; | |
| 22 | |
| 23 if ((cm->frame_type == KEY_FRAME) || (cm->refresh_golden_frame)) | |
| 24 { | |
| 25 /* Reset Gf useage monitors */ | |
| 26 vpx_memset(cpi->gf_active_flags, 1, (cm->mb_rows * cm->mb_cols)); | |
| 27 cpi->gf_active_count = cm->mb_rows * cm->mb_cols; | |
| 28 } | |
| 29 else | |
| 30 { | |
| 31 /* for each macroblock row in image */ | |
| 32 for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) | |
| 33 { | |
| 34 /* for each macroblock col in image */ | |
| 35 for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) | |
| 36 { | |
| 37 | |
| 38 /* If using golden then set GF active flag if not already set. | |
| 39 * If using last frame 0,0 mode then leave flag as it is | |
| 40 * else if using non 0,0 motion or intra modes then clear | |
| 41 * flag if it is currently set | |
| 42 */ | |
| 43 if ((this_mb_mode_info->mbmi.ref_frame == GOLDEN_FRAME) || (this_mb_mode_info->mbmi.ref_frame == ALTREF_FRAME)) | |
| 44 { | |
| 45 if (*(x->gf_active_ptr) == 0) | |
| 46 { | |
| 47 *(x->gf_active_ptr) = 1; | |
| 48 cpi->gf_active_count ++; | |
| 49 } | |
| 50 } | |
| 51 else if ((this_mb_mode_info->mbmi.mode != ZEROMV) && *(x->gf_active_ptr)) | |
| 52 { | |
| 53 *(x->gf_active_ptr) = 0; | |
| 54 cpi->gf_active_count--; | |
| 55 } | |
| 56 | |
| 57 x->gf_active_ptr++; /* Step onto next entry */ | |
| 58 this_mb_mode_info++; /* skip to next mb */ | |
| 59 | |
| 60 } | |
| 61 | |
| 62 /* this is to account for the border */ | |
| 63 this_mb_mode_info++; | |
| 64 } | |
| 65 } | |
| 66 } |
