vpx/vp9/common/vp9_alloccommon.c
James Zern 54a03e20dd Revert "New mode_info_context storage"
This reverts commit dae17734ec

Encode crashes, leaks and increases integer overflow errors.

Change-Id: I595aa2649bb8d0b6552ff91652837a74c103fda2
2013-09-09 13:37:01 -07:00

210 lines
5.9 KiB
C

/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "./vpx_config.h"
#include "vpx_mem/vpx_mem.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_entropymode.h"
#include "vp9/common/vp9_entropymv.h"
#include "vp9/common/vp9_findnearmv.h"
#include "vp9/common/vp9_onyxc_int.h"
#include "vp9/common/vp9_systemdependent.h"
void vp9_update_mode_info_border(VP9_COMMON *cm, MODE_INFO *mi) {
const int stride = cm->mode_info_stride;
int i;
// Clear down top border row
vpx_memset(mi, 0, sizeof(MODE_INFO) * stride);
// Clear left border column
for (i = 1; i < cm->mi_rows + 1; i++)
vpx_memset(&mi[i * stride], 0, sizeof(MODE_INFO));
}
void vp9_update_mode_info_in_image(VP9_COMMON *cm, MODE_INFO *mi) {
int i, j;
// For each in image mode_info element set the in image flag to 1
for (i = 0; i < cm->mi_rows; i++) {
MODE_INFO *ptr = mi;
for (j = 0; j < cm->mi_cols; j++) {
ptr->mbmi.in_image = 1;
ptr++; // Next element in the row
}
// Step over border element at start of next row
mi += cm->mode_info_stride;
}
}
void vp9_free_frame_buffers(VP9_COMMON *cm) {
int i;
for (i = 0; i < NUM_YV12_BUFFERS; i++)
vp9_free_frame_buffer(&cm->yv12_fb[i]);
vp9_free_frame_buffer(&cm->post_proc_buffer);
vpx_free(cm->mip);
vpx_free(cm->prev_mip);
vpx_free(cm->above_seg_context);
vpx_free(cm->last_frame_seg_map);
vpx_free(cm->above_context[0]);
for (i = 0; i < MAX_MB_PLANE; i++)
cm->above_context[i] = 0;
cm->mip = NULL;
cm->prev_mip = NULL;
cm->above_seg_context = NULL;
cm->last_frame_seg_map = NULL;
}
static void set_mb_mi(VP9_COMMON *cm, int aligned_width, int aligned_height) {
cm->mb_cols = (aligned_width + 8) >> 4;
cm->mb_rows = (aligned_height + 8) >> 4;
cm->MBs = cm->mb_rows * cm->mb_cols;
cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
cm->mode_info_stride = cm->mi_cols + MI_BLOCK_SIZE;
}
static void setup_mi(VP9_COMMON *cm) {
cm->mi = cm->mip + cm->mode_info_stride + 1;
cm->prev_mi = cm->prev_mip + cm->mode_info_stride + 1;
vpx_memset(cm->mip, 0,
cm->mode_info_stride * (cm->mi_rows + 1) * sizeof(MODE_INFO));
vp9_update_mode_info_border(cm, cm->mip);
vp9_update_mode_info_in_image(cm, cm->mi);
vp9_update_mode_info_border(cm, cm->prev_mip);
vp9_update_mode_info_in_image(cm, cm->prev_mi);
}
int vp9_alloc_frame_buffers(VP9_COMMON *cm, int width, int height) {
int i, mi_cols;
const int aligned_width = ALIGN_POWER_OF_TWO(width, MI_SIZE_LOG2);
const int aligned_height = ALIGN_POWER_OF_TWO(height, MI_SIZE_LOG2);
const int ss_x = cm->subsampling_x;
const int ss_y = cm->subsampling_y;
int mi_size;
vp9_free_frame_buffers(cm);
for (i = 0; i < NUM_YV12_BUFFERS; i++) {
cm->fb_idx_ref_cnt[i] = 0;
if (vp9_alloc_frame_buffer(&cm->yv12_fb[i], width, height, ss_x, ss_y,
VP9BORDERINPIXELS) < 0)
goto fail;
}
cm->new_fb_idx = NUM_YV12_BUFFERS - 1;
cm->fb_idx_ref_cnt[cm->new_fb_idx] = 1;
for (i = 0; i < ALLOWED_REFS_PER_FRAME; i++)
cm->active_ref_idx[i] = i;
for (i = 0; i < NUM_REF_FRAMES; i++) {
cm->ref_frame_map[i] = i;
cm->fb_idx_ref_cnt[i] = 1;
}
if (vp9_alloc_frame_buffer(&cm->post_proc_buffer, width, height, ss_x, ss_y,
VP9BORDERINPIXELS) < 0)
goto fail;
set_mb_mi(cm, aligned_width, aligned_height);
// Allocation
mi_size = cm->mode_info_stride * (cm->mi_rows + MI_BLOCK_SIZE);
cm->mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
if (!cm->mip)
goto fail;
cm->prev_mip = vpx_calloc(mi_size, sizeof(MODE_INFO));
if (!cm->prev_mip)
goto fail;
setup_mi(cm);
// FIXME(jkoleszar): allocate subsampled arrays for U/V once subsampling
// information is exposed at this level
mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
// 2 contexts per 'mi unit', so that we have one context per 4x4 txfm
// block where mi unit size is 8x8.
cm->above_context[0] = vpx_calloc(sizeof(ENTROPY_CONTEXT) * MAX_MB_PLANE *
(2 * mi_cols), 1);
if (!cm->above_context[0])
goto fail;
cm->above_seg_context = vpx_calloc(sizeof(PARTITION_CONTEXT) * mi_cols, 1);
if (!cm->above_seg_context)
goto fail;
// Create the segmentation map structure and set to 0.
cm->last_frame_seg_map = vpx_calloc(cm->mi_rows * cm->mi_cols, 1);
if (!cm->last_frame_seg_map)
goto fail;
return 0;
fail:
vp9_free_frame_buffers(cm);
return 1;
}
void vp9_create_common(VP9_COMMON *cm) {
vp9_machine_specific_config(cm);
vp9_init_mbmode_probs(cm);
cm->tx_mode = ONLY_4X4;
cm->comp_pred_mode = HYBRID_PREDICTION;
// Initialize reference frame sign bias structure to defaults
vpx_memset(cm->ref_frame_sign_bias, 0, sizeof(cm->ref_frame_sign_bias));
}
void vp9_remove_common(VP9_COMMON *cm) {
vp9_free_frame_buffers(cm);
}
void vp9_initialize_common() {
vp9_coef_tree_initialize();
vp9_entropy_mode_init();
vp9_entropy_mv_init();
}
void vp9_update_frame_size(VP9_COMMON *cm) {
int i, mi_cols;
const int aligned_width = ALIGN_POWER_OF_TWO(cm->width, MI_SIZE_LOG2);
const int aligned_height = ALIGN_POWER_OF_TWO(cm->height, MI_SIZE_LOG2);
set_mb_mi(cm, aligned_width, aligned_height);
setup_mi(cm);
mi_cols = mi_cols_aligned_to_sb(cm->mi_cols);
for (i = 1; i < MAX_MB_PLANE; i++)
cm->above_context[i] =
cm->above_context[0] + i * sizeof(ENTROPY_CONTEXT) * 2 * mi_cols;
// Initialize the previous frame segment map to 0.
if (cm->last_frame_seg_map)
vpx_memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
}