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Import aom library

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This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90 2018-10-15 21:45:30 -05:00 • committed by Roy Tam
commit edc8d83307
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third_party/aom/av1/decoder/inspection.c vendored Normal file
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/*
* Copyright (c) 2017, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "av1/decoder/decoder.h"
#include "av1/decoder/inspection.h"
#include "av1/common/enums.h"
#if CONFIG_CDEF
#include "av1/common/cdef.h"
#endif
void ifd_init(insp_frame_data *fd, int frame_width, int frame_height) {
fd->mi_cols = ALIGN_POWER_OF_TWO(frame_width, 3) >> MI_SIZE_LOG2;
fd->mi_rows = ALIGN_POWER_OF_TWO(frame_height, 3) >> MI_SIZE_LOG2;
fd->mi_grid = (insp_mi_data *)aom_malloc(sizeof(insp_mi_data) * fd->mi_rows *
fd->mi_cols);
}
void ifd_clear(insp_frame_data *fd) {
aom_free(fd->mi_grid);
fd->mi_grid = NULL;
}
/* TODO(negge) This function may be called by more than one thread when using
a multi-threaded decoder and this may cause a data race. */
int ifd_inspect(insp_frame_data *fd, void *decoder) {
struct AV1Decoder *pbi = (struct AV1Decoder *)decoder;
AV1_COMMON *const cm = &pbi->common;
// TODO(negge): Should this function just call ifd_clear() and ifd_init()?
if (fd->mi_rows != cm->mi_rows || fd->mi_cols != cm->mi_cols) {
return 0;
}
fd->show_frame = cm->show_frame;
fd->frame_type = cm->frame_type;
fd->base_qindex = cm->base_qindex;
fd->tile_mi_cols = cm->tile_width;
fd->tile_mi_rows = cm->tile_height;
#if CONFIG_ACCOUNTING
fd->accounting = &pbi->accounting;
#endif
#if CONFIG_CDEF
// TODO(negge): copy per frame CDEF data
#endif
int i, j;
for (i = 0; i < MAX_SEGMENTS; i++) {
for (j = 0; j < 2; j++) {
fd->y_dequant[i][j] = cm->y_dequant[i][j];
fd->uv_dequant[i][j] = cm->uv_dequant[i][j];
}
}
for (j = 0; j < cm->mi_rows; j++) {
for (i = 0; i < cm->mi_cols; i++) {
const MB_MODE_INFO *mbmi =
&cm->mi_grid_visible[j * cm->mi_stride + i]->mbmi;
insp_mi_data *mi = &fd->mi_grid[j * cm->mi_cols + i];
// Segment
mi->segment_id = mbmi->segment_id;
// Motion Vectors
mi->mv[0].row = mbmi->mv[0].as_mv.row;
mi->mv[0].col = mbmi->mv[0].as_mv.col;
mi->mv[1].row = mbmi->mv[1].as_mv.row;
mi->mv[1].col = mbmi->mv[1].as_mv.col;
// Reference Frames
mi->ref_frame[0] = mbmi->ref_frame[0];
mi->ref_frame[1] = mbmi->ref_frame[1];
// Prediction Mode
mi->mode = mbmi->mode;
// Prediction Mode for Chromatic planes
if (mi->mode < INTRA_MODES) {
mi->uv_mode = mbmi->uv_mode;
} else {
mi->uv_mode = INTRA_INVALID;
}
// Block Size
mi->sb_type = mbmi->sb_type;
// Skip Flag
mi->skip = mbmi->skip;
#if CONFIG_DUAL_FILTER
mi->filter[0] = mbmi->interp_filter[0];
mi->filter[1] = mbmi->interp_filter[1];
#else
mi->filter = mbmi->interp_filter;
#endif
// Transform
mi->tx_type = mbmi->tx_type;
mi->tx_size = mbmi->tx_size;
#if CONFIG_CDEF
mi->cdef_level = cm->cdef_strengths[mbmi->cdef_strength] / CLPF_STRENGTHS;
mi->cdef_strength =
cm->cdef_strengths[mbmi->cdef_strength] % CLPF_STRENGTHS;
mi->cdef_strength += mi->cdef_strength == 3;
#endif
}
}
return 1;
}