Move aom source to a sub-directory under media/libaom

There is no damned reason to treat this differently than any other media lib given its license and there never was.

1 files changed, 117 insertions, 0 deletions

diff --git a/media/libaom/src/av1/decoder/inspection.c b/media/libaom/src/av1/decoder/inspection.c
new file mode 100644
index 0000000000..e6c89298a4
--- /dev/null
+++ b/media/libaom/src/av1/decoder/inspection.c
@@ -0,0 +1,117 @@
+/*
+ * 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"
+#include "av1/common/cdef.h"
+
+static void ifd_init_mi_rc(insp_frame_data *fd, int mi_cols, int mi_rows) {
+  fd->mi_cols = mi_cols;
+  fd->mi_rows = mi_rows;
+  fd->mi_grid = (insp_mi_data *)aom_malloc(sizeof(insp_mi_data) * fd->mi_rows *
+                                           fd->mi_cols);
+}
+
+void ifd_init(insp_frame_data *fd, int frame_width, int frame_height) {
+  int mi_cols = ALIGN_POWER_OF_TWO(frame_width, 3) >> MI_SIZE_LOG2;
+  int mi_rows = ALIGN_POWER_OF_TWO(frame_height, 3) >> MI_SIZE_LOG2;
+  ifd_init_mi_rc(fd, mi_cols, mi_rows);
+}
+
+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;
+  if (fd->mi_rows != cm->mi_rows || fd->mi_cols != cm->mi_cols) {
+    ifd_clear(fd);
+    ifd_init_mi_rc(fd, cm->mi_rows, cm->mi_cols);
+  }
+  fd->show_frame = cm->show_frame;
+  fd->frame_type = cm->frame_type;
+  fd->base_qindex = cm->base_qindex;
+  // Set width and height of the first tile until generic support can be added
+  TileInfo tile_info;
+  av1_tile_set_row(&tile_info, cm, 0);
+  av1_tile_set_col(&tile_info, cm, 0);
+  fd->tile_mi_cols = tile_info.mi_col_end - tile_info.mi_col_start;
+  fd->tile_mi_rows = tile_info.mi_row_end - tile_info.mi_row_start;
+  fd->delta_q_present_flag = cm->delta_q_present_flag;
+  fd->delta_q_res = cm->delta_q_res;
+#if CONFIG_ACCOUNTING
+  fd->accounting = &pbi->accounting;
+#endif
+  // TODO(negge): copy per frame CDEF data
+  int i, j;
+  for (i = 0; i < MAX_SEGMENTS; i++) {
+    for (j = 0; j < 2; j++) {
+      fd->y_dequant[i][j] = cm->y_dequant_QTX[i][j];
+      fd->u_dequant[i][j] = cm->u_dequant_QTX[i][j];
+      fd->v_dequant[i][j] = cm->v_dequant_QTX[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];
+      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 = UV_MODE_INVALID;
+      }
+      // Block Size
+      mi->sb_type = mbmi->sb_type;
+      // Skip Flag
+      mi->skip = mbmi->skip;
+      mi->filter[0] = av1_extract_interp_filter(mbmi->interp_filters, 0);
+      mi->filter[1] = av1_extract_interp_filter(mbmi->interp_filters, 1);
+      mi->dual_filter_type = mi->filter[0] * 3 + mi->filter[1];
+      // Transform
+      // TODO(anyone): extract tx type info from mbmi->txk_type[].
+      mi->tx_type = DCT_DCT;
+      mi->tx_size = mbmi->tx_size;
+
+      mi->cdef_level =
+          cm->cdef_strengths[mbmi->cdef_strength] / CDEF_SEC_STRENGTHS;
+      mi->cdef_strength =
+          cm->cdef_strengths[mbmi->cdef_strength] % CDEF_SEC_STRENGTHS;
+      mi->cdef_strength += mi->cdef_strength == 3;
+      if (mbmi->uv_mode == UV_CFL_PRED) {
+        mi->cfl_alpha_idx = mbmi->cfl_alpha_idx;
+        mi->cfl_alpha_sign = mbmi->cfl_alpha_signs;
+      } else {
+        mi->cfl_alpha_idx = 0;
+        mi->cfl_alpha_sign = 0;
+      }
+      // delta_q
+      mi->current_qindex = mbmi->current_qindex;
+    }
+  }
+  return 1;
+}