1 files changed, 58 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/global_motion_facade.h b/third_party/aom/av1/encoder/global_motion_facade.h
new file mode 100644
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--- /dev/null
+++ b/third_party/aom/av1/encoder/global_motion_facade.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2020, 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.
+ */
+
+#ifndef AOM_AV1_ENCODER_GLOBAL_MOTION_FACADE_H_
+#define AOM_AV1_ENCODER_GLOBAL_MOTION_FACADE_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct yv12_buffer_config;
+struct AV1_COMP;
+
+// Allocates memory for members of GlobalMotionData.
+static AOM_INLINE void gm_alloc_data(AV1_COMP *cpi, GlobalMotionData *gm_data) {
+  AV1_COMMON *cm = &cpi->common;
+  GlobalMotionInfo *gm_info = &cpi->gm_info;
+
+  CHECK_MEM_ERROR(cm, gm_data->segment_map,
+                  aom_malloc(sizeof(*gm_data->segment_map) *
+                             gm_info->segment_map_w * gm_info->segment_map_h));
+
+  av1_zero_array(gm_data->motion_models, RANSAC_NUM_MOTIONS);
+  for (int m = 0; m < RANSAC_NUM_MOTIONS; m++) {
+    CHECK_MEM_ERROR(cm, gm_data->motion_models[m].inliers,
+                    aom_malloc(sizeof(*gm_data->motion_models[m].inliers) * 2 *
+                               MAX_CORNERS));
+  }
+}
+
+// Deallocates the memory allocated for members of GlobalMotionData.
+static AOM_INLINE void gm_dealloc_data(GlobalMotionData *gm_data) {
+  aom_free(gm_data->segment_map);
+  gm_data->segment_map = NULL;
+  for (int m = 0; m < RANSAC_NUM_MOTIONS; m++) {
+    aom_free(gm_data->motion_models[m].inliers);
+    gm_data->motion_models[m].inliers = NULL;
+  }
+}
+
+void av1_compute_gm_for_valid_ref_frames(
+    AV1_COMP *cpi, struct aom_internal_error_info *error_info,
+    YV12_BUFFER_CONFIG *ref_buf[REF_FRAMES], int frame,
+    MotionModel *motion_models, uint8_t *segment_map, int segment_map_w,
+    int segment_map_h);
+void av1_compute_global_motion_facade(struct AV1_COMP *cpi);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // AOM_AV1_ENCODER_GLOBAL_MOTION_FACADE_H_