Merge pull request #850 from trav90/add-av1-support

Add initial support for AV1 video.

1 files changed, 47 insertions, 0 deletions

diff --git a/third_party/aom/aom_dsp/intrapred_common.h b/third_party/aom/aom_dsp/intrapred_common.h
new file mode 100644
index 000000000..3ec62a86e
--- /dev/null
+++ b/third_party/aom/aom_dsp/intrapred_common.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2016, 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_AOM_DSP_INTRAPRED_COMMON_H_
+#define AOM_AOM_DSP_INTRAPRED_COMMON_H_
+
+#include "config/aom_config.h"
+
+// Weights are quadratic from '1' to '1 / block_size', scaled by
+// 2^sm_weight_log2_scale.
+static const int sm_weight_log2_scale = 8;
+
+// max(block_size_wide[BLOCK_LARGEST], block_size_high[BLOCK_LARGEST])
+#define MAX_BLOCK_DIM 64
+
+/* clang-format off */
+static const uint8_t sm_weight_arrays[2 * MAX_BLOCK_DIM] = {
+  // Unused, because we always offset by bs, which is at least 2.
+  0, 0,
+  // bs = 2
+  255, 128,
+  // bs = 4
+  255, 149, 85, 64,
+  // bs = 8
+  255, 197, 146, 105, 73, 50, 37, 32,
+  // bs = 16
+  255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16,
+  // bs = 32
+  255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74,
+  66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8,
+  // bs = 64
+  255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156,
+  150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69,
+  65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15,
+  13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4,
+};
+/* clang-format on */
+
+#endif  // AOM_AOM_DSP_INTRAPRED_COMMON_H_