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

Add initial support for AV1 video.

1 files changed, 61 insertions, 0 deletions

diff --git a/third_party/aom/av1/common/av1_inv_txfm1d.h b/third_party/aom/av1/common/av1_inv_txfm1d.h
new file mode 100644
index 000000000..c31c019aa
--- /dev/null
+++ b/third_party/aom/av1/common/av1_inv_txfm1d.h
@@ -0,0 +1,61 @@
+/*
+ * 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_AV1_COMMON_AV1_INV_TXFM1D_H_
+#define AOM_AV1_COMMON_AV1_INV_TXFM1D_H_
+
+#include "av1/common/av1_txfm.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static INLINE int32_t clamp_value(int32_t value, int8_t bit) {
+  if (bit <= 0) return value;  // Do nothing for invalid clamp bit.
+  const int64_t max_value = (1LL << (bit - 1)) - 1;
+  const int64_t min_value = -(1LL << (bit - 1));
+  return (int32_t)clamp64(value, min_value, max_value);
+}
+
+static INLINE void clamp_buf(int32_t *buf, int32_t size, int8_t bit) {
+  for (int i = 0; i < size; ++i) buf[i] = clamp_value(buf[i], bit);
+}
+
+void av1_idct4_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                   const int8_t *stage_range);
+void av1_idct8_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                   const int8_t *stage_range);
+void av1_idct16_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                    const int8_t *stage_range);
+void av1_idct32_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                    const int8_t *stage_range);
+void av1_idct64_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                    const int8_t *stage_range);
+void av1_iadst4_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                    const int8_t *stage_range);
+void av1_iadst8_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                    const int8_t *stage_range);
+void av1_iadst16_new(const int32_t *input, int32_t *output, int8_t cos_bit,
+                     const int8_t *stage_range);
+void av1_iidentity4_c(const int32_t *input, int32_t *output, int8_t cos_bit,
+                      const int8_t *stage_range);
+void av1_iidentity8_c(const int32_t *input, int32_t *output, int8_t cos_bit,
+                      const int8_t *stage_range);
+void av1_iidentity16_c(const int32_t *input, int32_t *output, int8_t cos_bit,
+                       const int8_t *stage_range);
+void av1_iidentity32_c(const int32_t *input, int32_t *output, int8_t cos_bit,
+                       const int8_t *stage_range);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // AOM_AV1_COMMON_AV1_INV_TXFM1D_H_