Import aom library

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

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 29 insertions, 0 deletions

diff --git a/third_party/aom/aom_dsp/fwd_txfm.h b/third_party/aom/aom_dsp/fwd_txfm.h
new file mode 100644
index 000000000..579dbd06e
--- /dev/null
+++ b/third_party/aom/aom_dsp/fwd_txfm.h
@@ -0,0 +1,29 @@
+/*
+ * 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_DSP_FWD_TXFM_H_
+#define AOM_DSP_FWD_TXFM_H_
+
+#include "aom_dsp/txfm_common.h"
+
+static INLINE tran_high_t saturate_int16(tran_high_t value) {
+  tran_high_t result;
+  result = value > INT16_MAX ? INT16_MAX : value;
+  return result < INT16_MIN ? INT16_MIN : result;
+}
+
+static INLINE tran_high_t fdct_round_shift(tran_high_t input) {
+  tran_high_t rv = ROUND_POWER_OF_TWO(input, DCT_CONST_BITS);
+  return rv;
+}
+
+void aom_fdct32(const tran_high_t *input, tran_high_t *output, int round);
+#endif  // AOM_DSP_FWD_TXFM_H_