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, 0 insertions, 125 deletions

diff --git a/third_party/aom/av1/encoder/hash.c b/third_party/aom/av1/encoder/hash.c
deleted file mode 100644
index 180115d9f..000000000
--- a/third_party/aom/av1/encoder/hash.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * 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.
- */
-
-#include "av1/encoder/hash.h"
-
-static void crc_calculator_process_data(CRC_CALCULATOR *p_crc_calculator,
-                                        uint8_t *pData, uint32_t dataLength) {
-  for (uint32_t i = 0; i < dataLength; i++) {
-    const uint8_t index =
-        (p_crc_calculator->remainder >> (p_crc_calculator->bits - 8)) ^
-        pData[i];
-    p_crc_calculator->remainder <<= 8;
-    p_crc_calculator->remainder ^= p_crc_calculator->table[index];
-  }
-}
-
-static void crc_calculator_reset(CRC_CALCULATOR *p_crc_calculator) {
-  p_crc_calculator->remainder = 0;
-}
-
-static uint32_t crc_calculator_get_crc(CRC_CALCULATOR *p_crc_calculator) {
-  return p_crc_calculator->remainder & p_crc_calculator->final_result_mask;
-}
-
-static void crc_calculator_init_table(CRC_CALCULATOR *p_crc_calculator) {
-  const uint32_t high_bit = 1 << (p_crc_calculator->bits - 1);
-  const uint32_t byte_high_bit = 1 << (8 - 1);
-
-  for (uint32_t value = 0; value < 256; value++) {
-    uint32_t remainder = 0;
-    for (uint8_t mask = byte_high_bit; mask != 0; mask >>= 1) {
-      if (value & mask) {
-        remainder ^= high_bit;
-      }
-
-      if (remainder & high_bit) {
-        remainder <<= 1;
-        remainder ^= p_crc_calculator->trunc_poly;
-      } else {
-        remainder <<= 1;
-      }
-    }
-    p_crc_calculator->table[value] = remainder;
-  }
-}
-
-void av1_crc_calculator_init(CRC_CALCULATOR *p_crc_calculator, uint32_t bits,
-                             uint32_t truncPoly) {
-  p_crc_calculator->remainder = 0;
-  p_crc_calculator->bits = bits;
-  p_crc_calculator->trunc_poly = truncPoly;
-  p_crc_calculator->final_result_mask = (1 << bits) - 1;
-  crc_calculator_init_table(p_crc_calculator);
-}
-
-uint32_t av1_get_crc_value(void *crc_calculator, uint8_t *p, int length) {
-  CRC_CALCULATOR *p_crc_calculator = (CRC_CALCULATOR *)crc_calculator;
-  crc_calculator_reset(p_crc_calculator);
-  crc_calculator_process_data(p_crc_calculator, p, length);
-  return crc_calculator_get_crc(p_crc_calculator);
-}
-
-/* CRC-32C (iSCSI) polynomial in reversed bit order. */
-#define POLY 0x82f63b78
-
-/* Construct table for software CRC-32C calculation. */
-void av1_crc32c_calculator_init(CRC32C *p_crc32c) {
-  uint32_t crc;
-
-  for (int n = 0; n < 256; n++) {
-    crc = n;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    crc = crc & 1 ? (crc >> 1) ^ POLY : crc >> 1;
-    p_crc32c->table[0][n] = crc;
-  }
-  for (int n = 0; n < 256; n++) {
-    crc = p_crc32c->table[0][n];
-    for (int k = 1; k < 8; k++) {
-      crc = p_crc32c->table[0][crc & 0xff] ^ (crc >> 8);
-      p_crc32c->table[k][n] = crc;
-    }
-  }
-}
-
-/* Table-driven software version as a fall-back.  This is about 15 times slower
- than using the hardware instructions.  This assumes little-endian integers,
- as is the case on Intel processors that the assembler code here is for. */
-uint32_t av1_get_crc32c_value_c(CRC32C *p, uint8_t *buf, size_t len) {
-  const uint8_t *next = (const uint8_t *)(buf);
-  uint64_t crc;
-
-  crc = 0 ^ 0xffffffff;
-  while (len && ((uintptr_t)next & 7) != 0) {
-    crc = p->table[0][(crc ^ *next++) & 0xff] ^ (crc >> 8);
-    len--;
-  }
-  while (len >= 8) {
-    crc ^= *(uint64_t *)next;
-    crc = p->table[7][crc & 0xff] ^ p->table[6][(crc >> 8) & 0xff] ^
-          p->table[5][(crc >> 16) & 0xff] ^ p->table[4][(crc >> 24) & 0xff] ^
-          p->table[3][(crc >> 32) & 0xff] ^ p->table[2][(crc >> 40) & 0xff] ^
-          p->table[1][(crc >> 48) & 0xff] ^ p->table[0][crc >> 56];
-    next += 8;
-    len -= 8;
-  }
-  while (len) {
-    crc = p->table[0][(crc ^ *next++) & 0xff] ^ (crc >> 8);
-    len--;
-  }
-  return (uint32_t)crc ^ 0xffffffff;
-}