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, 301 deletions

diff --git a/third_party/aom/av1/common/mv.h b/third_party/aom/av1/common/mv.h
deleted file mode 100644
index 5b0225192..000000000
--- a/third_party/aom/av1/common/mv.h
+++ /dev/null
@@ -1,301 +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.
- */
-
-#ifndef AOM_AV1_COMMON_MV_H_
-#define AOM_AV1_COMMON_MV_H_
-
-#include "av1/common/common.h"
-#include "av1/common/common_data.h"
-#include "aom_dsp/aom_filter.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define INVALID_MV 0x80008000
-
-typedef struct mv {
-  int16_t row;
-  int16_t col;
-} MV;
-
-static const MV kZeroMv = { 0, 0 };
-
-typedef union int_mv {
-  uint32_t as_int;
-  MV as_mv;
-} int_mv; /* facilitates faster equality tests and copies */
-
-typedef struct mv32 {
-  int32_t row;
-  int32_t col;
-} MV32;
-
-// Bits of precision used for the model
-#define WARPEDMODEL_PREC_BITS 16
-#define WARPEDMODEL_ROW3HOMO_PREC_BITS 16
-
-#define WARPEDMODEL_TRANS_CLAMP (128 << WARPEDMODEL_PREC_BITS)
-#define WARPEDMODEL_NONDIAGAFFINE_CLAMP (1 << (WARPEDMODEL_PREC_BITS - 3))
-#define WARPEDMODEL_ROW3HOMO_CLAMP (1 << (WARPEDMODEL_PREC_BITS - 2))
-
-// Bits of subpel precision for warped interpolation
-#define WARPEDPIXEL_PREC_BITS 6
-#define WARPEDPIXEL_PREC_SHIFTS (1 << WARPEDPIXEL_PREC_BITS)
-
-#define WARP_PARAM_REDUCE_BITS 6
-
-#define WARPEDDIFF_PREC_BITS (WARPEDMODEL_PREC_BITS - WARPEDPIXEL_PREC_BITS)
-
-/* clang-format off */
-typedef enum ATTRIBUTE_PACKED {
-  IDENTITY = 0,      // identity transformation, 0-parameter
-  TRANSLATION = 1,   // translational motion 2-parameter
-  ROTZOOM = 2,       // simplified affine with rotation + zoom only, 4-parameter
-  AFFINE = 3,        // affine, 6-parameter
-  TRANS_TYPES,
-} TransformationType;
-/* clang-format on */
-
-// Number of types used for global motion (must be >= 3 and <= TRANS_TYPES)
-// The following can be useful:
-// GLOBAL_TRANS_TYPES 3 - up to rotation-zoom
-// GLOBAL_TRANS_TYPES 4 - up to affine
-// GLOBAL_TRANS_TYPES 6 - up to hor/ver trapezoids
-// GLOBAL_TRANS_TYPES 7 - up to full homography
-#define GLOBAL_TRANS_TYPES 4
-
-typedef struct {
-  int global_warp_allowed;
-  int local_warp_allowed;
-} WarpTypesAllowed;
-
-// number of parameters used by each transformation in TransformationTypes
-static const int trans_model_params[TRANS_TYPES] = { 0, 2, 4, 6 };
-
-// The order of values in the wmmat matrix below is best described
-// by the homography:
-//      [x'     (m2 m3 m0   [x
-//  z .  y'  =   m4 m5 m1 *  y
-//       1]      m6 m7 1)    1]
-typedef struct {
-  TransformationType wmtype;
-  int32_t wmmat[8];
-  int16_t alpha, beta, gamma, delta;
-  int8_t invalid;
-} WarpedMotionParams;
-
-/* clang-format off */
-static const WarpedMotionParams default_warp_params = {
-  IDENTITY,
-  { 0, 0, (1 << WARPEDMODEL_PREC_BITS), 0, 0, (1 << WARPEDMODEL_PREC_BITS), 0,
-    0 },
-  0, 0, 0, 0,
-  0,
-};
-/* clang-format on */
-
-// The following constants describe the various precisions
-// of different parameters in the global motion experiment.
-//
-// Given the general homography:
-//      [x'     (a  b  c   [x
-//  z .  y'  =   d  e  f *  y
-//       1]      g  h  i)    1]
-//
-// Constants using the name ALPHA here are related to parameters
-// a, b, d, e. Constants using the name TRANS are related
-// to parameters c and f.
-//
-// Anything ending in PREC_BITS is the number of bits of precision
-// to maintain when converting from double to integer.
-//
-// The ABS parameters are used to create an upper and lower bound
-// for each parameter. In other words, after a parameter is integerized
-// it is clamped between -(1 << ABS_XXX_BITS) and (1 << ABS_XXX_BITS).
-//
-// XXX_PREC_DIFF and XXX_DECODE_FACTOR
-// are computed once here to prevent repetitive
-// computation on the decoder side. These are
-// to allow the global motion parameters to be encoded in a lower
-// precision than the warped model precision. This means that they
-// need to be changed to warped precision when they are decoded.
-//
-// XX_MIN, XX_MAX are also computed to avoid repeated computation
-
-#define SUBEXPFIN_K 3
-#define GM_TRANS_PREC_BITS 6
-#define GM_ABS_TRANS_BITS 12
-#define GM_ABS_TRANS_ONLY_BITS (GM_ABS_TRANS_BITS - GM_TRANS_PREC_BITS + 3)
-#define GM_TRANS_PREC_DIFF (WARPEDMODEL_PREC_BITS - GM_TRANS_PREC_BITS)
-#define GM_TRANS_ONLY_PREC_DIFF (WARPEDMODEL_PREC_BITS - 3)
-#define GM_TRANS_DECODE_FACTOR (1 << GM_TRANS_PREC_DIFF)
-#define GM_TRANS_ONLY_DECODE_FACTOR (1 << GM_TRANS_ONLY_PREC_DIFF)
-
-#define GM_ALPHA_PREC_BITS 15
-#define GM_ABS_ALPHA_BITS 12
-#define GM_ALPHA_PREC_DIFF (WARPEDMODEL_PREC_BITS - GM_ALPHA_PREC_BITS)
-#define GM_ALPHA_DECODE_FACTOR (1 << GM_ALPHA_PREC_DIFF)
-
-#define GM_ROW3HOMO_PREC_BITS 16
-#define GM_ABS_ROW3HOMO_BITS 11
-#define GM_ROW3HOMO_PREC_DIFF \
-  (WARPEDMODEL_ROW3HOMO_PREC_BITS - GM_ROW3HOMO_PREC_BITS)
-#define GM_ROW3HOMO_DECODE_FACTOR (1 << GM_ROW3HOMO_PREC_DIFF)
-
-#define GM_TRANS_MAX (1 << GM_ABS_TRANS_BITS)
-#define GM_ALPHA_MAX (1 << GM_ABS_ALPHA_BITS)
-#define GM_ROW3HOMO_MAX (1 << GM_ABS_ROW3HOMO_BITS)
-
-#define GM_TRANS_MIN -GM_TRANS_MAX
-#define GM_ALPHA_MIN -GM_ALPHA_MAX
-#define GM_ROW3HOMO_MIN -GM_ROW3HOMO_MAX
-
-static INLINE int block_center_x(int mi_col, BLOCK_SIZE bs) {
-  const int bw = block_size_wide[bs];
-  return mi_col * MI_SIZE + bw / 2 - 1;
-}
-
-static INLINE int block_center_y(int mi_row, BLOCK_SIZE bs) {
-  const int bh = block_size_high[bs];
-  return mi_row * MI_SIZE + bh / 2 - 1;
-}
-
-static INLINE int convert_to_trans_prec(int allow_hp, int coor) {
-  if (allow_hp)
-    return ROUND_POWER_OF_TWO_SIGNED(coor, WARPEDMODEL_PREC_BITS - 3);
-  else
-    return ROUND_POWER_OF_TWO_SIGNED(coor, WARPEDMODEL_PREC_BITS - 2) * 2;
-}
-static INLINE void integer_mv_precision(MV *mv) {
-  int mod = (mv->row % 8);
-  if (mod != 0) {
-    mv->row -= mod;
-    if (abs(mod) > 4) {
-      if (mod > 0) {
-        mv->row += 8;
-      } else {
-        mv->row -= 8;
-      }
-    }
-  }
-
-  mod = (mv->col % 8);
-  if (mod != 0) {
-    mv->col -= mod;
-    if (abs(mod) > 4) {
-      if (mod > 0) {
-        mv->col += 8;
-      } else {
-        mv->col -= 8;
-      }
-    }
-  }
-}
-// Convert a global motion vector into a motion vector at the centre of the
-// given block.
-//
-// The resulting motion vector will have three fractional bits of precision. If
-// allow_hp is zero, the bottom bit will always be zero. If CONFIG_AMVR and
-// is_integer is true, the bottom three bits will be zero (so the motion vector
-// represents an integer)
-static INLINE int_mv gm_get_motion_vector(const WarpedMotionParams *gm,
-                                          int allow_hp, BLOCK_SIZE bsize,
-                                          int mi_col, int mi_row,
-                                          int is_integer) {
-  int_mv res;
-
-  if (gm->wmtype == IDENTITY) {
-    res.as_int = 0;
-    return res;
-  }
-
-  const int32_t *mat = gm->wmmat;
-  int x, y, tx, ty;
-
-  if (gm->wmtype == TRANSLATION) {
-    // All global motion vectors are stored with WARPEDMODEL_PREC_BITS (16)
-    // bits of fractional precision. The offset for a translation is stored in
-    // entries 0 and 1. For translations, all but the top three (two if
-    // cm->allow_high_precision_mv is false) fractional bits are always zero.
-    //
-    // After the right shifts, there are 3 fractional bits of precision. If
-    // allow_hp is false, the bottom bit is always zero (so we don't need a
-    // call to convert_to_trans_prec here)
-    res.as_mv.row = gm->wmmat[0] >> GM_TRANS_ONLY_PREC_DIFF;
-    res.as_mv.col = gm->wmmat[1] >> GM_TRANS_ONLY_PREC_DIFF;
-    assert(IMPLIES(1 & (res.as_mv.row | res.as_mv.col), allow_hp));
-    if (is_integer) {
-      integer_mv_precision(&res.as_mv);
-    }
-    return res;
-  }
-
-  x = block_center_x(mi_col, bsize);
-  y = block_center_y(mi_row, bsize);
-
-  if (gm->wmtype == ROTZOOM) {
-    assert(gm->wmmat[5] == gm->wmmat[2]);
-    assert(gm->wmmat[4] == -gm->wmmat[3]);
-  }
-
-  const int xc =
-      (mat[2] - (1 << WARPEDMODEL_PREC_BITS)) * x + mat[3] * y + mat[0];
-  const int yc =
-      mat[4] * x + (mat[5] - (1 << WARPEDMODEL_PREC_BITS)) * y + mat[1];
-  tx = convert_to_trans_prec(allow_hp, xc);
-  ty = convert_to_trans_prec(allow_hp, yc);
-
-  res.as_mv.row = ty;
-  res.as_mv.col = tx;
-
-  if (is_integer) {
-    integer_mv_precision(&res.as_mv);
-  }
-  return res;
-}
-
-static INLINE TransformationType get_gmtype(const WarpedMotionParams *gm) {
-  if (gm->wmmat[5] == (1 << WARPEDMODEL_PREC_BITS) && !gm->wmmat[4] &&
-      gm->wmmat[2] == (1 << WARPEDMODEL_PREC_BITS) && !gm->wmmat[3]) {
-    return ((!gm->wmmat[1] && !gm->wmmat[0]) ? IDENTITY : TRANSLATION);
-  }
-  if (gm->wmmat[2] == gm->wmmat[5] && gm->wmmat[3] == -gm->wmmat[4])
-    return ROTZOOM;
-  else
-    return AFFINE;
-}
-
-typedef struct candidate_mv {
-  int_mv this_mv;
-  int_mv comp_mv;
-  int weight;
-} CANDIDATE_MV;
-
-static INLINE int is_zero_mv(const MV *mv) {
-  return *((const uint32_t *)mv) == 0;
-}
-
-static INLINE int is_equal_mv(const MV *a, const MV *b) {
-  return *((const uint32_t *)a) == *((const uint32_t *)b);
-}
-
-static INLINE void clamp_mv(MV *mv, int min_col, int max_col, int min_row,
-                            int max_row) {
-  mv->col = clamp(mv->col, min_col, max_col);
-  mv->row = clamp(mv->row, min_row, max_row);
-}
-
-#ifdef __cplusplus
-}  // extern "C"
-#endif
-
-#endif  // AOM_AV1_COMMON_MV_H_