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, 210 deletions

diff --git a/third_party/aom/av1/encoder/lookahead.c b/third_party/aom/av1/encoder/lookahead.c
deleted file mode 100644
index 1bf8ecbac..000000000
--- a/third_party/aom/av1/encoder/lookahead.c
+++ /dev/null
@@ -1,210 +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 <assert.h>
-#include <stdlib.h>
-
-#include "config/aom_config.h"
-
-#include "av1/common/common.h"
-#include "av1/encoder/encoder.h"
-#include "av1/encoder/extend.h"
-#include "av1/encoder/lookahead.h"
-
-/* Return the buffer at the given absolute index and increment the index */
-static struct lookahead_entry *pop(struct lookahead_ctx *ctx, int *idx) {
-  int index = *idx;
-  struct lookahead_entry *buf = ctx->buf + index;
-
-  assert(index < ctx->max_sz);
-  if (++index >= ctx->max_sz) index -= ctx->max_sz;
-  *idx = index;
-  return buf;
-}
-
-void av1_lookahead_destroy(struct lookahead_ctx *ctx) {
-  if (ctx) {
-    if (ctx->buf) {
-      int i;
-
-      for (i = 0; i < ctx->max_sz; i++) aom_free_frame_buffer(&ctx->buf[i].img);
-      free(ctx->buf);
-    }
-    free(ctx);
-  }
-}
-
-struct lookahead_ctx *av1_lookahead_init(
-    unsigned int width, unsigned int height, unsigned int subsampling_x,
-    unsigned int subsampling_y, int use_highbitdepth, unsigned int depth) {
-  struct lookahead_ctx *ctx = NULL;
-
-  // Clamp the lookahead queue depth
-  depth = clamp(depth, 1, MAX_LAG_BUFFERS);
-
-  // Allocate memory to keep previous source frames available.
-  depth += MAX_PRE_FRAMES;
-
-  // Allocate the lookahead structures
-  ctx = calloc(1, sizeof(*ctx));
-  if (ctx) {
-    const int legacy_byte_alignment = 0;
-    unsigned int i;
-    ctx->max_sz = depth;
-    ctx->buf = calloc(depth, sizeof(*ctx->buf));
-    if (!ctx->buf) goto bail;
-    for (i = 0; i < depth; i++)
-      if (aom_alloc_frame_buffer(&ctx->buf[i].img, width, height, subsampling_x,
-                                 subsampling_y, use_highbitdepth,
-                                 AOM_BORDER_IN_PIXELS, legacy_byte_alignment))
-        goto bail;
-  }
-  return ctx;
-bail:
-  av1_lookahead_destroy(ctx);
-  return NULL;
-}
-
-#define USE_PARTIAL_COPY 0
-
-int av1_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src,
-                       int64_t ts_start, int64_t ts_end, int use_highbitdepth,
-                       aom_enc_frame_flags_t flags) {
-  struct lookahead_entry *buf;
-#if USE_PARTIAL_COPY
-  int row, col, active_end;
-  int mb_rows = (src->y_height + 15) >> 4;
-  int mb_cols = (src->y_width + 15) >> 4;
-#endif
-  int width = src->y_crop_width;
-  int height = src->y_crop_height;
-  int uv_width = src->uv_crop_width;
-  int uv_height = src->uv_crop_height;
-  int subsampling_x = src->subsampling_x;
-  int subsampling_y = src->subsampling_y;
-  int larger_dimensions, new_dimensions;
-
-  if (ctx->sz + 1 + MAX_PRE_FRAMES > ctx->max_sz) return 1;
-  ctx->sz++;
-  buf = pop(ctx, &ctx->write_idx);
-
-  new_dimensions = width != buf->img.y_crop_width ||
-                   height != buf->img.y_crop_height ||
-                   uv_width != buf->img.uv_crop_width ||
-                   uv_height != buf->img.uv_crop_height;
-  larger_dimensions = width > buf->img.y_width || height > buf->img.y_height ||
-                      uv_width > buf->img.uv_width ||
-                      uv_height > buf->img.uv_height;
-  assert(!larger_dimensions || new_dimensions);
-
-#if USE_PARTIAL_COPY
-  // TODO(jkoleszar): This is disabled for now, as
-  // av1_copy_and_extend_frame_with_rect is not subsampling/alpha aware.
-
-  // Only do this partial copy if the following conditions are all met:
-  // 1. Lookahead queue has has size of 1.
-  // 2. Active map is provided.
-  // 3. This is not a key frame, golden nor altref frame.
-  if (!new_dimensions && ctx->max_sz == 1 && active_map && !flags) {
-    for (row = 0; row < mb_rows; ++row) {
-      col = 0;
-
-      while (1) {
-        // Find the first active macroblock in this row.
-        for (; col < mb_cols; ++col) {
-          if (active_map[col]) break;
-        }
-
-        // No more active macroblock in this row.
-        if (col == mb_cols) break;
-
-        // Find the end of active region in this row.
-        active_end = col;
-
-        for (; active_end < mb_cols; ++active_end) {
-          if (!active_map[active_end]) break;
-        }
-
-        // Only copy this active region.
-        av1_copy_and_extend_frame_with_rect(src, &buf->img, row << 4, col << 4,
-                                            16, (active_end - col) << 4);
-
-        // Start again from the end of this active region.
-        col = active_end;
-      }
-
-      active_map += mb_cols;
-    }
-  } else {
-#endif
-    if (larger_dimensions) {
-      YV12_BUFFER_CONFIG new_img;
-      memset(&new_img, 0, sizeof(new_img));
-      if (aom_alloc_frame_buffer(&new_img, width, height, subsampling_x,
-                                 subsampling_y, use_highbitdepth,
-                                 AOM_BORDER_IN_PIXELS, 0))
-        return 1;
-      aom_free_frame_buffer(&buf->img);
-      buf->img = new_img;
-    } else if (new_dimensions) {
-      buf->img.y_crop_width = src->y_crop_width;
-      buf->img.y_crop_height = src->y_crop_height;
-      buf->img.uv_crop_width = src->uv_crop_width;
-      buf->img.uv_crop_height = src->uv_crop_height;
-      buf->img.subsampling_x = src->subsampling_x;
-      buf->img.subsampling_y = src->subsampling_y;
-    }
-    // Partial copy not implemented yet
-    av1_copy_and_extend_frame(src, &buf->img);
-#if USE_PARTIAL_COPY
-  }
-#endif
-
-  buf->ts_start = ts_start;
-  buf->ts_end = ts_end;
-  buf->flags = flags;
-  return 0;
-}
-
-struct lookahead_entry *av1_lookahead_pop(struct lookahead_ctx *ctx,
-                                          int drain) {
-  struct lookahead_entry *buf = NULL;
-
-  if (ctx && ctx->sz && (drain || ctx->sz == ctx->max_sz - MAX_PRE_FRAMES)) {
-    buf = pop(ctx, &ctx->read_idx);
-    ctx->sz--;
-  }
-  return buf;
-}
-
-struct lookahead_entry *av1_lookahead_peek(struct lookahead_ctx *ctx,
-                                           int index) {
-  struct lookahead_entry *buf = NULL;
-
-  if (index >= 0) {
-    // Forward peek
-    if (index < ctx->sz) {
-      index += ctx->read_idx;
-      if (index >= ctx->max_sz) index -= ctx->max_sz;
-      buf = ctx->buf + index;
-    }
-  } else if (index < 0) {
-    // Backward peek
-    if (-index <= MAX_PRE_FRAMES) {
-      index += (int)(ctx->read_idx);
-      if (index < 0) index += (int)(ctx->max_sz);
-      buf = ctx->buf + index;
-    }
-  }
-
-  return buf;
-}
-
-unsigned int av1_lookahead_depth(struct lookahead_ctx *ctx) { return ctx->sz; }