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-rw-r--r--third_party/aom/av1/encoder/lookahead.c210
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; }
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