diff options
author | Matt A. Tobin <email@mattatobin.com> | 2020-04-07 23:30:51 -0400 |
---|---|---|
committer | Matt A. Tobin <email@mattatobin.com> | 2020-04-07 23:30:51 -0400 |
commit | 5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb (patch) | |
tree | 45d55e3e5e73c4255c4d71258d9be5b2d004d28f /third_party/aom/aom_dsp/buf_ans.c | |
parent | 50f1986697a7412e4160976fa5e11217b4ef1f44 (diff) | |
download | UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.gz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.lz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.xz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.zip |
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.
Diffstat (limited to 'third_party/aom/aom_dsp/buf_ans.c')
-rw-r--r-- | third_party/aom/aom_dsp/buf_ans.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/third_party/aom/aom_dsp/buf_ans.c b/third_party/aom/aom_dsp/buf_ans.c deleted file mode 100644 index f7703dffc..000000000 --- a/third_party/aom/aom_dsp/buf_ans.c +++ /dev/null @@ -1,70 +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 <string.h> - -#include "aom_dsp/buf_ans.h" -#include "aom_mem/aom_mem.h" -#include "aom/internal/aom_codec_internal.h" - -void aom_buf_ans_alloc(struct BufAnsCoder *c, - struct aom_internal_error_info *error) { - c->error = error; - assert(c->size > 1); - AOM_CHECK_MEM_ERROR(error, c->buf, aom_malloc(c->size * sizeof(*c->buf))); - // Initialize to overfull to trigger the assert in write. - c->offset = c->size + 1; -} - -void aom_buf_ans_free(struct BufAnsCoder *c) { - aom_free(c->buf); - c->buf = NULL; - c->size = 0; -} - -#if !ANS_MAX_SYMBOLS -void aom_buf_ans_grow(struct BufAnsCoder *c) { - struct buffered_ans_symbol *new_buf = NULL; - int new_size = c->size * 2; - AOM_CHECK_MEM_ERROR(c->error, new_buf, - aom_malloc(new_size * sizeof(*new_buf))); - memcpy(new_buf, c->buf, c->size * sizeof(*c->buf)); - aom_free(c->buf); - c->buf = new_buf; - c->size = new_size; -} -#endif - -void aom_buf_ans_flush(struct BufAnsCoder *const c) { - int offset; -#if ANS_MAX_SYMBOLS - if (c->offset == 0) return; -#endif - assert(c->offset > 0); - offset = c->offset - 1; - // Code the first symbol such that it brings the state to the smallest normal - // state from an initial state that would have been a subnormal/refill state. - if (c->buf[offset].method == ANS_METHOD_RANS) { - c->ans.state += c->buf[offset].val_start; - } else { - c->ans.state += c->buf[offset].val_start ? c->buf[offset].prob : 0; - } - for (offset = offset - 1; offset >= 0; --offset) { - if (c->buf[offset].method == ANS_METHOD_RANS) { - rans_write(&c->ans, c->buf[offset].val_start, c->buf[offset].prob); - } else { - rabs_write(&c->ans, (uint8_t)c->buf[offset].val_start, - (AnsP8)c->buf[offset].prob); - } - } - c->offset = 0; - c->output_bytes += ans_write_end(&c->ans); -} |