From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- third_party/aom/aom_dsp/daalaboolreader.c | 47 +++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 third_party/aom/aom_dsp/daalaboolreader.c (limited to 'third_party/aom/aom_dsp/daalaboolreader.c') diff --git a/third_party/aom/aom_dsp/daalaboolreader.c b/third_party/aom/aom_dsp/daalaboolreader.c new file mode 100644 index 0000000000..6c2259f233 --- /dev/null +++ b/third_party/aom/aom_dsp/daalaboolreader.c @@ -0,0 +1,47 @@ +/* + * 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 "aom_dsp/daalaboolreader.h" + +int aom_daala_reader_init(daala_reader *r, const uint8_t *buffer, int size) { + if (size && !buffer) { + return 1; + } + r->buffer_end = buffer + size; + r->buffer = buffer; + od_ec_dec_init(&r->ec, buffer, size); +#if CONFIG_ACCOUNTING + r->accounting = NULL; +#endif + return 0; +} + +const uint8_t *aom_daala_reader_find_begin(daala_reader *r) { + return r->buffer; +} + +const uint8_t *aom_daala_reader_find_end(daala_reader *r) { + return r->buffer_end; +} + +uint32_t aom_daala_reader_tell(const daala_reader *r) { + return od_ec_dec_tell(&r->ec); +} + +uint32_t aom_daala_reader_tell_frac(const daala_reader *r) { + return od_ec_dec_tell_frac(&r->ec); +} + +int aom_daala_reader_has_overflowed(const daala_reader *r) { + const uint32_t tell_bits = aom_daala_reader_tell(r); + const uint32_t tell_bytes = (tell_bits + 7) >> 3; + return ((ptrdiff_t)tell_bytes > r->buffer_end - r->buffer); +} -- cgit v1.2.3