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authorMatt A. Tobin <email@mattatobin.com>2020-04-07 23:30:51 -0400
committerMatt A. Tobin <email@mattatobin.com>2020-04-07 23:30:51 -0400
commit5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb (patch)
tree45d55e3e5e73c4255c4d71258d9be5b2d004d28f /third_party/aom/aom_dsp/bitreader_buffer.c
parent50f1986697a7412e4160976fa5e11217b4ef1f44 (diff)
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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/bitreader_buffer.c')
-rw-r--r--third_party/aom/aom_dsp/bitreader_buffer.c67
1 files changed, 0 insertions, 67 deletions
diff --git a/third_party/aom/aom_dsp/bitreader_buffer.c b/third_party/aom/aom_dsp/bitreader_buffer.c
deleted file mode 100644
index b53211784..000000000
--- a/third_party/aom/aom_dsp/bitreader_buffer.c
+++ /dev/null
@@ -1,67 +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 "config/aom_config.h"
-
-#include "aom_dsp/bitreader_buffer.h"
-
-size_t aom_rb_bytes_read(const struct aom_read_bit_buffer *rb) {
- return (rb->bit_offset + 7) >> 3;
-}
-
-int aom_rb_read_bit(struct aom_read_bit_buffer *rb) {
- const uint32_t off = rb->bit_offset;
- const uint32_t p = off >> 3;
- const int q = 7 - (int)(off & 0x7);
- if (rb->bit_buffer + p < rb->bit_buffer_end) {
- const int bit = (rb->bit_buffer[p] >> q) & 1;
- rb->bit_offset = off + 1;
- return bit;
- } else {
- if (rb->error_handler) rb->error_handler(rb->error_handler_data);
- return 0;
- }
-}
-
-int aom_rb_read_literal(struct aom_read_bit_buffer *rb, int bits) {
- assert(bits <= 31);
- int value = 0, bit;
- for (bit = bits - 1; bit >= 0; bit--) value |= aom_rb_read_bit(rb) << bit;
- return value;
-}
-
-uint32_t aom_rb_read_unsigned_literal(struct aom_read_bit_buffer *rb,
- int bits) {
- assert(bits <= 32);
- uint32_t value = 0;
- int bit;
- for (bit = bits - 1; bit >= 0; bit--)
- value |= (uint32_t)aom_rb_read_bit(rb) << bit;
- return value;
-}
-
-int aom_rb_read_inv_signed_literal(struct aom_read_bit_buffer *rb, int bits) {
- const int nbits = sizeof(unsigned) * 8 - bits - 1;
- const unsigned value = (unsigned)aom_rb_read_literal(rb, bits + 1) << nbits;
- return ((int)value) >> nbits;
-}
-
-uint32_t aom_rb_read_uvlc(struct aom_read_bit_buffer *rb) {
- int leading_zeros = 0;
- while (!aom_rb_read_bit(rb)) ++leading_zeros;
- // Maximum 32 bits.
- if (leading_zeros >= 32) return UINT32_MAX;
- const uint32_t base = (1u << leading_zeros) - 1;
- const uint32_t value = aom_rb_read_literal(rb, leading_zeros);
- return base + value;
-}