1*77c1e3ccSAndroid Build Coastguard Worker /* 2*77c1e3ccSAndroid Build Coastguard Worker * Copyright (c) 2016, Alliance for Open Media. All rights reserved. 3*77c1e3ccSAndroid Build Coastguard Worker * 4*77c1e3ccSAndroid Build Coastguard Worker * This source code is subject to the terms of the BSD 2 Clause License and 5*77c1e3ccSAndroid Build Coastguard Worker * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6*77c1e3ccSAndroid Build Coastguard Worker * was not distributed with this source code in the LICENSE file, you can 7*77c1e3ccSAndroid Build Coastguard Worker * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8*77c1e3ccSAndroid Build Coastguard Worker * Media Patent License 1.0 was not distributed with this source code in the 9*77c1e3ccSAndroid Build Coastguard Worker * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10*77c1e3ccSAndroid Build Coastguard Worker */ 11*77c1e3ccSAndroid Build Coastguard Worker 12*77c1e3ccSAndroid Build Coastguard Worker #ifndef AOM_AOM_DSP_BITREADER_BUFFER_H_ 13*77c1e3ccSAndroid Build Coastguard Worker #define AOM_AOM_DSP_BITREADER_BUFFER_H_ 14*77c1e3ccSAndroid Build Coastguard Worker 15*77c1e3ccSAndroid Build Coastguard Worker #include <limits.h> 16*77c1e3ccSAndroid Build Coastguard Worker 17*77c1e3ccSAndroid Build Coastguard Worker #include "aom/aom_integer.h" 18*77c1e3ccSAndroid Build Coastguard Worker #include "config/aom_config.h" 19*77c1e3ccSAndroid Build Coastguard Worker 20*77c1e3ccSAndroid Build Coastguard Worker #ifdef __cplusplus 21*77c1e3ccSAndroid Build Coastguard Worker extern "C" { 22*77c1e3ccSAndroid Build Coastguard Worker #endif 23*77c1e3ccSAndroid Build Coastguard Worker 24*77c1e3ccSAndroid Build Coastguard Worker typedef void (*aom_rb_error_handler)(void *data); 25*77c1e3ccSAndroid Build Coastguard Worker 26*77c1e3ccSAndroid Build Coastguard Worker struct aom_read_bit_buffer { 27*77c1e3ccSAndroid Build Coastguard Worker const uint8_t *bit_buffer; 28*77c1e3ccSAndroid Build Coastguard Worker const uint8_t *bit_buffer_end; 29*77c1e3ccSAndroid Build Coastguard Worker uint32_t bit_offset; 30*77c1e3ccSAndroid Build Coastguard Worker 31*77c1e3ccSAndroid Build Coastguard Worker void *error_handler_data; 32*77c1e3ccSAndroid Build Coastguard Worker aom_rb_error_handler error_handler; 33*77c1e3ccSAndroid Build Coastguard Worker }; 34*77c1e3ccSAndroid Build Coastguard Worker 35*77c1e3ccSAndroid Build Coastguard Worker size_t aom_rb_bytes_read(const struct aom_read_bit_buffer *rb); 36*77c1e3ccSAndroid Build Coastguard Worker 37*77c1e3ccSAndroid Build Coastguard Worker int aom_rb_read_bit(struct aom_read_bit_buffer *rb); 38*77c1e3ccSAndroid Build Coastguard Worker 39*77c1e3ccSAndroid Build Coastguard Worker int aom_rb_read_literal(struct aom_read_bit_buffer *rb, int bits); 40*77c1e3ccSAndroid Build Coastguard Worker 41*77c1e3ccSAndroid Build Coastguard Worker uint32_t aom_rb_read_uvlc(struct aom_read_bit_buffer *rb); 42*77c1e3ccSAndroid Build Coastguard Worker 43*77c1e3ccSAndroid Build Coastguard Worker #if CONFIG_AV1_DECODER 44*77c1e3ccSAndroid Build Coastguard Worker uint32_t aom_rb_read_unsigned_literal(struct aom_read_bit_buffer *rb, int bits); 45*77c1e3ccSAndroid Build Coastguard Worker 46*77c1e3ccSAndroid Build Coastguard Worker int aom_rb_read_inv_signed_literal(struct aom_read_bit_buffer *rb, int bits); 47*77c1e3ccSAndroid Build Coastguard Worker 48*77c1e3ccSAndroid Build Coastguard Worker int16_t aom_rb_read_signed_primitive_refsubexpfin( 49*77c1e3ccSAndroid Build Coastguard Worker struct aom_read_bit_buffer *rb, uint16_t n, uint16_t k, int16_t ref); 50*77c1e3ccSAndroid Build Coastguard Worker #endif // CONFIG_AV1_DECODER 51*77c1e3ccSAndroid Build Coastguard Worker 52*77c1e3ccSAndroid Build Coastguard Worker #ifdef __cplusplus 53*77c1e3ccSAndroid Build Coastguard Worker } // extern "C" 54*77c1e3ccSAndroid Build Coastguard Worker #endif 55*77c1e3ccSAndroid Build Coastguard Worker 56*77c1e3ccSAndroid Build Coastguard Worker #endif // AOM_AOM_DSP_BITREADER_BUFFER_H_ 57