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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/bitreader_buffer.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/bitreader_buffer.h b/third_party/aom/aom_dsp/bitreader_buffer.h new file mode 100644 index 0000000000..359fbe5194 --- /dev/null +++ b/third_party/aom/aom_dsp/bitreader_buffer.h @@ -0,0 +1,53 @@ +/* + * 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. + */ + +#ifndef AOM_AOM_DSP_BITREADER_BUFFER_H_ +#define AOM_AOM_DSP_BITREADER_BUFFER_H_ + +#include <limits.h> + +#include "aom/aom_integer.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef void (*aom_rb_error_handler)(void *data); + +struct aom_read_bit_buffer { + const uint8_t *bit_buffer; + const uint8_t *bit_buffer_end; + uint32_t bit_offset; + + void *error_handler_data; + aom_rb_error_handler error_handler; +}; + +size_t aom_rb_bytes_read(const struct aom_read_bit_buffer *rb); + +int aom_rb_read_bit(struct aom_read_bit_buffer *rb); + +int aom_rb_read_literal(struct aom_read_bit_buffer *rb, int bits); + +uint32_t aom_rb_read_unsigned_literal(struct aom_read_bit_buffer *rb, int bits); + +int aom_rb_read_inv_signed_literal(struct aom_read_bit_buffer *rb, int bits); + +uint32_t aom_rb_read_uvlc(struct aom_read_bit_buffer *rb); + +int16_t aom_rb_read_signed_primitive_refsubexpfin( + struct aom_read_bit_buffer *rb, uint16_t n, uint16_t k, int16_t ref); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // AOM_AOM_DSP_BITREADER_BUFFER_H_ |