| /* |
| * 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_DSP_DAALABOOLREADER_H_ |
| #define AOM_DSP_DAALABOOLREADER_H_ |
| |
| #include "aom/aom_integer.h" |
| #include "aom_dsp/entdec.h" |
| #include "aom_dsp/prob.h" |
| #if CONFIG_ACCOUNTING |
| #include "av1/decoder/accounting.h" |
| #endif |
| #if CONFIG_BITSTREAM_DEBUG |
| #include <stdio.h> |
| #include "aom_util/debug_util.h" |
| #endif // CONFIG_BITSTREAM_DEBUG |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct daala_reader { |
| const uint8_t *buffer; |
| const uint8_t *buffer_end; |
| od_ec_dec ec; |
| #if CONFIG_ACCOUNTING |
| Accounting *accounting; |
| #endif |
| }; |
| |
| typedef struct daala_reader daala_reader; |
| |
| int aom_daala_reader_init(daala_reader *r, const uint8_t *buffer, int size); |
| const uint8_t *aom_daala_reader_find_end(daala_reader *r); |
| uint32_t aom_daala_reader_tell(const daala_reader *r); |
| uint32_t aom_daala_reader_tell_frac(const daala_reader *r); |
| |
| static INLINE int aom_daala_read(daala_reader *r, int prob) { |
| int bit; |
| int p = (0x7FFFFF - (prob << 15) + prob) >> 8; |
| #if CONFIG_BITSTREAM_DEBUG |
| /*{ |
| const int queue_r = bitstream_queue_get_read(); |
| const int frame_idx = bitstream_queue_get_frame_read(); |
| if (frame_idx == 0 && queue_r == 0) { |
| fprintf(stderr, "\n *** bitstream queue at frame_idx_r %d queue_r %d\n", |
| frame_idx, queue_r); |
| } |
| }*/ |
| #endif |
| |
| bit = od_ec_decode_bool_q15(&r->ec, p); |
| |
| #if CONFIG_BITSTREAM_DEBUG |
| { |
| int i; |
| int ref_bit, ref_nsymbs; |
| aom_cdf_prob ref_cdf[16]; |
| const int queue_r = bitstream_queue_get_read(); |
| const int frame_idx = bitstream_queue_get_frame_read(); |
| bitstream_queue_pop(&ref_bit, ref_cdf, &ref_nsymbs); |
| if (ref_nsymbs != 2) { |
| fprintf(stderr, |
| "\n *** [bit] nsymbs error, frame_idx_r %d nsymbs %d ref_nsymbs " |
| "%d queue_r %d\n", |
| frame_idx, 2, ref_nsymbs, queue_r); |
| assert(0); |
| } |
| if ((ref_nsymbs != 2) || (ref_cdf[0] != (aom_cdf_prob)p) || |
| (ref_cdf[1] != 32767)) { |
| fprintf(stderr, |
| "\n *** [bit] cdf error, frame_idx_r %d cdf {%d, %d} ref_cdf {%d", |
| frame_idx, p, 32767, ref_cdf[0]); |
| for (i = 1; i < ref_nsymbs; ++i) fprintf(stderr, ", %d", ref_cdf[i]); |
| fprintf(stderr, "} queue_r %d\n", queue_r); |
| assert(0); |
| } |
| if (bit != ref_bit) { |
| fprintf(stderr, |
| "\n *** [bit] symb error, frame_idx_r %d symb %d ref_symb %d " |
| "queue_r %d\n", |
| frame_idx, bit, ref_bit, queue_r); |
| assert(0); |
| } |
| } |
| #endif |
| |
| return bit; |
| } |
| |
| #if CONFIG_RAWBITS |
| static INLINE int aom_daala_read_bit(daala_reader *r) { |
| return od_ec_dec_bits(&r->ec, 1, "aom_bits"); |
| } |
| #endif |
| |
| static INLINE int aom_daala_reader_has_error(daala_reader *r) { |
| return r->ec.error; |
| } |
| |
| static INLINE int daala_read_symbol(daala_reader *r, const aom_cdf_prob *cdf, |
| int nsymbs) { |
| int symb; |
| assert(cdf != NULL); |
| symb = od_ec_decode_cdf_q15(&r->ec, cdf, nsymbs); |
| |
| #if CONFIG_BITSTREAM_DEBUG |
| { |
| int i; |
| int cdf_error = 0; |
| int ref_symb, ref_nsymbs; |
| aom_cdf_prob ref_cdf[16]; |
| const int queue_r = bitstream_queue_get_read(); |
| const int frame_idx = bitstream_queue_get_frame_read(); |
| bitstream_queue_pop(&ref_symb, ref_cdf, &ref_nsymbs); |
| if (nsymbs != ref_nsymbs) { |
| fprintf(stderr, |
| "\n *** nsymbs error, frame_idx_r %d nsymbs %d ref_nsymbs %d " |
| "queue_r %d\n", |
| frame_idx, nsymbs, ref_nsymbs, queue_r); |
| cdf_error = 0; |
| assert(0); |
| } else { |
| for (i = 0; i < nsymbs; ++i) |
| if (cdf[i] != ref_cdf[i]) cdf_error = 1; |
| } |
| if (cdf_error) { |
| fprintf(stderr, "\n *** cdf error, frame_idx_r %d cdf {%d", frame_idx, |
| cdf[0]); |
| for (i = 1; i < nsymbs; ++i) fprintf(stderr, ", %d", cdf[i]); |
| fprintf(stderr, "} ref_cdf {%d", ref_cdf[0]); |
| for (i = 1; i < ref_nsymbs; ++i) fprintf(stderr, ", %d", ref_cdf[i]); |
| fprintf(stderr, "} queue_r %d\n", queue_r); |
| assert(0); |
| } |
| if (symb != ref_symb) { |
| fprintf( |
| stderr, |
| "\n *** symb error, frame_idx_r %d symb %d ref_symb %d queue_r %d\n", |
| frame_idx, symb, ref_symb, queue_r); |
| assert(0); |
| } |
| } |
| #endif |
| |
| return symb; |
| } |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif |