diff options
Diffstat (limited to 'encoder/ixheaace_loudness_measurement.h')
| -rw-r--r-- | encoder/ixheaace_loudness_measurement.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/encoder/ixheaace_loudness_measurement.h b/encoder/ixheaace_loudness_measurement.h new file mode 100644 index 0000000..3856d99 --- /dev/null +++ b/encoder/ixheaace_loudness_measurement.h @@ -0,0 +1,98 @@ +/****************************************************************************** + * * + * Copyright (C) 2024 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ***************************************************************************** + * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore + */ + +#pragma once + +#define IXHEAACE_LOUDNESS_NUM_TAPS (3) +#define IXHEAACE_LOUDNESS_PRE_FLT (0) +#define IXHEAACE_LOUDNESS_RLB_FLT (1) +#define IXHEAACE_LOUDNESS_DONT_PASS (-1) +#define IXHEAACE_ABS_GATE (-70) +#define IXHEAACE_MOMENTARY_LOUDNESS_OVERLAP (3) +#define IXHEAACE_SL_OVERLAP (20) +#define BYTE_ALIGN_8 (8) +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#define IXHEAACE_DEFAULT_SHORT_TERM_LOUDENSS (-1000) +#define IXHEAACE_DEFAULT_MOMENTARY_LOUDENSS (-1000) +#define IXHEAACE_SEC_TO_100MS_FACTOR (60 * 10) + +typedef struct { + BOOL passes_abs_gate; + FLOAT64 short_term_loudness; + FLOAT64 int_val; +} short_term_frame_t; + +typedef struct { + BOOL passes_abs_gate; + FLOAT64 momentary_loudness; + FLOAT64 int_val; +} momentary_frame_t; +typedef struct { + UWORD32 num_samples_per_ch; + UWORD32 n_channels; + UWORD32 length; + UWORD32 sample_rate; + UWORD32 pcm_sz; + FLOAT64 sum_square; + FLOAT64 prev_four_sum_square[4]; + FLOAT64 w[2][2][4]; + UWORD32 count_fn_call_mmstl; + UWORD32 mom_loudness_first_time_flag; + FLOAT64 average_loudness_val; + FLOAT64 prev_thirty_sum_square[30]; + WORD32 sl_first_time_flag; + WORD32 local_sl_count; + UWORD32 short_term_loudness_overlap; + short_term_frame_t stf_instances[100]; + UWORD32 no_of_stf; + UWORD32 curr_stf_no; + UWORD32 loop_curr_stf_no; + UWORD32 no_of_stf_passing_abs_gate; + FLOAT64 tot_int_val_stf_passing_abs_gate; + FLOAT64 temp_stf_instances_loudness[100]; + BOOL get_LRA; + UWORD32 max_lra_count; + UWORD32 no_of_mf; + + UWORD32 no_of_mf_passing_abs_gate; + FLOAT64 tot_int_val_mf_passing_abs_gate; + UWORD32 no_of_mf_passing_rel_gate; + FLOAT64 tot_int_val_mf_passing_rel_gate; + FLOAT64 rel_gate; + UWORD32 ml_count_fn_call; + UWORD32 loop_ml_count_fn_call; + momentary_frame_t mf_instances[1000]; + WORD32 get_intergrated_loudness; + UWORD32 max_il_buf_size; + FLOAT64 max_sample_val; + WORD32 sample_rate_idx; +} ixheaace_loudness_struct; + +IA_ERRORCODE ixheaace_loudness_init_params(pVOID loudness_handle, + ixheaace_input_config *pstr_input_config, + ixheaace_output_config *pstr_output_config); + +FLOAT64 ixheaace_measure_loudness(pVOID loudness_handle, WORD16 **samples); + +FLOAT64 ixheaace_measure_integrated_loudness(pVOID loudness_handle); + +WORD32 ixheaace_loudness_info_get_handle_size(); + +FLOAT32 ixheaace_measure_sample_peak_value(pVOID loudness_handle);
\ No newline at end of file |