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annotate libhr/tw_gsmhr.h @ 40:e1eabf554a75

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libhr: small subset of WIP libgsmhr1
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Aug 2024 16:41:56 +0000
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e1eabf554a75 libhr: small subset of WIP libgsmhr1
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This header file is a reduced subset version of <tw_gsmhr.h>
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Mychaela Falconia <falcon@freecalypso.org>
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3 * from work-in-progress libgsmhr1, reduced to just the few functions
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4 * needed for itt-ater-8.
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5 */
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6
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7 #pragma once
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8
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9 #include <stdint.h>
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10
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11 #define GSMHR_NUM_PARAMS 18 /* actual codec parameters */
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12 #define GSMHR_NUM_PARAMS_ENC 20 /* output from the encoder */
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13 #define GSMHR_NUM_PARAMS_DEC 22 /* input to the decoder */
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14
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15 #define GSMHR_FRAME_LEN_RPF 14 /* raw packed format */
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16 #define GSMHR_FRAME_LEN_5993 15 /* RFC 5993 and TW-TS-002 */
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17
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18 /* the few functions we've imported from WIP libgsmhr1 */
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19
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20 void gsmhr_pack_ts101318(const int16_t *param, uint8_t *payload);
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21 int gsmhr_check_common_params(const int16_t *params);
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22 int gsmhr_check_decoder_params(const int16_t *params);