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annotate libtwamr/q_plsf5_tab.h @ 477:4c9222d95647

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libtwamr encoder: always emit frame->mode = mode; In the original implementation of amr_encode_frame(), the 'mode' member of the output struct was set to 0xFF if the output frame type is TX_NO_DATA. This design was made to mimic the mode field (16-bit word) being set to 0xFFFF (or -1) in 3GPP test sequence format - but nothing actually depends on this struct member being set in any way, and amr_frame_to_tseq() generates the needed 0xFFFF on its own, based on frame->type being equal to TX_NO_DATA. It is simpler and more efficient to always set frame->mode to the actual encoding mode in amr_encode_frame(), and this new behavior has already been documented in doc/AMR-library-API description in anticipation of the present change.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 18 May 2024 22:30:42 +0000
parents 450b090f2fd7
children
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cc08498ed21b libgsmefr: factor out q_plsf_5 tables into their own C module
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1 /*
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2 * The original ETSI EFR code features an include file named q_plsf_5.tab,
cc08498ed21b libgsmefr: factor out q_plsf_5 tables into their own C module
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3 * included into d_homing.c, d_plsf_5.c and q_plsf_5.c, duplicating
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4 * the small mean_lsf[] table across all 3 modules and the other (big)
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5 * tables across d_plsf_5.c for the decoder and q_plsf_5.c for the encoder.
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6 *
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7 * In our version we have moved the tables into q_plsf5_tab.c,
cc08498ed21b libgsmefr: factor out q_plsf_5 tables into their own C module
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8 * with extern declarations in q_plsf5_tab.h.
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9 *
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10 * Update for libtwamr: this table is unchanged from ETSI EFR, hence
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11 * we are keeping our version unchanged from libgsmefr too.
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12 */
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14 #ifndef q_plsf5_tab_h
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15 #define q_plsf5_tab_h
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17 #include "typedef.h"
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18
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19 extern const Word16 mean_lsf[10];
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20
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21 #define DICO1_SIZE 128
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22 #define DICO2_SIZE 256
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23 #define DICO3_SIZE 256
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24 #define DICO4_SIZE 256
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25 #define DICO5_SIZE 64
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27 extern const Word16 dico1_lsf[DICO1_SIZE * 4];
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28 extern const Word16 dico2_lsf[DICO2_SIZE * 4];
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29 extern const Word16 dico3_lsf[DICO3_SIZE * 4];
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30 extern const Word16 dico4_lsf[DICO4_SIZE * 4];
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31 extern const Word16 dico5_lsf[DICO5_SIZE * 4];
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33 #endif