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annotate libgsmefr/dec_create.c @ 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 722959d9410f
children 23656d874524
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3cd5ad24b1d4 libgsmfrp: implement internal state
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1 /*
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2 * In this module we implement allocation and initialization
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722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
Mychaela Falconia <falcon@freecalypso.org>
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3 * of state structures for our GSM EFR decoder.
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4 */
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6 #include <stdlib.h>
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722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
Mychaela Falconia <falcon@freecalypso.org>
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7 #include "gsm_efr.h"
722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
Mychaela Falconia <falcon@freecalypso.org>
parents: 4
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8 #include "typedef.h"
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9 #include "cnst.h"
722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
Mychaela Falconia <falcon@freecalypso.org>
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10 #include "dec_state.h"
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722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
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12 struct EFR_decoder_state *EFR_decoder_create(void)
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13 {
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722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
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14 struct EFR_decoder_state *st;
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722959d9410f libgsmefr: implement EFR_{en,de}coder_create() functions
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16 st = malloc(sizeof(struct EFR_decoder_state));
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17 if (st)
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18 EFR_decoder_reset(st);
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19 return st;
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20 }