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annotate libtwamr/vad_reset.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 028ed5114e52
children
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028ed5114e52 libtwamr: implement run-time VAD selection scheme
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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2 * The vad_reset() function implemented in this module is new with libtwamr,
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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3 * i.e., it does not originate from 3GPP, even though it is styled after
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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4 * 3GPP AMR code. This function initializes our unified vadState structure,
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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5 * which is a union of vadState1 and vadState2, plus a selection flag.
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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6 */
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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7
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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8 #include "typedef.h"
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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9 #include "namespace.h"
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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10 #include "vad.h"
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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11
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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12 void vad_reset(vadState *st, Flag use_vad2)
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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13 {
028ed5114e52 libtwamr: implement run-time VAD selection scheme
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14 st->use_vad2 = use_vad2;
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15 if (st->use_vad2)
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16 vad2_reset(&st->u.v2);
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17 else
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18 vad1_reset(&st->u.v1);
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19 }