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annotate libgsmfr2/pp_homing.c @ 556:18aca50d68df default tip

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doc/Calypso-TCH-downlink: update for FR1 BFI-with-data
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 01:54:00 +0000
parents c95e89367321
children
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c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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2 * gsmfr_preproc_good_frame_hm() is a wrapper around gsmfr_preproc_good_frame()
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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3 * that adds homing of the Rx DTX handler preprocessor block. This homing
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
Mychaela Falconia <falcon@freecalypso.org>
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4 * version of good frame preproc is not used in the full decoder (the latter
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
Mychaela Falconia <falcon@freecalypso.org>
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5 * implements its own homing logic as specified by 3GPP), but it will be used
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
Mychaela Falconia <falcon@freecalypso.org>
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6 * when our Rx DTX handler preprocessor functions as a TFO transform.
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
Mychaela Falconia <falcon@freecalypso.org>
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7 */
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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8
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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9 #include <stdint.h>
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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10 #include <string.h>
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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11 #include "tw_gsmfr.h"
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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12
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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13 void gsmfr_preproc_good_frame_hm(struct gsmfr_preproc_state *st, uint8_t *frame)
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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14 {
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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15 if (memcmp(frame, gsmfr_decoder_homing_frame, GSMFR_RTP_FRAME_LEN))
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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16 gsmfr_preproc_good_frame(st, frame);
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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17 else
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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18 gsmfr_preproc_reset(st);
c95e89367321 libgsmfr2: add gsmfr_preproc_good_frame_hm()
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19 }