FreeCalypso > hg > gsm-codec-lib
annotate libgsmefr/bfi_nodata.c @ 139:be57e06bed84
factor out common part of gsmfr-cvt-dlcap, in prep for EFR
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 13 Dec 2022 07:03:55 +0000 |
parents | 7152cc7d1ca3 |
children | eefef9f6d533 |
rev | line source |
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7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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1 /* |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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2 * In the expected usage mode of our libgsmefr decoder as part of "soft TRAU" |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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3 * uplink implementation, there will be times when the radio subsystem tells |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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4 * us that a frame has been lost, but we don't have any errored bits to feed |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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5 * to the decoder as ETSI canon calls for. We could of course call |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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6 * EFR_decode_frame() with a dummy frame of all zeros and BFI=1, but the |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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7 * EFR_decode_bfi_nodata() function provided in this module accomplishes |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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8 * the same effect more efficiently. |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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9 */ |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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10 |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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11 #include <string.h> |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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12 #include "gsm_efr.h" |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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13 |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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14 void EFR_decode_bfi_nodata(struct EFR_decoder_state *st, int taf, |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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15 int16_t *pcm_out) |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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16 { |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
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17 int16_t params[EFR_NUM_PARAMS]; |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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18 |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
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19 memset(params, 0, sizeof(int16_t) * EFR_NUM_PARAMS); |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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20 EFR_decode_params(st, params, 1, 0, taf, pcm_out); |
7152cc7d1ca3
libgsmefr: implement EFR_decode_bfi_nodata()
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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21 } |