FreeCalypso > hg > gsm-codec-lib
annotate libtwamr/dhf_subst.c @ 435:9f354d2aea13
efrtest: split etsi-dec.c for code reuse
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 08 May 2024 05:25:47 +0000 |
parents | f0496507d409 |
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9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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1 /* |
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f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
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2 * The function implemented in this module is an aid for AMR-EFR interworking: |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
changeset
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3 * it is meant to be invoked directly after amr_encode_frame(), it checks |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
changeset
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4 * the encoder output for MR122 DHF, and if the generated frame exactly |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
changeset
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5 * matches MR122 DHF, it is changed to GSM-EFR DHF. |
355
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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6 */ |
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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7 |
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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8 #include <stdint.h> |
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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9 #include <string.h> |
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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10 #include "tw_amr.h" |
9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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11 |
431
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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12 void amr_dhf_subst_efr(struct amr_param_frame *frame) |
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9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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13 { |
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f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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14 if (frame->type != TX_SPEECH_GOOD) |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
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15 return; |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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16 if (frame->mode != MR122) |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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17 return; |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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18 if (memcmp(frame->param, amr_dhf_mr122, AMR_MAX_PRM * sizeof(int16_t))) |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
changeset
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19 return; |
f0496507d409
libtwamr: implement amr_dhf_subst_efr()
Mychaela Falconia <falcon@freecalypso.org>
parents:
355
diff
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20 memcpy(frame->param, amr_dhf_gsmefr, AMR_MAX_PRM * sizeof(int16_t)); |
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9beb01439a90
libtwamr: implement DHF check function
Mychaela Falconia <falcon@freecalypso.org>
parents:
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21 } |