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annotate libgsmfr2/pp_internal.h @ 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 573afa985df6
children
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3cd5ad24b1d4 libgsmfrp: implement internal state
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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573afa985df6 libgsmfr2: split pp_state.h from pp_internal.h
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2 * This header file is internal to libgsmfr2; it contains declarations
573afa985df6 libgsmfr2: split pp_state.h from pp_internal.h
Mychaela Falconia <falcon@freecalypso.org>
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3 * of internal functions for the Rx DTX preprocessor component.
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3cd5ad24b1d4 libgsmfrp: implement internal state
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4 */
3cd5ad24b1d4 libgsmfrp: implement internal state
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286d5f097eb4 libgsmfrp: implement comfort noise generation
Mychaela Falconia <falcon@freecalypso.org>
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6 extern void gsmfr_preproc_gen_cn(struct gsmfr_preproc_state *state,
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
Mychaela Falconia <falcon@freecalypso.org>
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7 uint8_t *frame);
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f081a6850fb5 libgsmfrp: new refined implementation
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8 extern void gsmfr_preproc_sid2cn(struct gsmfr_preproc_state *state,
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
Mychaela Falconia <falcon@freecalypso.org>
parents: 248
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9 uint8_t *frame);
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f081a6850fb5 libgsmfrp: new refined implementation
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10 extern void gsmfr_preproc_invalid_sid(struct gsmfr_preproc_state *state,
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
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11 uint8_t *frame);
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3b64f255689a libgsmfrp: factor out PRNG into its own module,
Mychaela Falconia <falcon@freecalypso.org>
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12 extern uint16_t gsmfr_preproc_prng(struct gsmfr_preproc_state *state,
3b64f255689a libgsmfrp: factor out PRNG into its own module,
Mychaela Falconia <falcon@freecalypso.org>
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13 uint16_t no_bits);
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a33edf624061 libgsmfr2: start with API definition and port of libgsmfrp code
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14 extern uint8_t gsmfr_preproc_xmaxc_mean(const uint8_t *frame);