FreeCalypso > hg > gsm-codec-lib
view libgsmefr/vad.h @ 477:4c9222d95647
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 | 756605c4850f |
children |
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/*************************************************************************** * * File Name: vad.h * * Purpose: Contains the prototypes for all functions of voice activity * detection. Also contains the type definition for the pseudo * floating point data type. * **************************************************************************/ void vad_reset (struct EFR_encoder_state *st); Word16 vad_computation ( struct EFR_encoder_state *st, Word16 r_h[], Word16 r_l[], Word16 scal_acf, Word16 rc[], Word16 ptch ); void periodicity_update ( struct EFR_encoder_state *st, Word16 lags[] );