FreeCalypso > hg > gsm-codec-lib
view libgsmefr/dec_state.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 | eefef9f6d533 |
| children |
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/* * In this header file we define our decoder state structure. * This decoder state structure is internal to libgsmefr, * NOT part of our external public interface! */ struct EFR_decoder_state { /* from agc.c */ Word16 past_gain; /* from decoder.c */ Word16 synth_buf[L_FRAME + M]; Word16 reset_flag_old; /* from dec_12k2.c */ Word16 old_exc[L_FRAME + PIT_MAX + L_INTERPOL]; Word16 lsp_old[M]; Word16 mem_syn[M]; Word16 prev_bf; Word16 bf_state; /* from d_plsf_5.c */ Word16 past_r2_q[M]; Word16 past_lsf_q[M]; Word16 lsf_p_CN[M]; Word16 lsf_old_CN[M]; Word16 lsf_new_CN[M]; /* from d_gains.c */ Word16 pbuf[5]; Word16 past_gain_pit; Word16 prev_gp; Word16 gbuf[5]; Word16 past_gain_code; Word16 prev_gc; Word16 gcode0_CN; Word16 gain_code_old_CN; Word16 gain_code_new_CN; Word16 gain_code_muting_CN; Word16 past_qua_en[4]; Word16 pred[4]; /* from dtx.c */ Word16 rxdtx_ctrl; Word32 L_pn_seed_rx; Word16 rx_dtx_state; Word16 rxdtx_aver_period; Word16 rxdtx_N_elapsed; Word16 prev_SID_frames_lost; Word16 buf_p_rx; Word16 lsf_old_rx[DTX_HANGOVER][M]; Word16 gain_code_old_rx[4 * DTX_HANGOVER]; /* from dec_lag6.c */ Word16 old_T0; /* from preemph.c */ Word16 mem_pre; /* from pstfilt2.c */ Word16 res2[L_SUBFR]; Word16 mem_syn_pst[M]; /* our own addition */ Word32 L_pn_seed_nodata; };