FreeCalypso > hg > gsm-codec-lib
view libtwamr/log2.tab @ 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 | bfe74a9edd5a |
| children |
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/* ******************************************************************************** * * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 * R99 Version 3.3.0 * REL-4 Version 4.1.0 * ******************************************************************************** * * File : log2.tab * Purpose : Table for routine Log2(). * $Id $ * ******************************************************************************** */ static const Word16 table[33] = { 0, 1455, 2866, 4236, 5568, 6863, 8124, 9352, 10549, 11716, 12855, 13967, 15054, 16117, 17156, 18172, 19167, 20142, 21097, 22033, 22951, 23852, 24735, 25603, 26455, 27291, 28113, 28922, 29716, 30497, 31266, 32023, 32767 };