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annotate libtwamr/log2.tab @ 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 bfe74a9edd5a
children
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1 /*
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2 ********************************************************************************
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3 *
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4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
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5 * R99 Version 3.3.0
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6 * REL-4 Version 4.1.0
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7 *
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8 ********************************************************************************
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9 *
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10 * File : log2.tab
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11 * Purpose : Table for routine Log2().
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12 * $Id $
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13 *
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14 ********************************************************************************
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15 */
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16 static const Word16 table[33] =
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17 {
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18 0, 1455, 2866, 4236, 5568, 6863, 8124, 9352, 10549, 11716,
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19 12855, 13967, 15054, 16117, 17156, 18172, 19167, 20142, 21097, 22033,
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20 22951, 23852, 24735, 25603, 26455, 27291, 28113, 28922, 29716, 30497,
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21 31266, 32023, 32767
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22 };