view libgsmefr/memops.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 d285877fc4cc
children
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/*
 * The original code from ETSI uses its own Copy() and Set_zero()
 * functions, operating on Word16 elements.  Here we implement them
 * as static inline functions wrapping around memcpy and memset.
 */

#include <string.h>

static inline void Copy (
    const Word16 x[],  /* (i)  : input vector                               */
    Word16 y[],        /* (o)  : output vector                              */
    Word16 L           /* (i)  : vector length                              */
)
{
	memcpy(y, x, L * 2);
}

static inline void Set_zero (
    Word16 x[],        /* (o)  : vector to clear                            */
    Word16 L           /* (i)  : length of vector                           */
)
{
	memset(x, 0, L * 2);
}