view libtwamr/memops.h @ 605:63f774192906

gsmhr_decoder_twts002_in(): set BFI=1 SID=1 for invalid SID When a received TW-TS-002 RTP payload indicates invalid SID, which of the 3 possible BFI/SID combinations should we pass to our internal ETSI-based speech decoder or TFO engine? Our original code passed BFI=0 SID=1, but upon further reflection, BFI=1 SID=1 is a better choice. In the corner case where received invalid SID is fed to a full decoder in homed state, setting BFI=1 allows that decoder to emit zeros on PCM and stay homed, instead of launching into full decoding.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 21:01:46 +0000
parents 8dfb7cbe6b59
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);
}