ref: bd1fb513c136c76f46f7e42a68ea20ddc41a94b2
dir: /silk/stereo_encode_pred.c/
/***********************************************************************
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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***********************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "main.h"
/* Entropy code the mid/side quantization indices */
void silk_stereo_encode_pred(
ec_enc *psRangeEnc, /* I/O Compressor data structure */
opus_int8 ix[ 2 ][ 3 ] /* I Quantization indices */
)
{
opus_int n;
/* Entropy coding */
n = 5 * ix[ 0 ][ 2 ] + ix[ 1 ][ 2 ];
silk_assert( n < 25 );
ec_enc_icdf( psRangeEnc, n, silk_stereo_pred_joint_iCDF, 8 );
for( n = 0; n < 2; n++ ) {
silk_assert( ix[ n ][ 0 ] < 3 );
silk_assert( ix[ n ][ 1 ] < STEREO_QUANT_SUB_STEPS );
ec_enc_icdf( psRangeEnc, ix[ n ][ 0 ], silk_uniform3_iCDF, 8 );
ec_enc_icdf( psRangeEnc, ix[ n ][ 1 ], silk_uniform5_iCDF, 8 );
}
}
/* Entropy code the mid-only flag */
void silk_stereo_encode_mid_only(
ec_enc *psRangeEnc, /* I/O Compressor data structure */
opus_int8 mid_only_flag
)
{
/* Encode flag that only mid channel is coded */
ec_enc_icdf( psRangeEnc, mid_only_flag, silk_stereo_only_code_mid_iCDF, 8 );
}