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      2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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     11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
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     13 products derived from this software without specific prior written
     14 permission.
     15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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     23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25 POSSIBILITY OF SUCH DAMAGE.
     26 ***********************************************************************/
     27 
     28 #ifdef HAVE_CONFIG_H
     29 #include "config.h"
     30 #endif
     31 
     32 #include "main.h"
     33 
     34 /* Entropy code the mid/side quantization indices */
     35 void silk_stereo_encode_pred(
     36     ec_enc                      *psRangeEnc,                    /* I/O  Compressor data structure                   */
     37     opus_int8                   ix[ 2 ][ 3 ]                    /* I    Quantization indices                        */
     38 )
     39 {
     40     opus_int   n;
     41 
     42     /* Entropy coding */
     43     n = 5 * ix[ 0 ][ 2 ] + ix[ 1 ][ 2 ];
     44     silk_assert( n < 25 );
     45     ec_enc_icdf( psRangeEnc, n, silk_stereo_pred_joint_iCDF, 8 );
     46     for( n = 0; n < 2; n++ ) {
     47         silk_assert( ix[ n ][ 0 ] < 3 );
     48         silk_assert( ix[ n ][ 1 ] < STEREO_QUANT_SUB_STEPS );
     49         ec_enc_icdf( psRangeEnc, ix[ n ][ 0 ], silk_uniform3_iCDF, 8 );
     50         ec_enc_icdf( psRangeEnc, ix[ n ][ 1 ], silk_uniform5_iCDF, 8 );
     51     }
     52 }
     53 
     54 /* Entropy code the mid-only flag */
     55 void silk_stereo_encode_mid_only(
     56     ec_enc                      *psRangeEnc,                    /* I/O  Compressor data structure                   */
     57     opus_int8                   mid_only_flag
     58 )
     59 {
     60     /* Encode flag that only mid channel is coded */
     61     ec_enc_icdf( psRangeEnc, mid_only_flag, silk_stereo_only_code_mid_iCDF, 8 );
     62 }
     63