Author: kmalaussene Date: Tue Jan 27 06:34:33 2009 New Revision: 4012 Log: Fix decoding of pitch lag frac to match reference implementation. Some of its value were widely out of bound. Modified: amr/amrnbfloatdec.c Modified: amr/amrnbfloatdec.c ============================================================================== --- amr/amrnbfloatdec.c Mon Jan 26 22:44:11 2009 (r4011) +++ amr/amrnbfloatdec.c Tue Jan 27 06:34:33 2009 (r4012) @@ -501,8 +501,9 @@ static void decode_pitch_lag_3(AMRContex p->pitch_lag_frac = 0; }else if(pitch_index < 12) { // 1/3 fractional precision for [t1_temp-1 2/3, t1_temp+2/3] - p->pitch_lag_int = ( ((pitch_index - 5)*10923)>>15 ) + t1_temp - 1; + p->pitch_lag_int = ( ((pitch_index - 5)*10923)>>15 ) - 1; p->pitch_lag_frac = pitch_index - p->pitch_lag_int*3 - 9; + p->pitch_lag_int += t1_temp; }else { // integer only precision for [t1_temp+1, t1_temp+4] p->pitch_lag_int = pitch_index + t1_temp - 11;