ff_g723_1_get_residual   97 libavcodec/g723_1.c     ff_g723_1_get_residual(residual, prev_excitation, lag);
ff_g723_1_get_residual  185 libavcodec/g723_1.h void ff_g723_1_get_residual(int16_t *residual, int16_t *prev_excitation,
ff_g723_1_get_residual  668 libavcodec/g723_1enc.c         ff_g723_1_get_residual(residual, p->prev_excitation, pitch_lag + i - 1);