UPS_FIR_SIZE 37 libavcodec/amrwbdata.h #define UPS_MEM_SIZE (2 * UPS_FIR_SIZE) UPS_FIR_SIZE 830 libavcodec/amrwbdec.c const float *in0 = in - UPS_FIR_SIZE + 1; UPS_FIR_SIZE 1237 libavcodec/amrwbdec.c upsample_5_4(sub_buf, &ctx->samples_up[UPS_FIR_SIZE],