Author: cmcq Date: Fri Jul 31 03:45:05 2009 New Revision: 4851 Log: Clip the final output samples because the postfilter can create overflows Modified: amr/amrnbdec.c Modified: amr/amrnbdec.c ============================================================================== --- amr/amrnbdec.c Fri Jul 31 03:41:40 2009 (r4850) +++ amr/amrnbdec.c Fri Jul 31 03:45:05 2009 (r4851) @@ -1179,8 +1179,10 @@ static int amrnb_decode_frame(AVCodecCon for (i = 0; i < AMR_BLOCK_SIZE; i++) // Post-processing up-scales by 2. It's convenient to - // scale from PCM values to [-1,1] here too. - buf_out[i] *= 2.0 * AMR_SAMPLE_SCALE; + // scale from PCM values to [-1,1) here too. + // FIXME: merge with qcelpdec.c + buf_out[i] = av_clipf(buf_out[i] * 2.0 * AMR_SAMPLE_SCALE, + -1.0, 32767.0/32768.0); /* Update averaged lsf vector (used for fixed gain smoothing). *