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).
*
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