From 3d8449512840215ab48d1b2e337bbd0841635300 Mon Sep 17 00:00:00 2001 From: Mashiat Sarker Shakkhar Date: Sun, 1 Jan 2012 14:32:10 +0600 Subject: [PATCH] Use quantizer value read from bitstream Currently the code initializes quantizer even before reading it from bitstream and uses that to dequantize samples. --- libavcodec/wmalosslessdec.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index da8bb59c8b..ce845f1e55 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -1067,7 +1067,6 @@ static int decode_subframe(WmallDecodeCtx *s) int total_samples = s->samples_per_frame * s->num_channels; int rawpcm_tile; int padding_zeroes; - int quant_stepsize = s->quant_stepsize; s->subframe_offset = get_bits_count(&s->gb); @@ -1194,9 +1193,10 @@ static int decode_subframe(WmallDecodeCtx *s) revert_acfilter(s, subframe_len); /* Dequantize */ - for (i = 0; i < s->num_channels; i++) - for (j = 0; j < subframe_len; j++) - s->channel_residues[i][j] *= quant_stepsize; + if (s->quant_stepsize != 1) + for (i = 0; i < s->num_channels; i++) + for (j = 0; j < subframe_len; j++) + s->channel_residues[i][j] *= s->quant_stepsize; /** handled one subframe */