diff options
| -rw-r--r-- | libavcodec/wmalosslessdec.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 45740a090b..c8c941c31a 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -678,7 +678,7 @@ static void mclms_predict(WmallDecodeCtx *s, int icoef, int *pred) for (i = 0; i < ich; i++) pred[ich] += (uint32_t)s->channel_residues[i][icoef] * s->mclms_coeffs_cur[i + num_channels * ich]; - pred[ich] += 1 << s->mclms_scaling - 1; + pred[ich] += (1 << s->mclms_scaling) >> 1; pred[ich] >>= s->mclms_scaling; s->channel_residues[ich][icoef] += pred[ich]; } @@ -811,19 +811,19 @@ static void revert_acfilter(WmallDecodeCtx *s, int tile_size) pred = 0; for (j = 0; j < order; j++) { if (i <= j) - pred += filter_coeffs[j] * prevvalues[j - i]; + pred += (uint32_t)filter_coeffs[j] * prevvalues[j - i]; else - pred += s->channel_residues[ich][i - j - 1] * filter_coeffs[j]; + pred += (uint32_t)s->channel_residues[ich][i - j - 1] * filter_coeffs[j]; } pred >>= scaling; - s->channel_residues[ich][i] += pred; + s->channel_residues[ich][i] += (unsigned)pred; } for (i = order; i < tile_size; i++) { pred = 0; for (j = 0; j < order; j++) pred += (uint32_t)s->channel_residues[ich][i - j - 1] * filter_coeffs[j]; pred >>= scaling; - s->channel_residues[ich][i] += pred; + s->channel_residues[ich][i] += (unsigned)pred; } for (j = 0; j < order; j++) prevvalues[j] = s->channel_residues[ich][tile_size - j - 1]; |