binkaudio: perform band table scaling in decode_init

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 582ac86d19)
This commit is contained in:
Peter Ross 2011-02-20 12:24:25 +11:00 committed by Michael Niedermayer
parent 777b365c8b
commit 23d82139d2

View File

@ -114,10 +114,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR(ENOMEM);
/* populate bands data */
s->bands[0] = 1;
s->bands[0] = 2;
for (i = 1; i < s->num_bands; i++)
s->bands[i] = ff_wma_critical_freqs[i - 1] * (s->frame_len / 2) / sample_rate_half;
s->bands[s->num_bands] = s->frame_len / 2;
s->bands[i] = (ff_wma_critical_freqs[i - 1] * s->frame_len / sample_rate_half) & ~1;
s->bands[s->num_bands] = s->frame_len;
s->first = 1;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
@ -194,11 +194,11 @@ static void decode_block(BinkAudioContext *s, short *out, int use_dct)
if (width == 0) {
memset(coeffs + i, 0, (j - i) * sizeof(*coeffs));
i = j;
while (s->bands[k] * 2 < i)
while (s->bands[k] < i)
q = quant[k++];
} else {
while (i < j) {
if (s->bands[k] * 2 == i)
if (s->bands[k] == i)
q = quant[k++];
coeff = get_bits(gb, width);
if (coeff) {