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avcodec/on2avc: Apply offset when initializing VLC

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-10-25 14:21:16 +01:00
parent 2935d29e8e
commit b0094be719
1 changed files with 2 additions and 2 deletions
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4
libavcodec/on2avc.c
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@ -169,7 +169,7 @@ static int on2avc_decode_band_scales(On2AVCContext *c, GetBitContext *gb)
scale = get_bits(gb, 7); scale = get_bits(gb, 7);
first = 0; first = 0;
} else { } else {
scale += get_vlc2(gb, c->scale_diff.table, 9, 3) - 60; scale += get_vlc2(gb, c->scale_diff.table, 9, 3);
} }
if (scale < 0 || scale > 127) { if (scale < 0 || scale > 127) {
av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\n", av_log(c->avctx, AV_LOG_ERROR, "Invalid scale value %d\n",
@ -960,7 +960,7 @@ static av_cold int on2avc_decode_init(AVCodecContext *avctx)
ret = ff_init_vlc_from_lengths(&c->scale_diff, 9, ON2AVC_SCALE_DIFFS, ret = ff_init_vlc_from_lengths(&c->scale_diff, 9, ON2AVC_SCALE_DIFFS,
ff_on2avc_scale_diff_bits, 1, ff_on2avc_scale_diff_bits, 1,
ff_on2avc_scale_diff_syms, 1, 1, 0, 0, avctx); ff_on2avc_scale_diff_syms, 1, 1, -60, 0, avctx);
if (ret < 0) if (ret < 0)
goto vlc_fail; goto vlc_fail;
for (i = 1; i < 16; i++) { for (i = 1; i < 16; i++) {