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aacenc_tns: fix triggering an assertion with assert-level=2

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It also made no sense to actually make the filter span the entire
window including the first band of the next window.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit is contained in:
Rostislav Pehlivanov 2015-08-29 19:01:59 +01:00
parent 47b41feb72
commit 0818705bf3
1 changed files with 2 additions and 2 deletions
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4
libavcodec/aacenc_tns.c
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@ -173,7 +173,7 @@ void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce)
const int is8 = sce->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE;
const int tns_max_order = is8 ? 7 : s->profile == FF_PROFILE_AAC_LOW ? 12 : TNS_MAX_ORDER;
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
for (w = 0; w < sce->ics.num_windows; w++) {
int order = 0, filters = 1;
int sfb_start = 0, sfb_len = 0;
int coef_start = 0, coef_len = 0;
@ -197,7 +197,7 @@ void ff_aac_search_for_tns(AACEncContext *s, SingleChannelElement *sce)
threshold += band->threshold;
}
if (!sfb_len) {
sfb_len = (w+sce->ics.group_len[w])*16+g - sfb_start;
sfb_len = (w+1)*16+g - sfb_start - 1;
coef_len = sce->ics.swb_offset[sfb_start + sfb_len] - coef_start;
}
}