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aacenc: reset marked IS and M/S bands upon frame encoding

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This commit resets any bands marked as M/S or IS upon encoding a frame.
This is needed because the arrays may contain some residual information
upon allocation on startup and because there isn't any mechanism to
reset the arrays once the frame has been encoded.

Reviewed-by: Claudio Freire <klaussfreire@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Rostislav Pehlivanov
2015-07-02 19:13:03 +01:00
committed by Michael Niedermayer
parent 57848ef3c6
commit 9f4f578704
1 changed files with 2 additions and 0 deletions
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2
libavcodec/aacenc.c
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@@ -617,6 +617,8 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
tag = s->chan_map[i+1]; tag = s->chan_map[i+1];
chans = tag == TYPE_CPE ? 2 : 1; chans = tag == TYPE_CPE ? 2 : 1;
cpe = &s->cpe[i]; cpe = &s->cpe[i];
memset(cpe->is_mask, 0, sizeof(cpe->is_mask));
memset(cpe->ms_mask, 0, sizeof(cpe->ms_mask));
put_bits(&s->pb, 3, tag); put_bits(&s->pb, 3, tag);
put_bits(&s->pb, 4, chan_el_counter[tag]++); put_bits(&s->pb, 4, chan_el_counter[tag]++);
for (ch = 0; ch < chans; ch++) for (ch = 0; ch < chans; ch++)