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aacenc: mark SBR absent

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Use backwards compatible explicit signalling to denote the absence of
SBR.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
This commit is contained in:
Alex Converse 2011-01-22 05:23:43 +00:00 committed by Janne Grunau
parent 10ed96c78f
commit 8ae0fa243e
1 changed files with 7 additions and 2 deletions
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9
libavcodec/aacenc.c
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@ -149,6 +149,11 @@ static void put_audio_specific_config(AVCodecContext *avctx)
put_bits(&pb, 1, 0); //frame length - 1024 samples
put_bits(&pb, 1, 0); //does not depend on core coder
put_bits(&pb, 1, 0); //is not extension
//Explicitly Mark SBR absent
put_bits(&pb, 11, 0x27b); //sync extension
put_bits(&pb, 5, AOT_SBR);
put_bits(&pb, 1, 0);
flush_put_bits(&pb);
}
@ -193,8 +198,8 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
s->samples = av_malloc(2 * 1024 * avctx->channels * sizeof(s->samples[0]));
s->cpe = av_mallocz(sizeof(ChannelElement) * aac_chan_configs[avctx->channels-1][0]);
avctx->extradata = av_mallocz(2 + FF_INPUT_BUFFER_PADDING_SIZE);
avctx->extradata_size = 2;
avctx->extradata = av_mallocz(5 + FF_INPUT_BUFFER_PADDING_SIZE);
avctx->extradata_size = 5;
put_audio_specific_config(avctx);
sizes[0] = swb_size_1024[i];