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avcodec/dsddec: correct for DSD silence bit-ordering
Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -31,10 +31,18 @@
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#include "avcodec.h"
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#include "dsd.h"
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#define DSD_SILENCE 0x69
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/* 0x69 = 01101001
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* This pattern "on repeat" makes a low energy 352.8 kHz tone
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* and a high energy 1.0584 MHz tone which should be filtered
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* out completely by any playback system --> silence
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*/
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static av_cold int decode_init(AVCodecContext *avctx)
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{
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DSDContext * s;
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int i;
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uint8_t silence;
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ff_init_dsd_data();
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@ -42,15 +50,10 @@ static av_cold int decode_init(AVCodecContext *avctx)
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if (!s)
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return AVERROR(ENOMEM);
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silence = avctx->codec_id == AV_CODEC_ID_DSD_LSBF || avctx->codec_id == AV_CODEC_ID_DSD_LSBF_PLANAR ? ff_reverse[DSD_SILENCE] : DSD_SILENCE;
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for (i = 0; i < avctx->channels; i++) {
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s[i].pos = 0;
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memset(s[i].buf, 0x69, sizeof(s[i].buf));
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/* 0x69 = 01101001
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* This pattern "on repeat" makes a low energy 352.8 kHz tone
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* and a high energy 1.0584 MHz tone which should be filtered
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* out completely by any playback system --> silence
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*/
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memset(s[i].buf, silence, sizeof(s[i].buf));
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}
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avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
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