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Add OPUS_{GET|SET}_GAIN CTLs for adjusting output gain.

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This CTL was requested by Nicolas George for FFmpeg.
This commit is contained in:
Gregory Maxwell 2012-07-11 00:04:24 -04:00
parent c329045758
commit 28b41ae5ae
7 changed files with 193 additions and 11 deletions
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22
src/opus_multistream.c
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@ -845,7 +845,27 @@ int opus_multistream_decoder_ctl(OpusMSDecoder *st, int request, ...)
}
*value = (OpusDecoder*)ptr;
}
break;
break;
case OPUS_SET_GAIN_REQUEST:
{
int s;
/* This works for int32 params */
opus_int32 value = va_arg(ap, opus_int32);
for (s=0;s<st->layout.nb_streams;s++)
{
OpusDecoder *dec;
dec = (OpusDecoder*)ptr;
if (s < st->layout.nb_coupled_streams)
ptr += align(coupled_size);
else
ptr += align(mono_size);
ret = opus_decoder_ctl(dec, request, value);
if (ret != OPUS_OK)
break;
}
}
break;
default:
ret = OPUS_UNIMPLEMENTED;
break;