--- libavcodec/libfaac.c.orig 2015-03-12 00:05:24 UTC +++ libavcodec/libfaac.c @@ -84,7 +84,9 @@ static av_cold int Faac_encode_init(AVCo } faac_cfg->mpegVersion = MPEG4; faac_cfg->useTns = 0; - faac_cfg->allowMidside = 1; + //Do not set allowMidside for API compatibility with faac, + //see https://github.com/knik0/faac/issues/8 for details + //faac_cfg->allowMidside = 1; faac_cfg->bitRate = avctx->bit_rate / avctx->channels; faac_cfg->bandWidth = avctx->cutoff; if(avctx->flags & CODEC_FLAG_QSCALE) {