alexc wrote: > Author: alexc > Date: Thu Jun 11 19:23:53 2009 > New Revision: 4435 > > Log: > Use scaled MDCT initializer (trunk r18855). > > Modified: > aacenc/aacenc.c > > Modified: aacenc/aacenc.c > ============================================================================== > --- aacenc/aacenc.c Thu Jun 11 18:53:44 2009 (r4434) > +++ aacenc/aacenc.c Thu Jun 11 19:23:53 2009 (r4435) > @@ -173,8 +173,8 @@ static av_cold int aac_encode_init(AVCod > s->samplerate_index = i; > > dsputil_init(&s->dsp, avctx); > - ff_mdct_init(&s->mdct1024, 11, 0); > - ff_mdct_init(&s->mdct128, 8, 0); > + ff_mdct_init(&s->mdct1024, 11, 0, 1.0); > + ff_mdct_init(&s->mdct128, 8, 0, 1.0); > // window init
Hi, at least when doing the inverse transform the sign is flipped compared to what most codecs usually use, for example the aac decoder is/was adding a - to a scalefactor somewhere. So I just wonder if you are sure that it should be 1.0 instead of -1.0? While it shouldn't matter to the actual encode it might produce strange results for synthetic metrics (psnr, rms, sse). MvH Benjamin Larsson _______________________________________________ FFmpeg-soc mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
