Kostya Shishkov <[email protected]> writes:

> On Mon, Mar 26, 2012 at 12:03:12PM +0100, Måns Rullgård wrote:
>> Diego Biurrun <[email protected]> writes:
>> 
>> > ---
>> >  configure            |   24 ++++++++++++++----------
>> >  libavcodec/Makefile  |    3 ++-
>> >  libavcodec/dsputil.c |    6 ++++--
>> >  3 files changed, 20 insertions(+), 13 deletions(-)
>> >
>> > diff --git a/configure b/configure
>> > index 57b5afb..aa8efb3 100755
>> > --- a/configure
>> > +++ b/configure
>> > @@ -115,7 +115,8 @@ Component options:
>> >    --enable-x11grab         enable X11 grabbing [no]
>> >    --disable-network        disable network support [no]
>> >    --disable-dct            disable DCT code
>> > -  --disable-fft            disable FFT code
>> > +  --disable-faandct        disable floating point AAN DCT code
>> > +  --disable-jpegdct        disable JPEG DCT code
>> >    --disable-mdct           disable MDCT code
>> >    --disable-rdft           disable RDFT code
>> >    --disable-fft            disable FFT code
>> 
>> Please don't mix these options with the FFT ones.  They have nothing to
>> do with one another.
>> 
>> > @@ -935,6 +936,7 @@ CONFIG_LIST="
>> >      doc
>> >      dwt
>> >      dxva2
>> > +    faandct
>> >      fastdiv
>> >      fft
>> >      frei0r
>> > @@ -942,6 +944,7 @@ CONFIG_LIST="
>> >      gpl
>> >      gray
>> >      hardcoded_tables
>> > +    jpegdct
>> >      libcdio
>> >      libdc1394
>> >      libdirac
>> > @@ -1289,7 +1292,7 @@ cavs_decoder_select="golomb"
>> >  cook_decoder_select="mdct sinewin"
>> >  cscd_decoder_suggest="zlib"
>> >  dca_decoder_select="mdct"
>> > -dnxhd_encoder_select="aandct"
>> > +dnxhd_encoder_select="aandct faandct jpegdct"
>> >  dxa_decoder_select="zlib"
>> >  eac3_decoder_select="ac3_decoder"
>> >  eac3_encoder_select="mdct ac3dsp"
>> 
>> Nothing strictly requires faandct, so this _select and others like it
>> are wrong.  Most of the jpegdct dependencies also look dubious.
>
> That's the default _forward_ DCT, it seems.

Yes, but it is _required_ by only a few things.

-- 
Måns Rullgård
[email protected]
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