Re: [FFmpeg-devel] [PATCH v4 1/2] checkasm: add test for fdct

[Ramiro Polla <ramiro.polla@gmail.com>]

On Mon, May 6, 2024 at 7:46 PM Rémi Denis-Courmont <remi@remlab.net> wrote:
> Le maanantaina 6. toukokuuta 2024, 20.18.39 EEST Ramiro Polla a écrit :
> > Reviewed-by: Martin Storsjö <martin@martin.st>
> > Reviewed-by: Rémi Denis-Courmont <remi@remlab.net>
> > ---
> >  tests/checkasm/Makefile   |  1 +
> >  tests/checkasm/checkasm.c |  3 ++
> >  tests/checkasm/checkasm.h |  1 +
> >  tests/checkasm/fdctdsp.c  | 71 +++++++++++++++++++++++++++++++++++++++
> >  tests/fate/checkasm.mak   |  1 +
> >  5 files changed, 77 insertions(+)
> >  create mode 100644 tests/checkasm/fdctdsp.c
> >
> > diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile
> > index 3e40aba2c3..b5bb885201 100644
> > --- a/tests/checkasm/Makefile
> > +++ b/tests/checkasm/Makefile
> > @@ -4,6 +4,7 @@ AVCODECOBJS-$(CONFIG_AC3DSP)            += ac3dsp.o
> >  AVCODECOBJS-$(CONFIG_AUDIODSP)          += audiodsp.o
> >  AVCODECOBJS-$(CONFIG_BLOCKDSP)          += blockdsp.o
> >  AVCODECOBJS-$(CONFIG_BSWAPDSP)          += bswapdsp.o
> > +AVCODECOBJS-$(CONFIG_FDCTDSP)           += fdctdsp.o
> >  AVCODECOBJS-$(CONFIG_FMTCONVERT)        += fmtconvert.o
> >  AVCODECOBJS-$(CONFIG_G722DSP)           += g722dsp.o
> >  AVCODECOBJS-$(CONFIG_H264CHROMA)        += h264chroma.o
> > diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
> > index 9be32fc16e..e5d39e2116 100644
> > --- a/tests/checkasm/checkasm.c
> > +++ b/tests/checkasm/checkasm.c
> > @@ -106,6 +106,9 @@ static const struct {
> >      #if CONFIG_EXR_DECODER
> >          { "exrdsp", checkasm_check_exrdsp },
> >      #endif
> > +    #if CONFIG_FDCTDSP
> > +        { "fdctdsp", checkasm_check_fdctdsp },
> > +    #endif
> >      #if CONFIG_FLAC_DECODER
> >          { "flacdsp", checkasm_check_flacdsp },
> >      #endif
> > diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
> > index 173360af60..8807a37a43 100644
> > --- a/tests/checkasm/checkasm.h
> > +++ b/tests/checkasm/checkasm.h
> > @@ -85,6 +85,7 @@ void checkasm_check_blockdsp(void);
> >  void checkasm_check_bswapdsp(void);
> >  void checkasm_check_colorspace(void);
> >  void checkasm_check_exrdsp(void);
> > +void checkasm_check_fdctdsp(void);
> >  void checkasm_check_fixed_dsp(void);
> >  void checkasm_check_flacdsp(void);
> >  void checkasm_check_float_dsp(void);
> > diff --git a/tests/checkasm/fdctdsp.c b/tests/checkasm/fdctdsp.c
> > new file mode 100644
> > index 0000000000..c640a00656
> > --- /dev/null
> > +++ b/tests/checkasm/fdctdsp.c
> > @@ -0,0 +1,71 @@
> > +/*
> > + * This file is part of FFmpeg.
> > + *
> > + * FFmpeg is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * FFmpeg is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details.
> > + *
> > + * You should have received a copy of the GNU General Public License along
> > + * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
> > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> > + */
> > +
> > +#include <string.h>
> > +
> > +#include "checkasm.h"
> > +
> > +#include "libavcodec/avcodec.h"
> > +#include "libavcodec/fdctdsp.h"
> > +
> > +#include "libavutil/common.h"
> > +#include "libavutil/internal.h"
> > +#include "libavutil/mem_internal.h"
> > +
> > +static int int16_cmp_off_by_n(const int16_t *ref, const int16_t *test,
> > size_t n, int accuracy) +{
> > +    for (size_t i = 0; i < n; i++) {
> > +        if (abs(ref[i] - test[i]) > accuracy)
> > +            return 1;
> > +    }
> > +    return 0;
> > +}
> > +
> > +static void check_fdct(void)
> > +{
> > +    LOCAL_ALIGNED_16(int16_t, block0, [64]);
> > +    LOCAL_ALIGNED_16(int16_t, block1, [64]);
> > +
> > +    AVCodecContext avctx = {
> > +        .bits_per_raw_sample = 8,
> > +        .dct_algo = FF_DCT_AUTO,
> > +    };
> > +    FDCTDSPContext h;
> > +
> > +    ff_fdctdsp_init(&h, &avctx);
> > +
> > +    if (check_func(h.fdct, "fdct")) {
> > +        declare_func(void, int16_t *);
> > +        for (int i = 0; i < 64; i++) {
> > +            uint8_t r = rnd();
> > +            block0[i] = r;
> > +            block1[i] = r;
> > +        }
> > +        call_ref(block0);
> > +        call_new(block1);
> > +        if (int16_cmp_off_by_n(block0, block1, 64, 2))
> > +            fail();
> > +        bench_new(block1);
> > +    }
> > +}
> > +
> > +void checkasm_check_fdctdsp(void)
> > +{
> > +    check_fdct();
> > +    report("fdctdsp");
> > +}
> > diff --git a/tests/fate/checkasm.mak b/tests/fate/checkasm.mak
> > index 4a8e312da9..9b5e2b0d98 100644
> > --- a/tests/fate/checkasm.mak
> > +++ b/tests/fate/checkasm.mak
> > @@ -8,6 +8,7 @@ FATE_CHECKASM = fate-checkasm-aacencdsp
> >            \ fate-checkasm-blockdsp                                  \
> > fate-checkasm-bswapdsp                                  \
> > fate-checkasm-exrdsp                                    \ +
> > fate-checkasm-fdctdsp                                   \
> > fate-checkasm-fixed_dsp                                 \
> > fate-checkasm-flacdsp                                   \
> > fate-checkasm-float_dsp                                 \
>
> No objections from me, but it would be nice and seemingly trivial to add 9 and
> 10 bits while at it.

Thanks. Pushed.

I'll add checks for the 9 and 10 bits later.
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