[FFmpeg-devel] [PATCH] FATE: fix colorbalance fate test failed on x86_32

Paul B Mahol onemda at gmail.com
Thu Jul 2 11:44:22 EEST 2020


lgtm

On 7/2/20, lance.lmwang at gmail.com <lance.lmwang at gmail.com> wrote:
> From: Limin Wang <lance.lmwang at gmail.com>
>
> floating point precision will cause rgb*max generate different value on
> x86_32 and x86_64. have pass fate test on x86_32 and x86_64 by using
> lrintf to get the nearest integral value for rgb * max before av_clip.
>
> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavfilter/vf_colorbalance.c               | 24 ++++++++++-----------
>  tests/ref/fate/filter-colorbalance          |  6 +++---
>  tests/ref/fate/filter-colorbalance-gbrap    |  6 +++---
>  tests/ref/fate/filter-colorbalance-gbrap-16 |  6 +++---
>  tests/ref/fate/filter-colorbalance-rgba64   |  6 +++---
>  5 files changed, 24 insertions(+), 24 deletions(-)
>
> diff --git a/libavfilter/vf_colorbalance.c b/libavfilter/vf_colorbalance.c
> index cc90dc08c7..6dc1b28483 100644
> --- a/libavfilter/vf_colorbalance.c
> +++ b/libavfilter/vf_colorbalance.c
> @@ -188,9 +188,9 @@ static int color_balance8_p(AVFilterContext *ctx, void
> *arg, int jobnr, int nb_j
>              if (s->preserve_lightness)
>                  preservel(&r, &g, &b, l);
>
> -            dstr[j] = av_clip_uint8(r * max);
> -            dstg[j] = av_clip_uint8(g * max);
> -            dstb[j] = av_clip_uint8(b * max);
> +            dstr[j] = av_clip_uint8(lrintf(r * max));
> +            dstg[j] = av_clip_uint8(lrintf(g * max));
> +            dstb[j] = av_clip_uint8(lrintf(b * max));
>              if (in != out && out->linesize[3])
>                  dsta[j] = srca[j];
>          }
> @@ -242,9 +242,9 @@ static int color_balance16_p(AVFilterContext *ctx, void
> *arg, int jobnr, int nb_
>              if (s->preserve_lightness)
>                  preservel(&r, &g, &b, l);
>
> -            dstr[j] = av_clip_uintp2_c(r * max, depth);
> -            dstg[j] = av_clip_uintp2_c(g * max, depth);
> -            dstb[j] = av_clip_uintp2_c(b * max, depth);
> +            dstr[j] = av_clip_uintp2_c(lrintf(r * max), depth);
> +            dstg[j] = av_clip_uintp2_c(lrintf(g * max), depth);
> +            dstb[j] = av_clip_uintp2_c(lrintf(b * max), depth);
>              if (in != out && out->linesize[3])
>                  dsta[j] = srca[j];
>          }
> @@ -299,9 +299,9 @@ static int color_balance8(AVFilterContext *ctx, void
> *arg, int jobnr, int nb_job
>              if (s->preserve_lightness)
>                  preservel(&r, &g, &b, l);
>
> -            dst[j + roffset] = av_clip_uint8(r * max);
> -            dst[j + goffset] = av_clip_uint8(g * max);
> -            dst[j + boffset] = av_clip_uint8(b * max);
> +            dst[j + roffset] = av_clip_uint8(lrintf(r * max));
> +            dst[j + goffset] = av_clip_uint8(lrintf(g * max));
> +            dst[j + boffset] = av_clip_uint8(lrintf(b * max));
>              if (in != out && step == 4)
>                  dst[j + aoffset] = src[j + aoffset];
>          }
> @@ -351,9 +351,9 @@ static int color_balance16(AVFilterContext *ctx, void
> *arg, int jobnr, int nb_jo
>              if (s->preserve_lightness)
>                  preservel(&r, &g, &b, l);
>
> -            dst[j + roffset] = av_clip_uintp2_c(r * max, depth);
> -            dst[j + goffset] = av_clip_uintp2_c(g * max, depth);
> -            dst[j + boffset] = av_clip_uintp2_c(b * max, depth);
> +            dst[j + roffset] = av_clip_uintp2_c(lrintf(r * max), depth);
> +            dst[j + goffset] = av_clip_uintp2_c(lrintf(g * max), depth);
> +            dst[j + boffset] = av_clip_uintp2_c(lrintf(b * max), depth);
>              if (in != out && step == 4)
>                  dst[j + aoffset] = src[j + aoffset];
>          }
> diff --git a/tests/ref/fate/filter-colorbalance
> b/tests/ref/fate/filter-colorbalance
> index f267da572e..15491fe671 100644
> --- a/tests/ref/fate/filter-colorbalance
> +++ b/tests/ref/fate/filter-colorbalance
> @@ -3,6 +3,6 @@
>  #codec_id 0: rawvideo
>  #dimensions 0: 352x288
>  #sar 0: 0/1
> -0,          0,          0,        1,   304128, 0xd50c9fea
> -0,          1,          1,        1,   304128, 0xdf9e1f79
> -0,          2,          2,        1,   304128, 0x9b84087e
> +0,          0,          0,        1,   304128, 0xf68fadfd
> +0,          1,          1,        1,   304128, 0xa6302d9a
> +0,          2,          2,        1,   304128, 0x758d165a
> diff --git a/tests/ref/fate/filter-colorbalance-gbrap
> b/tests/ref/fate/filter-colorbalance-gbrap
> index a85dc388b0..2d76c7d08d 100644
> --- a/tests/ref/fate/filter-colorbalance-gbrap
> +++ b/tests/ref/fate/filter-colorbalance-gbrap
> @@ -3,6 +3,6 @@
>  #codec_id 0: rawvideo
>  #dimensions 0: 352x288
>  #sar 0: 0/1
> -0,          0,          0,        1,   405504, 0xd33217e5
> -0,          1,          1,        1,   405504, 0x08f161af
> -0,          2,          2,        1,   405504, 0x27508654
> +0,          0,          0,        1,   405504, 0xdcc71df0
> +0,          1,          1,        1,   405504, 0x48d56675
> +0,          2,          2,        1,   405504, 0x68058bf0
> diff --git a/tests/ref/fate/filter-colorbalance-gbrap-16
> b/tests/ref/fate/filter-colorbalance-gbrap-16
> index d18fe5a466..2ab96ad70f 100644
> --- a/tests/ref/fate/filter-colorbalance-gbrap-16
> +++ b/tests/ref/fate/filter-colorbalance-gbrap-16
> @@ -3,6 +3,6 @@
>  #codec_id 0: rawvideo
>  #dimensions 0: 352x288
>  #sar 0: 0/1
> -0,          0,          0,        1,   405504, 0x2e44c4b0
> -0,          1,          1,        1,   405504, 0xf47244e0
> -0,          2,          2,        1,   405504, 0x040769dd
> +0,          0,          0,        1,   405504, 0xa497ca1b
> +0,          1,          1,        1,   405504, 0x92c24b0e
> +0,          2,          2,        1,   405504, 0x965270bd
> diff --git a/tests/ref/fate/filter-colorbalance-rgba64
> b/tests/ref/fate/filter-colorbalance-rgba64
> index 254669ff88..605860dee5 100644
> --- a/tests/ref/fate/filter-colorbalance-rgba64
> +++ b/tests/ref/fate/filter-colorbalance-rgba64
> @@ -3,6 +3,6 @@
>  #codec_id 0: rawvideo
>  #dimensions 0: 352x288
>  #sar 0: 0/1
> -0,          0,          0,        1,   811008, 0x42e5db8b
> -0,          1,          1,        1,   811008, 0x31be5974
> -0,          2,          2,        1,   811008, 0xdef21287
> +0,          0,          0,        1,   811008, 0xc5f7e6ba
> +0,          1,          1,        1,   811008, 0x266955bf
> +0,          2,          2,        1,   811008, 0x55360c6e
> --
> 2.21.0
>
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