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| author | Paul B Mahol <onemda@gmail.com> | 2018-11-15 19:09:20 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2018-11-15 19:09:20 +0100 |
| commit | 662120f2b27dd02dc3e512ad436c28b47b093432 (patch) | |
| tree | fa836ce19dcceda812359d1f5a10593d0fd936ce | |
| parent | 1342ec526e320beb9d90aa2e0ca1d5dddd21fafb (diff) | |
| download | ffmpeg-662120f2b27dd02dc3e512ad436c28b47b093432.tar.gz | |
avfilter/vf_convolution: use sqrtf as its faster
| -rw-r--r-- | libavfilter/vf_convolution.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/libavfilter/vf_convolution.c b/libavfilter/vf_convolution.c index 421c169fd7..1305569c88 100644 --- a/libavfilter/vf_convolution.c +++ b/libavfilter/vf_convolution.c @@ -157,7 +157,7 @@ static void filter16_prewitt(uint8_t *dstp, int width, int sumb = AV_RN16A(&c[0][2 * x]) * -1 + AV_RN16A(&c[2][2 * x]) * 1 + AV_RN16A(&c[3][2 * x]) * -1 + AV_RN16A(&c[5][2 * x]) * 1 + AV_RN16A(&c[6][2 * x]) * -1 + AV_RN16A(&c[8][2 * x]) * 1; - dst[x] = av_clip(sqrt(suma*suma + sumb*sumb) * scale + delta, 0, peak); + dst[x] = av_clip(sqrtf(suma*suma + sumb*sumb) * scale + delta, 0, peak); } } @@ -173,7 +173,7 @@ static void filter16_roberts(uint8_t *dstp, int width, int suma = AV_RN16A(&c[0][2 * x]) * 1 + AV_RN16A(&c[1][2 * x]) * -1; int sumb = AV_RN16A(&c[4][2 * x]) * 1 + AV_RN16A(&c[3][2 * x]) * -1; - dst[x] = av_clip(sqrt(suma*suma + sumb*sumb) * scale + delta, 0, peak); + dst[x] = av_clip(sqrtf(suma*suma + sumb*sumb) * scale + delta, 0, peak); } } @@ -191,7 +191,7 @@ static void filter16_sobel(uint8_t *dstp, int width, int sumb = AV_RN16A(&c[0][2 * x]) * -1 + AV_RN16A(&c[2][2 * x]) * 1 + AV_RN16A(&c[3][2 * x]) * -2 + AV_RN16A(&c[5][2 * x]) * 2 + AV_RN16A(&c[6][2 * x]) * -1 + AV_RN16A(&c[8][2 * x]) * 1; - dst[x] = av_clip(sqrt(suma*suma + sumb*sumb) * scale + delta, 0, peak); + dst[x] = av_clip(sqrtf(suma*suma + sumb*sumb) * scale + delta, 0, peak); } } @@ -211,7 +211,7 @@ static void filter_prewitt(uint8_t *dst, int width, int sumb = c0[x] * -1 + c2[x] * 1 + c3[x] * -1 + c5[x] * 1 + c6[x] * -1 + c8[x] * 1; - dst[x] = av_clip_uint8(sqrt(suma*suma + sumb*sumb) * scale + delta); + dst[x] = av_clip_uint8(sqrtf(suma*suma + sumb*sumb) * scale + delta); } } @@ -226,7 +226,7 @@ static void filter_roberts(uint8_t *dst, int width, int suma = c[0][x] * 1 + c[1][x] * -1; int sumb = c[4][x] * 1 + c[3][x] * -1; - dst[x] = av_clip_uint8(sqrt(suma*suma + sumb*sumb) * scale + delta); + dst[x] = av_clip_uint8(sqrtf(suma*suma + sumb*sumb) * scale + delta); } } @@ -246,7 +246,7 @@ static void filter_sobel(uint8_t *dst, int width, int sumb = c0[x] * -1 + c2[x] * 1 + c3[x] * -2 + c5[x] * 2 + c6[x] * -1 + c8[x] * 1; - dst[x] = av_clip_uint8(sqrt(suma*suma + sumb*sumb) * scale + delta); + dst[x] = av_clip_uint8(sqrtf(suma*suma + sumb*sumb) * scale + delta); } } |