diff options
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/vf_boxblur.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libavfilter/vf_boxblur.c b/libavfilter/vf_boxblur.c index 1fa5135d98..a908b6d125 100644 --- a/libavfilter/vf_boxblur.c +++ b/libavfilter/vf_boxblur.c @@ -227,19 +227,21 @@ static inline void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_ sum += src[x*src_step]<<1; sum += src[radius*src_step]; + sum = sum*inv + (1<<15); + for (x = 0; x <= radius; x++) { - sum += src[(radius+x)*src_step] - src[(radius-x)*src_step]; - dst[x*dst_step] = (sum*inv + (1<<15))>>16; + sum += (src[(radius+x)*src_step] - src[(radius-x)*src_step])*inv; + dst[x*dst_step] = sum>>16; } for (; x < len-radius; x++) { - sum += src[(radius+x)*src_step] - src[(x-radius-1)*src_step]; - dst[x*dst_step] = (sum*inv + (1<<15))>>16; + sum += (src[(radius+x)*src_step] - src[(x-radius-1)*src_step])*inv; + dst[x*dst_step] = sum >>16; } for (; x < len; x++) { - sum += src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step]; - dst[x*dst_step] = (sum*inv + (1<<15))>>16; + sum += (src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step])*inv; + dst[x*dst_step] = sum>>16; } } |