[FFmpeg-devel] [PATCH v3] avfilter/vf_delogo: make the interp value compute method simple

[Steven Liu]

> 在 2019年10月8日，15:44，Paul B Mahol <onemda at gmail.com> 写道：
> 
> probably ok
pushed
> 
> On 10/8/19, Steven Liu <lq at chinaffmpeg.org> wrote:
>> because the interp >= 0UL comparison of an unsigned value is always true
>> fix CID: 1454642
>> 
>> Signed-off-by: Steven Liu <lq at chinaffmpeg.org>
>> ---
>> libavfilter/vf_delogo.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/libavfilter/vf_delogo.c b/libavfilter/vf_delogo.c
>> index 376c5e850f..a268b3e9b3 100644
>> --- a/libavfilter/vf_delogo.c
>> +++ b/libavfilter/vf_delogo.c
>> @@ -168,7 +168,7 @@ static void apply_delogo(uint8_t *dst, int dst_linesize,
>>                  botleft[x-logo_x1-1]  +
>>                  botleft[x-logo_x1+1]) * weightb;
>>             weight = (weightl + weightr + weightt + weightb) * 3U;
>> -            interp = ROUNDED_DIV(interp, weight);
>> +            interp = (interp + (weight >> 1)) / weight;
>> 
>>             if (y >= logo_y+band && y < logo_y+logo_h-band &&
>>                 x >= logo_x+band && x < logo_x+logo_w-band) {
>> --
>> 2.15.1
>> 
>> 
>> 
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Thanks
Steven