>
>> +
>> av_opt_set_int(*s, "src_h_chr_pos", scale->in_h_chr_pos, 0);
>> av_opt_set_int(*s, "src_v_chr_pos", scale->in_v_chr_pos, 0);
>> av_opt_set_int(*s, "dst_h_chr_pos", scale->out_h_chr_pos, 0);
>> @@ -520,8 +527,8 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
>> INT_MAX);
>>
>> if(scale->interlaced>0 || (scale->interlaced<0 &&
>> in->interlaced_frame)){
>> - scale_slice(link, out, in, scale->isws[0], 0, (link->h+1)/2, 2, 0);
>> - scale_slice(link, out, in, scale->isws[1], 0, link->h /2, 2, 1);
>> + scale_slice(link, out, in, scale->isws[!in->top_field_first], 0,
>> (link->h+1)/2, 2, 0);
>> + scale_slice(link, out, in, scale->isws[in->top_field_first], 0,
>> link->h /2, 2, 1);
>> }else{
>
> are you sure this is correct ?
> maybe i misunderstand but it looks a bit odd
> i think the upper field(s) should be treated the same no matter if
> its temporally first or second
If the lower field is the first line, then the lower field has a
different chroma position.
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