AVRational dar = av_mul_q( sample_aspect_ratio, ( AVRational ){ job->width, job->height } );
int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
AVRational dar = av_mul_q( sample_aspect_ratio, ( AVRational ){ job->width, job->height } );
int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);