On 30/12/2019 19:20, James Almer wrote: > + ff_side_data_set_encoder_stats(pkt, x265pic_out.frameData.qp * FF_QP2LAMBDA, NULL, 0, pict_type); Does multiplying by FF_QP2LAMBDA even make sense here? That contsant is for H.263's QP scale, not HEVC's. - Derek