MFX_LOOKAHEAD_DS_2x 258 libavcodec/qsvenc.c case MFX_LOOKAHEAD_DS_2x: av_log(avctx, AV_LOG_VERBOSE, "2x"); break; MFX_LOOKAHEAD_DS_2x 124 libavcodec/qsvenc_h264.c { "2x" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_2x }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" },