ff_xvmc_field_start 1658 libavcodec/mpeg12.c if(ff_xvmc_field_start(s,avctx) < 0) ff_xvmc_field_start 954 libavcodec/mpegvideo.c return ff_xvmc_field_start(s, avctx); ff_xvmc_field_start 29 libavcodec/xvmc_internal.h int ff_xvmc_field_start(MpegEncContext*s, AVCodecContext *avctx);