ff_snow_frame_start  239 libavcodec/snow.h int ff_snow_frame_start(SnowContext *s);
ff_snow_frame_start  465 libavcodec/snowdec.c     if((res = ff_snow_frame_start(s)) < 0)
ff_snow_frame_start 1623 libavcodec/snowenc.c     ff_snow_frame_start(s);