FLV_HEADER_FLAG_HASVIDEO  607 libavformat/flvdec.c     if (flags & FLV_HEADER_FLAG_HASVIDEO)
FLV_HEADER_FLAG_HASVIDEO  425 libavformat/flvenc.c                 FLV_HEADER_FLAG_HASVIDEO * !!flv->video_enc);
FLV_HEADER_FLAG_HASVIDEO 2864 libavformat/rtmpproto.c             rt->flv_data[4] |= FLV_HEADER_FLAG_HASVIDEO;