FFmpeg 1 and 2 Pass Encoding. 2 pass encoding, one of the multi-pass encoding, is a technique for encoding video into another format using two passes to keep the best quality.wo-pass encoding will not make such mistakes. Using statistics of the 1st pass the encoder can estimate the value of each frame in bits. It results in a better distribution of bits between two parts of the video clip. The first dynamic part will get more bits while the second part will get less bits.
The definition of a phylum is a major category of living organisms, or a group of genetically related language families. 1  An example of a phylum is Mollusca which means an invertebrate animal such as an octopus.
The Major phylums in the animal kingdom are as follows. INVERTEBRATES Phylum: Porifera Phylum: Coelenterata/ Cnidaria Phylum: Platyhelminthes Phylum: Nematehelminthes/â¦ Aschelminthese Phylum: Annelida Phylum: Arthropoda Phylum: Mollusca Phylum: Echinodermata. The phylum protozoa is now not treated as animal phylum and it is included under a separate kingdom called PROTISTA.