3GP files usually use H.263 (MPEG-4 Part 2) encoded video, but in many cases use H.264 (MPEG-4 Part 10/AVC).
3GP ໄຟປົກກະຕິແລ້ວການນໍາໃຊ້ H.263 (MPEG-4 Part 2) ວິດີໂອເຂົ້າລະຫັດ, ແຕ່ວ່າໃນຫຼາຍກໍລະນີນໍາໃຊ້ H264 (MPEG-4 Part 10 / AVC).