20 480 32 768 1104 400 184 320 184 320 Format Luma Width Luma Height MBs Total SQCIF 525 SIF 525 HHR 625 HHR 1 200 525 4SIF 1 320 525 SD 1 350 1 584 625 SD 1 620 3 072 720p HD 525 16SIF 5 280 16CIF 6 336 4SVGA 7 500 1080 HD 8 160 2Kx1K 8 192 2Kx1080 12 288 16VGA 19 200 3616x1536 (2.35:1) 21 696 3672x1536 (2.39:1) 22 080 3840x2160 31 035 4Kx2K 32 768 4096x2160 34 560 4096x2304 (16:9) 36 864 Rec. ITU-T H.264 (01/2012) The following should be noted: As used in Table A-7, "525" refers to typical use for environments using 525 analogue scan lines (of which approximately 480 lines contain the visible picture region), and "625" refers to environments using 625 analogue scan lines (of which approximately 576 lines contain the visible picture region). XGA is also known as (aka) XVGA, 4SVGA aka UXGA, 16XGA aka 4Kx3K, CIF aka 625 SIF, 625 HHR aka 2CIF aka half 625 D-1, aka half 625 ITU-R BT.601, 525 SD aka 525 D-1 aka 525 ITU-R BT.601, 625 SD aka 625 D-1 aka 625 ITU-R BT.601. Rec. ITU-T H.264 (01/2012) Annex B Byte stream format (This annex forms an integral part of this Recommendation | International Standard.) This annex specifies syntax and semantics of a byte stream format specified for use by applications that deliver some or all of the NAL unit stream as an ordered stream of bytes or bits within which the locations of NAL unit boundaries need to be identifiable from patterns in the data, such as Rec. ITU-T H.222.0 | ISO/IEC 13818-1 systems or Rec. ITU-T H.320 systems. For bit-oriented delivery, the bit order for the byte stream format is specified to start with the MSB of the first byte, proceed to the LSB of the first byte, followed by the MSB of the second byte, etc. The byte stream format consists of a sequence of byte stream NAL unit syntax structures. Each byte stream NAL unit syntax structure contains one start code prefix followed by onenal_unit(NumBytesInNALunit) syntax structure. It may (and under some circumstances, it shall) also contain an additional zero_byte syntax element. It may also contain one or mor