profile at the specified level. NOTE - The constraints for MinLumaBiPredSize and direct 8x8 inference_flag are not relevant to the Constrained High, High 10 Intra, High 4:2:2 Intra, High 4:4:4 Intra, and CAVLC 4:4:4 Intra profiles, as these profiles do not support B slices. Rec. ITU-T H.264 (01/2012) Table A-4 - Main, High, Progressive High, Constrained High, High 10, High 4:2:2, High 4:4:4 Predictive, High 10 Intra, High 4:2:2 Intra, High 4:4:4 Intra, and CAVLC 4:4:4 Intra profile level limits Level number SliceRate MinLumaBiPredSize direct 8x8 inference_flag frame_mbs_only_flag A.3.3.3 Level limits of the Extended profile Table A-5 specifies limits for each level that are specific to bitstreams conforming to the Extended profile. Each entry in Table A-5 indicates, for the level corresponding to the row of the table, the absence or value of a limit that is imposed by the variable corresponding to the column of the table, as follows: If the table entry is marked as "-", no limit is imposed by the value of the variable as a requirement of bitstream conformance to the profile at the specified level. Otherwise, the table entry specifies the value of the variable for the associated limit that is imposed as a requirement of bitstream conformance to the profile at the specified level. Rec. ITU-T H.264 (01/2012) Table A-5 - Extended profile level limits Level number MaxSubMbRectSize MinLumaBiPredSize frame_mbs_only_flag Rec. ITU-T H.264 (01/2012) A.3.4 Effect of level limits on frame rate (informative) This clause does not form an integral part of this Recommendation | International Standard. Table A-6 - Maximum frame rates (frames per second) for some example frame sizes Level: Max frame size (macroblocks): Max macroblocks/second: 1 485 1 485 3 000 6 000 11 880 11 880 19 800 Max frame size (samples): 25 344 25 344 101 376 101 1 376 101 376 101 376 202 752 Max samples/second: 380 160 380 160 768 000 1 536 000 3 3041280 041 280 5 068 800 Format Width Height Total Samples SQCIF 12 288 125.0 172.0 172.0 172.0 25 344 120.0 