문서의 이전 판입니다!
- Feature support in particular profiles
| Feature | CBP | BP | XP | MP | ProHiP | HiP | Hi10P | Hi422P |
|---|---|---|---|---|---|---|---|---|
| Bit depth (per sample) | 8 | 8 | 8 | 8 | 8 | 8 | 8 to 10 | 8 to 10 |
| Chroma formats | 4:2:0 | 4:2:0 | 4:2:0 | 4:2:0 | 4:2:0 | 4:2:0 | 4:2:0 | 4:2:0/4:2:2 |
| Flexible macroblock ordering (FMO) | No | Yes | Yes | No | No | No | No | No |
| Arbitrary slice ordering (ASO) | No | Yes | Yes | No | No | No | No | No |
| Redundant slices (RS) | No | Yes | Yes | No | No | No | No | No |
| Data Partitioning | No | No | Yes | No | No | No | No | No |
| SI and SP slices | No | No | Yes | No | No | No | No | No |
| Interlaced coding (PicAFF, MBAFF) | No | No | Yes | Yes | No | Yes | Yes | Yes |
| B slices | No | No | Yes | Yes | Yes | Yes | Yes | Yes |
| CABAC entropy coding | No | No | No | Yes | Yes | Yes | Yes | Yes |
| 4:0:0 (Monochrome) | No | No | No | No | Yes | Yes | Yes | Yes |
| 8×8 vs. 4×4 transform adaptivity | No | No | No | No | Yes | Yes | Yes | Yes |
| Quantization scaling matrices | No | No | No | No | Yes | Yes | Yes | Yes |
| Separate Cb and Cr QP control | No | No | No | No | Yes | Yes | Yes | Yes |
| Separate color plane coding | No | No | No | No | No | No | No | No |
| Predictive lossless coding | No | No | No | No | No | No | No | No |
Levels
As the term is used in the standard, a ”level” is a specified set of constraints that indicate a degree of required decoder performance for a profile. For example, a level of support within a profile specifies the maximum picture resolution, frame rate, and bit rate that a decoder may use. A decoder that conforms to a given level must be able to decode all bitstreams encoded for that level and all lower levels.
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{| class=“wikitable” cellpadding=“1” cellspacing=“1” style=“text-align:right;”
!rowspan=“2”| Level<br> !colspan=“2”| Max decoding speed !colspan=“2”| Max frame size !colspan=“3”| Max video bit rate for video coding layer (VCL) kbit/s !rowspan=“2”| Examples for high resolution<br>@ highest frame rate<br>(max stored frames)
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<br>
! Luma samples/s ! Macroblocks/s ! Luma samples ! Macroblocks ! Baseline, Extended<br> and Main Profiles ! High Profile ! High 10 Profile
! 1
| 64 | 80 | ||
! 1b
| 128 | 160 | ||
! 1.1
| 192 | 240 | ||
! 1.2
| 384 | 480 | ||
! 1.3
| 768 | 960 | ||
! 2
| 2,000 | 2,500 | ||
! 2.1
| 4,000 | 5,000 | ||
! 2.2
| 4,000 | 5,000 | ||
! 3
| 10,000 | 12,500 | ||
! 3.1
| 14,000 | 17,500 | ||
! 3.2
| 20,000 | 25,000 | ||
! 4
| 20,000 | 25,000 | ||
! 4.1
| 50,000 | 62,500 | ||
! 4.2
| 50,000 | 62,500 | ||
! 5
| 135,000 | 168,750 | ||
! 5.1
| 240,000 | 300,000 | ||
! 5.2
| 240,000 | 300,000 | ||
The maximum bit rate for High Profile is 1.25 times that of the Base/Extended/Main Profiles, 3 times for Hi10P, and 4 times for Hi422P/Hi444PP.
The number of luma samples is 16×16=256 times the number of macroblocks (and the number of luma samples per second is 256 times the number of macroblocks per second).
