2010-01-21 15:51:40|??分類： windows mobile開 |字號?訂閱

Description: Set bitstream Profile IDC. Default is 88.

Note: Some profiles cannot support certain features. See MPEG-4 AVC for supported features for each profile. Reference software may perform tests for certain features for profile conformance, but it is possible that certain validations are missing. See Annex A of H.264/AVC.

Options:
66	Baseline
77	Main
88	Extended
100	High (FRExt)
110	High 10 (FRExt)
122	High 4:2:2 (FRExt)
144	High 4:4:4 (FRExt)

Class: Numeric (Integer)

Description: Set bitstream Level IDC. Default is 51.

Note: Similar with the ProfileIDC, LevelIDC sets certain restrictions during the encoding process, such as resolution supported, maximum number of references, frame rate etc. See Annex A of H.264/AVC.

Options:
10	1? ?? ? (supports only QCIF format and below with 380160 samples/sec)
11	1.1? ? (CIF and below. 768000 samples/sec)
12	1.2? ? (CIF and below. 1536000 samples/sec)
13	1.3? ? (CIF and below. 3041280 samples/sec)
20	2? ?? ? (CIF and below. 3041280 samples/sec)
21	2.1? ? (Supports HHR formats. Enables Interlace support. 5068800 samples/sec)
22	2.2? ? (Supports SD/4CIF formats. Enables Interlace support. 5184000 samples/sec)
30	3? ?? ? (Supports SD/4CIF formats. Enables Interlace support. 10368000 samples/sec)
31	3.1? ? (Supports 720p HD format. Enables Interlace support. 27648000 samples/sec)
32	3.2? ? (Supports SXGA format. Enables Interlace support. 55296000 samples/sec)
40	4? ?? ? (Supports 2Kx1K format. Enables Interlace support. 62914560 samples/sec)
41	4.1? ? (Supports 2Kx1K format. Enables Interlace support. 62914560 samples/sec)
42	4.2? ? (Supports 2Kx1K format. Frame coding only. 125829120 samples/sec)
50	5? ?? ? (Supports 3672x1536 format. Frame coding only. 150994944 samples/sec)
51	5.1? ? (Supports 4096x2304 format. Frame coding only. 251658240 samples/sec)

總結(jié)

以上是生活随笔為你收集整理的关于level_idc和Profile_IDC的解释的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。