Helican-scan digital video cassette recording format using 12,65 mm magnetic tape and incorporating MPEG-4 compression - Type D-16 format
使用12,65毫米磁带并结合MPEG-4压缩 - D-16格式的Helican扫描数字录像带录像格式
发布日期:
2005-10-28
IEC 62141:2005规定了包含压缩视频、AES3音频数据和相关数据的数据块的轨道内容、格式和记录方法,这些数据块在盒式磁带中的12.65mm磁带上形成螺旋记录。本标准支持以23,98 Hz、24 Hz、25 Hz和29,97 Hz的帧速率使用SMPTE 274M中规定的4:4:4和4:2:2采样结构的1920 x 1080像素记录源图片格式,并以50 Hz和59,94 Hz的帧速率使用SMPTE 296M中规定的4:2:2采样结构的1280 x 720像素(见注释)。该标准还支持记录12个通道的AES3音频数据和3行未压缩的消隐间隔数据。本标准包括使用ISO/IEC 14496-2(MPEG-4 simple studio profile)定义的DCT和DPCM编码方法支持图片压缩的打包和洗牌操作。
该双语版本(2012-11)对应于2005-10年出版的单语英语版本。
IEC 62141:2005 specifies the track content, format, and recording method of the data blocks containing compressed video, AES3 audio data, and associated data which form the helical records on 12,65 mm tape in cassettes. This standard supports recording of source picture formats using 1920 x 1080 pixels with the 4:4:4 and 4:2:2 sampling structure specified in SMPTE 274M at the frame rate of 23,98 Hz, 24 Hz, 25 Hz and 29,97 Hz, and using 1280 x 720 pixels with the 4:2:2 sampling structure specified in SMPTE 296M at the frame rates of 50 Hz and 59,94 Hz (see note). This standard also supports recording of 12 channels of AES3 audio data and 3 lines of uncompressed blanking interval data. This standard includes packetizing and shuffling operations supporting picture compression using the DCT and DPCM encoding methods defined by ISO/IEC 14496-2 (MPEG-4 simple studio profile). This bilingual version (2012-11) corresponds to the monolingual English version, published in 2005-10.