(EN) A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided or chopped into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. By this measure, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these elements. On the other hand, however, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier, i.e. with lower delay, than the un-chopped original entities, i.e. slices, WPP substreams or tiles.; In accordance with another aspect, which is combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream in order to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles so as to be able to, in parallel, serve a multithreaded decoder with the corresponding substreams or tiles.
(ZH) 一种以截割片、WPP子流或拼贴块描述一图像且使用上下文自适应二进制算术编码来编码的原始字节序列有效载荷经细分或切碎成份额，利用继续的该上下文自适应二进制算术编码概率适应性横跨份额边界。藉此措施，额外地导入截割片、WPP子流或拼贴块内部的份额边界不会导致此等元素的熵编码效率的减低。但相反地，份额小于原先截割片、WPP子流或拼贴块，且因此，份额可比未经切碎的原先实体亦即截割片、WPP子流或拼贴块更早传输，亦即具有更低的延迟。依据另一方面，该方面与第一方面可组合，子流标记NAL单元用在一视频比特流的一序列NAL单元内部以使得一传送解多工器分派在NAL单元内部的截割片数据给相对应的子流或拼贴块，因而能够并列地用作为具有相对应的子流或拼贴块的一多线程解码器。
