![]() ![]() The packet header information for the PES package still exists in the TS package. Ts-transport Stream (Transport Stream) consists of a fixed-length TS Package (188 bytes), and the TS package is a single-head package for the PES package (where ES is also packaged in a two-layer package). A PS package can contain up to 16 video PES packages and 32 audio PES packages with the same 1: benchmark. The packet header of the PS package contains synchronization information and clock recovery information. Ps-program Stream (Program stream) PS flow is composed of PS package, and a PS package is made up of several PES packages (here, ES through the two-layer package). Each i (keyframe), P (guess frame), B (two-way guessing frame) frames have a pts and DTS, but PTS and DTS are not the same for B frames, no need to mark B-Frame DTS, for I-frames and P-frames, the display must be stored in the video's first-order buffer, After the delay (sort from scratch) and then display, it is necessary to mark Pts and DTS separately. Pts/dts is played in the PES package inside the Baotou, these two parameters are to solve the audio and video synchronization display, to prevent input cache overflow or underflow of the key. MJPEG, etc.).ĭts-decoding Time Stamp (The decoding time identifies the memento flag) when the total bytes of the access unit are removed from the decoding buffer. ![]() Pts-presentationtime Stamp (display time logo memento sign) The implied display units are present in the system objectives (H. The PES package is composed of Baotou and payload. The root unit of the PES stream is the PES package. The PES stream is a data stream formed by the processing of the ES stream through the PES packager, which completes the process of grouping, packaging, and participating in Baotou information (the first packaging of ES streams). Pes-packetized Elementary Streams (grouped es), ES-formed groupings, called PEs groupings, are a data layout used to pass ES. Each ES is composed of several access units (AU), each video au or audio au is composed of the head and coded data two project group, 1 au equivalent to encode 1 video images or 1 audio frames, it can be said that each AU is actually encoded data stream display units, This is the equivalent of 1 video images decoded or 1 audio frames sampled. After the ES stream passes through the PES packager, it is converted into a PES package.ĮS is a data stream that contains only one content, such as video only or audio only, and the PES after packaging is only one of the properties of ES, such as PES with video es only, pes with audio es only. Es-elementary Streams (Raw Stream) is a data stream that comes directly from the encoder, so the encoded video data stream (H.264,mjpeg, etc.), audio data stream (AAC), or other encoded data stream is collectively referred to. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |