All of the PES streams in a program stream are synchronized to the same clock. Transport streams TS are designed for unreliable or error-prone environments, such as network broadcasts. Also, they can contain multiple programs that are synchronized to different clocks. A transport stream adds a second layer of packetizing — the PES streams are packaged inside transport stream packets, which have a fixed size of bytes per packet.
TS packets can also contain program information streams, which are described in the following section. Each TS packet has a 4-byte header, plus an optional adaptation field that contains additional header information.
If a transport stream contains multiple programs, the stream IDs might not be unique, but the PID assignments are unique within the transport stream. Because a transport stream can carry multiple programs, there must be a way to associate the various PES packets with the programs they belong to. This Elementary Stream goes into the Packetizer. The bitrate of elementary stream can be fixed and variable too.
Which have video and audio both with data. So combined output of video , audio and data for a single channel known as Program Stream. There are no errors in program stream so it gives error free delivery.
This is followed by a 4-bit continuity counter, which usually increments with each subsequent packet of a frame, and can be used to detect missing packets. Additional optional transport fields, whose presence may be signalled in the optional adaptation field, may follow. The rest of the packet consists of payload. Packets are most often bytes in length, but some transport streams consist of byte packets which end in 16 bytes of Reed-Solomon error correction data.
The byte packet size was originally chosen for compatibility with ATM systems [1]. Each table or elementary stream in a transport stream is identified by a bit PID. This tool is really helped me a lot. U did a great job. Regards Arun Kumar. I'm not sure that it will give you all the information that you need, but that's the only one that I know.
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