[MultiMedia] Mpeg Format

Mpeg Format

• Mpeg TS: Transport Stream. 
• Mpeg PS: Program Stream.

Mpeg TS Format

• MPEG_TS_HD_NA: 192 bytes with 4 bytes zero time code.
• MPEG_TS_HD_NA_ISO: 188 bytes without time code.
• MPEG_TS_HD_NA_T: 192 bytes with 4 bytes valid time code.
• MPEG_TS_JP_T: 192 bytes with 4 bytes valid time code. Has a CP Header.

MPEG_TS_JP_T CP Header Structure

• 14 bytes header begin with 0x00 (byte_length is 10~13 bytes)
• 4 bytes time code
• 188 bytes payload begin with 0x47

MPEG_TSJP_T CP Header Structure Example

• First CP Header begin at 00 00 00 00: 00 00 00 00 00 00 00 00 00 00 [00 0F FF C0] => Byte Length = 00 0F FF C0 means the length of the first segment (Time Code (4) + Payload (188)) is 00 0F FF C0
• Time Code (4 bytes): BE 84 0A DC
• Payload (188 bytes): 47 40 00 11 00 00 B0 11 40 F2 C1 00 00 00 00 E0 ...
• Second CP Header begin at 00 0F FF CD: First CP Header Size + Byte Length = 14 + 00 0F FF C0 = 00 0F FF CD

References

• MPEG transport stream in wiki
• MPEG program stream in wiki